毛细管网供冷座椅样件的供冷性能分析  

Analysis on Cooling Performance of Capillary Mesh Cooling Seat Samples

作　　者：张伟 涂敏 陈伟 岑伟州 ZHANG Wei;TU Min;CHEN Wei;CEN Weizhou(School of Civil Engineering,Nanhua University;Key Laboratory of"Prefabricated Building Energy Saving Technology"in Hunan Province;Shanghai Nuclear Energy Equipment Testing and Verification Center)

机构地区：[1]南华大学土木工程学院 [2]湖南省“装配式建筑节能技术”重点实验室 [3]上海核能装备测试验证中心

出　　处：《上海节能》2024年第7期1105-1115,共11页Shanghai Energy Saving

基　　金：国家自然科学基金青年基金(51708272)。

摘　　要：针对现有车辆空调在长时间乘坐,温度较高时,乘员后背以及臀部区域存在强烈灼热感,引发人的不适问题,研究设计了一种在坐垫内嵌入毛细管网供冷末端,基于坐垫表面与人体间的温差进行的导热交换,来改善坐垫表面温度。通过对该坐垫进行正交设计实验,研究了不同参数下其供冷性能的变化。研究结果表明,坐垫的供冷量最大可达到49.89 W/m2,单位面积供冷量与室内温度与供回水平均温度温差呈良好的线性关系,可以根据线性拟合结果来对坐垫的供冷量进行预估分析。供水温度和室内温度对供冷性能有显著影响,相对湿度基本不影响供冷性能。坐垫表面的最低温度与平均温度最大差值为1.4℃,其他温差在0.6℃,且表面温度均会高于露点温度,不易出现结露现象。In response to the strong burning sensation in the back and hip areas experienced by passengers during prolonged sitting and high temperatures from existing vehicle air conditioning systems,which can cause discomfort,a research and design has been conducted to embed a capillary mesh cooling end in the seat cushion.Based on the temperature difference between the seat cushion surface and the human body,thermal exchange is carried out to improve the surface temperature of the seat cushion.By conducting orthogonal design experiments on the seat cushion,the changes in its cooling performance under different parameters were studied.The research results indicate that the cooling capacity of the seat cushion can reach up to 49.89 W/m2,and there is a good linear relationship between the cooling capacity per unit area and the average temperature difference between the indoor temperature and the supply and return level.The cooling capacity of the seat cushion can be estimated and analyzed based on the linear fitting results.The water supply temperature and indoor temperature have a significant impact on the cooling performance,while relative humidity has little effect on the cooling performance.The maximum difference between the minimum temperature and the average temperature on the surface of the seat cushion is 1.4℃,while other temperature differences are 0.6℃.Moreover,the surface temperature remains higher than the dew point temperature,thus reducing the likelihood of condensation.

关 键 词：毛细管网末端 传热机理 正交实验 供冷量 

分 类 号：U463.851[机械工程—车辆工程]