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Shohei MORIMOTO, Koji NAKAJIMA, Shintaro YOKOYAMA, Takafumi MAEDA, Mas ...
Article type: Article
Session ID: F-37
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The final target of this study is to propose a guideline concerning the health of elderly-people in aging society.Japanese average life span is the longest in all over the world, however, healthcare plan and system of nursing are becoming unstable. Therefore we think that it is very important to maintain elderly person's physiological function. We participated in a research project concerning daily activities of elderly-people. We investigated various measurement items, for example, local cold tolerance, physical strength and questionnaire surveys about lifestyle. This paper describes development and analyses of database that consists of 23000 items. In addition we examined the effects of their lifestyle on the health state of elderly-people.
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Noritaka NAKAYA, Kouhei KUWABARA, Hideki KUBOTA, Yasuhiro HAMADA, Mako ...
Article type: Article
Session ID: F-38
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The aim of this research is to evaluate hot outdoor environment by applying our human model for predicting body temperatures (both core and mean skin temperature) and sweating rate. In this paper, we have introduced "solar operative temperature" considering solar radiation absorbed on clothing and skin surface, and measured solar transmittance, reflectance of clothing.
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Kouhei KUWABARA, Noritaka NAKAYA, Hideki KUBOTA, Yasuhiro HAMADA, Mako ...
Article type: Article
Session ID: F-39
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The aim of this research is to protect workers and exercising people from heat disorders by predicting body temperatures (both core and mean skin temperature) and sweating rate of human. In this paper, we have proposed a method for predicting "solar operative temperature" with black and white globe thermometers, and measured solar absorptance of white globe. The predicted mean skin temperature applied solar operative temperature which was obtained with globe temperatures has agreed well with those obtained from human experiments conducted outdoors.
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Satoshi AMEMIYA, Kouhei KUWABARA, Hideki KUBOTA, Yasuhiro HAMADA, Mako ...
Article type: Article
Session ID: F-40
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The aim of this research is to propose a model for predicting heart rate in hot environment by applying our model for predicting body temperatures (both core and mean skin temperature), sweating rate. The predicted body temperatures and heart rate will be used as an index for evaluating hot environment, and for protecting people working and exercising from a physiological disorder caused by heat. In this paper, we have proposed an equation on heart rate expressed as a function of skin temperature and VO_<2max> considering an individual variability of athletic performance. The variation of human sweating rate has appeared not only between individual subjects but also between the same subjects.
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Dai SHIBAYAMA, Minako NISHIO, Yoichi ATSUMI, Shinji KIOKA, Shintaro YO ...
Article type: Article
Session ID: F-41
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This paper describes development of evaluation method to predict hand dexterity level in cold environment by using the prediction program of whole body temperatures. We measured thermal physiological and psychological responses under 24 cold conditions in a low-temperature test room for the purpose of quantifying the relation between skin temperatures and hand dexterity level. In addition, low-temperature test room experimental results were simulated by the prediction program. The calculated results well accorded with the experimental results. It was suggested that the prediction program was available for evaluation of hand dexterity level in cold environment.
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Hayato OHASHI, Yuta EZAKI, Yoshitaka HODA, Hitomi TSUTSUMI, Shin-ichi ...
Article type: Article
Session ID: F-42
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Subjective experiment was conducted to evaluate the subjective thermal comfort in the environment with spot cooling system. Six conditions, including five types of diffusers and a nozzle without diffusers were set. Seven males were exposed for 90 minutes under the conditions with spot cooling. It was found that spot cooling system without diffusers cooled down upper body of subjects, while it was possible to cool down the whole body using diffusers with 25% and 50% of opening ratio. Moreover, air velocity sensation was decreased without increasing thermal discomfort by using the diffuser. Subjects preferred the condition with the diffusers with 25% and 50% of opening ratio and 22° of discharge angle, because discomfort to thermal environment was weakened.
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Hiroko Kubo, Norio Isoda
Article type: Article
Session ID: F-43
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The present study, we measured thermal environments of bedrooms and physiological andpsychological responses on Japanese collage-age female subjects during night sleep at their houses daily lived in summer and winter. Measurements included rectal temperature (Tre), skin temperature (Tsk),heart rate, and responses to thermal sensation and comfort vote. In summer, bedroom temperatures were above 30℃ without air conditioner using, in winter they were below 15℃ at woody houses. In summer, changes in room temperature by air-conditioner affected Tsk and Tre during sleep, and the frequency of body movement during sleep increased when subjects reported to be able to sleep.In winter, the skin temperatures of insteps decreased by low room temperature, and the sleep latency was delayed.
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Akiko ISHIGURO, Shuichi HOKOI, Satoru TAKADA, Kyoji ISHIZU
Article type: Article
Session ID: F-44
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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A comfortable indoor climate for sleep would be proposed by the control of the indicators related to the physiological responses under thermal environment of bedroom. As a basic study, we perform a model analysis on the purpose of prediction of thermal changes of human body parts while sleep in summer. We analyze thermal human system in modified conditions of core and skin blood flow, thermal conductances of between adjacent layers in trunk and set point of mean skin temperature. Therefore, analysis results show that measured values of temperatures are almost explained in face-up posture by the model.
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Atsushi IWAMAE, Akiko ISHIGURO
Article type: Article
Session ID: F-45
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This paper describes the relation with temperature and human health. This is not a new theme, but our literature survey shows many Japanese have some damage of low temperature on their health even now. Based on the ambulance record in Kobe city, we analyzed the number of calling for ambulance from home at midnight. The number shows seasonal variation which suggests the temperature influence. By combined with the outdoor air temperature record, we estimated the probability of temperature damage on health. According to the field measurements of bed room temperature, we finally get the relation with room temperature and human health.
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Atsuo NOZAKI, Hisato NISHINA, Yasunori NARITA, Hidetomo YOKOYAMA, Nori ...
Article type: Article
Session ID: G-21
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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Indoor residential air pollution caused by volatile organic compounds has been a serious problem, and air pollution caused by odorants is also an important area requiring attention. Most of the researches on odorant pollution in toilets have been carried out by field surveys, and laboratory studies on this problem are very rare. Also, evaluation methods for odorants in toilets have not been established. The purpose of present study is to propose an evaluation method for toilets odorants, and then to investigate the proposed evaluation method by toilets field survey. The background ammonia concentration was around 1.0[ppm] and 1.5[ppm] at the time of urination. These results serve as reference data for models of indoor odorants released by human wastes.
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Miyuki NOGUCHI, Kazukiyo KUMAGAI, Hidetaka YANAGIDA, Yukio YANAGISAWA
Article type: Article
Session ID: G-22
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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Trichloroethylene (TCE) concentration was measured in metal-plating plants having different types of metal washing processes. Higher TCE concentrations were observed in the plants using a TCE bath for metal washing than the plant cleaning metals in a TCE spray booth. Significant differences of TCE concentration were found between the washing bathes with and without condensation coil to recover TCE vapor. Wide fluctuation of TCE concentration depending on kinds of process operations was monitored around the spray booth with a real-time sensor. The real-time monitoring is useful to control TCE concentration in the plants.
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Koichi IKEDA, U YANAGI, Naoki KAGI, Naoya NISHIMURA, Hiroshi YOSHINO, ...
Article type: Article
Session ID: G-23
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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It is important to maintain indoor air and sanitary environments in waiting lounges, office rooms and medical wards in medical facilities. But Japan has no environmental and hygiene law for medical facilities. In this study, the way of the maintenance of sanitary environments in medical facilities was examined. This study reports the measurements of temperature, humidity, airflow rate, CO, CO_2, PM and formaldehyde concentrations in waiting lounges, office rooms and medical wards of 9 medical facilities in summer. As a result, the CO_2 concentration in the waiting lounge that had a lot of out patients in that area was pretty high, therefore the capacity of the ventilating facilities might be shortage.
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Naoki KAGI, U YANAGI, Koichi IKEDA, Naoya NISHIMURA, Hideki SAITO, Kei ...
Article type: Article
Session ID: G-24
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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This study aimed at investigating particulate matter (PM) in office buildings and collection efficiency of ultra fine particles by air filter media. Particle matters (PM) in 15 off ce buildings were measured as mass concentration with a low-volume air sampler and a beta ray attenuation method, and as count concentration with a wide-range particle spectrometer (WPS). The correlation between the mass concentration of PM and PM2.5 and concentration calculated with WPS were investigated. The fine particles around 100nm diameter were not collected onto the air filter media, and the air from diffuser in the room could evacuate ultra fine particle instead of supplying the air through the air filter.
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Shiro TAKEUCHI, Takuya FURUHASHI, Masaki UCHIDA
Article type: Article
Session ID: G-25
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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We investigated the behavior of the water when using a hand-dryer, and confirmed that the water drops remaining on the tray hardly scatters around the hand-dryer. A particle visualizing system of an optical ray, and also colored water was used in the study, and it was also found that the amount of scattering water differs depending on the usage and the structure of a hand-dryer.
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Takuya FURUHASHI, Shiro TAKEUCHI, U YANAGI, Naoki KAGI, Masaki UCHIDA
Article type: Article
Session ID: G-26
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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This study aimed at investigating the behavior of airborne bacteria and aerosol when using a hand-dryer. The airborne bacteria and aerosol were measured at upper and side of the hand-dryer, and the settled bacteria were measured on the floor near the hand-dryer. The results showed that using the hand-dryer generated water droplets from the hands. Airborne bacteria upper the hand-dryer and settled bacteria on the floor mainly derived from indoor airborne bacteria, not from hands.
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Risa WATANABE, Shuzo MURAKAMI, Shinsuke KATO, Midori YOSHIKAWA, Hirosh ...
Article type: Article
Session ID: G-27
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The Authors have analyzed the behavior of mite allergens in indoors. We counted the number of airborne particulates under several heating conditions. But it was difficult to confirm behavior and dispersion of mite allergens in detail because we can't see mite allergens. So, we tried to visualize the behavior by numerical study and studied on dispersion of mite allergens under heating conditions.
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Mina FUJINO, Toshie IWATA, Hiroshi MIYAZAWA, Hiroshi YASUEDA
Article type: Article
Session ID: G-28
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The objective of this study is to identify house dust mite allergen in nursery schools. Field measurements were conducted in 5 nursery schools in summer and in winter. The concentration of mite allergen in the halls where children take a nap is higher than that in the play rooms where they have lunch. Tatami mat or carpet causes higher mite allergen levels than wooden flooring. Der 1 which adheres to the skin around the neck of the nurses is sampled 5 times a day to measure individual exposure to allergen. Their exposure to Der 1 in the houses is larger than that in the nursery schools.
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Haruki OSAWA, Motoya HAYASHI, Aya KUSAKA
Article type: Article
Session ID: G-29
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In order to know the influence of living style and building performance upon the indoor pollution with mould and mites,the number of mould on the interior surface and in the air, the numbers of mites on the floor and the amounts of allergens were measured in twelve houses during a year. The results showed the followings. The number of mould in the air and thenumber of mites on the floor changed with the temperature and the humidity. The amounts of allergen with mites changed with the number of mite. The numbers of moulds on the surface did not change with the thermal conditions. These results proved the results of the measurements which were made with about two hundred houses in summer and in winter.
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Katunori NAGANO, Takuya ADACHI, Makoto NAKAMURA, Junya TOGAWA
Article type: Article
Session ID: G-30
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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This objective is to improve the VOC adsorption performance of Wakkanai siliceous shale modified by alkaline etching method. Toluene was used as a model of VOC gas. It was found that the toluene adsorption amount decreased with increasing the relative humidity, because of competitive adsorption between the toluene and water on the pore surface. However, the toluene adsorption amounts were improved by the modification with 1.5 and 2 mol/l of NaOHsolution. It may be conclude that the VOC adsorption enhancement was supported by the formation of meso-pore less than 25Å, which is unaffected by the water adsorption.
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Saya NAKABAYASHI, Katsunori NAGANO, Makoto NAKAMURA, Junya TOGAWA
Article type: Article
Session ID: G-31
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study is aimed at the functional improvement of Wakkanai siliceous shale which has autonomous humidity controlling function in order to use as dehumidification material. The deliquescent-modified Wakkanai siliceous shale was obtained by impregnating with various concentration of lithium chloride or calcium chloride solution.Those materials were investigated the change of specific surface area, pore size distribution, water vapor absorption/desorption isotherm including their vapor absorption responses to the periodical temperature and relative humidity operation. Furthermore, the possibility to apply as dehumidification material was also evaluated.
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Katunori NAGANO, Junya TOGAWA, Makoto NAKAMURA
Article type: Article
Session ID: G-32
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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This study aims to estimate the performance of the VOC adsorption in wastewater by using Wakkanai siliceous shale. To evaluate the VOC adsorption amount, we use tetrachloroethylene (PCE) as a model of VOC in wastewater. For improving adsorption performance, modification of Wakkanai siliceous shale using organic silane agent was carried out. The adsorption amount of modified material was 5.7 times larger than that of the original rock. In addition, to evaluate the ability of regeneration, PCE-saturated modified material was heated at 150℃. The result was almost the same as before regeneration material.
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Noe OSATO, Masahiro OKANOJO, Ryuusuke GOTOUDA, Satoshi OZAWA
Article type: Article
Session ID: G-33
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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We have evaluated the performance of bioluminescence method for measuring airborne microorganisms in high cleanliness area. Our experimental studies demonstrated the following results: the detection limit of luminescence measurement using sensitive luminometer was about 4.8 cps; the background signals influenced by reagent addition and measurement environment were about 100 cps. These suggest the possibility that one cell can be measured by bioluminescence method if the background signals were reduced.
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Masahiro OKANOJO, Noe OSATO, Ryuusuke GOTOUDA, Satoshi OZAWA
Article type: Article
Session ID: G-34
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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A detection technique of amol-leveled intracellular ATP molecules in one viable cell has been developed. The technique is based on the intracellular ATP, luciferase and luciferine reaction and uses a high sensitive luminometer. One of the important issues was to reduce background signals. We realized that intrinsic fluorescence of the tube is dominant factor of the background signals and could be reduced by shielding the tube against an interior light, sunlight and UV. All experiments were carried out inside a safety cabinet, and then bioluminescence signals of 1-amol ATP molecules and also intracellular ATP molecules in one viable cell. were clearly observed.
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U Yanagi, Koichi IKEDA, Naoki KAGI, Naoya NISHIMURA, Hiroshi YOSHINO, ...
Article type: Article
Session ID: G-35
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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This paper reports the results obtained from the field measurements on indoor airborne bacteria and fungi in hospital environment. The measurements on airborne microbe concentration in waiting rooms of nine hospitals (A-I) were carried but from July 24 to August 24, 2006. Airborne bacteria concentrations were greatly influenced by the number of visitors. In the waiting rooms where many people visited, airborne bacteria concentrations were higher than 1500 cfu/m3 and this value is 3 times of the standard of Healthcare Engineering Association of Japan Standard HEAS-02-1998. Moreover, since airborne bacteria concentration is remarkably related to airborne particles larger than 2 micrometers, the measures to reduce coarse particles such as by introducing a high efficiency particulate air filter, and/or designing indoor airflow properly are necessary.
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Daisuke OKUMURA, Kazunori SHIOZAKI, Takashi MITAMURA, Yukio KANNO, Kaz ...
Article type: Article
Session ID: G-36
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The present study describes control methods for influenza virus. We verified the effect of slightly acidic electrolyzed water on influenza virus in both fluid condition and aerosol condition. By the hemagglutination test and the TCID50 test, it was confirmed that virus lost its viral activity drastically. In addition, we introduced the new system adopted electrolyzed water into school facilities. Experimental results showed the effect of keeping adequate relative humidity and decreasing airborne common bacteria and fungi.
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Astuo NOZAKI, Shun SASAKI, Yasunori NARITA
Article type: Article
Session ID: G-37
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In order to evaluate the chemical substance removal performance of a ventilation system correctly, it is important to establish a performance evaluation method. The purpose of the present study is to evaluate the removal performance of chemical substances on a ventilation system using two evaluation methods and to compare them. We experimentaly tested the ventilation system with air cleaning units, it turned out that the clean air delivery rates (CADR) of formaldehyde ranged from 29.0 to 31.4 [m^3/h] during initial operations. The correspondence rates between CADR derived from a one-pass method and that derived from a constant-emission method were 92.4 percent for formaldehyde.
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Atsuo NOZAKI, Yusuke ICHIJO, Susumu YOSHIZAWA
Article type: Article
Session ID: G-38
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The clean air delivery rates (CADR) has been used as an air cleaner's performance evaluation index. This index has been used to determine the removal performance of air cleaners. The present research has bees investigating the changes in formaldehyde removal performance of domestic air cleaners for a decade, and has improved the precision of our predictions of indoor pollutant concentration. The CADR of domestic air cleaners for formaldehyde ranged from 0 to 97.9 [m^3/h] and that for VOC's ranged from 50.9 to 215 [m^3/h]. The performance of these air cleaners has greatly improved since 1995. The correspondence rate between measured and predicted formaldehyde concentration varied between 76.6 and 99.9 [%], and for VOC's between 66.7 and 92.7 [%].
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Kazuyuki KOBAYASHI, Megumi MITSUDA, Toshimi TANAMURA, Koji OGAWA
Article type: Article
Session ID: G-39
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We evaluated influence on indoor thermal and air environment of a new system which was developed to purify pollutants generated during cooking without using an exhaust air duct.The results showed that the air cleaning system for the IH cooking heater had an effect of approximately equivalent to a range hood from the viewpoint of odor, temperature and humidity.
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Toshimi TANAMURA, Megumi MITSUDA, Shinichi WATANABE, Kazuyuki KOBAYASH ...
Article type: Article
Session ID: G-40
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The purpose of this study is that characteristics of cooking odors are shown clearly in detached houses. We investigated odor environment with odor sensors, questionnaire of residents and odor measurement method by olfaction in ten detached houses. The findings obtained are summarized as follows. It was shown that the odor level of LDK rose by cooking action.And, it was shown that when cooking was over and passed three hours, odor environment of LDK became the near level before cooking. In addition, it was revealed that the odor level of house using the new air cleaning system was the same as that of house using range hood on odor environment of LDK.
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Kazuya TAMURA, Shin NAKAMURA, Akira SUZUKI, Shinichiro KAWASAKI
Article type: Article
Session ID: G-41
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We proposed a new dry cleaning for air filters, particularly chemical filters, by using supercritical carbon dioxide. The recovery of chemical filter (305mm^*305mm^*20mmt) which consist of active carbon mainly was investigated in terms of the breakthrough curve. The recovery ratio of chemical filter increased as volume of carbon dioxide increased at the pressure 20MPa and the temperature 40℃. In particular, the recovery ratio was 99% at the 180kg-CO_2 (flow:30kg/h, cleaning time: 6h). Also, we investigated influence of the cleaning number of cycle and revealed that recovery ratio more than 90% was kept to the third cycle.
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Taro YAMAGUCHI, Masakazu HASEGAWA, Yuichi MIURA
Article type: Article
Session ID: G-42
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This paper describes a mesurement example of pressure change in a dean room under pressure control. It is difficult to adjust parameters so that all cases can perform optimal. air-conditioning operation. Although pressure change at the stationary state and at the time of starting or stopping of the air-condition fan should be thought most as important,pressure change at the time of use a spot exhaust fan or door, air-conditioning system may raise the risk of contamination. We coped with it and report in this pater.
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Yukitada MURAE, Tamio IWAMURA, Hiroyuki NAGAI, Shigeru KURIKI, Takeo K ...
Article type: Article
Session ID: G-43
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The Room Pressure Control is one of the Important Demand Performances for Contamination Control in a Cleanroom.This Paper is Outline of Basic Experiments on Room Pressure Fluctuation with Door Operation and Local Ventilation Operation, to Construct the Room Pressure Control System Corresponding to the Demand Performance.
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Hiroyuki MORIYA, Futoshi MIHASHI, Kentaro KIMURA
Article type: Article
Session ID: G-44
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this paper, we reported the performance data of the operational cleanroom with SWIT system for reducing particles and saving energy consumption, which used the compact air supply units with high induction rate near the supply surface by multiple swirling combination airflow. As results, we obtained that SWIT could keep a half number of particles in the occupied zone than return air. And high induction by air supply units is necessary to prevent high-concentration stay area in the occupied zone. There were suggested that SWIT could reduce 23% of annual energy consumption as compared with the mixing system for this cleanroom.
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Itsunari FUKUSHIMA, Takeshi BABA, Kazumi YAMAMOTO, Kouji KIYOHARA
Article type: Article
Session ID: G-45
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In local space of a cleanroom, a method to control airflow is necessary from the aspects such as energy saving. The airflow control using fan filter unit is effective for cleaning of the local space. For the optimum control, we have to examine airflow and temperature distribution beforehand. In this paper, we assume some model in full scaled cleanroom, and report experiments of airflow and temperature by using control of flan filter unit
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Takeshi BABA, Itsunari FUKUSHIMA, Kazumi YAMAMOTO, Kouji KIYOHARA
Article type: Article
Session ID: G-46
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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"Scale for Ventilation Efficiency(SVE)" is used for evaluating airflow performance. In this paper, a method is proposed for evaluating local space airflow performance, which is based on a SVE. And we simulate contamination probability in cleanroom from experiments of airflow
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Kazuhide ITO, Hajime YAMAGUCHI, Hisaharu YAGI, Kazuo NISHIKAWA
Article type: Article
Session ID: G-47
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The overarching goal of these work are to develop the numerical method which reproduces the convection, diffusion, deposition and recombination of cluster ions in air phase. Towards this end, this paper (Part 5) reports the outline of cluster ions concentration decay experiment in the cylindrical test chamber and estimation results of reaction probability and deposition velocity of ions depositing to different surface materials. The reaction probability of cluster ions depositing to electrically conductive surface was assumed to an order of 10^<-3>[-].
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Ryutaro TAKANO, Hiroki MASUDA, Shintaro YOKOYAMA, Makoto TACHINOOKA, M ...
Article type: Article
Session ID: G-48
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We developed a evaluation-control aided simulator of indoor air quality (IAQ) on the basis of k-ε-model and CFSV model. We presented several simulated results of air flow and substance concentration around human body and IAQ concentration changes in a room. This paper describes application of Boundary Element Method (BEM), especially Complex Variable BEM (CVBEM), to our evaluation-control aided simulator of IAQ for saving computing time. Thecomputer program based on CVBEM is suitable to predict air flow and IAQ distribution in a clean room and in rooms where are adopted displacement ventilation system, multi-slit ceiling air supply system (MCS) and the third kind mechanical ventilation system.
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Takahiro AKIYAMA, Hideto TAKAHASHI, Hiroshi GOMI, Hitoshi TAKEDA
Article type: Article
Session ID: G-49
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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An extended Dubinin-Radushkevich (DR) equation for predicting VOCs mixture adsorption equilibria on activated carbon has been proposed. Using Bering's mixture DR model within the framework of Myers-Prausnitz theory has derived a simple formulation of multicomponent adsorption equilibria. This equilibria equation provides following two advantages for reliable and rapid calculation of adsorption dynamics: (a)preservation of thermodynamic consistency (b)analytical form expression. This equation provides a satisfactory description of the adsorption equilibria of toluene+benzene vapors on activated carbon. Application for calculation of binary adsorption dynamics has been also successful.
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Koichi SHIMIMURA, Shigeo OOKAWARA, Kazuaki IIJIMA, Etsuro ARIKAWA, Tak ...
Article type: Article
Session ID: G-50
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study aim is to examine the improvement method for formaldehyde environment in the dissection room. In this paper, a series of process is shown using the actual dissection room of medical university. First process is grasping volatileformaldehyde quantity from former measured values of the concentration. Second process is designing improved air-conditioning system. In final process, relief effect of the system is confirmed by use of computational .fluid dynamics model and experimental measurement.
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Kazutoshi KUSAKARI, Takashi INOUE, Takanori OGUMA, Yusuke MORIHARA, Ka ...
Article type: Article
Session ID: H-5
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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By using the Internet, the questionnaire survey on the actual usage condition of air conditioner in general homes was carried out. In this report, the possession and usage condition of air conditioner, the actual usage condition of air conditioner in a main bedroom and a child's room were shown among the survey. The result showed the trend which air conditioner with lower air conditioning capacity compared to general standard was installed in the living room. However,air conditioning temperature was in appropriate range and there was no lack of air conditioning capacity confirmed.
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Ryoko SAKAI, Takashi INOUE, Takanori OGUMA, Yusuke MORIHARA, Kazuyuki ...
Article type: Article
Session ID: H-6
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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By using the Internet, the questionnaire survey on the actual usage condition of cooling system in general homes was carried out. In this report, the actual usage condition of cooling system particularly in living room and the energy consumption of cooling system were analyzed. The result showed when the residents feel hot in their homes,they don't use air conditioner immediately, but open the window or use electric fans first to use air current. The result also suggested that the preset temperature of living room and the energy of cooling system had a difference by the action of energy saving.
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Yusuke MORIHARA, Takashi INOUE, Kazutoshi KUSAKARI, Kazuyuki KOBAYASHI ...
Article type: Article
Session ID: H-7
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The questionnaire survey on the actual condition of the usage of cooling system in houses and energy consumption were carved out. In this report, the actual condition of energy consumption in houses and a gap between energy consumption and occupant's understandings were analyzed. The result shows that most occupants do not understand the fact that hot water supply is the greatest usage in houses.
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Motoji KANEKO, Ryoichi SAKURAI, Chihiro KAGAI, Yoshio GOMACHI
Article type: Article
Session ID: H-8
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This paper shows the field survey of the electric consumption and the analysis of its changing factors in a totally electrified housing complex.
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Zhongtian JIANG, Hiroshi YOSHINO, Toshiyuki WATANABE, Yasuko YOSHINO, ...
Article type: Article
Session ID: H-9
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The purpose of this survey is to investigate the actual conditions of the energy consumption, indoor thermal environment and life style of urban apartments in China. The apartment homes under investigation were located in the urban areas of seven major cities. The questionnaire survey revealed building characteristics and cooling & heating systems in use. The meter readout survey revealed monthly energy consumption fluctuation. By analyzing the results, the cooling and heating consumption of apartments in Chongqing and Nanjing have a strong correlation with the floor area of apartment unit. The cooking consumption of Harbin and the family population have a strong correlation.
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Takeshi NITTA, Saburo MURAKAWA, Daisaku NISHINA, Koji MAEDA, Yasunari ...
Article type: Article
Session ID: H-10
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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These days, it is important to survey and study on the energy consumption of buildings to establish the most suitable management methods for energy saving. However, the basic data of exhibition facilities like an art museum is insufficient.The purpose of this study is to clarify the tendencies of the energy consumption at a new art museum in Hiroshima. This paper describes the characteristics of the museum and the equipments. Furthermore, the relationships between the energy consumption and the factors such as outdoor temperature, humidity and so on are shown.
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Yasunari SHIMIZU, Saburo MURAKAWA, Daisaku NISHINA, Koji MAEDA, Takesh ...
Article type: Article
Session ID: H-11
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The purpose of this study is to clarify the energy consumption at a new art museum in Hiroshima. In this paper, we described the result of analysis on the COP of heat source system and machines. The effects of the energy conservation technologies, such as waste heat recovery, total heart exchanger, inverter controls and lighting control by human sensor were examined. Furthermore, the total effect of the technologies was evaluated in comparison to the total energy consumption of the museum.
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Daisaku NISHINA, Saburo MURAKAWA, Yoshiyuki UEMURA
Article type: Article
Session ID: H-12
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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For the energy conservation and the prevention of global warming, Cool Biz or Warm Biz was adopted in many offices of national and local governments. However, the effect of Cool Biz has not been grasped obviously. In this study, to clarify (the effect concerning with energy saving and indoor environment, the joint government building in Hiroshima city was chosen, and the collection of the data of energy consumption, the measurements of indoor climate and the questionnaire survey to the workers were conducted in August 2006. The results were compared between after and before introduction of Cool Biz.
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Kohei TSUDA, Shuzo MURAKAMI, Toshiharu IKAGA, Kengo KUMA
Article type: Article
Session ID: H-13
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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Sustainable buildings with low environmental impact have attracted great social concern. The purpose of this study is to evaluate the environmental impact of a sustainable building which utilizes local timbers and energy-saving systems quantitatively with life cycle assessment (LCA) method. In this study, the database for LCA is developed based on field survey. This paper describes the out line of the environmental impact assessment of government offce with low environmental impact based on the performance values. The effect of environmental burden reduction is evaluated quantitatively with Life-Cycle Impact assessment Method of Endpoint modeling (LIME).
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Yasuhira SHIMADA, Takashi YANAI, Hirohisa MIURA, Tamaki SHIMIZU, Masah ...
Article type: Article
Session ID: H-14
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The perimeter air conditioning system with feed-forward loop control which depends on the amount of solar radiation and outside temperature, and the floor air balance system were adopted in the office building located in the oceanfront city center. And the EMS (Energy Management System) which has the segmental zed energy measurement points and flexible parameters was adopted. In the specific floors, energy consumption is measured circumstantially. This report shows the building and system outline and the part of measuring data, and the next report shows the details of the system.
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Hirohisa MIURA, Yasuhira SHIMADA, Tamaki SHIMIZU, Masahiro IKEDA, Take ...
Article type: Article
Session ID: H-15
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In recent years, a large-scale office building that EMS (Energy Management System)is adopted is increasing. EMS is a system of grasping an energy consumption of a building. But there are few cases for which EMS is utilized sufficiently. This report introduces the outline of EMS with the effective functions and a result of data analysis in 6 months after completion of TA building .
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