Open AccessPerformance investigation of organic Rankine-vapor compression refrigeration integrated system activated by renewable energy
Author(s) -
B. Saleh,
Ayman A. Aly,
Ageel Alogla,
Awad M. Aljuaid,
Mosleh M. Alharthi,
Khaled Ahmed,
Y. S. Hamed
Publication year - 2019
Publication title -
mechanics and industry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.256
H-Index - 18
eISSN - 2257-7777
pISSN - 2257-7750
DOI - 10.1051/meca/2019023
Subject(s) - organic rankine cycle , working fluid , vapor compression refrigeration , refrigeration , process engineering , refrigerant , coefficient of performance , condenser (optics) , evaporator , environmental science , renewable energy , mechanical engineering , waste management , thermodynamics , materials science , engineering , gas compressor , waste heat , electrical engineering , heat exchanger , physics , light source , optics
In this article, the performance and working fluid selection for an organic Rankine cycle-vapor compression refrigeration (ORC–VCR) integrated system activated by renewable energy is investigated. The performance of the system is described by the system coefficient of performance (COP S ), and the refrigerant mass flow rate per kilowatt refrigeration capacity ( m ˙ total ). Twenty-three pure substances are proposed as working fluids for the integrated system. The basic integrated system performance is assessed and compared using the proposed working fluids. The basic VCR cycle works between 35 and 0 °C, while the basic ORC works between 35 and 100 °C. The impacts of different operating parameters such as the evaporator, the boiler, and the condenser temperatures on the ORC–VCR system performance are also examined. The results show that the cyclopentane accomplished the highest system performance under all investigated operating conditions. Accordingly, among the examined 23 working fluids, cyclopentane is the most appropriate working fluid for the integrated system from the viewpoints of environmental concerns and system performance. Nevertheless, due to its high flammability, further restrictions should be taken. The basic integrated system COP S , refrigeration effect, and the corresponding m ˙ total utilizing cyclopentane are 0.654, 361.3 kW, and 0.596 × 10 −2 kg/(s kW), respectively.