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Acceptance of thermal conditions and energy use of three ventilation strategies with six exhaust configurations for the classroom

机译：接受三种通风策略和教室六种排气配置的热工条件和能源使用

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摘要

The paper describes an experimental study from forty-eight subjects about the acceptable thermal conditions under three ventilation strategies with six exhaust configurations, including mixing ventilation (MV), displacement ventilation (DV), and four exhaust types of stratum ventilation (ceiling-level-exhausted "SV', rear-low-level-exhausted "SV-1", front-low-level-exhausted "SV-2" & rear-middle-level-exhausted "SV-3") serving a confined 8.8 m x 5.1 m x 2.4 m (h) classroom. Tests were carried out in a specially constructed test chamber designed to represent a typical small-medium sized classroom in Hong Kong. Thermal comfort analyses were carried out under specific supply flow rates, room temperatures, and air speeds in three ventilation strategies with six exhaust configurations. From the collected data, SV at 26 degrees C & 10 ACH and SV-3 at 28 degrees C & 15 ACH are achieved 100% of acceptable vote, the highest percentage of 97.3%, scoring neutral (0), are under the SV-3 at 28 degrees C & 10 ACH. The thermal satisfaction acceptance percentage in stratum ventilation strategies can be improved by increasing the air flow supply from 10 to 15 ACH at the elevated indoor condition of 26.8 degrees C, 273 degrees C and 26.4 degrees C by SV, SV-1 and SV-3 respectively, but not under MV, DV and SV-2. It implies that the thermal comfort will be affected no only by the temperature and air supply flow, but also by difference ventilation strategies in this study of three ventilation strategies with six exhaust configurations. This result indicates that SV-3 can satisfy human perception of comfort with least value of energy consumption, due to higher neutral temperature in comparison with the other ventilation strategies. (C) 2015 Elsevier Ltd. All rights reserved.
机译：本文描述了一项来自48位受试者的实验研究，研究了三种通风策略以及六种排气配置（包括混合通风（MV），置换通风（DV）和四种排气类型的地层通风）的可接受的热工况（最高水平用完了“ SV”，后排低位排气的“ SV-1”，前排低位排气的“ SV-2”和后排中位排气的“ SV-3”），服务空间为8.8 mx 5.1 mx 2.4 m（h）教室。测试在专门设计的测试室中进行，该测试室旨在代表香港典型的中小型教室，并在特定的供气流量，室温和空气速度下进行热舒适性分析三种通风策略和六种排气配置，从收集的数据来看，在26摄氏度和10 ACH下的SV和在28摄氏度和15 ACH下的SV-3达到了100％的可接受投票率，最高百分比为97.3％，得分为中（0），在SV-3下处于28度ee C和10 ACH。可以通过在SV，SV-1和SV-3升高的室内温度26.8摄氏度，273摄氏度和26.4摄氏度的室内条件下将气流供应从10 ACH增加到15 ACH，来提高地层通风策略中的热满意度接受百分比分别，但不适用于MV，DV和SV-2。这意味着在研究具有六个排气结构的三种通风策略时，热舒适性不仅会受到温度和空气供应流量的影响，还会受到不同通风策略的影响。该结果表明，与其他通风策略相比，由于较高的中性温度，SV-3可以满足人类对舒适度的感知，并且能耗最低。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2015年第2期|606-619|共14页
  • 作者

    Fong M. L.; Hanby Vic; Greenough Rick; Lin Z.; Cheng Y.;

  • 作者单位

    City Univ Hong Kong, Div Bldg Sci & Technol, Bldg Energy & Environm Technol Res Unit, Hong Kong, Hong Kong, Peoples R China|De Montfort Univ, Fac Technol, Inst Energy & Sustainable Dev, Leicester LE1 9BH, Leics, England;

    Univ Loughborough, Sch Civil & Bldg Engn, Loughborough, Leics, England;

    De Montfort Univ, Fac Technol, Inst Energy & Sustainable Dev, Leicester LE1 9BH, Leics, England;

    City Univ Hong Kong, Div Bldg Sci & Technol, Bldg Energy & Environm Technol Res Unit, Hong Kong, Hong Kong, Peoples R China;

    City Univ Hong Kong, Div Bldg Sci & Technol, Bldg Energy & Environm Technol Res Unit, Hong Kong, Hong Kong, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Acceptance; Neutral temperature; Energy; Ventilation strategies;

    机译：验收;中性温度;能量;通风策略;

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