作业区环境参数对汽车总装车间工位送冷风能耗的影响研究
Influence of environmental parameters in operation area onenergy consumption of cold air supply at workstations inautomobile assembly workshops
摘要：
以夏热冬冷地区汽车总装车间的作业区为研究对象,采用PMV-PPD评价模型和温差射流模型为理论基础,通过数值模拟分析了作业区热湿环境参数对送冷风系统能耗影响的显著性,并对相同PMV条件下任意2个环境参数相互耦合作用时的能耗进行了比较。结果表明:在Ⅱ级舒适度空气参数范围内,对系统能耗影响程度从大到小依次为相对湿度、风速和温度;系统能耗与PMV值不完全相关;在相同PMV条件下,任一环境参数与另外2个参数分别耦合作用,其值的改变所导致的系统能耗变化率差别很大,最大约为55.6%,最小仅为3.5%。研究结果可为汽车总装车间工位送风环境参数的选取提供参考。
Abstract：
Taking the operation area of the automobile assembly workshop in hot summer and cold winter zone as the research object, and the PMV-PPD evaluation model and the temperature difference jet model as the theoretical basis, this paper analyses the significance of the influence of thermal and humid environmental parameters in the operation area on the energy consumption of the cold air supply system through numerical simulation, and the energy consumption when any two environmental parameters are coupled with each other under the same PMV conditions is compared. The results show that within the range of comfort level II air parameters, the degree of impact on system energy consumption in order from large to small is relative humidity, wind speed and temperature. The energy consumption of the system is not completely correlated with the PMV value. Under the same PMV conditions, the rate of change in system energy consumption caused by the coupling effect of any environmental parameter with the other two parameters varies greatly, with the maximum being about 55.6% and the minimum being only 3.5%. The research results can provide a reference for the selection of air supply environmental parameters for automobile assembly workshop workstations.
Keywords:operation area; environmental parameter; automobile assembly workshop; workstation; cold air supply; PMV-PPD evaluation model; energy consumption