两种集中式太阳能集热器集热效率对比研究
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摘要
针对真空管式和平板式两种使用最多的太阳能集热器开展研究,选取两种系统对其效果进行实测,并对TRNSYS模拟软件的模拟结果进行验证,然后对两种集热系统在不同太阳能辐射区间进行典型日集热效率模拟,进而进行全年辐射和温度条件下进行模拟。结果显示,条件相同情况下,无论典型日还是全年平均值,平板式集热器集热效率均高于真空管式。平板式太阳能热水系统为47. 1%,而真空管式太阳能热水系统的全年平均集热效率为42. 9%;同种条件下,在有太阳辐射时,室外温度对平板式太阳能集热器集热效率有影响,但影响不大。
The most used solar collectors of vacuum tube and flat plate are researched. First of all,two kinds of systems are selected to measure the effect,and the simulation results of the TRNSYS simulation software are verified. Then the heat collector efficiency of two kinds of heat collector systems in different solar radiation intervals of the typical day is simulated. Then the simulation of radiation and temperature in the whole year is carried out. The results show that,under the same condition,the heat collecting efficiency of the flat-plate collector is higher than that of the vacuum tube,regardless of the typical day or the annual average. The flat-plate solar hot water system is 47. 1%,and the annual average heat efficiency of the vacuum tube type solar water system is 42. 9%. Under the same condition,when there is solar radiation,the outdoor temperature has an effect on the heat collecting efficiency of the flat-plate solar collector,but it has little influence.
The most used solar collectors of vacuum tube and flat plate are researched. First of all,two kinds of systems are selected to measure the effect,and the simulation results of the TRNSYS simulation software are verified. Then the heat collector efficiency of two kinds of heat collector systems in different solar radiation intervals of the typical day is simulated. Then the simulation of radiation and temperature in the whole year is carried out. The results show that,under the same condition,the heat collecting efficiency of the flat-plate collector is higher than that of the vacuum tube,regardless of the typical day or the annual average. The flat-plate solar hot water system is 47. 1%,and the annual average heat efficiency of the vacuum tube type solar water system is 42. 9%. Under the same condition,when there is solar radiation,the outdoor temperature has an effect on the heat collecting efficiency of the flat-plate solar collector,but it has little influence.
引文
[1]蒋秀娟,唐婷.《中国建筑节能年度发展研究报告2011》发布[N].科技日报,2011-03-28.
[2]焦青太.当今世界太阳能热水器的发展状况[J].建筑节能,2007,(8):59-62.
[3]马健.平板式太阳能集热器的发展综述[J].江苏科技信息,2017,(22):46-49.
[4]李勇,胡明辅,赵宏伟,等.平板型与真空管型太阳能热水器发展状况分析[J].应用能源技术,2007,(11):36-39.
[5]黄逊青.家用平板太阳能热水器或迎发展新机遇[J].电器,2013,(8):52-55.
[6]SHUKLA A,BUDDHI D,SAWHNEY R L. Solar water heaters with phase change material thermal energy storage medium:a review[J]. Renew able and Sustainable Energy Review s,2009.
[7]TYAGI V V,KAUSHIK S C,TYAGI S K. Advancement in solar photovoltaic/thermal(PV/T)hybrid collector technology[J]. Renew able and Sustainable Energy Review s,2012.
[8]Neeraj Sharma,Gerardo Diaz. Performance model of a novel evacuated-tube solar collector based on minichannels[J]. Solar Energy,2011,85(5):881-890.
[9]AYOMPE L M,DUFFY A,KEEVER M M. Comparative field performance study of flat plate and heat pipe evacuated tube collectors(etcs)for domestic w ater heating systems in a temperate climate[J]. ENERGY,2011,36(5):3370-3378.
[10]孙自帅,陶汉中,张建东,等.双层玻璃盖板平板太阳能集热器数值模拟[J].热力发电,2016,45(11):54-60.
[2]焦青太.当今世界太阳能热水器的发展状况[J].建筑节能,2007,(8):59-62.
[3]马健.平板式太阳能集热器的发展综述[J].江苏科技信息,2017,(22):46-49.
[4]李勇,胡明辅,赵宏伟,等.平板型与真空管型太阳能热水器发展状况分析[J].应用能源技术,2007,(11):36-39.
[5]黄逊青.家用平板太阳能热水器或迎发展新机遇[J].电器,2013,(8):52-55.
[6]SHUKLA A,BUDDHI D,SAWHNEY R L. Solar water heaters with phase change material thermal energy storage medium:a review[J]. Renew able and Sustainable Energy Review s,2009.
[7]TYAGI V V,KAUSHIK S C,TYAGI S K. Advancement in solar photovoltaic/thermal(PV/T)hybrid collector technology[J]. Renew able and Sustainable Energy Review s,2012.
[8]Neeraj Sharma,Gerardo Diaz. Performance model of a novel evacuated-tube solar collector based on minichannels[J]. Solar Energy,2011,85(5):881-890.
[9]AYOMPE L M,DUFFY A,KEEVER M M. Comparative field performance study of flat plate and heat pipe evacuated tube collectors(etcs)for domestic w ater heating systems in a temperate climate[J]. ENERGY,2011,36(5):3370-3378.
[10]孙自帅,陶汉中,张建东,等.双层玻璃盖板平板太阳能集热器数值模拟[J].热力发电,2016,45(11):54-60.