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Numerical Study of Concentration Characteristics of Linear Fresnel Reflector System
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 Title & Authors
Numerical Study of Concentration Characteristics of Linear Fresnel Reflector System
Lee, Hyun Jin; Kim, Jong Kyu; Lee, Sang Nam;
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In this study, we numerically investigated the concentration characteristics of a linear Fresnel reflector system that can drive a solar thermal absorption refrigeration system to be installed in Saudi Arabia. Using an optical modeling program based on the Monte Carlo ray-tracing method, we simulated the concentrated solar flux, concentration efficiency, and concentrated solar energy on four representative days of the year - the vernal equinox, summer solstice, autumnal equinox, and winter solstice. Except the winter solstice, the concentrations were approximately steady from 9 AM to 15 PM, and the concentration efficiencies exceed 70%. Moreover, the maximum solar flux around the solar receiver center changes only within the range of . When we investigated the effects of the receiver installation height, reflector width, and reflector gap, the optimal receiver installation height was found to be 5 m. A smaller reflector width had a greater concentration efficiency. However, the design of the reflector width should be based on the capacity of the refrigeration system because it dominantly affects the concentrated solar energy. The present study was an essential prerequisite for thermal analyses of the solar receiver. Thus, an optical-thermal integration study in the future will assist with the performance prediction and design of the entire system.
Solar Concentration;Linear Fresnel Reflector;Solar Thermal Cooling;Optical Efficiency;Monte Carlo Ray-Tracing Method;
 Cited by
International Energy Agency (IEA) Report, 2010, Technology Roadmap: Concentrating Solar Power, (

Lovegrove, K. and Stein, W., 2012, Concentrating Solar Power Technology: Principles, Developments and Applications, Woodhead Publishing, Cambridge, UK.

Garcia, P., Ferriere, A. and Bezian, J. J., 2008, "Codes for Solar Flux Calculation Dedicated to Central Receiver System Applications: a Comparative Review," Solar Energy, Vol. 82, pp. 189-197. crossref(new window)

Siegel, R. and Howell, J. R., 2002, Thermal Radiation Heat Transfer, 4th ed., Taylor & Francis, New York.

Mahan, J. R., 2002, Radiation Heat Transfer: A Statistical Approach, J. Wiley, New York.

Montes, M. J., Rubbia, C., Abbas, R. and Martinez- Val, J. M., 2014, "A Comparative Analysis of Configurations of Linear Fresnel Collectors for Concentrating Solar Power," Energy, Vol. 73, pp. 192-203. crossref(new window)

Lee, H. J., Kim, J. K., Lee, S. N. and Kang, Y. H., 2011, "Heat-Flux Analysis of Solar Furnace Using the Monte Carlo Ray-Tracing Method," Trans. KSME B, Vol. 35, No. 10, pp. 989-996. crossref(new window)

Lee, H. J., Chai, K. K., Kim, J. K., Lee, S. N., Yoon, H. K., Yu, C. K. and Kang, Y. H., 2014, "Optical Performance Evaluation of a Solar Furnace by Measuring the Highly Concentrated Solar Flux," Energy, Vol. 66, pp. 63-69. crossref(new window)

Belhomme, B., Pitz-Paal, R., Schwarzbozl, P. and Ulmer, S., 2009, "A New Fast Ray Tracing Tool for High-Precision Simulation of Heliostat Fields," J. Sol. Energ. T. ASME, Vol. 131, paper 031002.

He, Y.-L., Cui, F.-Q., Cheng, Z.-D., Li, Z.-Y. and Tao, W.-Q., 2013, "Numerical Simulation of Solar Radiation Transmission Process for the Solar Tower Power Plant: From the Heliostat Field to the Pressurized Volumetric Receiver," App. Therm. Eng., Vol. 61, No. 2, pp. 583-595. crossref(new window)

Buie, D., Monger, A. G. and Dey, C. J., 2003, "Sunshape Distributions for Terrestrial Solar Simulations," Solar Energy, Vol. 74, pp. 113-122. crossref(new window)

Hottel, H. C., 1976, "A Simple Model for Estimating the Transmittance of Direct Solar Radiation through Clear Atmospheres," Solar Energy, Vol. 18, No. 2, pp. 129-134. crossref(new window)

Lee, H. J., Kim, J. K., Lee, S. N. and Kang, Y. H., 2015, " Numerical Study on Optical Performances of the First Central-Receiver Solar Thermal Power Plant in Korea," J. Mech. Sci. Technol., submitted.

Lee, H. J., 2014, "The Geometric-Optics Relation Between Surface Slope Error and Reflected Ray Error in Solar Concentrators," Solar Energy, Vol. 101, pp. 299-307. crossref(new window)