指向型熱輻射裝置對(duì)室內(nèi)人員熱舒適影響的實(shí)驗(yàn)與仿真研究

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中圖分類號(hào)：TU832.1 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1673-3851（2025）07-0541-15

引用格式：，等．指向型熱輻射裝置對(duì)室內(nèi)人員熱舒適影響的實(shí)驗(yàn)與仿真研究[J」．浙江理工大學(xué)學(xué)報(bào)（自然科學(xué)），2025，53（4）：541-555.

Abstract：To clarify the improvement of thermal comfort of occupants under the influence of directional heat radiation （DHR） device in a slightly cold environment，and to explore the most effective seting conditions，first，an experimental study on human thermal comfort under the DHR device's active intervention of the local thermal environment was conducted，and the improvement of local thermal comfort，thermal sensation and whole-body thermal comfort were obtained. Then，the differences in the overallindoor thermal environment and the local thermal environment near the human body under different seting conditions were compared and analyzed through computational fluid dynamics （CFD） software，and the most efective setting conditions and the distribution law of thermal comfort indexes such as PMV-PPD under this condition were obtained. According to the results of the human thermal comfort experiment， when the DHR device was vertically oriented in a slightly cool environment，within a 3O-minute operation time，the average thermal sensation of the occupants changed from -0.4 to -0.6 ，which was better than the change from -0.4 to -1.6 without the device. This configuration significantly mitigated the declining trend in human thermal comfort. According to the simulation results，the most effective setting condition of the device was a surface temperature of 40°C for the radiant pipe，a pipe diameter of DN32，a pipe spacing of 15cm ， and a distance of 85cm . Under this condition，the equivalent temperature of the thermal environment around the human body was about 21°C ，the PMV value was between -0.5 and 0.5，and the PPD value was about 5% . Results show that deploying the DHR device in a slightly cool environment can improve the thermal environment around the human body，and can significantly improve the local sensation and overall thermal comfort of occupants by raising the average radiative temperature and equivalent temperature. The research could provide new ideas for the improvement of the thermal environment occupants' local and thermal comfort.

Key words：directional heat radiation； thermal comfort；local thermal environment；computational fluid dynamics; PMV-PPD

0引言

輻射供暖是冬季常用的一種供暖方式，現(xiàn)有輻射供暖方式主要包括輻射地板、熱輻射板、人體局部輻射加熱器等[1-3]。（剩余17139字）