Investigation of the energetic, exergetic performance, environmental, economic, and hydrogen production analyses of PV-T for increasing surface areas and mass flow rates compared to PV


ATIZ A., KARAKILÇIK M., Sogukpinar H., Bozkurt I.

International Journal of Hydrogen Energy, vol.49, pp.424-436, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 49
  • Publication Date: 2024
  • Doi Number: 10.1016/j.ijhydene.2023.08.082
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.424-436
  • Keywords: Energy and exergy efficiency, Environmental and economic analysis, Hydrogen and electricity production, PV, PV-T, Solar energy
  • Çukurova University Affiliated: Yes

Abstract

This study investigated the energetic and exergetic efficiencies and environmental and economical, electricity and hydrogen production analyses of water-cooled photovoltaic thermal (PV-T) solar collectors and PV. For this purpose, simulations were made with Engineering Equation Solver (EES) for PV-T and PV systems with 3 different areas (A1 = 1 m2, A2 = 3 m2, and A3 = 5 m2). Also, PV-T was cooled with three mass flow rates (m˙1=0.01 kg/s, m˙2=0.03 kg/s and m˙3=0.05 kg/s). Simulations were made for each hour from 7 a.m. to 7 p.m. for a day in July. As a result, the maximum daily electricity production of the PV-T for the A1, A2, and A3 were found for m˙3=0.05 kg/s as 3.791 MJ, 11.227 MJ, and 18.49 MJ. The maximum daily electricity production PV for the A1, A2, and A3 were found as 3.305 MJ, 9.916 MJ, and 16.527 MJ. The highest energetic efficiency of the PV-T was found for m˙3=0.05 kg/s as 60.52%, 58.87%, and 57.19%. The highest exergetic efficiency of the PV-T was found for m˙1=0.01 kg/s as 16.77%, 16.89%, and 16.61% for A1, A2, and A3. The highest energetic and exergy efficiency of the PV was found as 14.40% and 15.44%. When PV-T cooled with a maximum of m˙3=0.05 kg/s, the system saved a total of 0.8475 kg 2.4799 kg, and 4.0368 kg CO2 for A1, A2, and A3. The daily carbon savings of the PV were found as 0.3709 kg, 1.1128 kg, and 1.8545 kg for the same areas. The highest hydrogen production of the system with PV-T was found for m˙3=0.05 kg/s as 18.5677 g 54.9966 g and 90.566 g for A1, A2, and A3. The daily hydrogen production of the system with the PV were found as 16.1884 g, 48.5637 g and 80.9418 g for A1, A2, and A3. The highest monthly economic contribution of the system with PV-T was found for m˙3=0.05 kg/s as 360.22 TL, 1047.22 TL and 1693.65 TL for A1, A2, and A3. Also, daily economic contribution of the system with PV was found 73.67 TL, 221.01 TL and 368.35 TL for same areas. It was found that the production performance of the system increased as the cooling flow rate increased and the PV-T area decreased. Also, the thermodynamic efficiency, the electricity and hydrogen production, economic contribution and carbon savings of the system with PV-T are found higher than the system with PV in all combinations.