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Article type: Cover
Pages
Cover1-
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Article type: Index
Pages
A1-A52
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Tatsuhiko NAKATOU, Masayuki OTSUKA, Kousuke TSUKAMOTO, Hiromichi IIDA
Article type: Article
Session ID: A-20
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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PEX pipe is widely used as the material of pipes for water supply including hot water. We used sample pipes that had been used in the field for approximately 15 years to examine their deterioration conditions through mechanistic diagnosis (i.e. tensile strength test, bend test, etc.) and chemical diagnosis (i.e. heat aging test). The results suggest no evidence of deterioration of the pipes for both cold and hot water. OIT shows that the coupling of hot water feed pipes had the maximum deterioration. However, it was assumed that its remaining life should be approximate 60 years.
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Hiromichi IIDA, Masayuki OTSUKA, Kousuke TSUKAMOTO, Tatsuhiko NAKATOU
Article type: Article
Session ID: A-21
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We examined the serviceability (replacement) of the pipes used in the construction method called Header-Conduit Piping System which is widely used for plumbing (cold & hot water) in complex housing. We used sample pipes that have been used in the field for about 15 years and sample pipes which we intentionally bent to simulate long-term service, so that we could study their serviceability under the actual design and construction conditions. As a result, it required two people to replace the pipes through a repeated push-pull method and the required force was rather large.
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Asuka FUKUDA, Takao FUJIWARA, Toshihisa MATSUSHIMA, Shinichirou GOTO
Article type: Article
Session ID: A-22
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this research of convenience and instantaneous hot-water supply device of the plumbing system that established the returned hot-water piping, we were combined immediately hot-water supply device unit by heat loss and water head loss by the difference of the piping pattern that was measured about the immediate hot water function (the circulation method).
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Shinichirou GOTO, Toshihisa MATSUSHIMA, Takao FUJIWARA, Asuka FUKUDA
Article type: Article
Session ID: A-23
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We studied the circulation mechanism in the part-loop plumbing system that added a hot-water function immediately, following the 1st report. As the inspection model, we calculated the water head-loss that was assumed a piping net to the part-loop plumbing and compared with the experiment values for studying the circulation phenomenon.
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Takashi NAGAYAMA, Akira ICHINOE, Yukinobu YOKOTE, Youichi HARADA, Hisa ...
Article type: Article
Session ID: A-24
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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About a seal material to use for a joint of the plumbing, We reported about the return torque test result of the pipe which was connected on the screw joining. The next examination problem was provided than the result that we analyzed contents of the return torque examination. 1. Evaluation of adhesion strength can adopt a return torque examination. 2. The size of the plumbing that showed the most stable result was 25A. 3. We can judge adhesion strength to be 70% of greatest return toque value.
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Katsumi TAKE, Toshihisa MATSUSHIMA, Toshiaki KIUCHI, Yuzuru ANDOH, Nor ...
Article type: Article
Session ID: A-25
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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About a seal material to use for a joint of the plumbing, We reported about the pulling strength test result of the pipe which was connected on the screw joining. The next examination problem was provided than the result that we analyzed contents of the pulling strength examination of liquid screw joining seal materials with a metal test pieces. 1. By pulling examination, unevenness by a kind of a seal material was big. 2. The sates of break were difference by a kind of a seal material. 3.By a pulling examination, we cannot evaluate adhesion strength.
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Sadanori KODERA, Kyosuke SAKAUE, Nobuyuki TSUKAGOSHI, Masao USUI
Article type: Article
Session ID: A-26
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We make drainage and examine update and repair of a pipe system to repair it for a house without washing facilities in a lease house mainly on Showa 40's. In this experimental study,We made existing drainage and tested drainage ability with a thing of the cause by repair and a thing by a siphon drainage system to a pipe and arranged a judgment for practical use and problems.
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Takehiko MITSUNAGA, Kyosuke SAKAUE, Nobuyuki TSUKAGOSHI, Yoshiki YANAG ...
Article type: Article
Session ID: A-27
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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A siphon drainage system using slim pipes is a slopeless drainage system unlike gravity drainage systems. Therefore they may be settled cross piping problems. Consequently, in this paper, we studied on basic values, which influences of pipe bendings and bendings in a row, of sighon pipes with siphon drainage systems. In addition, using actual-size drainage experimental apparatus in laboratory, fixture drainage characteristics of siphon drainage system in apaliment houses were reseached And these conclusions were compared to SHASE-S206.
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Yoshiki YANAGISAWA, Kyosuke SAKAUE, Nobuyuki TSUKAGOSHI, Takehiko MITS ...
Article type: Article
Session ID: A-28
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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A Siphon drainage system is the full-water flow drainage system using small diameter pipes. Because this system needs not necessarily a down slope, it has the potentiality to extend the choice of a building design. And in addition, due to the full-water flow,this system makes it easy to take solid refuses especially in disposer drainage. So, in this paper, in order to put this system to practical use, discharge characteristics and drainage performances of this system for disposers in apartment houses were examined.
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Noriyuki KOSHIMIZU, Kyosuke SAKAUE, Nobuyuki TSUKAGOSHI, SHII Han, Jou ...
Article type: Article
Session ID: A-29
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this paper I studied on experimental studies on discharge characteristics of siphon drainage system for disposers. To know the characteristic of siphon discharge system, the characteristics of siphon system and non siphon system which didn't have down part at discharge spout were analyzed. In addition, the canying performance of the disposer were analyzed.
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Michihiro KOIKE, Nobuyuki TSUKAGOSHI, Kyosuke SAKAUE, Koichiro OKAMOTO ...
Article type: Article
Session ID: A-30
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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A siphonic drainage system is a kind of slope-less drainage system using small diameter pipes. This study is focused on practical use of siphonic drainage for newly developed apartment. In this paper, we defined desirable performance for this drainage from the view point of buildings design. In this case we applied conventional waste trap. Because it's indispensable considering current regulation. We measured ability for drainage of this system and defined problems.
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Koichiro OKAMOTO, Nobuyuki TSUKAGOSHI, Kyosuke SAKAUE, Hideyuki MARUYA ...
Article type: Article
Session ID: A-31
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In the previous report we pointed several problems for siphonic drainage system. They are short convey distance, seal water loss and the noise. In this paper we proposed the solution for these problems by applying temporary tank. By measuring the drainage performance of this new model by experiments, we concluded that the model effectively solved the problems in the previous report.
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Hideyuki MARUYAMA, Nobuyuki TSUKAGOSHI, Kyosuke SAKAUE, Koichiro OKAMO ...
Article type: Article
Session ID: A-32
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In our previous report, we suggested the method that temporary tank is one of the new methods of a siphonic drainage system and measured its performance. As a result, the method was effective for problem solution. But it had a drawback that is short convey distance. In this paper, we report 7m convey distance that is enough for practical building equipment design. This distance was achieved by improved shape of temporary tank.
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Shuichi ISHIMURA, Nobuyuki TSUKAGOSHI, Kyosuke SAKAUE, Takaaki KOGA, K ...
Article type: Article
Session ID: A-33
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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NCDS is a siphon drainage system using slim pipes. We have worked on the basic studies about NCDS and the solutions of problems for practical use. It is easier that NCDS is applied to rain-drainage than other drainage, because rain-drainage contains neither oil nor solid, and doesn't need the seal water. And the building externals improve by applying NCDS that can conceal the drainpipe without influencing the floor planning. On this report, we sum the current results of our studies, and consider practical use to rain-drainage of NCDS.
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Hiroshi ISHIKAWA, Masayuki OTSUKA, Takatoshi ISHII, Takeshi AOI
Article type: Article
Session ID: A-34
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study aims to develop the vacuum toilet system for building conversion. Continue to the Part 1, authors studied its evaluation methods and investigated its competence of transportation and other performances on site.
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Jian MA, Masayuki OTSUKA, Takeshi AOI
Article type: Article
Session ID: A-35
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This Study focuses on the development of a pipe route newly-built that is designed to respond the drain inflows drainage stack in the exclusive space. To be more specific, a new gateway branch pipe system still adopts the conventional gravity drainage system while incorporating a force drainage system using a pressure pump .The equivalent constant flow of the system had been explored in the study which depend on the variation of water seal or the pressure flow more and moreover the result will be used to determine the applicable height.
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Takatoshi ISHII, Masayuki OTSUKA
Article type: Article
Session ID: A-36
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The study aims to discuss through the characteristics of fixture drainage and design method of the horizontal drainage pipe system for tankless water closet. In this paper, the authors propose the method to discharge for Tankless water closet and calculate at practical level the decrease of the average flow rate of fixture "qd" the experimental pipe work..
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Satoshi HIROTA, Masayuki OTSUKA, Takatoshi ISHII
Article type: Article
Session ID: A-37
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The study aims to discuss through the characteristics of fixture drainage and design method of the horizonta: drainage pipe system for tankless water closet and Ultra Low Flow water closet. In this paper, the authors propose the method to calculate at practical level the decrease of the average flow rate of fixture "qd" and method to clarify the carrying performance using the experimental pipe work..
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Yue ZHANG, Motoyasu KAMATA, Kyousuke SAKAUE
Article type: Article
Session ID: A-38
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this paper, firstly, the relation between the pressure and the seal water loss was examined with the system minimum pressure data obtained in the practical drainage system. And in addition, the test pressure wave that used three kinds of fiequencies was made, and the relation between the pressure and the seal water loss was examined with the testing device for trap performance.
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Hana KURIYAMA, Kyosuke SAKAUE, Takehiko MITSUNAGA, Yoshiki YANAGISAWA, ...
Article type: Article
Session ID: A-39
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this paper, we studied on a new test method of trap performance using Simple Testing Devises. This method use pressure waves which are compounded three sine waves into. To know the effectiveness of the method, we experimented with tests with the use of single sine waves. In addition, we studied the effectiveness of Simple Testing Devises by comparing the result of the method using Simple Testing Devises with using Accurate Testing Devises.
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Susumu TAKACHI, Kazuya KOMINAMI, Kaori KOBAYAKAWA, Takashi OKAZAKI
Article type: Article
Session ID: A-40
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Purpose of this research is to develop oil-interceptor with the proper capacity and structure which meets current condition. In this research, the writer reported result of the experiment about type of oil-interceptor which can adhere to effluent standard and detention time regarding retention efficiency which is base of this research.
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Kazuya KOMINAMI, Kaori KOBAYAKAWA, Susumu TAKACHI
Article type: Article
Session ID: A-41
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The retention efficiency of residue of low type grease-interceptor was checked, and selection of false-residue for an examination was tried. As the result, the structure of grease-interceptor and inflow greatly influence residue outflow, and use of the polystyrene resin is thought about for false-residue.
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Norihiro HONGO, Kyousuke SAKAUE, Masayuki OTSUKA
Article type: Article
Session ID: A-42
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this paper, vent resistance of the bent cap marketed is grasped and the vent resistance which is consulted at the design of vent pipe is shown, and the data towards SHASE-S218 amendment is stored. Additionally, the experimental device which grasps vent resistance, and its method are shown.
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Shinnosuke SUGITA, Kyousuke SAKAUE, Masaki TOSAKA, Tosihiko KAWAMURA
Article type: Article
Session ID: A-43
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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It unites it to a handy method that does the waste water with detergent load provided for by the appendix of SHASE-S218-1999(Drain ability examination method of drain standpipe system of housing complex) with a test tube. For that the test methods of foaming height was reviewed, and the size of the test tube, the shake of the test tube, and the measuring method of Foaming power etc. were experimented, and examined.
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Tamio Iwamura, Kuniharu Kojima, Michio Kondo, Yoshiaki Sugawara, Seizo ...
Article type: Article
Session ID: A-44
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The leakage inspection of the Drainage System is an important examination that should be done when thinking about the water leak accident that occurs after constructing the building. Recently, the method of enforceable without using water of the leakage examination of the Drainage System in air is proposed. This study is the one that the investigation research on the effectiveness of the leakage inspection method of the Drainage System by the air pressure test was done through two or more field experiments.
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Hisashi FUJITA, Shinichi MIYAURA
Article type: Article
Session ID: A-45
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Drainage flow examination is usually carried out with plastic test balls, which sometimes fail to reach the collecting point. Ne considered that this failure was caused by the bounce of test balls, and made test balls with less-bounce material. The ass-bounce balls as well as conventional plastic balls were put into a toilet on the top floor of 17-storied drainage system. Only 2% of the less-bounce balls went into branch pipes off the main pipe while about 40% of the plastic balls did, and herefore the less-bounce ball is better for drainage flow examination.
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Noriaki SATO, Shigeru SATO, Kenichi TAGAMI, Tetuo HASHIMURA, Ikuhiro Y ...
Article type: Article
Session ID: B-22
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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3 years has been past from completion of Meiji Yasuda Seimei Building, number of tenant occupancy has been increased and stable cooling load is generated accordingly.This report contains the result of the data collection and analysis as a subsequent operation track record for followings; 1.Dynamic Type Ice Storage System - Carried out on Summer 2006 2.Free Cooling Operation by Cooling Tower - Carried out on Winter 2006
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Noriaki SATO, Shigeru SATO, Yasushi KAMIMURA, Masahiro IKEDA, Masaaki ...
Article type: Article
Session ID: B-23
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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With front information it utilized the cold water which is produced with level of control of anti-icing as the cold water for building slab storage. I am based on the third report by this report and collection of operative results data affecting building thermal mass storage for summer, 2006 period is to have analyzed it and reports the result.
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Noriaki SATO, Kenichi YASUDA, Hidetaka SEKINE, Tatsuo NOBE
Article type: Article
Session ID: B-24
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The heat source system by which the refrigerators are combined with a thermal storage system can save energy as high efficient employment of the refrigerator by optimal control of the amount of heat dissipation. We reported and considered the operation of the energy saving system introduced into the heat source equipment installed in the office building of a metropolitan area.
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Ken-ichiro TAKESHIMA, Kazunobu SAGARA, Toshio YAMANAKA, Hisashi KOTANI ...
Article type: Article
Session ID: B-25
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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It is difficult to know the peformance of air-conditioning system with thermal energy storage tanks because almost all systems do not have flowmeter. The aim of this research is to estimate the flow rate of such air-conditioning systems using temperature in tanks which is easy to measure. In this paper the effect of the number of temperature measuring points in tanks on the estimation accurancy was reported.
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Hiroyuki SASAO, Ryo OTA
Article type: Article
Session ID: B-26
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Necessity of HVAC simulation is rising because of new needs such as ESCO and HVAC Commissioning. Moreover, an ordinary operating scheme is not necessarily optimum for systems composed of equipments with peculiar characteristic like a inverter turbo chiller that appeared in recent years. In this reason we developed a simulation tool with a function to search for optimum operation conditions for heat source systems. In this report the outline of the simulation tool is introduced.
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Hiroyuki SASAO, Ryo OTA
Article type: Article
Session ID: B-27
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We developed a simulation tool for heat source systems that was able to calculate optimum operating conditions from a system configuration, an operation scheme, and a heat load condition. And its outline was described in the former report. In this paper the equipment model of a water-cooled chiller, a cooling tower, and a pump that are important to HVAC simulation is shown. In addition, application cases of the simulation are shown.
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Hiroshige KIKUCHI, Yuuji MIYAJIMA, Hiroyuki WATANABE, Noboru OSHIMA
Article type: Article
Session ID: B-28
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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We have developed Optimum Energy Saving System for HVAC. The earlier reports demonstrated that this system optimized control target values for indoor and outdoor air conditions, and operated HVAC system with minimum energy consumption. This study investigates a method for determining the optimum number of operating chillers in air-conditioning systems when applying the optimized control system. We found that the optimum number of operating chillers in the optimized control scheme is not necessarily the least number that covers the cooling load, and developed the method that determines it by conducting simulations varying the number of operating chillers.
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Yuta KOTAJIMA, Satoru KUNO, Masaya OKUMIYA, Teruyuki SAITO, Yoshihiko ...
Article type: Article
Session ID: B-29
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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A reduction in the amount of the C02 exhaust and the energy consumed can be expected by introducing a highly effective, electric chiller for the gas heat source system. This research verifies the introduction of a centrifugal chiller and "Stealth Turbo System" into the gas-fired absorption chiller-heater system and the effect is verified by simulation about installation. This reports the effect of the introduction of a typical case in an office building
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Kimiya MURAKAMI, Naoko KAWASHIMA, Hirokazu ENOMOTO
Article type: Article
Session ID: B-30
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Cogeneration is a system which supplies electricity and heat simultaneously. However, supplying different energy called electric power and heat makes proper evaluation of the efficiency of cogeneration difficult. Therefore, in the first paper, after arranging the range for evaluation and its evaluation case of cogeneration, the examination subject of an efficiency index was arranged according to four evaluation cases.
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Kimiya MURAKAMI, Naoko KAWASHIMA, Hirokazu ENOMOTO
Article type: Article
Session ID: B-31
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Total power and heat efficiency is one of the efficiency indices of cogeneration. However, in the numerator of this index, it is pointed out that it is not suitable to add electric power and heat simply. Therefore, the evaluation index which carries out equivalent conversion of the heat energy to the electrical energy is proposed. In the second paper, while proposingTotal power and heat efficiency equivalent to power output as the evaluation index, the trial calculation was made.
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Kimiya MURAKAMI, Naoko KAWASHIMA, Hirokazu ENOMOTO
Article type: Article
Session ID: B-32
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In order to calculate the efficiency of a heat source system in which the waste heat and electric power from a cogeneration unit are utilized, it is necessary to convert waste heat and electric power into primary energy like the commercial electric power and the town gas which are inputted into a heat source system. In this paper, the method of distributing the input fuel to CGU to an equivalent for electric power and an equivalent for waste heat was studied.
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Hidetaka KASAHARA, Ryuji YANAGIHARA
Article type: Article
Session ID: B-33
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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There is controversy as to the evaluation index and standards of total energy efficiency of cogeneration system. In this study, we made a sensitivity analysis of the equivalent total generation efficiency, which are proposed as the evaluation index of total energy efficiency of cogeneration system, and we examined its evaluation standards on the basis of trend of generation efficiency of electric power companies.
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Ryuichiro GOTO, Hidetoshi TAGOMORI, Yasuhiro HAMADA, Fumitoshi YOSHIMU ...
Article type: Article
Session ID: B-34
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study aims to find the optimum utilization of fuel cell cogeneration system through the simulation program in cold regions. In order to verify the availability of power and hot water supply system that uses the fuel cell cogeneration, we compare it with various conventional systems.
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Mitsuru NAKAMURA, Yasuhiro HAMADA, Fumitoshi YOSHIMURA, Hidetoshi TAGO ...
Article type: Article
Session ID: B-35
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This report describes numerical analysis and the field experiments in the experimental house concerning low temperature water heating and the heating utilizing exhaust heat of fuel cells (PEFC). Firstly, the possibility of low temperature hot water heating is shown. Secondly, relation between outside air temperature, heating water supply temperature and indoor temperature is indicated.
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Hidetoshi TAGOMORI, Yasuhiro HAMADA, Fumitoshi YOSHIMURA, Katsunori NA ...
Article type: Article
Session ID: B-36
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study aims to find the optimum utilization of fuel cell cogeneration system including space heating through the simulation program in cold regions. In order to verify the availability of power, hot water and heating supply system that uses fuel cell cogeneration, we compare it with various conventional systems.
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Yasuhiro HAMADA, Fumitoshi YOSHIMURA, Hidetoshi TAGOMORI, Katsunori NA ...
Article type: Article
Session ID: B-37
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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This study aims to examine possibility of efficient utilization of exhaust heat from fuel cells (PEFC) in summer. The numerical simulation and the demonstration experiment are conducted concerning residential hybrid fuel-cell cogeneration systems in consideration of utilization of exhaust heat from fuel cells for cooling, the contributing ratio of fuel cells for electricity demand and the effect of energy conservation are evaluated.
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Fumitoshi YOSHIMURA, Yasuhiro HAMADA, Hidetoshi TAGOMORI, Katsunori NA ...
Article type: Article
Session ID: B-38
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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In this report, the numerical simulation on the optimum utilization of residential hybrid cogeneration systems utilizing fuel cells is carried out. The optimum operation situation in the system and the effect of the energy consumption reduction are evinced. Additionally, the similar simulation is conducted that utilizing highly capable fuel cells at present stage, the energy conservation of the advanced system is evaluated.
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Yasuo KUWASAWA, Hisashi MIURA, Hiromi HABARA, Takao SAWACHI
Article type: Article
Session ID: B-39
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Big energy conservation is expected of the fuel cell. However, the performance of the fuel cell depends on the daily demand of the hot water and electricity used by residents. Therefore, it is necessary to clarify the actual performance under various demand of the hot water and electricity as well as to clarify the rated performance under a defined condition. In this paper, the design of the experiment to measure the system efficiency by setting up the fuel cell in an experimental multiple dwelling house and the time series data by the experiment are reported.
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Hisashi MIURA, Yasuo KUWASAWA, Hiromi HABARA, Takao SAWACHI
Article type: Article
Session ID: B-40
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Part2 shows the daily integrated / average data such as power generation efficiency, heat recovery efficiency and reduced primary energy of fuel cell which was calculated from the detail data shown in Part 1. The experimental results of reduced primary energy rate was from 11 % to 30 % under the given electric power and hot water demand variation, and it was shown that reduced primary energy depends on the amount of the supply heat energy from fuel cell unit.
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Shin-ichi AKABAYASHI, Jun SAKAGUCHI, Yohei ISHIYAMA
Article type: Article
Session ID: B-41
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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The purpose of this study is to analyze the effectiveness of gas co-generation system based on the field survey results of energy consumption in houses. The rate of hot-water supply from gas co-generation system is 86%, and 22% of electrical power is supplied from gas engine. The dispersion of the ratio of hot-water supply from co-generation system is large even if the hot-water consumption is the same level.
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Kosuke KOBAYASHI, Takaya ISEKI
Article type: Article
Session ID: B-42
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Tokyo Gas has commercialized 1kW-class PEFC residential Co-generation systems. As of 30^<th> March 2007, 310 PEFC Co-generation systems have been already used in actual households by Tokyo Gas's FC partnership customers. This paper explains how the systems work and summarized the annual performance of 117 systems which have been operated for more than a year in Tokyo area. It is found that PEFC Co-generation system can reduce primary energy consumption of households by not only high performances of PEFC with itself but also operation control algorithm called "Tokyo Gas Intelligent Control".
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Reiichi NOZASA, Yoshiyuki KAMIYA
Article type: Article
Session ID: B-43
Published: August 24, 2007
Released on J-STAGE: August 31, 2017
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Three leaves type baffle plate attached at the inlet of the sub-chamber of the temporary ice storage tank and new method of drawing ice/water mixture from the temporary ice storage tank by shaving ice mass were proposed and their performances were examined in this paper. Under examined conditions, proposed baffle plate prevents inflow of ice to the sub-chamber of the temporary ice storage tank and does not interfere drawing ice from the temporary ice storage tank. IPF of drawing ice /water mixture increased with the increase of rotational speed of shaving board and decrease drastically with the decrease of ice mass remained in the temporary ice storage tank. Furthermore power of motor driving shaving board is larger than that rotating ice mass of the previous method, but total power to draw ice/water mixture consumed in the proposed method is less than that in the previous method.
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