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Go IWASHITA, Takaki HIBINO
Article type: Article
Session ID: E-17
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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For determining the emission rate of perceived air pollutants from building materials, the olfactometer / chamber system was developed. Since this system was based upon nordtest using CLIMPAQ, the size of developing chamber was similar to the CLIMPAQ. The airflow rate of 0.6 L/s was selected for the system, because this airflow value was required for normal sniffing by human panel.
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Hiroyuki MIYAUCHI, Takaaki MURATA, Masahiro NAKAZA, Shun-ichiro IMAMIY ...
Article type: Article
Session ID: E-18
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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We evaluate a risk of a bad smell exposition, and it is important that we take measures. We measured a bad smell level with new method developed in this study in factory workshops, and performed risk assessment using matrix. We did workshop places of a higher exposition risk with priority of improvement, improved ventilation facilities and introduction of an exhaust, sealing up of bad smell outbreak source or a change of work methods. And risk reduction of a bad smell exposition was enabled by these.
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Takaki HIBINO, Go IWASHITA
Article type: Article
Session ID: E-19
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The productivity test using one using one-dogit addition task was conducted in a room-size chamber which was assumed as a car cabin. While the physiological/psychological measurement of occupants ware conducted during the test, perceived air quality measurement was also conducted by panel as visitors. It was found that the ventilation rate in the chamber had no significant effect on the average answer score and the average accuracy of the addition task. However, the effect of ventilation was observed on the time-series accuracy change.
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Toshiya NISHIKAWA, Hiromi KOMINE, Hiroshi KIMURA, Jun-ichi KITA
Article type: Article
Session ID: E-20
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The performance test of deodorant efficiency of absorptive building materials are proposed based on MS A 1405 " Performance test of absorptive building materials of reducing indoor air pollution with small chamber -- Part 1: Measurement of adsorption flux with supplying constant concentration of Formaldehyde". The odor index of stuffy sneakers is investigated into the actual condition. The steady odor generation apparatus is developed and olfactory sensor or electric nose are adopted in measurement of odor index.
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Atsuo NOZAKI, Aya KIKKAWA, Yasunori NARITA
Article type: Article
Session ID: E-21
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The problems are testing evaluation method of gaseous pollutant removal performance is not established, and actual performance is unclear, and moreover mutual comparison of the air freshener is too difficult. We have grasped the ammonia and VOC removing performance of the atmosphere compatible products using a new test evaluation method in this report. The result was that there occurred a number of cases where the value exceeded the guideline value of VOC by spraying deodorant. In such cases, it was found that the ammonia removing performance was displayed well. Therefore, it is possible that a certain level of the TVOC value is required to remove malodorous substances such as ammonia.
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Atsuo NOZAKI, Hisato NISHINA
Article type: Article
Session ID: E-22
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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There is space in the house to cause retention of certain odorants. Toilet space is often to be uncomfortable for its elimination smell. The possible countermeasures for elimination odor are ventilation and deodorizing device. Recently, the deodorizing device that can be attached to the lavatory basin is in the stage of spread out. This equipment is the product that sucks and removes an exhaust gas of human waste efficiently. But there are many unclear points in odor material removal performance of the equipment, and it's necessary to make its reality clear. In this study, we investigate the ammonia removal performance of each deodorizer with toilet seat. As a result, ammonia's clean air delivery rate (CADR) and removal rate are 91 [%] 96 [%], 4.97 6.24 [m^3/h], respectively.
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Makoto ORII, Noriyoshi YOKOO, Syunsuke KAIDO, Tatsuo OKA
Article type: Article
Session ID: F-1
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Recently, the Central area in local cities shows the tendency to decline. Because the development of suburbs is advanced. Similarly, the Central area of Utsunomiya City is a tendency to the decline. In the study, the building of the Central area of Utsunomiya City is investigated. And, effective data is quantified. In addition, one measures to be premised on existing urban structure where the sprawl progresses is examined. The photovoltaic is done in the detached house in suburbs. The buildings of the Central area are made conservation of energy. CO2 Reduction measure in the urban size are estimated by these combinations.
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Ryota DAZAI, Chosei KASEDA, Mitsuhiro HONDA
Article type: Article
Session ID: F-2
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This report introduces new index that correctly evaluates the air-conditioning efficiency of the building. Air conditioning efficiency of the period while the heating/cooling plant is stopped cannot be evaluated by the conventional index: System COP of heating and cooling plant. With the new index, air-conditioning efficiency is always correctly evaluated without depending on operating status of the heating/cooling plant.
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Toshiyuki MITURA, Yasuhiro IMAI, Ken Hirate, Kenichi KAJIMOTO, Masaaki ...
Article type: Article
Session ID: F-3
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This report shows the investigation of Design for Environment(DfE) conducted by Building Contractors Society (BCS) in 2009. Many companies that had a design department positively used CASBEE and a ratio of high rank building tended to increase year by year. The CO_2 emission reduction of the buildings designed by the BCS companies for energy consumption in operation phase was estimated to be about 230,000t-CO_2 /year compared with the buildings that exactly satisfied the act on the rational use of energy.
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Yoichi TANABE, Harunori YOSHIDA, Hisataka KITORA, Susumu HORIKAWA, Hir ...
Article type: Article
Session ID: F-4
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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We made a proposal for a Low-CO_2 Type Ecological Energy-saving Building Grading Test. Today Saving energy and CO_2-emission is very important. But there are no clear index for saving energy and CO_2-emission in operating buildings. In Japan, CASBEE is the most famous index for building environment efficiency. But CASBEE is all-round index. It's not specialized index for saving energy and CO_2-emission. And so we made clear and easy-to-use specialized Grading Test. This test uses energy consumption volume per unit area for main index and adds in some corrected items. So this grading is associated with the amount of energy consumption.
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Go YAMANAKA, Toshiharu IKAGA, Shuzo MURAKAMI, Kiyotaka DEGUCHI, Kunita ...
Article type: Article
Session ID: F-5
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Vernacular dwellings incorporate various effective techniques to improve the quality of the indoor environment by making full use of natural power. It is therefore expected to utilize their design concepts in making modem environmentally symbiotic housings. Kasbah is one of Vernacular dwellings in hot-dry area, and utilizing thermal insulation and heat storage performance of adobe effectively. In this paper, the Kasbah in Morocco is measured on the spot. Based on these data, effectiveness of thermal insulation and heat storage performance of adobe is confirmed.
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Haruka UEDA, Chosei KASEDA, Ryota DAZAI, Toshiharu IKAGA, Takuto YOSHI ...
Article type: Article
Session ID: F-6
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Demands among office buildings for workplace productivity and energy-saving benefit are increasing. This research aims to examine the influence upon thermal sensation and workplace productivity by fluctuation of the indoor temperature and the airflow. Subject experiments in a climate chamber were conducted. The decrease of the indoor temperature at the middle of a task was effective for maintenance or improvement of work performance. The fluctuation of temperature consumed less energy than a constant control of 25℃. In the indoor temperature of 28℃, the improvements of subjects' thermal sensation, thermal satisfaction and work performance by the airflow were found.
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Takuto YOSHIDA, Toshiharu IKAGA, Haruka UEDA, Ryota DAZAI, Noriaki SAT ...
Article type: Article
Session ID: F-7
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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Demands on workplace productivity and saving energy in office buildings are more and more increasing. This research aims to examine the influence upon thermal sensation and workplace productivity by fluctuation of indoor temperature and airflow Subjective experiments in a climate chamber were conducted. Thermal sensation and satisfaction relate the fluctuation of temperature, and that is different due to temperatures subjected during the resting state. There is response time lag of performance fluctuation. Fluctuation of motivation and performance by airflow were different by airflow styles.
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Noriaki SATO, Toshiharu IKAGA, Kazuyoshi HARIMOTO, Maki ICHIHARA
Article type: Article
Session ID: F-8
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This paper reports the effects on productivity, psychology and physiology caused by daylighting in the morning. This study used north window lighting to avoid adverse effect, for example, glare of direct streamer and sunlight heat. In this paper, productivity, psychology and physiology are evaluated by using the quiz and the questionnaire as self-assessment form. As an investigation result, improvement of productivity was observed by the effect of sun light. For example Score of the mind map was improved by 50 word on average (p<0.006).
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Tomohiro WARITA, Toshiharu IKAGA, Kazuyoshi HARIMOTO, Maki ICHIHARA, N ...
Article type: Article
Session ID: F-9
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In recent years, the needs to improve the productivity, fit the individual preferences and reduce the stress for the illumination of the working environment arise. However, there are few studies show the influence on productivity which caused by illumination and color temperature. In this study, we try to find out the influence on the illuminance and color temperature for productivity and fatigue by the subjective experiment and different work content. In addition, we provide the evaluation of productivity on the illumination of the working environment.
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Hiroki TAKAHASHI, Shinsuke KATO, Masaaki HIGUCHI, Takeshi ISHIGURO, Ke ...
Article type: Article
Session ID: F-10
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The responses of five human subjects to four indoor airborne odors (lavender, peppermint, cypress, and carpet tile) were examined to determine the effect of perceived air quality and odor type and duration on several psycho-physiological variables during periods of rest and while performing intellectual tasks. Exposure to a preferred odor, despite its type, may improve comfort, satisfaction and mood, as well as increasing self-rating work efficiency, and may also enhance the activity of the para-sympathetic system. Sensitivity to a preferred odor was higher at rest than during a task. The exposure time that produces a positive effect on a subject's physiological responses differs with activity level, being one minute during work and ten minutes when at rest.
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Masato KIMURA, Toshiharu IKAGA, Takehisa HIRAYAMA, Yoshihisa HIRAYAMA, ...
Article type: Article
Session ID: F-11
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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Nowadays, the number of people need to be cared in special nursing home are increasing by falling birthrate and aging population. But there are few researches about thermal environment and productivity in a facility. So the purpose of this study is to measure thermal environment and effect on productivity. Therefore, we measured and conducted questionnaire survey at the special nursing home for the aged that is introduced of radiant cooling and heating system.
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Yoshio MASUKAWA, Yoshinori KIMURA, Shigeyuki MATSUOKA
Article type: Article
Session ID: F-12
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The BEMS data often contains missing values and outliers, and they disturb the energy fault detection. This paper describes the definition and the feature of missing values and outliers in the BEMS data, and the method of handling them for the energy fault detection. In this R&D, we examined the method of detecting the outliers included in integrated values measured with the meters that transmit the pulse, and adopted it.
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Shigeyuki MATSUOKA, Yoshio MASUKAWA, Yoshinori KIMURA
Article type: Article
Session ID: F-13
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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In this R&D, We established rule for detecting energy fault of appliances. In this rule, it becomes the precondition to measure each circuit in the distribution boards for electric lights. We examined possible energy conservation by analyzing actual energy consumption data obtained from vending machine set in some office building. This report describes the realities energy consumption of the vending machine and an examination result of possible energy conservation.
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Yoshinori KIMURA, Yoshio MASUKAWA, Shigeyuki MATSUOKA
Article type: Article
Session ID: F-14
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In four-pipe VAV air conditioning system without cooling/heating mode recognition system, energy fault such as increased inverter output caused by unnecessary cooling/heating action might be generated. As a countermeasure for the VAV system for certain office building, adoption of cooling/heating mode recognition system is reviewed and estimated power consumption reduction ratio is 29.2 %.
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Shigehiro ICHINOSE, Kazuo NAKAI, Ryoichi KUDO, Kazuyasu GODA, Kazunobu ...
Article type: Article
Session ID: F-15
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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As global environmental problem such as climate change become a significant issue, we should take measure to various energy saving method for buildings to cope with it. Although it is said that installing high efficiency HVAC system into buildings is one of the most effective method, life cycle commissioning process should be applied during endurance period to optimize operational state or its energy saving performance. Aiming to achieve goal, we applied life cycle commissioning to existing HVAC system. About ten years trial results are shown Part.1 through Part.3.
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Kazuo NAKAI, Shigehiro ICHINOSE, Kazuyasu GODA, Ryoichi KUDO, Kazunobu ...
Article type: Article
Session ID: F-16
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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In order to reduce the energy consumption of G-building's highly efficient air conditioning system, we analyzed the BEMS data of past seven years. After that, we picked out several methods that seemed to accomplish the energy-saving by simple adjustment, and we tried improving operational method of air conditioning system at 2008 and 2009. As a result of the trial, we confirmed the big energy-saving effect that was achieved by changing the heat source operational method and adjusting the control parameters of VSD pumps and VAV air handling units.
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Kazuyuasu GODA, Kazuo NAKAI, Shigehiro ICHINOSE, Ryoichi KUDO, Kazunob ...
Article type: Article
Session ID: F-17
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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We are always anxious for the arrival of the Real Smart Building Energy Management Systems when analyze the data of energy conservation studies. We tried to make up a reasonable BEMS to realize the energy conservation of high effciency air conditioning systems in G-building Project. As they say, in order to develop the smart BEMS, .there are so many aspects, Hardware, Software, Communication Network, and so on. At first, we focus how to analyze the Building Energy Data for suitable tuning on Operation Stage. We picked up the several terms for energy saving y by TAB, in this report.
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Hiroo IZUMIYAMA, Mitsuhiro YOSHIDA, Hajime ISHIZUKA, Hideaki YAMAUCHI
Article type: Article
Session ID: F-18
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The Optimal Operation with building mechanical equipment has been taken notice due to energy saving, global warming, running cost reduction and commissioning concept dissemination. On the other hand there occur a number of operational faults to thwart the optimal operation after delivery of new building because appropriate testing, adjusting and balancing are carried out under restricted conditions. The series of paper illustrates how the optimal operation has come into effect in a high-rise office building for two-year operation after delivery. The series consists of four papers and this first paper elucidates the comprehensive scheme of the activity.
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Hajime ISHIZUKA, Mitsuhiro YOSHIDA, Hideaki YAMAUCHI, Hiroo IZUMIYAMA
Article type: Article
Session ID: F-19
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The Optimal Operation with building mechanical equipment has been taken notice due to energy saving, global warming, running cost reduction and commissioning concept dissemination. On the other hand there occur a number of operational faults to thwart the optimal operation after delivery of new building because appropriate testing, adjusting and balancing are carried out under restricted conditions. The series of paper illustrates how the optimal operation has come into effect in a high-rise office building for two-year operation after delivery. The second paper elucidates the BEMS and installed useful graphs as an appraisal tools.
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Mitsuhiro YOSHIDA, Hiroo IZUMIYAMA, Hajime ISHIZUKA, Hideaki YAMAUCHI
Article type: Article
Session ID: F-20
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The Optimal Operation with building mechanical equipment has been taken notice due to energy saving, global warming, running cost reduction and commissioning concept dissemination. On the other hand there occur a number of operational faults to thwart the optimal operation after delivery of new building because appropriate testing, adjusting and balancing are carried out under restricted conditions. The series of paper illustrates how the optimal operation has come into effect in a high-rise office building for two-year operation after delivery. The third paper elucidates how the building equipment has been operated through BEMS.
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Hideaki YAMAUCHI, Hajime ISHIZUKA, Mitsuhiro YOSHIDA, Hiroo IZUMIYAMA
Article type: Article
Session ID: F-21
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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The Optimal Operation with building mechanical equipment has been taken notice due to energy saving, global warming, running cost reduction and commissioning concept dissemination. On the other hand there occur a number of operational faults to thwart the optimal operation after delivery of new building because appropriate testing, adjusting and balancing are carried out under restricted conditions. The series of paper illustrates how the optimal operation has come into effect in a high-rise office building for two-year operation after delivery. The fourth paper elucidates how the fault reform activities were carried out on the ice-storage system and secondary chill water supply.
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Kengo NAGASAKI, Tetsuo HAYASHI, Koji NOMURA
Article type: Article
Session ID: G-1
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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To know the reality of China's energy consumption in housing, make housing survey in China. To identify energy consumption and carbon emissions in China's housing. And, calculate energy consumption and carbon emissions in China's housing for Total Energy Simulation. Finally, we consider how to reduce energy consumption and carbon emissions taken into account.
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Tianchi HU, Hiroshi YOSHINO, Zhongtian JIANG, Jie ZHOU
Article type: Article
Session ID: G-2
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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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 so as to estimate the future trend of residential energy consumption and indoor environment. The apartments under investigation were located in the urban areas of nine major cities. Questionnaire survey was used to examine the building characteristics and the heating and cooling systems. The recorded meter readings showed that monthly energy consumption varied amon nine cities. By analyzing, energy consumption of the apartments in Chongqing is the largest consumer with 19.2GJ/year among nine cities.
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Kyohei ONO, Keiko MIYAZAKI, Hiroto TAKAGUCHI
Article type: Article
Session ID: G-3
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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We investigated residential energy consumption and indoor thermal conditions of housing in Cambodia. The methods of investigation are the location surveying and hearing. The thermal conditions in the houses are analyzed, and six types of houses are compared from a thermal point of view. During daytime, the room condition of the traditional house is due to radiation heat from the poor roof. In the concrete house, framing in the ceiling avoid rise in room temperature. Residential energy consumptions of three houses installed with an air conditioner are more than half of that in Japan.
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Takao YOSHIDA, Koki KIKUTA, Hirofumi HAYAMA, Junichi NAGANUMA
Article type: Article
Session ID: G-4
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Recently most houses in Hokkaido are more highly insulated and airtight, in addition heating and cooling free houses are proposed. But estimate the impact of these dwelling performance on indoor environment and energy consumption is not clear. The aim of this study is to clarify the problems to accomplish heating and cooling free houses by actual condition survey. In this paper, we report comparison of before and after habitation based on long term field survey.
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Kenichiro HASE, Mari MIYATANI, Hiroo TARUMI
Article type: Article
Session ID: G-5
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The energy-saving retrofit of the existing houses is required in order to reduce the carbon dioxide emission from a ,housing sector. In this research, detached houses located in Ishikawa Prefecture which carried out energy-saving retrofit, such as thickening heat insulation of an outer wall or changing a hot-water supply machine to a heat pump type, are taken up for the investigation. This report describes the following matters: 1) The contents of the energy-saving retrofit in each residence, 2) The method of investigation, 3) The example of investigation results of the energy consumed before and behind the retrofit.
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Mari MIYATANI, Kenichiro HASE, Hiroo TARUMI
Article type: Article
Session ID: G-6
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The energy-saving retrofit of the existing houses is required in order to reduce the carbon dioxide emission from a housing sector. In this research, detached houses located in Ishikawa Prefecture which carried out energy-saving retrofit, such as thickening heat insulation of an outer wall or changing a hot-water supply machine to a heat pump type, are taken up for the investigation. This report describes the following matters: 1) The reduction effect of the annual energy expense, a primary energy amount of consumption, and carbon-dioxide emissions in each residence, 2) Extraction of the energy-saving retrofit house where the effect is high.
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Yutaka SATO, Kimiko KOHRI
Article type: Article
Session ID: G-7
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This paper presented the results of a questionnaire investigation for detached houses in Tochigi. The results of self-evaluation by the residents on the behavior that affects the residential energy consumption were analyzed and the relationship between the consciousness of energy conservation and energy consumption was shown.
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Tadayuki FUJII, Yohei IWASHIMA, Takamitsu ENDO, Takuya HIROSE, Hideto ...
Article type: Article
Session ID: G-8
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Insulation renovation of existing apartments is said that it is important to reduce the environmental load, recently. To investigate insulation efficiency of existing apartments is necessary to verify the environmental reduction of Insulation renovation. But, insulation efficiency of existing apartments isn't clear until this day. In this study, we first understood the fact of existing apartment's insulation efficiency, and evaluate significance of insulation renovation from the perspective of renovation costs and CO_2 emission.
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Kyoko SHUKU
Article type: Article
Session ID: G-9
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The number of the home-use central air-conditioning systems has increased recently as highly insulated and highly airtight house has been spreading. This ongoing project measures the operational condition of the air-conditioning systems, indoor thermal environments and energy consumed etc. in 7 households (5 central air-conditioning system users and 2 individual air-conditioner user) around Tokai area. The third paper is reporting on the measurement results of 2009-2010.
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Akio SAGAE, Michihiko NAKAMURA, Takeshi FUJIMOTO, Fumihiro MAEDA, Tats ...
Article type: Article
Session ID: G-10
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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In an indoor speed skating arena completed in Obihiro-city, in charge of heat between big arena and room environment inspection duties to relate to moisture. There are many problems to a design and performance inspection after the completion here. Carried out some kind air flow simulation of big arena and measured of long-term temperature and humidity and energy consumption, continuing examination of promotion of efficiency sake of reduction and water use.
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Michihiko NAKAMURA, Akio SAGAE, Shotaro SHIMIZU, Takeshi FUJIMOTO, Fum ...
Article type: Article
Session ID: G-11
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The purpose of this study is to verify the energy characteristic of an indoor Speed Skating Rink, and to obtain useful data for the reduction of the operation energy. In this paper, we describe the outline of the building, air conditioning system and ice making system. As the results of CFD analysis, it found that the indoor air temperature of the arena was about 13 degrees and the air flow velocity was from 0.2m/s to 0.4m/s. As the results of energy simulation, it found that air conditioning load for the ice making period was heating load.
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Michihiko NAKAMURA, Akio SAGAE, Shotaro SHIMIZU, Takeshi FUJIMOTO, Fum ...
Article type: Article
Session ID: G-12
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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In this paper, we calculated the air conditioning load of each indoor air temperature condition and ice making condition. As the results, it found that even if it is a continuous air conditioning for 24 hours, the energy consumption could be reduced according to the condition of systems. Moreover, we analyzed the operation results of air conditioning system and ice making system. As the results, there is a negative correlation in the average air conditioning load of the day and the outside air temperature degree.
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Akira OKAGAKI, Hiroaki SATO
Article type: Article
Session ID: G-13
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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To reduce the environmental load at broadcast station, energy measuring system was planned and commissioning process was executed for two years at operating phase. As a result of commissioning, 20% reduction of heat load and 10% reduction of primary energy consumption was achieved at the year second compared with the year first after starting operation of the building.
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Osamu YOSHINAGA, Ikutaro YAMADA, Akinori TAKEYASU
Article type: Article
Session ID: G-14
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This report describes the result of the system coefficient of performance(system COP) at OMS(General Merchandise Store) using actual operation data. And the evaluation of energy producing system adopted centrifugal chiller, ice storage tank and inverter controlled centrifugal chiller is compared.
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Yuji ISHIDA, Isao IBA, Masahiko HAMAMURA, Toshiyuki MIYASHITA, Hideki ...
Article type: Article
Session ID: G-15
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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Large commercial facilities have mainly used the absorption chiller-heater capable of responding the cooling/heating demand with one unit. However, adoption of electrical heat source has increased which responds to the large capacity by connecting better efficient module heat pump chiller. We remotely monitored the energy measurement and surveyed the actual conditions of the air-conditioning heat source for seven months with various measurement devices installed around the heat source equipment at our latest jobsite. In this paper, we will introduce our findings.
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Yoshiaki HASEGAWA, Munetaka ISHIKAWA, Manami SATOU
Article type: Article
Session ID: G-16
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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In this study the energy and water consumption in large commercial building were investigated. The results are as follows. : 1) Air conditioning influences the annual fluctuation of energy consumption. 2) The energy usage of restaurant and foods store is dispersed to a great extent. 3) The number of customer has a significant impact on water consumption, especially in lavatory.
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Kaori SHIRAISHI, Daisuke NARUMI, Yohei YAMAGUCHI, Yoshiyuki SHIMODA, S ...
Article type: Article
Session ID: G-17
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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This paper reports the result of measurement of energy consumption of two retail stores. The purpose of this measurement is to clarify the energy consumption characteristics of the floor selling dietary items using refrigeration cabinets in contrast with floors selling clothing and miscellaneous daily goods. While in floors for clothing and miscellaneous daily goods, energy consumption for lighting and cooling is dominant, in the floor for dietary items, more than half of energy is consumed for operating refrigeration cabinets. Energy consumption for heating is larger than cooling due to leaked air from cabinets.
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Yurika TANAKA, Koki KIKUTA, Hirofumi HAYAMA
Article type: Article
Session ID: G-18
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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The Revised Law Concerning Energy Conservation Law was enforced in April 2009, therefore it is necessary for convenience store to grasp its energy consumption and save it. But the present conditions of CVS in cold and snowy regions like Hokkaido haven't been made clear. The aim of this study is to grasp the present conditions of thermal environment and energy consumption of CVS in cold and snowy regions. In this paper, we report thermal environment and electricity consumption in winter season.
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Choyu Watanabe, Hiroshi Nakayama, Hidetoshi Miyata, Yoichi Miyaoka, Sh ...
Article type: Article
Session ID: G-19
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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We report the results of measurements of indoor thermal loads in two large electric-home-appliance retail stores, in which EHP and/or GHP are used for air-conditioning, with attention to the influence of outdoor air temperature distributions on thermal load characteristics. Based on the measured results we made the indoor thermal load model of this type of stores ith large indoor heat sources. We calculated the annual thermal loads in three cities with different meteorological conditions using this thermal load model and Expanded AMeDAS weather data, and found that the cooling load was as larger as the heating load even in a northern city in Japan.
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Hideharu KOMODA, Hideki TANAKA, Hideharu NIWA, Rie CHIBA, Hirotoshi KA ...
Article type: Article
Session ID: H-1
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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LCEM tool has been developed as system simulation tool for life cycle energy management of air conditioning system. LCEM tool consists of a lot of "Objects" which are defined in each component or equipment for air conditioning system. In this paper firstly states of development and maintenance of "Objects" for LCEM tool Ver.3 are described. And the newly developed and improved some objects and some support tools are introduced.
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Masaya OKUMIYA, Hideki TANAKA, Tatsuo NAGAI, Gyuyoung YOON, Takeshi WA ...
Article type: Article
Session ID: H-2
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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To evaluate prediction results for the behavior and energy consumption of HYAC system by using newly developed simulation tool "LCEM", comparison of the results between LCEM and HASP/ACSS was conducted. HASP/ACSS is the widely used in Japan and validity of it is accepted widely. According to this work, it can be concluded that the prediction results of LCEM is considered as reasonable from many point of view.
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Satoshi INOUE, Kazuo NAKAI, Ryoji MURANISHI, Masaya OKUMIYA, Hideharu ...
Article type: Article
Session ID: H-3
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
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In this report, LCEM tool is actually applied from the design phase of the repair work of an existing building in the trial run phase. It reports on the content that examines the method of using LCEM tool at each phase at the life cycle like the selection of the air-conditioning system at the design phase, the setting of the management target value, the confirmation of the order equipment specification at the construction phase, and the method of correcting the calculation value and the actual measurement value at the trial run phase.
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Katsuhiko SHIBATA, Shigeo MITSUNO, Yuichiro TAGUCHI, Hideharu NIWA, Ma ...
Article type: Article
Session ID: H-4
Published: August 12, 2010
Released on J-STAGE: August 31, 2017
CONFERENCE PROCEEDINGS
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We applied LCEM for test and commissioning of the heat source system at renewal construction phase. In the summer of one year after hand over, the performance evaluation was done from the test and commissioning and simulation results using LCEM tool while really operating at on-time. As a result, there is a possibility that COP of heat source system improves by 3.7% when the mode of operation of the heat source is changed in peak load of summer. Moreover, in summer season there is a possibility that COP improves by 14%.
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