Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan
Online ISSN : 2424-0486
Print ISSN : 0385-275X
ISSN-L : 0385-275X
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Volume 37, Issue 182
Displaying 1-16 of 16 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    2012 Volume 37 Issue 182 Pages Cover1-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_Cover1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    2012 Volume 37 Issue 182 Pages Cover2-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_Cover2
    JOURNAL FREE ACCESS
    Download PDF (9665K)
  • [title in Japanese]
    Article type: Index
    2012 Volume 37 Issue 182 Pages Toc1-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_Toc1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App1-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App1
    JOURNAL FREE ACCESS
    Download PDF (66K)
  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App2-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App2
    JOURNAL FREE ACCESS
    Download PDF (66K)
  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App3-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App3
    JOURNAL FREE ACCESS
    Download PDF (66K)
  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App4-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App4
    JOURNAL FREE ACCESS
    Download PDF (66K)
  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App5-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App5
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  • Study of Sterilization System using Ozone Gas for Aseptic Environments in Bio-cleanrooms
    Takuji IWAMURA, Katsunori NAGANO, Toshihiro NOGAMI, Hideharu SHINTANI, ...
    Article type: Article
    2012 Volume 37 Issue 182 Pages 1-8
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_1
    JOURNAL FREE ACCESS
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    An advanced sterilized environment is required in bio-cleanrooms for aseptic preparation. Until now, formaldehyde gas sterilization has been used for sterilizing a bio-cleanroom; however, owing to the residual problems associated with formaoldehyde, substitute sterilization methods are required. The fumigation system using ozone gas is a substitute sterilization method and has some advantages such as concentration control of ozone gas by its measument and easy decomposition of ozone gas to oxygen using a catalyst. In this study, the characteristics of ozone gas are examined and the sterilizing effect of ozone gas on floating fungus and adherent bacteria in bio-cleanrooms and the effectiveness of the fumigation system are analyzed.
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  • Study on Improvement of Air Quality in Smoking Area of Restaurants : Part 1-CFD Simulation of Combined System of Local Ventilation and Displacement Ventilation in Smoking Area of Restaurants
    Yasushi KONDO, Shin-ya UEMURA, Minku KIM
    Article type: Article
    2012 Volume 37 Issue 182 Pages 9-16
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_9
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    In smoking areas of restaurants, smokers and nonsmokers are often seated at the same table. Under such conditions, nonsmokers are exposed to environmental tobacco smoke. In this research, a ventilation system is studied to reduce a nonsmoker's exposure to environmental tobacco smoke in restaurants by performing CFD simulation and experiments. Several kinds of ventilation systems were modeled, and the distribution of the concentration of particulate materials was studied. Part one of this research presents the results of CFD simulation. The CFD results show that a displacement ventilation system can improve indoor air quality more than a mixing ventilation system; however, the concentration of particulate matter is not maintained within the allowable level. On the other hand, a combined system of local ventilation and displacement ventilation is expected to provide good indoor air quality. In addition, moderate ventilation rate and air transfer from the nonsmoking area to the smoking area were examined to improve the air quality in the smoking area.
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  • Simulation of Solar-Thermal-Assisted Air-Conditioning System in Office Building using LCEM Tool
    Takuya SHINODA, Makiko UKAI, Kazuyuki KATO, Hideki TANAKA, Mika YOSHIN ...
    Article type: Article
    2012 Volume 37 Issue 182 Pages 17-26
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_17
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    This study focuses on the performance prediction of a solar-thermal-assisted air-conditioning system for office buildings. The LCEM(Life Cycle Energy Management) tool was used for performance prediction. The LCEM tool was developed to study an HVAC system of a building. In this study, new components of a collector and an absorption machine were developed. The mathematical description and input/output parameters of both components were described in detail. The results of the field measurements and the calculations were compared and the accuracy was discussed. It can be concluded that the simulation models developed in the study can be used for performance prediction of solar-assisted HVAC systems with sufficient accuracy.
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  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App6-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App6
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  • Aerosol Transport in Vertical Ventilation Duct : Part 2-Numerical Prediction of Aerosol Transport in Vertical Duct with Lagrangian Particle Tracking Method
    Nguyen Lu PHUONG, Kazuhide ITO, Shigeki ONISHI, Shin-ichiro ARAMAKI
    Article type: Article
    2012 Volume 37 Issue 182 Pages 27-35
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_27
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    In order to prevent contamination of particulate matter in indoor environments, it is important to control the transmission of particles from outdoors to indoors through ventilators. Toward this end, this study aims to reduce the amount of entrained particles passing through a ventilation system. A Computational Fluid Dynamics (CFD) technique and a Lagrangian particle tracking approach are used to predict the properties of flow fields and particle transportation from outdoor to indoor environments in a vertical ventilation duct under various boundary conditions. In this paper, we present the results of sensitivity analysis in terms of changes in particle diameters, particle densities, and temperature gradients; the results were confirmed to hold within the valid range of the given boundary conditions. Through the numerical predictions, the particle motions in the ventilator were confirmed to depend on particle sizes, particle densities, and air stream conditions. A majority of large particles with particle diameters (d_p) ranging from 80 to 100 μm were strongly affected by gravitational settling and transported along a different air path stream. Particles with sizes ranging (d_p) from 10 to 50 μm tended to follow a streamline of carrier air flow and were transported toward the exhaust opening located in the upper part of the duct. The numerical results showed that the removal efficiency or retaining fraction of the vertical duct increased as the particle diameter and particle density increased. Wall boundary conditions were found to an important role in enhancing the retaining fraction of the vertical duct.
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  • Thermal Performance Evaluation of Combinations of Double-Skin Facade Components : Comparative Measurement in an Actual Building
    Kazuyoshi HARIMOTO, Takuya TANAKA, Hitoshi TAKEDA
    Article type: Article
    2012 Volume 37 Issue 182 Pages 37-42
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_37
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    The thermal performances of a double-skin facade and airflow window system are improved by the thermal insulation properties and solar radiation characteristics of glass and Venetian blinds in addition to exhaust heat mechanism resulting from airflow. In this paper, we report the measurement test that analyzes the effect of characteristics of glass and blinds on the thermal performance of a double-skin facade. On the floor of actual building, comparative measurements of heat transmission coefficient and Solar Heat Gain Coefficient are carried out on each double-skin unit, in which the thermal insulation properties of glass and optical characteristics of Venetian blinds are varied. The measurement results show that adopting low-E pair glass to inner glass and adopting the high reflection ratio glass to outer glass affect on improvement of thermal performance of double skin systems.
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  • [title in Japanese]
    Article type: Appendix
    2012 Volume 37 Issue 182 Pages App7-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_App7
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    2012 Volume 37 Issue 182 Pages Cover3-
    Published: May 05, 2012
    Released on J-STAGE: September 05, 2017
    DOIhttps://doi.org/10.18948/shase.37.182_Cover3
    JOURNAL FREE ACCESS
    Download PDF (6K)
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