Performance Study of a Dual-Function Thermosyphon Solar Heating System

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• 作者：K. Velmurugan ; W. Christraj ; N. Kulasekharan…
• 刊名：Arabian Journal for Science and Engineering
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：41
• 期：5
• 页码：1835-1846
• 全文大小：1,855 KB
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Mathematics
  Science, general
  
• 出版者：Springer Berlin / Heidelberg
• 卷排序：41

文摘

The present study aims at enhancing the performance of a novel solar collector heating system and its usage. A dual-function solar heating system (DFSHS) that could be used to heat water or air individually or in a combined fashion was designed and fabricated. Experiments were conducted during winter season to highlight the DFSHS performance, using thermosyphon effect with a collector tilt angle of 25 deg. The DFSHS consists of a solar water heater, a solar air heater and a heat exchanger connected in series. The performance of the DFSHS was calculated for different collector fluid (water) flow rates. The maximum efficiency obtained from the solar water heater (SWH) was 73.68% with a flow rate of 0.0225 kg/s at 13.30 h. The solar air heater (SAH) attains a maximum efficiency of 69.18% with a flow rate of 0.0361 kg/s. The heat removal factor as well as the collector efficiency factor for different mass flow rates was estimated and reported.KeywordsDual-function solar heatingHeat removal factorCollector efficiencyThermal efficiency