HCPV用平板式环路热管实验研究  

Experimental study on flat loop heat pipes used in HCPV systems

作　　者：朱会元[1] 张先锋[2] 刘泉[1] 刘明侯[1] 

机构地区：[1]中国科学技术大学热科学和能源工程系,安徽合肥230027 [2]中电集团第三十八研究所工程技术部,安徽合肥230088

出　　处：《中国科学技术大学学报》2013年第5期393-401,共9页JUSTC

基　　金：国家自然科学基金(11172296)资助

摘　　要：设计了一种用于高倍聚光光伏太阳能电池(HCPV)散热的混合烧结芯平板式环路热管,并实验研究了负荷、倾角、冷凝器参数等对热管启动和运行性能的影响.实验表明,该热管基本可满足HCPV负荷及安装角度要求,热面温度100℃内的最大负荷可达320 W(热流密度为40 W/cm2).蒸发器和储液器、蒸发器和冷凝器相对位置对热管性能影响很大.当储液器在蒸发器下方时启动更容易;冷凝器在蒸发器上方时低负荷启动温度下降.可通过减少冷凝器内冷却水流量,提升热管反重力运行的启动能力.A flat loop heat pipe （FLHP） with a mixed sintered wick was designed for cooling off high concentration photovoltaic （HCPV） solar cells. The effect of heat load, inclination angle and condenser parameters on the start-up and operating performance of the heat pipe was experimentally studied. It was found that the heat pipe can basically meet the needs of HCPV cooling both in heat load and installation angle requirements. The maximum heat load is up to 320 W （40 W/cm2） when the temperature of the heating surface is under 100 ℃. Relative positions between evaporator and accumulator, evaporator and condenser have important influences on the start-up and operating performance of the heat pipe. The pipe may start more easily when the compensation chamber is under the evaporator. The start-up temperature of low heat load drops when the condenser is placed above the evaporator. The capability of anti-ravitvstart-up performance of the heat pipe can be improved by reducing the flow rate of cooling water in the condenser.

关 键 词：高倍聚光光伏太阳能电池(HCPV) 平板式环路热管(FLHP) 变负荷启动运行 反重力 冷凝器 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]