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Energies 2012, 5(4), 1229-1244; doi:10.3390/en5041229

Field Experiments of PV-Thermal Collectors for Residential Application in Bangkok

Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei-shi, Tokyo 184-8588, Japan
Rajamangala University of Technology, 39 Muh1, Rangsit-Nakhonnayok Road, Klong Hok, Thanyaburi Pathum Thani, 12110, Thailand
Author to whom correspondence should be addressed.
Received: 6 February 2012 / Revised: 25 March 2012 / Accepted: 11 April 2012 / Published: 23 April 2012
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This study presents experimental results on Photovoltaic-thermal (PVT) solar systems, the commercial photovoltaic (PV) panels used as solar absorbers in PVT collectors, which are amorphous and multi-crystalline silicon. Testing was done with outdoor experiments in the climate of Bangkok corresponding to energy consumption behavior of medium size Thai families. The experimental results show that the thermal recovery of amorphous silicon PVT collector is almost the same as that of multi-crystalline silicon PVT collectors while electricity generation of multi crystalline silicon PVT is 1.2 times as much as that of amorphous silicon PVT. The maximum of heat gain from the PVT systems were obtained in March in summer. It was found that PVT collectors of unit area annually produced 1.1 × 103 kWh/m2 .year of heat and 55–83 kWh/m2.year of electricity, respectively. The results show that annual average solar factor of hot water supply is 0.45 for unit collector area. Economical evaluation based on energy costs in Thailand was conducted, which estimated the payback time would be 7 and 14 years for a-Si PVT and mc-Si PV, respectively. View Full-Text
Keywords: PVT collector; performance measurement; Thailand climate; photovoltaic cell; payback years PVT collector; performance measurement; Thailand climate; photovoltaic cell; payback years
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Nualboonrueng, T.; Tuenpusa, P.; Ueda, Y.; Akisawa, A. Field Experiments of PV-Thermal Collectors for Residential Application in Bangkok. Energies 2012, 5, 1229-1244.

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