主动太阳能采暖供水管流量规律研究  

THE FLOWRATE OF WATER SUPPLY PIPE FOR SOLAR HEATING

作　　者：王登甲[1] 刘艳峰[1] 王丽娟[1] 

机构地区：[1]西安建筑科技大学,西安710055

出　　处：《太阳能学报》2011年第9期1387-1390,共4页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(50778144)

摘　　要：通过对集热器有效集热量、建筑热负荷、蓄热系统蓄热量、蓄热水箱损失以及蓄热水箱温度的理论分析,建立了太阳能采暖供水管流量数学模型,且分别在不同太阳辐射强度与不同建筑热负荷波动规律下进行模拟分析,得出蓄热水箱温度变化规律以及各种情况下采暖供水管流量变化规律。结果表明:蓄热水箱温度受太阳辐射强度波动规律影响较大,受建筑热负荷波动规律影响较小,其中蓄热水箱温度基本在30～70℃之间;太阳辐射强度相同,建筑热负荷越大所需采暖管流量也越大,流量最大、最小值分别可达到0.810、0.008kg/s;随着太阳辐射强度波动规律的增大,采暖管流量波动规律亦相应增大。The mathematical model of the flow of water supply pipe for solar heating was established including the parameters of heat load of the building, regenerative heat of heat storage system, the loss of heat storage tank and the temperature of heat storage tank. With the simulation and analysis of the different solar radiation intensity and the variation rule of different heat load of the building, the variation rule of the temperature of heat storage tank and the variation rule of the flow in different cases were obtained. The results showed that the variation rule of solar ra- diation intensity has a bigger effect on the temperature of heat storage tank, meanwhile the variation rule of heat load of building has a smaller effect on it. Besides, the temperature of heatstorage tank is about between 30℃ and 70℃; in the same solar radiation intensity, the bigger heat load of building the more flow of water supply pipe is needed. The maximum flow and the minimum flow can reach 0.81 kg/s and 0. 008 kg/s, respectively. The varia- tion rule of the flow increases with the increasing of the variation rule of solar radiation intensity correspondingly.

关 键 词：太阳能采暖 蓄热温度 流量 

分 类 号：TK511.2[动力工程及工程热物理—热能工程]