NDLI: Simulation of Concentrated Photovoltaic Cooling System

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Halford, Christopher Robert, F. Boehm
Copyright Year	2004
Abstract	This paper reports work underway in converting a dish-Stirling system to a dish-PV system at UNLV. The existing SAIC dish–Stirling system is being retrofitted with new fixed-focus facets and an Amonix photovoltaic receiver to replace the Stirling engine/generator package. As is the case with photovoltaic systems generally, the Amonix cells being used in this application lose efficiency as their temperatures increase. To combat this effect, cooling is provided by circulating liquid through channels in the backing plate. The liquid is then pumped through an array of automotive type radiators and the excess heat is rejected to the ambient air. Reported here is the development of a numerical model for the cooling system, with specific attention being paid to the transient response. Experimental data is taken to determine the various properties of the individual components to be used in the system and this data is used in a MatLab-based simulation. The cooling system model can then be linked to a similar model for the receiver and cell assembly and the optimization functions included in MatLab can be used to select the input parameters (pump size, number of radiators, fan speed, etc.) that maximize the overall efficiency of the system. The predictions of the model can be used in the selection of the final cooling system design and the validity of the model can be checked against the actual performance of the unit.
Sponsorship	Solar Energy Division
Starting Page	449
Ending Page	456
Page Count	8
File Format	PDF
ISBN	0791837475
DOI	10.1115/ISEC2004-65019
Volume Number	Solar Energy
Conference Proceedings	ASME 2004 International Solar Energy Conference
Language	English
Publisher Date	2004-07-11
Publisher Place	Portland, Oregon, USA
Access Restriction	Subscribed
Subject Keyword	Temperature Cooling Computer simulation Cooling systems Generators Warfare Optimization Transients (dynamics) Design Heat Simulation Pumps Photovoltaic power systems Manufacturing Stirling engines Matlab
Content Type	Text
Resource Type	Article

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