+高级检索
多种局部供冷方式下人体热反应特性
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:


Human Thermal Responses with Various Local Cooling Methods
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    研究了热湿环境中不同局部供冷方式(辐射、传导、对流)下人体热反应特性. 通过在热湿室内环境的试验房间内试验,收集人体主观反应数据,分析不同局部供冷方式对人体局部与整体产生的舒适效果差异. 试验结果表明,在热湿环境中不同局部供冷方式作用下受试者达到稳定状态所需时间不同,局部对流供冷小于5 min、局部传导供冷10 min、局部辐射供冷20 min后受试者可达到稳定. 对照组中对整体热反应影响程度较大的身体部位为颈部、大腿、背部;而在不同局部供冷作用下,对整体热反应影响最大的部位发生变化,变为被直接冷却的身体部位,分别为上臂(辐射)、前臂(传导)及头部(对流). 根据热舒适投票值进行回归分析,环境温度低于27.55 ℃时,局部辐射供冷方式最优;27.55~28.96 ℃时,局部对流供冷方式最优;高于28.96 ℃时,局部传导供冷方式最优.

    Abstract:

    This paper studies the thermal responses of human subjects with different local cooling methods (radiation,conduction and convection) in hot-humid environments. Through experiments in the hot-humid environments in the experimental room,the data of subjective feelings were collected and the different effects generated by different local cooling methods on the local and overall thermal comfort were then analyzed. The obtained results showed that the time before subjects reached static-state condition differed with different local cooling: the time was less than 5 minutes with local convective cooling; the time was 10 minutes with conductive cooling and 20 minutes with local radiant cooling. In the reference condition,necks,legs and backs exerted large effects on overall subjective responses. When local cooling was applied,the local body parts which exerted large effects were those which were locally cooled directly,like upper-arms (local radiation),lower-arms (local conduction) and heads (local convection). Moreover,according to the regression results of the thermal comfort vote at 26/28/30 ℃,it is the best to choose local radiant cooling when the ambient temperature is lower than 27.55 ℃,local convective cooling with the ambient temperature at 27.55-28.96 ℃,and local conductive cooling with the ambient temperature higher than 28.96 ℃,respectively.

    参考文献
    相似文献
    引证文献
文章指标
  • PDF下载次数:
  • HTML阅读次数:
  • 摘要点击次数:
  • 引用次数:
引用本文

李念平,李娜,何颖东,何梅玲,李甲,颜金波,谭畅.多种局部供冷方式下人体热反应特性[J].湖南大学学报:自然科学版,2020,47(3):140~148

复制
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-03-17
  • 出版日期:
作者稿件一经被我刊录用,如无特别声明,即视作同意授予我刊论文整体的全部复制传播的权利,包括但不限于复制权、发行权、信息网络传播权、广播权、表演权、翻译权、汇编权、改编权等著作使用权转让给我刊,我刊有权根据工作需要,允许合作的数据库、新媒体平台及其他数字平台进行数字传播和国际传播等。特此声明。
关闭