Energy and exergy analysis of novel combined cooling and power (CCP) cycles

Rostamzadeh, Hadi; Ebadollahi, Mohammad; Ghaebi, Hadi; Amidpour, Majid; Kheiri, Reza

doi:10.1016/j.applthermaleng.2017.06.011

Cited by 73 publications

(9 citation statements)

References 37 publications

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“…At a 40/60 concentration ratio, the energy efficiency was 9.75%, and the exergy efficiency 10.29%. Rostamzadeh et al 50 analyzed different configurations of an ORC and an ECC using R123, R245fa, and isobutane in the ORC and isobutane in the cooling cycle. To create the different configurations, the authors use diverse heat exchangers to recover the energy between the streams connecting both cycles.…”

Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

“…Almost all the studies analyzed a conventional integration of the hybrid system in which a heat exchanger was placed connecting both cycles. Only Rostamzadeh et al 50 analyzed different configurations of an ORC and an ECC integrating additional heat exchangers. They found that the energy and exergy efficiencies were 7% higher than those obtained with the conventional hybrid cycles using only one additional heat exchanger.…”

Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

“…From the comparison of the system's performance using diverse fluids, Rostamzadeh et al 50 found that the system efficiencies were higher using R123/isobutane than using R245fa/isobutane and isobutane/isobutane. Elakhadar et al 52 reported that using R601, the COPs were about 20% higher than those obtained with R123, R245fa, and R141b.…”

Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

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Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Pacheco‐Reyes

Rivera

2021

Int J Energy Res

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Summary A comprehensive review of thermodynamic cycles for the simultaneous production of power and cooling is presented. The study not only actualizes the bibliographic reviews previously realized by other authors regarding cycles such as Kalina, Goswami, or modifications of them. This review additionally includes an overview of hybrid cycles and other novel cycles reported in the literature. The hybrid cycles included in the study are systems integrated by two or three conventional cycles, mainly composed of Brayton, Rankine, and ORC for power generation; and compression, absorption, and ejector cycles for cooling production. The other novel cycles mentioned are thermodynamic cycles, which considerably differ from all the others. By using internal rectification, the Goswami cycle increased its efficiency by about 5%; however, by adding diverse components, as a condenser and a subcooler, the efficiency was significantly improved due to the considerable increase of the cooling production. Organic Rankine cycles integrating absorption refrigeration cycles are, in general, the most efficient hybrid cycles, reaching thermal efficiencies close to 40% for the simultaneous production of power and cooling. If a third output was provided, as heating or water distillation, the energy efficiencies were as high as 90%. The main problem with these systems is that, in general, they are too complex and costly because of the considerable number of components. The highest exergy destruction values are reported in solar collectors when used, followed by boilers or generators, and absorbers. The lower production costs were reported with systems integrating a Brayton cycle, an organic Rankine cycle, and an ejector‐cooling cycle. The disadvantage of these systems is that they need high operating temperatures.

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Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

Section: Hybrid Systems Integrated By Two Cyclesmentioning

confidence: 99%

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Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Pacheco‐Reyes

Rivera

2021

Int J Energy Res

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“…Finally, the ejector refrigeration system is incorporated into power cycles to recover their waste heat or/and to provide cooling in addition to the power generation. Table 5 shows the proposed studies of integrating the ejector refrigeration system with ORCs, 69,[84][85][86]95 absorption cycles, 91,92 Kaline cycles, 96,97 and SRCs. 94 The table also shows the operating conditions and achieved improvements by these novel studies.…”

Section: -53mentioning

confidence: 99%

Review of innovative approaches of thermo‐mechanical refrigeration systems using low grade heat

2020

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Cooling and refrigeration systems consume around 17% of the worldwide electricity. Enhancing the performance of these systems, using renewable energy resources and waste heat recovered from industrial processes, will lead to reduced fossil fuel consumption. Improvements of these systems using ecofriendly working fluids are of equal importance. Both options contribute to the minimization of the emissions of greenhouse gases and ozone depletion substances. In this paper, a detailed and comprehensive review of the innovative and improvement approaches of the thermo-mechanical refrigeration (TMR)

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“…The results indicated that the losses and destruction in exergy were the highest in the boiler and the lowest in the expansion valve, and the efficiency was better in the case of a low critical temperature working fluid. Other works studied in detail the combined ERS and ORC, which could recycle the waste heat for power and refrigeration, and compared it with the conventional cycle [ 29 , 30 ]. The costs that the owners and/or investors must recover include, but are not limited to preliminary feasibility and engineering studies, development costs, environmental studies, legal fees, taxes, and electrical interconnection costs [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Exergy and Exergoeconomic Analysis of a Cogeneration Hybrid Solar Organic Rankine Cycle with Ejector

Tashtoush

Morosuk

Chudasama

2020

Entropy

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Solar energy is utilized in a combined ejector refrigeration system with an organic Rankine cycle (ORC) to produce a cooling effect and generate electrical power. This study aims at increasing the utilized share of the collected solar thermal energy by inserting an ORC into the system. As the ejector refrigeration cycle reaches its maximum coefficient of performance (COP), the ORC starts working and generating electrical power. This electricity is used to run the circulating pumps and the control system, which makes the system autonomous. For the ejector refrigeration system, R134a refrigerant is selected as the working fluid for its performance characteristics and environmentally friendly nature. The COP of 0.53 was obtained for the ejector refrigeration cycle. The combined cycle of the solar ejector refrigeration and ORC is modeled in EBSILON Professional. Different parameters like generator temperature and pressure, condenser temperature and pressure, and entrainment ratio are studied, and the effect of these parameters on the cycle COP is investigated. Exergy, economic, and exergoeconomic analyses of the hybrid system are carried out to identify the thermodynamic and cost inefficiencies present in various components of the system.

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Energy and exergy analysis of novel combined cooling and power (CCP) cycles

Cited by 73 publications

References 37 publications

Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Thermodynamic cycles for the simultaneous production of power and cooling: A comprehensive review

Review of innovative approaches of thermo‐mechanical refrigeration systems using low grade heat

Exergy and Exergoeconomic Analysis of a Cogeneration Hybrid Solar Organic Rankine Cycle with Ejector

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