分布式送风技术在家用热泵空调上的应用

摘要

传统家用热泵空调在使用过程中存在制热时"头热脚冷",制冷时"冷风吹人"的舒适性问题,且存在制热能量利用率低、能耗大的问题.针对上述问题,本文基于人体稳态及动态热舒适下的不同需求及空气射流的基本理论等,提出分布式送风技术解决方案.通过试验对比分析分布式送风气流组织与传统上部送风及正面送风气流组织对舒适性、能耗的影响.从试验结果可知:与传统送风方式相比,分布式送风气流组织具有更好的房间热舒适;制热的垂直空气温差可降低71％～81％;制热能耗降低,耗电量可降低29％～48％;制冷冷风不吹人,吹风感指数大幅降低.%The maj or usage problems of conventional household heat pump air condi-tioner are low thermal comfort caused by hot air to head and cold air to feet when heating, and uncomfortable draught to human body when cooling,as well as the low efficiency of energy utilization and high energy consumption when heating.Aimed at the problems a-bove mentioned,based on various needs of human thermal comfort in both steady state and dynamic state,and the basic theory of air j et,the distributed air supply technology solution is put forward.The influence of different air distribution caused by the distributed air supply,upward air supply and front air supply on the thermal comfort and energy con-sumption are analyzed contrastively by test.The test results show that compared with the traditional air supply,the distributed air supply creates more comfortable indoor thermal environment;the vertical air temperature difference is reduced by 71％-81％;it also could reduce the energy consumption and the power consumption is reduced by 29％-48％ when heating;in addition,it could avoid the cooling air blowing the human body di-rectly and the draught rate is sharply reduced when cooling.