Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids

Molés, Franciscó; Navarro-Esbrí, Joaquin; Peris, Bernardo; Mota-Babiloni, Adrián; Kontomaris, K.

doi:10.1016/j.applthermaleng.2015.04.083

Cited by 84 publications

(33 citation statements)

References 28 publications

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“…R123, R134a, and R245ca were analyzed as the working fluids for high boiling temperatures (T b ¼ 220-300 1C). Moles et al [146] investigated the performance of a similar configuration. They analyzed four different environmentally friendly working fluids for ORC and VCC and reported COP values between 0.3 and 1.1 for T g between 100 and 150 1C.…”

Section: Performance Enhancement Studiesmentioning

confidence: 98%

A review of solar thermo-mechanical refrigeration and cooling methods

Zeyghami

Goswami

Stefanakos

2015

Renewable and Sustainable Energy Reviews

111

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Section: Performance Enhancement Studiesmentioning

confidence: 98%

A review of solar thermo-mechanical refrigeration and cooling methods

Zeyghami

Goswami

Stefanakos

2015

Renewable and Sustainable Energy Reviews

111

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“…Many researchers have conducted studies about integrated ORC-VCR systems. Moles et al [9] analyzed a combined ORC-VCR system under different operational conditions. The coefficient of performance of the system, that is equal to multiplication of thermal efficiency of ORC and VCR, changed between 0.3 and 1.1 according to these operational conditions.…”

Section: Introductionmentioning

confidence: 99%

Energy and Exergy Analysis of Combined Organic Rankine Cycle-Single and Dual Evaporator Vapor Compression Refrigeration Cycle

Pektezel

Acar

2019

Applied Sciences

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Featured Application: Novel combined ORC-VCR cycle and its comparison with usual ORC-VCR cycle are explained. Performance of different working fluids is investigated. Effects of various operational parameters on system performance are shown.Abstract: This paper presents energy and exergy analysis of two vapor compression refrigeration cycles powered by organic Rankine cycle. Refrigeration cycle of combined system was designed with single and dual evaporators. R134a, R1234ze(E), R227ea, and R600a fluids were used as working fluids in combined systems. Influences of different parameters such as evaporator, condenser, boiler temperatures, and turbine and compressor isentropic efficiencies on COP sys and η ex,sys were analyzed. Second law efficiency, degree of thermodynamic perfection, exergy destruction rate, and exergy destruction ratio were detected for each component in systems. R600a was determined as the most efficient working fluid for proposed systems. Both COP sys and η ex,sys of combined ORC-single evaporator VCR cycle was detected to be higher than the system with dual evaporator.

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“…The system attained a COP S value of approximately 0.5. Molés et al [17] inspected an ORC-VCR system utilizing two working fluids for the ORC and two different fluids for the VCR. The results showed that the most suitable fluid for the power subsystem is R1336mzz(Z), while R1234ze(E) is the best fluid for the cooling subsystem.…”

Section: Introductionmentioning

confidence: 99%

“…HFEs are low toxic, nonflammable, have very low GWP, short atmospheric lifetime (ALT), and zero ODP; accordingly, they have been suggested as working fluids for thermal systems [23]. Moreover, many HFOs were recommended as working fluids due to their low environmental impacts [1,17].…”

Section: Introductionmentioning

confidence: 99%

Performance investigation of organic Rankine-vapor compression refrigeration integrated system activated by renewable energy

Saleh

Aly

Alogla

et al. 2019

Mechanics & Industry

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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 (COPS), 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 COPS, refrigeration effect, and the corresponding m˙total utilizing cyclopentane are 0.654, 361.3 kW, and 0.596 × 10−2 kg/(s kW), respectively.

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Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids

Cited by 84 publications

References 28 publications

A review of solar thermo-mechanical refrigeration and cooling methods

A review of solar thermo-mechanical refrigeration and cooling methods

Energy and Exergy Analysis of Combined Organic Rankine Cycle-Single and Dual Evaporator Vapor Compression Refrigeration Cycle

Performance investigation of organic Rankine-vapor compression refrigeration integrated system activated by renewable energy

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