ព្រឹត្តិបត្រស្រាវជ្រាវ (Research Articles)

Title
Performance and economic evaluation of a photovoltaic/thermal (PV/T)-cascade heat pump for combined cooling, heat and power in Tropical climate area
Author(s)Rithy Kong, Thoranis Deethayat, Attakorn Asanakham, Tanongkiat Kiatsiriroat
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Keywords   Cascade heat pump     Combined cooling     Economic assessment     Heat and power     PV/T sizing     Tropical climate  
Abstract

Performance analysis of a new PV/T-cascade heat pump design having 7-kW maximum cooling capacity for combined cooling, heat and power was simulated with the climate of Chiang Mai, a city in tropical area. The technique could enhance both electrical performance of PV/T module, and heat pump thermal performance for cool water (below 17oC) and hot water (80-90oC) generations. Part of the cool water generated by the heat pump was used to cool down the PV/T module temperature and increase the PV/T generated electrical power. In addition, the heat from the PV/Ts became additional cooling load of the heat pump then the cooling and heating capacities of the heat pump could be increased. The unit was used to replace the existing units, a hot water electrical heating system and a vapor-compression chilled water system. With the electrical power generated by a set of PV/T modules, the new unit could save the grid electrical consumption significantly. From economic assessment with 10-hour daily operating time (7:00-17:00), the suitable PV/T module number each of 200 Wp (peak power) was found to be 7. It could also be found that 23.76×10^3 kWhe of the annual grid electrical energy was saved and the payback period of the unit was 7.87 years.

JournalJournal of Energy Storage
Publisher/InstitutionElsevier
Field/FacultyFaculty of Engineering
Publication Year2020
Volumn30
IssueB
Pages101507
DOIhttps://doi.org/10.1016/j.est.2020.101507
Recommended CitationRithy Kong, Thoranis Deethayat, Attakorn Asanakham, Tanongkiat Kiatsiriroat. (2020). Performance and economic evaluation of a photovoltaic/thermal (PV/T)-cascade heat pump for combined cooling, heat and power in Tropical climate area. Journal of Energy Storage, 30, 101507
Contact Emailkongrithyitc@gmail.com