Energy and exergy analyses of a solar driven trigeneration system using cascaded ejector-vapor compression refrigeration system for low temperature cooling

Khan Y., Singh P. K., Kumar G., ÇALIŞKAN H., Hong H., Kale U., ...Daha Fazla

Energy, cilt.334, 2025 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 334
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.energy.2025.137377
  • Dergi Adı: Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Cascaded ejector-vapor compression refrigeration system, Energy, Exergy, Low temperature cooling, Solar power tower, Trigeneration system
  • Uşak Üniversitesi Adresli: Evet

Özet

This study proposes a solar-based trigeneration system for producing power, heating, and cooling at −40 °C for food storage. To improve the performance of the solar-based energy generation system, the organic Rankine cycle (ORC), cascaded ejector refrigeration system (ERS), and vapor compression refrigeration (VCR) system were added to the solar power tower (SPT)-based conventional helium Brayton cycle (HBC). The energy and exergy analyses of this proposed plant were carried out using a numerical method. The results show that the solar plant (SPT-HBC-ORC-ERS-VCR) had an energy efficiency of 60.66 %, exergy efficiency of 35.55 %, and net work output of 15585 kW. Additionally, heating and cooling effects were obtained as 14967 kW and 730 kW for the industrial application and food storage application, respectively. Exergy efficiency of this solar plant is 10.09 % higher than that of a conventional SPT-HBC plant.