Analytical studies on drop of H-W-B constants due to scaling in natural circulation flat plate solar water heater

U. C. Arunachala; L. K. Sreepathi; M. Siddhartha Bhatt

doi:10.1080/14786451.2012.755186

Analytical studies on drop of H-W-B constants due to scaling in natural circulation flat plate solar water heater

U. C. Arunachala, L. K. Sreepathi, M. Siddhartha Bhatt

Department of Mechanical & Industrial Engineering Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

It is observed that the performance of the natural circulation flat plate solar water heater (FSH) deteriorates faster due to scaling. This paper quantifies the effect of scaling on instantaneous efficiency as variation in Hottel-Whillier-Bliss (H-W-B) constants. The drop in a0 and a1 values with scale growth is evaluated and brought out as the H-W-B plot. The comprehensive analysis using developed software FLATSCALE reflects the deviation of circulating ratio with scale thickness. The individual and combined effect of mass flow rate and thermal resistance on the performance of FSH is also discussed.

Original language	English
Pages (from-to)	192-202
Number of pages	11
Journal	International Journal of Sustainable Energy
Volume	33
Issue number	1
DOIs	https://doi.org/10.1080/14786451.2012.755186
Publication status	Published - 01-01-2014

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy(all)
Process Chemistry and Technology
Fluid Flow and Transfer Processes

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10.1080/14786451.2012.755186

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abstract = "It is observed that the performance of the natural circulation flat plate solar water heater (FSH) deteriorates faster due to scaling. This paper quantifies the effect of scaling on instantaneous efficiency as variation in Hottel-Whillier-Bliss (H-W-B) constants. The drop in a0 and a1 values with scale growth is evaluated and brought out as the H-W-B plot. The comprehensive analysis using developed software FLATSCALE reflects the deviation of circulating ratio with scale thickness. The individual and combined effect of mass flow rate and thermal resistance on the performance of FSH is also discussed.",

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N2 - It is observed that the performance of the natural circulation flat plate solar water heater (FSH) deteriorates faster due to scaling. This paper quantifies the effect of scaling on instantaneous efficiency as variation in Hottel-Whillier-Bliss (H-W-B) constants. The drop in a0 and a1 values with scale growth is evaluated and brought out as the H-W-B plot. The comprehensive analysis using developed software FLATSCALE reflects the deviation of circulating ratio with scale thickness. The individual and combined effect of mass flow rate and thermal resistance on the performance of FSH is also discussed.

AB - It is observed that the performance of the natural circulation flat plate solar water heater (FSH) deteriorates faster due to scaling. This paper quantifies the effect of scaling on instantaneous efficiency as variation in Hottel-Whillier-Bliss (H-W-B) constants. The drop in a0 and a1 values with scale growth is evaluated and brought out as the H-W-B plot. The comprehensive analysis using developed software FLATSCALE reflects the deviation of circulating ratio with scale thickness. The individual and combined effect of mass flow rate and thermal resistance on the performance of FSH is also discussed.

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Analytical studies on drop of H-W-B constants due to scaling in natural circulation flat plate solar water heater

Abstract

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