Energy Procedia · 2011 · 23 citations · 6 references
EngineeringElectrical EngineeringMechanical EngineeringEnergy SystemsHeat TransferRenewable Energy SystemsHeat PumpsRenewable EnergySolar CellsSolar Energy SystemsSolar Photovoltaic SystemsThermal ManagementEnergy Balance ModelsEnergy PerformanceHeat Pump System ModelingHeat Pump SystemsPhotovoltaic System ModelingPhotovoltaic System SimulationPhotovoltaic Thermal SystemsSolar-to-thermal Conversion Efficiency
A theoretical analysis of novel direct expansion heat pump system incorporating a Photovoltaic/Thermal (PV/T) solar collector acting as the evaporator is presented in this paper. Based on energy balance of each parts of the vacuum-tube-PV sandwich and the four main components of the heat pump system, mathematical models are developed to evaluate the energy performance of the heat pump and the electrical and thermal performances of the PV cells, under the climatic conditions of the City of Nottingham, UK. The simulation results indicate that the average monthly thermal and electrical efficiencies are 0.752 and 0.155 respectively, and the average monthly COP reaches 5.35
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The yield of different combined PV-thermal collector designs
H.A. Zondag, D.W. de Vries, Wim van Helden et al. · Solar Energy · 2003 · 652 citations