材料科學(xué)與工程 材料物理與化學(xué)，外文文獻(xiàn)翻譯及原文

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

空氣流動(dòng)速度對(duì)中等活動(dòng)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(dāng)活動(dòng)強(qiáng)度達(dá)到中等水平（2.3MET）時(shí)空氣流動(dòng)速度是否能對(duì)人體的熱舒適度產(chǎn)生影響，并將測(cè)試結(jié)果與Fanger熱舒適模型和Azer熱感受模型的預(yù)測(cè)結(jié)果進(jìn)行比較。實(shí)驗(yàn)中，受試者的著衣的保溫系數(shù)為0.65~1.09，空氣流動(dòng)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(cè)試結(jié)果表明：提高空氣流動(dòng)速度，可以提高或保持舒適度；溫度對(duì)于熱舒適度的影響程度遠(yuǎn)大于預(yù)測(cè)模型估計(jì)程度。