Energy and exergy analysis of two novel hybrid solar photovoltaic geothermal energy systems incorporating a building integrated photovoltaic thermal system and an earth air heat exchanger system

Masoud Afrand, Amin Shahsavar, Pouyan Talebizadeh Sardari, Kamaruzzaman Sopian, Hamzeh Salehipour

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, two novel configurations of the building integrated photovoltaic thermal (BIPVT)-compound earth-air heat exchanger (EAHE) system are proposed. Both the configurations operate in two modes, namely heating and cooling modes. In the heating mode of the configuration A, the cold outdoor air is twice preheated by passing through the EAHE and BIPVT systems. In the cooling mode of the configuration A, the hot outdoor air is precooled by flowing inside the EAHE system and the PV modules are cooled using the building exhaust air. The cooling mode of the configuration B is similar to the configuration A, while in the heating mode of the configuration B, the outdoor air first enters the BIPVT collector and then passes through the EAHE system. The energetic and exergetic performances of the configurations are investigated for climatic conditions of Kermanshah, Iran. In addition, the impacts of length, width, and depth of air duct located underneath the PV panels, air mass flow rate, length and inner diameter of the pipe of EAHE system on the annual average energetic and exergetic aspects of the best configuration of the BIPVT-EAHE system are evaluated. The outcomes revealed that the annual rate of thermal energy, electrical energy, and thermal exergy captured from the configuration A are respectively 3499.59, 5908.19, and 55.59 kWh, while these values for the configuration B are respectively 3468.16, 5969.87, and 51.76 kWh. In addition, it was found that the configuration A has superior energetic performance than the configuration B, while the overall exergetic performance of the configuration B is higher than the configuration A. Furthermore, it was depicted that both the energetic and exergetic performances of the suggested configurations intensify by augmenting the duct length, duct width, and tube diameter whereas they decline with an increase in the air mass flow rate and duct depth.

Original languageEnglish
Pages (from-to)83-95
Number of pages13
JournalSolar Energy
Volume188
DOIs
Publication statusPublished - 1 Aug 2019

Fingerprint

Geothermal energy
Exergy
Heat exchangers
Earth (planet)
Air
Ducts
Cooling
Heating
Hot Temperature
Flow rate
Ventilation exhausts
Thermal energy

Keywords

  • Building integrated photovoltaic thermal (BIPVT)
  • Earth-air heat exchanger (EAHE)
  • Energy
  • Exergy

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Energy and exergy analysis of two novel hybrid solar photovoltaic geothermal energy systems incorporating a building integrated photovoltaic thermal system and an earth air heat exchanger system. / Afrand, Masoud; Shahsavar, Amin; Sardari, Pouyan Talebizadeh; Sopian, Kamaruzzaman; Salehipour, Hamzeh.

In: Solar Energy, Vol. 188, 01.08.2019, p. 83-95.

Research output: Contribution to journalArticle

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