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Authors
Affiliations
1 Dept. of Mech. Engg., Manipal Institute of Technology, Manipal - 576 104, IN
2 Central Power Research Institute, Bengaluru - 560 080, IN
3 Dept. of Mech. Engg., JNN College of Engineering, Shimoga - 577 204, IN
Source
Power Research, Vol 5, No 1 (2009), Pagination: 109-119
Abstract
Scale formation in risers of solar flat plate collectors is evident in places where hard water is being used. This affects both the component functioning as well as system performance. In this paper, the influence of scale deposition on instantaneous efficiency, mass flow rate and heat transfer rates are analysed by the Hottel-Whillier-Bliss (H-W-B) equation in both natural and forced circulation systems. It is observed that variation of mass flow rate affects collector efficiency more than variation of heat transfer rates.
Keywords
Solar Flat Plate Water Collector, Scaling, Hardness, Instantaneous Efficiency, Natural Circulation Systems, Forced Circulation Systems.
