双轴追光太阳能真空热管式集热器增效研究
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摘要
当阳光垂直入射时,集热器接收到的太阳辐射量折减最小。基于此原理,设计出一种太阳光线入射角接近90°角的双轴追光太阳能真空热管式集热器。通过热平衡法对太阳能集热器的全天集热总量,光热转化效率进行了测试。研究结果表明:乌鲁木齐7月典型日日出日落时期,双轴追光太阳能真空热管式集热器与固定角度真空热管式集热器相比,总集热量增加了240%,同一时刻光热转化效率增效最高达180%。
The reduction amount of solar radiation received by the collector is minimized when the sun is perpendicular to the incident. Based on the principle,the paper designs a solar vacuum heat pipe collector with a sun-ray angle approaching 90° by two-axis chasing light. The heat transfer efficiency and total heat collection of solar collectors is tested by heat balance method. The results show that,during the sunrise and sunset period on the typical day in July in Urumqi,compared with the fixed angle vacuum heat pipe collector,the heat transfer efficiency of dual-axis solar vacuum heat pipe collector is increased by 240%,and that of the optical heat conversion is increased by 70%.
The reduction amount of solar radiation received by the collector is minimized when the sun is perpendicular to the incident. Based on the principle,the paper designs a solar vacuum heat pipe collector with a sun-ray angle approaching 90° by two-axis chasing light. The heat transfer efficiency and total heat collection of solar collectors is tested by heat balance method. The results show that,during the sunrise and sunset period on the typical day in July in Urumqi,compared with the fixed angle vacuum heat pipe collector,the heat transfer efficiency of dual-axis solar vacuum heat pipe collector is increased by 240%,and that of the optical heat conversion is increased by 70%.
引文
[1]陈庚.槽式太阳能集热器热性能分析与实验[D].重庆:重庆大学,2012.
[2]王世军,汪世益,李亮,等.基于太阳辐射量控制的新型跟踪系统研究[J].井冈山大学学报:自然科学版,2016,37(5):63-68.
[3]赵旭.应用于太阳能供暧的太阳智能追踪系统[D].石家庄:河北科技大学,2015.
[4]杨亚龙.太阳能电池板自动追光系统研究与实现[D].西安:长安大学,2014.
[5]东朝阳.槽式太阳能集热器热效率分析研究[D].北京:华北电力大学,2013.
[6]刘鉴民.太阳能利用[M].北京:电子工业出版社,2010:78-86.
[7]赵玉兰.CPC热管式真空管太阳能集热器传热特性的研究[D].南京:南京工业大学,2006.
[8]靳明聪,陈远国.热管及热管换热器[M].重庆:重庆大学出版社,1986.
[9]黄秀勇,王军,王金平,等.翅片热管式真空集热管的热性能研究[J].太阳能学报,2016,37(9):2298-2305.
[10]马江燕.典型气象年下我国正南安装的太阳能集热器最佳倾角的计算与分析[J].铁道建筑技术,2012,(5):110-113.
[11]ASHRAE 93-97,Method of testing to determine the thermal performance of solar collectors.ASHRAE Standard,1977.
[12]GB/T 18708-2002,家用太阳能热水系统热性能试验方法[S].
[2]王世军,汪世益,李亮,等.基于太阳辐射量控制的新型跟踪系统研究[J].井冈山大学学报:自然科学版,2016,37(5):63-68.
[3]赵旭.应用于太阳能供暧的太阳智能追踪系统[D].石家庄:河北科技大学,2015.
[4]杨亚龙.太阳能电池板自动追光系统研究与实现[D].西安:长安大学,2014.
[5]东朝阳.槽式太阳能集热器热效率分析研究[D].北京:华北电力大学,2013.
[6]刘鉴民.太阳能利用[M].北京:电子工业出版社,2010:78-86.
[7]赵玉兰.CPC热管式真空管太阳能集热器传热特性的研究[D].南京:南京工业大学,2006.
[8]靳明聪,陈远国.热管及热管换热器[M].重庆:重庆大学出版社,1986.
[9]黄秀勇,王军,王金平,等.翅片热管式真空集热管的热性能研究[J].太阳能学报,2016,37(9):2298-2305.
[10]马江燕.典型气象年下我国正南安装的太阳能集热器最佳倾角的计算与分析[J].铁道建筑技术,2012,(5):110-113.
[11]ASHRAE 93-97,Method of testing to determine the thermal performance of solar collectors.ASHRAE Standard,1977.
[12]GB/T 18708-2002,家用太阳能热水系统热性能试验方法[S].