Abstract :
Although the performance of hybrid photovoltaic-thermal (PV/T) collector had been studied both experimentally
and numerically for some years, the thermal models developed in previous studies were mostly steady-state models for
predicting the annual yields. The operation of a PV/T collector is inherently dynamic. A steady-state model is not
suitable for predicting working temperatures of the PV module and the heat-removal fluid during periods of fluctuating
irradiance or intermittent fluid flow. Based on the control-volume finite-difference approach, an explicit dynamic model
was developed for a single-glazed flat-plate water-heating PV/T collector. A transport delay fluid flow model was incorporated.
The proposed model is suitable for dynamic system simulation applications. It allows detailed analysis of
the transient energy flow across various collector components and captures the instantaneous energy outputs.
2003 Elsevier Ltd. All rights reserved
