材料科學(xué)與工程 材料物理與化學(xué)，外文文獻翻譯及原文

The effect of air velocity on thermal comfort at moderate activity levels

空氣流動速度對中等活動水平人體熱舒適的影響

ABSTRACT
The primary purpose of this study was to determine if the thermal comfort of subjects workingat a moderate level of activity (2.3 MET)was improved or adversely affected by air motion.second purpose of the study was to compareexperimental results with the predicted responsesgiven by the Fanger thermal comfort model and the Azer thermal response model. Tests wereconducted with subjects wearing 0.65 clo and 1.09 clo of clothing insulation and with relativeair velocities of approximately 40 fpm (0.20 m/s) and 240 fpm (1.2 m/s). The air temperaturewas varied over a range selected to include the optimumcomfort level. The results indicatethat comfort is as good, if not better, with the higher air velocity. The experimentalresults showeda higher sensitivity to temperature than predicted by either model.

摘要：本文研究了當活動強度達到中等水平（2.3MET）時空氣流動速度是否能對人體的熱舒適度產(chǎn)生影響，并將測試結(jié)果與Fanger熱舒適模型和Azer熱感受模型的預(yù)測結(jié)果進行比較。實驗中，受試者的著衣的保溫系數(shù)為0.65~1.09，空氣流動速度為40fpm（0.20m/s）~240fpm（1.20m/s），空氣溫度保持在舒適水平范圍內(nèi)。測試結(jié)果表明：提高空氣流動速度，可以提高或保持舒適度；溫度對于熱舒適度的影響程度遠大于預(yù)測模型估計程度。