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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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跟踪式cpc热管真空管太阳能集热器性能研究
, PP. 21-25
Keywords: 太阳能,cpc,热管真空管集热器,集热性能,集热效率
Abstract:
将复合抛物面聚光器（cpc）及跟踪技术通过简单的曲柄连杆机构与热管真空管集热器集成，研制了1套聚光比为2.3的跟踪式cpc热管真空管太阳能集热器。对该集热器在固定、间歇和连续跟踪3种模式下进行了集热性能测试，分析了跟踪方式对延长集热时间和改善集热效率的影响，对集热效率进行了拟合和归一化分析。研究结果表明：跟踪模式下集热器高效集热时间为6h，是固定模式的2倍；采用间歇跟踪即可有效提高集热性能；跟踪模式下的日平均集热效率达到45%，比固定式提高约16%。集热效率归一化拟合回归系数均大于0.936，拟合过程可信。
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