Analysis on Cooling Performance of Capillary Mesh Cool-ing Seat Samples
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 cush-ion.Based on the temperature difference between the seat cushion surface and the human body,thermal ex-change 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 stud-ied.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 dif-ference between the indoor temperature and the supply and return level.The cooling capacity of the seat cush-ion 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 tempera-ture 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 condensa-tion.
Capillary Mesh EndHeat Transfer MechanismOrthogonal ExperimentCooling Capacity
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