Paper Conference

Proceedings of eSim 2014: 8th Conference of IBPSA-Canada

     

Computational Fluid Dynamics (CFD) Analysis of Air Based Building Integrated Photovoltaic Thermal (BIPVT) Systems for Efficient Performance

H. Getu, T. Yang, A. K. Athienitis, A. Fung,

Abstract: This paper presents CFD study of BIPV/T systems with forced convection using air as a coolant with various air flow rates (air velocities). Predictions of the PV’s back surface, the air inside the channel and the insulation temperature profiles were compared with experimentally obtained temperature profiles. COMSOL Multiphysics finite element analysis (FEA) software was used to develop CFD models for a BIPV/T system; and to investigate the accuracy of predictions of temperature profiles using the k-ε and k-ω turbulence models. Turbulent flows were considered with Reynolds number ranging from 2577 to 9392. Predictions of the PV’s back surface temperature, the temperature of the flowing air and the insulation temperature agreed very well with the measured temperatures. The results indicate that CFD could be used to obtain temperature profiles in order to establish relationships between the average/local convective heat transfer coefficients and air flow velocity. The relationships obtained will be useful for simple mathematical models that facilitate the design and optimization of different parts of the BIPV/T system. 1
Pages: 205 - 222
Paper:
esim2014_5A_1