Looking for simple correction functions between the mean radiant temperature from the “standard black globe” and the “six-directional” techniques in Taiwan

Noémi Kántor, Attila Kovács, Tzu Ping Lin

研究成果: Article同行評審

31 引文 斯高帕斯(Scopus)

摘要

Mean radiant temperature (Tmrt) values were calculated and compared to each other in Taiwan based on the six-directional and globe techniques. In the case of the six-directional technique (measurements with pyranometers and pyrgeometers), two different Tmrt values were calculated: one representing the radiation load on a standing man [Tmrt(st)] and the other which refers to a spherical reference shape [Tmrt(sp)]. Moreover, Tmrt(Tg) was obtained through the globe thermometer technique applying the standard black globe. Comparing Tmrt values based on the six-directional technique but with different reference shapes revealed that the difference was always in the +/−5 °C domain. Of the cases, 75 % fell into the +/−5 °C Delta Tmrt range when we compared different techniques with similar reference shapes [Tmrt(sp) and Tmrt(Tg)] and only 69 % when we compared the different techniques with different reference shapes [Tmrt(st) and Tmrt(Tg)]. Based on easily accessible factors, simple correction functions were determined to make the Tmrt(Tg) values of already existing outdoor thermal comfort databases comparable with other databases which involve sixdirectional Tmrt. The corrections were conducted directly between the Tmrt(Tg) and Tmrt(sp) values and also indirectly, i.e., by using the values of Tg to reduce the differences between Tmrt(sp) and Tmrt(Tg). Both correction methods resulted in considerable improvement and reduced the differences between the Tmrt(sp) and the Tmrt(Tg) values. However, validations with an independent database from Hungary revealed that it is not suggested to apply the correction functions under totally different background climate conditions.

原文English
頁(從 - 到)99-111
頁數13
期刊Theoretical and Applied Climatology
121
發行號1-2
DOIs
出版狀態Published - 2015 7月 20

All Science Journal Classification (ASJC) codes

  • 大氣科學

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