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On the measurement of the mean radiant temperature and its influence on the indoor thermal environment assessment

机译：平均辐射温度的测量及其对室内热环境评估的影响

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摘要

The mean radiant temperature is one of the six main variables responsible for the thermal sensation of the man exposed in a particular thermal environment (indoor and outdoor). Its measurement is not direct and is usually carried out by means of different methodologies and instruments whose general details and accuracy requirements are reported in the ISO Standard 7726. This paper deals with a critical review on the typical measurement methodologies combined with a comparative analysis of the metrological performances exhibited by the more common practice instruments on the market. To this purpose a special room-test has been designed aiming to reproduce the typical microclimatic conditions can be encountered in workplaces both in summer and in winter conditions. The effect of the measurement methodology and used instruments on the thermal comfort (global and local) and the thermal stress assessment has been finally discussed. Obtained results show that the use of different instruments consistent with ISO Standard 7726 requirements results in values of the mean radiant temperature compatible with each other, but the consequences on thermal environment assessment appear often ambiguous. Obtained results have focused the need for starting an in-depth discussion on the measurements' protocols and the instruments leading to a possible reduction of the required accuracy levels reported in the ISO Standard 7726.
机译：平均辐射温度是负责暴露在特定热环境（室内和室外）中的人的热感觉的六个主要变量之一。它的测量不是直接的，通常是通过不同的方法和手段来进行的，这些方法和手段的一般细节和准确性要求已在ISO标准7726中进行了报告。本文对典型的测量方法进行了严格的审查，同时对方法进行了比较分析。市场上更常见的实践仪器所展现的计量性能。为此目的，已经设计了特殊的室内测试，旨在再现夏季和冬季条件下工作场所可能遇到的典型微气候条件。最后讨论了测量方法和所用仪器对热舒适度（整体和局部）和热应力评估的影响。获得的结果表明，使用与ISO标准7726要求一致的不同仪器会导致彼此的平均辐射温度值兼容，但是对热环境评估的影响似乎常常是模棱两可的。获得的结果集中了对测量协议和仪器进行深入讨论的必要性，从而可能降低ISO标准7726中报告的所需精度水平。

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  • 来源
    《Building and Environment》 |2013年第5期|79-88|共10页
  • 作者

    Francesca Romana dAmbrosio Alfano; Marco DellIsola; Boris Igor Palella; Giuseppe Riccio; Aldo Russi;

  • 作者单位

    DIIN - Dipartimento di Ingegneria Industrial, Universitd di Salerno, Via Ponte Don Melillo, 84084 Fisciano (Salerno), Italy;

    Dipartimento di Ingegneria Civile e Meccanica, Universitd degli Studi di Cassino e del Lazio Meridionale, Via Cuglielmo Marconi 10, 03043 Cassino, Italy;

    DETEC - Dipartimento di Energetica, Termofluidodinamica Applicata e Condizionamenti Ambientali, Universitd degli Studi di Napoli Federico II,Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;

    DETEC - Dipartimento di Energetica, Termofluidodinamica Applicata e Condizionamenti Ambientali, Universitd degli Studi di Napoli Federico II,Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;

    Dipartimento di Ingegneria Civile e Meccanica, Universitd degli Studi di Cassino e del Lazio Meridionale, Via Cuglielmo Marconi 10, 03043 Cassino, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    mean radiant temperature; thermal comfort; thermal stress; PMV; PHS;

    机译：平均辐射温度;热舒适度;热应力;PMV;PHS;

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