太阳能集热系统流量优化研究  

Study on the Flow Rate Optimization of Solar Collector System

作　　者：喻勇[1,2] 高岩[2] 张广宇[3] 蔺新星[2] 高艺珂[2] 

机构地区：[1]北京建筑大学绿色建筑与节能技术北京市重点实验室,北京100044 [2]北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京100044 [3]中国建筑设计研究院,北京100120

出　　处：《建筑科学》2014年第6期72-76,共5页Building Science

基　　金：教育部科学技术研究项目"水热作用下土壤蓄/释能时变规律与控制及建筑空调供能系统应用"(213001A);新世纪优秀人才项目(NCET-13-0654)

摘　　要：通过动态模拟仿真,本文分析了不同流量对太阳能集热系统集热量、水泵电耗的影响。通过实验验证了仿真模型,模拟数据与实验数据有较好的一致性,证明了仿真模型的可靠性。进一步模拟结果表明,太阳能集热系统的集热量会随着流量的增加而增加,但是当流量达到40 kg/(h·m2)左右时,流量进一步增加将导致集热量减小。集热系统的最优流量受集热器热性能、太阳辐射、环境温度及水泵控制策略等条件影响。The effect of different flow rates on heat-collecting capacity of solar collector system and pump power consumption was analyzed in this paper based on a dynamic simulation.The experiment proved that simulation model and simulated data was consistent well with experimental data,so the reliability of simulation model was proved.According to the further simulated results,heat-collecting capacity of solar collector system increases with the increase of flow rate,but it will decrease when flow rate was up to around 40 kg/（h·m2）.Moreover,the optimal flow rate of solar collector system is determined by meteorological conditions such as solar radiation and outdoor temperature,the pump control strategy and even the thermal performance of the collector.

关 键 词：太阳能集热系统 流量 集热量 水泵电耗 

分 类 号：TK519[动力工程及工程热物理—热能工程]