Optical Losses through Gaps of CPCs with One-Sided Flat Absorber

Feng Tang; Run Sheng Tang

doi:10.4028/www.scientific.net/AMM.737.46

Paper Titles

Influences of Environmental Factors on the Maximum Power Point of Photovoltaic Cells
p.24

Large-Scale Automatic New Energy Resources System Controlling Temperature and Pressure
p.30

New Process for Etherification of Glycerol with Isobutene
p.33

Numerical Simulation and Experimental Research on Higher Heating Value Biomass Gas Gasifier
p.38

Optical Losses through Gaps of CPCs with One-Sided Flat Absorber
p.46

Performance Analysis of Diesel Engine Using Bio Ethanol (Water Hyacinth) by Response Surface Methodology (RSM)
p.53

Research of Characteristics Biomass Staged-Gasification for Hydrogen-Rich Syngas
p.60

Research on the Correlation between Biodiesel's Composition and Physical & Chemical Properties
p.65

Theory of Solar Hot Water System Construction Application Engineering Evaluation Field Test Method - The Amount of Solar Irradiance Intercept Method
p.71

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 737Optical Losses through Gaps of CPCs with One-Sided...

Optical Losses through Gaps of CPCs with One-Sided Flat Absorber

Abstract:

In this work, the angular dependence of optical losses through gaps, constructed by truncating reflectors near the absorbers, of CPCs with one-sided flat absorber was presented, and the annul radiation loss through gaps of east-west aligned CPCs is theoretically investigated. Results show that the optical losses are mainly resulted from direct radiation loss through gaps due to direct irradiation on gaps, and the loss of radiation that arrive on gaps from reflectors after multiple reflections is considerable small and can be neglected in solar calculations especially for truncated CPCs. Results also show that the annual direct radiation loss is dependent on geometric parameters of CPCs but seems independent on solar resource in sites where CPCs are used, and the annual radiation loss of full CPCs oriented in east-west direction with the tilt-angle of aperture being yearly fixed is almost identical to average optical loss of the CPC over its acceptance angle.

You might also be interested in these eBooks

Applied Energy and Environment Technologies and Materials

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 737)

Pages:

46-52

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.737.46

Citation:

Cite this paper

Online since:

March 2015

Authors:

Feng Tang, Run Sheng Tang*

Keywords:

Annual Radiation Loss, Compound Parabolic Concentrator, Direct Optical Loss through Gaps, Theoretical Analysis

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] A. Rabl: Active solar collectors and their applications (Oxford University Press, Oxford 1985).

Google Scholar

[2] T.K. Mallick, P.C. Eames, T.J. Hyde and B. Norton: Solar Energy, Vol. 77 (2004), p.319.

Google Scholar

[3] T.K. Mallick, P.C. Eames and B. Norton: Solar Energy, Vol. 80 (2006), p.834.

Google Scholar

[4] M. Brogren, J. Wennerberg, R. Kapper, B. Karlsson: Solar Energy Materials and Solar Cells, Vol. 75 (2003), pp.567-575.

DOI: 10.1016/s0927-0248(02)00162-9

Google Scholar

[5] W.R. Mcinture: Solar Energy, Vol. 25 (1980), p.215.

Google Scholar

[6] M. G. Wu, R. S. Tang, Y.B. Cheng: Transaction of the CSAE, Vol. 25(2009), p.308.

Google Scholar

[7] Y. M. Yu, R. S. Tang: Advanced Materials Research, Vol. 588-589 (2012), p.603.

Google Scholar

[8] R. S. Tang, J. F. Wang: Renewable Energy, Vol. 57(2013), p.490.

Google Scholar

[9] R. S. Tang, X.Y. Liu: Solar Energy Vol. 85(2011), p.2154.

Google Scholar

[10] Y.M. Yu, N.Y. Liu, R.S. Tang: Renewable Energy Vol. 62(2014), p.679.

Google Scholar

[11] G.H. Li, R.S. Tang, H. Zhong: Advanced Materials Research, Vol. 424-425(2012), p.805.

Google Scholar

[12] Z.Y. Chen: The climatic summarization of Yunnan (Weather Publishing House, Beijing 2001).

Google Scholar

[13] R.S. Tang, M.G. Wu, Y.M. Yu, M. Li: Renewable Energy, Vol. 35 (2010), p.1837.

Google Scholar