摘要
目的研究空调扇对室内热环境的实际影响效果,测试空调扇房间温湿度变化的趋势和规律.方法选择沈阳地区的两个大小、结构和格局基本相同的房间进行实验,房间尺寸为6 m×3.5 m.两房间各自布置7个对应测点;其中一间放有一台70 W的空调扇加水正常运行,房间密闭;另一个房间为无空调扇房间,也密闭门窗进行测试.实验设计全局测试和局部测试两种实验方案.结果测试数据显示空调扇运行房间运行50 min内室内平均温度呈下降趋势,之后便逐渐上升,测试结束时刻温度高出对比房间1.3℃,空调扇运行房间室内平均相对湿度一直呈现逐渐上升趋势,测试结束时刻温度高出对比房间9%;针对空调扇影响的局部空间,运行50 min内温度逐渐下降然后趋于稳定,离送风口越近的地方温度越低,相对湿度也越大.结论空调扇仅能改善局部工作环境的温湿度,房间内整体环境温湿度都会不断增大;对于干燥炎热地区可实现机械制冷空调相同的效果;直接蒸发冷却技术联合其他技术可有效扩大其应用区域.
The aim of this paper is to study the impact of the air-conditioning fan on indoor thermal environment and variation tendency of indoor temperature and humidity. Tw o rooms w hich have the same size,same structure and pattern in Shenyang w ere selected to test the effect of the airconditioning fan. The room size is 6 m × 3. 5 m. Both rooms are arranged w ith 7 correspondingmeasuring points. A 70 W air-conditioning fan runs w ith w ater in a closed room. Another room is also closed w ithout the air-conditioning fan. Global test and local test are carried out. The test data show that the average temperature in the room w ith running of air-conditioner declines w ithin 50 min,then the temperature heightens,till the test end,the temperature is 1. 3 degrees higher than that in the contrast room; The average humidity gradually increases in the room w ith running of the airconditioner fan. At the test end,the humidity is 9% higher than that in the contrast room. The temperature of space,w hich effected by the air-conditioning fan,is gradually declined and then stabilized w ithin running of 50 min. The place closed to the outlet has low er temperature and higher humidity. Conclusions is that the air-conditioner fan can only improve local environmental conditions of temperature and humidity; the temperature and humidity of the w hole room can continually increase. For dry and hot area,it has the same effect as using the mechanical refrigeration and air conditioning. Direct evaporative cooling technique combined w ith other technologies can effectively broaden its application area.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2014年第6期1077-1086,共10页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家十二五科技支撑计划项目(2012BAJ26B02)
关键词
空调扇
直接蒸发
温度
相对湿度
air-conditioning fan
direct evaporation
temperature
relative humidity
