钱旺,王振华,马赛,刘贵林,贺刚,罗金海.槽式太阳能集热系统集热性能试验研究[J].农业机械学报,2018,49(s1):320-326,331.
QIAN Wang,WANG Zhenhua,MA Sai,LIU Guilin,HE Gang,LUO Jinhai.Experiment on Collector Performance of Parabolic Trough Solar Collecting System[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(s1):320-326,331.
摘要点击次数: 1425
全文下载次数: 849
槽式太阳能集热系统集热性能试验研究   [下载全文]
Experiment on Collector Performance of Parabolic Trough Solar Collecting System   [Download Pdf][in English]
投稿时间:2018-07-14  
DOI:10.6041/j.issn.1000-1298.2018.S0.042
中文关键词:  牧草干燥  槽式太阳能集热系统  集热性能  试验
基金项目:国家重点研发计划项目(2016YFD0701700)
作者单位
钱旺 中国农业机械化科学研究院呼和浩特分院有限公司 
王振华 中国农业机械化科学研究院呼和浩特分院有限公司 
马赛 中国农业机械化科学研究院呼和浩特分院有限公司 
刘贵林 中国农业机械化科学研究院呼和浩特分院有限公司 
贺刚 中国农业机械化科学研究院呼和浩特分院有限公司 
罗金海 中国农业机械化科学研究院呼和浩特分院有限公司 
中文摘要:槽式太阳能集热系统在太阳能热发电领域的应用比较成熟,由于其光-热转化效率高的特点,近些年在牧草干燥领域的应用也越来越多。为了进一步提高牧草干燥效率,以槽式太阳能集热系统作为稳定的干燥热风能源输出,研究其真空集热管集热性能和热损失是槽式太阳能热利用的关键。利用槽式太阳能集热系统加热导热油储能,通过追踪真空集热管进、出口温度和真空集热管内温度,阐述了进入真空集热管内的导热油瞬时温度与集热器瞬时光热转换效率和真空管热损失的关系。结果表明,集热器瞬时光热转换效率与导热油进入真空集热管的温度有关,进入真空集热管导热油温度越低,换热越充分,真空集热管热损失越少,真空集热管瞬时光热转换效率越高。加大真空集热管出口和入口的导热油温差是提高槽式太阳能集热蓄热能力的关键。
QIAN Wang  WANG Zhenhua  MA Sai  LIU Guilin  HE Gang  LUO Jinhai
Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd.,Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd.,Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd.,Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd.,Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd. and Hohhot Branch of Chinese Academy of Agricultural Mechanization Sciences Co.,Ltd.
Key Words:forage drying  parabolic trough solar collecting system  gathering performance  experiment
Abstract:Because of its high photo-thermal conversion efficiency, the parabolic trough solar collecting system in solar thermal power generation is more mature. Therefore,in recent years more and more applications were made in the field of forage drying. In order to further improve the efficiency of forage drying, as steady output of dry hot wind energy,the parabolic trough solar collecting system, the heat collecting performance and heat loss of vacuum heat collecting pipes were studied. Through studying,the factors that improved the heat gathering efficiency of the system was found out. Tracking the inlet, outlet and inner temperatures of a vacuum heat collector by heating the heat transfer oil storage energy using a slot solar heat collector system. The effect of instantaneous temperature of heat transfer oil was discussed from different angles, especially when entering vacuum heat collector on the transient heat conversion efficiency of heat collector. It can be deduced from the opposite side that the instantaneous heat conversion efficiency of the collector was related to the temperature of the heat guide medium when entering the collector. The lower the temperature of the heat transfer oil of the collector was, the more full the heat exchange was, and the less the heat loss of the vacuum heat collector can be got, the higher the instantaneous heat conversion efficiency of the collector can be obtained. So how to increase the heat transfer oil temperature difference between the outlet and inlet of the collector was the key to improve the heat storage capacity.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器