A techno-environmental assessment of hybrid photovoltaic-thermal based combined heat and power system on a residential home
Document Type
Article
Publication Date
8-1-2020
Abstract
This paper provides energy, exergy and environmental analyses for hybrid photovoltaic-thermal based combined heat and power system. Grid-connected configuration was used to increase the system reliability when satisfying the load. A series of battery and hot-water storages were applied for saving the excess of electricity and heat, respectively. Technical evaluations were conducted based on experimental data using real-time measurement devices throughout 31 days and estimated annual energy generation. The results showed that the average of electrical energy, thermal energy, electrical exergy and thermal exergy generations in a day were 0.34 kWh/m(2), 0.60 kWh/m(2), 0.34 kWh/m(2), and 0.01 kWh/m(2) per day, respectively with the solar irradiation average of 3.25 kWh/m(2) per day. The maximum efficiencies of electrical energy, thermal energy, electrical exergy, and thermal exergy generations were 16.73%, 51.09%, 16.73% and 0.85%, respectively. This research also found the electrical and thermal energy efficiencies of the system were degraded by 1.20% and 1.89% per year, respectively. The system reduced the carbon dioxide emission annually by 855.1 kg per year or approximately 26.75% lower than a conventional separated system. (C) 2020 Elsevier Ltd. All rights reserved.
Keywords
Hybrid photovoltaic-thermal, Combined heat and power, Energy, Exergy, Environmental
Publication Title
Renewable Energy
Divisions
umpedac
Funders
Higher Institution Centre of Excellence,UM Power Energy Dedicated Advanced Centre,Ministry of Higher Education, Malaysia (Grant No. RU007-2018, RU012-2019, UMPEDAC-2018),UM Power Energy Dedicated Advanced Centre
Volume
156
Publisher
Pergamon-Elsevier Science Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND