Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan

[title in Japanese]

Article type: Cover
2011 Volume 36 Issue 167 Pages Cover1-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_Cover1

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[title in Japanese]

Article type: Cover
2011 Volume 36 Issue 167 Pages Cover2-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_Cover2

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[title in Japanese]

Article type: Index
2011 Volume 36 Issue 167 Pages Toc1-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_Toc1

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[title in Japanese]

Article type: Appendix
2011 Volume 36 Issue 167 Pages App1-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_App1

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[title in Japanese]

Article type: Appendix
2011 Volume 36 Issue 167 Pages App2-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_App2

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[title in Japanese]

Article type: Appendix
2011 Volume 36 Issue 167 Pages App3-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_App3

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[title in Japanese]

Article type: Appendix
2011 Volume 36 Issue 167 Pages App4-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_App4

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[title in Japanese]

Article type: Appendix
2011 Volume 36 Issue 167 Pages App5-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_App5

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Thermal Characteristics of Heat Storage Concrete Using Mat Foundation of Solar House

Minori MORIYAMA, Yasuhiro NAKAMURA, Makoto KOGANEI, Tomonobu GOTO

Article type: Article
2011 Volume 36 Issue 167 Pages 1-10
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_1

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This study aims to clarity the thermal characteristics of the heat storage concrete using mat foundation of solar house based on the measurement survey through a year and the three dimensional unsteady heat conduction numerical analysis considering heat exchange between the concrete and the soil. The characteristics of the room air temperature under several operation modes of the solar system controlled by the room air temperature, the outdoor air temperature and the temperature in the ridge duct were clarified based on the measurement survey. It was clarified by the numerical simulation that the consideration of the heat exchange between the concrete and the soil was important to know the heat exchange characteristics of the heat storage concrete and the most of the cold supply heat from the concrete to the room was originally from the soil. It was also clarified that the heat quantity less than a half of the whole heat quantity stored in the concrete contributed to heating of the room and the remainder moved to soil during heating season. Moreover, several interesting findings were obtained about the relationship between the heating and cooling performance of the heat storage concrete and the thickness of the concrete/the existence of the thermal insulation under the concrete.

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Study on Outside Air Cooling System in Data Processing Facility for Information Technology : Part 1-Experimental Study on Electric Power Saving with Outside Air Usage Variance

Makoto KOGANEI, Iwao YAMAGUCHI, Tomonobu GOTO, Katsusuke MIYAKE, Masat ...

Article type: Article
2011 Volume 36 Issue 167 Pages 11-19
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_11

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The purpose of this study is to clarify the energy performance of the outdoor air cooling system in data processing facility using a real size server room. The cooling load of the packaged air conditioners, the overall energy consumption and COP of the system have been clarified experimentally under various conditions of outdoor air ratio, outdoor air temperature and the heat generated by data-com equipment. The results show the cooling load of the air conditioners could be approximately 90 percent less than that of the conventional air-conditioning system for server rooms and the overall energy consumption and COP have been increased by 18 percent maximum and 24 percent maximum respectively compared to those of the conventional system under the maximum heat load conditions.

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Verification of Optimum Operation Method by Simulation for the HVAC System with a Thermal Storage Tank in an Actual Building

Hiromasa YAMAGUCHI, Harunori YOSHIDA, Naomiki MATSUSHITA, Hisataka KIT ...

Article type: Article
2011 Volume 36 Issue 167 Pages 21-29
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_21

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An optimum operation scheme was applied to the thermal storage system of an actual building and evaluated using measurement data. First, each HVAC component model is developed using the performance curve obtained from manufacturers. And the model is refined by a calibration coefficient, which minimizes the difference between the measured data and simulated data. Second, these models are connected to compose the whole HVAC system. And the accuracy of the system simulation of the HVAC system was verified. The simulation error of the total energy consumption was 0.6% on average, and the root mean square error (RMSE) was 4.9kWh, which indicates that the simulation is sufficiently accurate for estimating the performance of the HVAC system. Finally, the effect of optimum operation was verified by measurement data. The coefficient of performance (COP) of the heat source system was improved by 3.5% and the COP of the entire system was improved by approximately 10.9% with optimum operation.

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Risk Avoidance Method of Building Environment & Facilities in Maintenance Phase

Takehiro TANAKA, Shisei WARAGAI, Kazuyoshi WATANABE

Article type: Article
2011 Volume 36 Issue 167 Pages 31-39
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_31

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This paper reported on Risk Avoidance Method of Building Environment & Facilities in Maintenance Phase. In this paper, first it shown the evaluation technique for the problem/risk avoidance, the evaluation process for the risk management, and the quantification of the risk. Next it presented the quantification technique of the problem/risk. And the evaluation was performed by the following procedure: 1) For each type of facility, identify phenomena that could lead to a loss in office functions 2) Identify the threats that generate loss-causing phenomena 3) Evaluate the frequency of occurrence of each threat and the impact on office functions when such a threat occurs. 4) Create a risk score map for each phenomenon that leads to loss. The results of a trial performed with building designers and experienced building maintenance and management personnel produced a score map reflecting experience with past accidents and the frequency of claims.

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[title in Japanese]

Article type: Cover
2011 Volume 36 Issue 167 Pages Cover3-
Published: February 05, 2011
Released on J-STAGE: September 05, 2017

DOIhttps://doi.org/10.18948/shase.36.167_Cover3

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