 Refrigerants as working fluid in a CPC collector system for electric power generationS.K. Acharya, W. Roetzel and J. Hussain Renewable Energy, 1993, vol. 3, issue 6, 757-761 Abstract: Compound parabolic concentrators (CPC) achieve highest possible concentration for any acceptance angle. One of the simplest methods of utilizing the energy of the sun to generate electric power is to use a CPC collector system. A truncated CPC can be used without much loss in concentration. Compared with a full CPC the cost of construction of a truncated CPC is much less. A CPC requires only seasonal adjustments. This further reduces the cost of tracking which is required for other types of concentrators. In this paper it has been shown that the refrigerants R11, R12, R113 and R114 can be satisfactorily used as working fluids in CPC collector systems. By using these working fluids, overall conversion efficiency of 9% can be achieved. Other refrigerants R12, B1, R22, R500, R502, R115 and C318 are found not to be suitable as they produce very low overall conversion efficiencies. In order to produce 20 kW of electricity at 1000 W/m2 insolation about 920 truncated CPC collectors (2 m length, 0.15 m aperture) with a concentration ratio of 8 are required. This minimum number of collectors would be required at an overall conversion efficiency of 9%. Date: 1993 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:3:y:1993:i:6:p:757-761 DOI: 10.1016/0960-1481(93)90083-S Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.