H. Dehra (Canada)
Simulation method, solar energy, heat exchange, numerical model, experiments
A method for simulation of solar energy devices connected to a building has been proposed. The solutions of one dimensional heat conduction and heat transport equations are obtained both with the new method as well as traditional method used for design and optimisation of solar energy devices. The proposed method has improved the accuracy of a traditional method by considering additional heat exchange paths of conduction and radiation so as to accurately predict mass flow rate through solar energy devices. The direct matrix inversion with a control volume finite difference procedure has been adopted in the proposed method. A discretisation procedure for location of composite surface and fluid nodes in the control volumes has been developed for obtaining the temperature solutions. The accuracy of the proposed method is a function of magnitude and number of heat transport and conjugate heat exchange conductance terms of conduction, convection and radiation. The proposed method has been validated with numerical and experimental results obtained for a full scale configuration of a solar panel energy device connected to a building.
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