Investigation of the performance of modified organic Rankine cycles (ORCs) and modified trilateral flash cycles (TFCs) assisted by a solar pond

Zeynali, Arezu; Akbari, Ali; Khalilian, Morteza

doi:10.1016/j.solener.2019.03.001

Cited by 39 publications

(8 citation statements)

References 33 publications

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“…The results showed that the regenerative ORC with a recuperator has the maximum thermal and exergy efficiency and relative lower exergy loss. Zeynali et al 113 also investigated these four kinds of ORC configurations applied in solar energy utilization. Regenerative ORC with a recuperator using R123 showed the highest thermal efficiency and network output.…”

Section: Theoretical Research Studies On Orc Configurationsmentioning

confidence: 99%

An overview on subcritical organic rankine cycle configurations with pure organic fluids

Guo

Lei

et al. 2021

Int J Energy Res

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Section: Theoretical Research Studies On Orc Configurationsmentioning

confidence: 99%

An overview on subcritical organic rankine cycle configurations with pure organic fluids

Guo

Lei

et al. 2021

Int J Energy Res

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“…Primarily vapor Rankine cycle with water as a working fluid is a way to convert a large amount of thermal energy into power [1]- [7]. Water has phenomenal properties (thermal/chemical), is easy to pump from one place to another also has some disadvantages like erosion of blades and it is not suitable for low-temperature applications [3], [6], [8]. To fill this gap, the need for a conventional or organic working fluid that has a better property at low-temperature ranges to recover lower heat into work.…”

Section: Introductionmentioning

confidence: 99%

A review on efficiency improvement methods in organic Rankine cycle system: an exergy approach

Raju

Rao

2022

IJAAS

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<span>Exergy, one of the handed-down energy conservation techniques, which can obtain from thermodynamic laws (first and second), will disclose the work presented within the system, the amount of irreversibility as well as what are the possible ways to reduce inefficiencies in the system. This discourse mainly highlighted various techniques and possible methods for efficiency improvement in the organic Rankine cycle (ORC). That means mainly concentrated on following key parameters like the selection of working fluid, suitable expander, the different heat source of an evaporator, and modifications in heat exchanger based on the application of ORC system through an exergy approach for better performance, decrease energy losses, and destruction rate. This review can help to pontificate for better-summarized results that were done before and suggested some ideas for how to select an optimized parameter for better efficiency and to decrease the destruction rate in the ORC system. </span>

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“…Organic Rankine Cycle (ORC) systems, making use of the working medium phase transition, convert cold and heat into electricity. Concerning the ORC system researches, studies are mainly concentrated on three subjects: heat and cold sources, such as geothermal, 7 solar energy, 8 and industrial waste heat 9 ; working fluids (WFs) selection, such as pure WFs 10 and zeotropic mixtures 11 ; system structures, such as preheater type, 12 integrated type, 13 and series and parallel type. 14 Application of ORC systems for waste heat utilization and engine efficiency improvement is popular in recent studies.…”

Section: Introductionmentioning

confidence: 99%

Thermo‐economic analysis and optimization of a combined Organic Rankine Cycle ( ORC ) system with LNG cold energy and waste heat recovery of dual‐fuel marine engine

Tian

Yue

et al. 2020

Int J Energy Res

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A combined Organic Rankine Cycle (ORC) system with liquefied nature gas (LNG) cold energy and dual-fuel (DF) marine engine waste heat utilization was proposed. Engine exhaust gas and engine jacket cooling water were adopted as parallel heat sources. Thermo-economic analyses of the proposed system with 32 working fluids combinations were performed. Two objective functions covering thermal efficiencies and economic index were employed for performance evaluation. Afterward, the effects of operation pressure on the objective functions were investigated. Finally, the optimal conditions were obtained from the Pareto front with the Non-dominated Sorting Genetic Algorithm-II (NSGA-II) method. The results show that the proposed ORC system has better energy recovery performances than the parallel ORC system. R1150-R600a-R290, R1150-R601a-R600a, and R170-R601-R290 are determined as the three most promising working fluids combinations. Under optimized conditions, the output power range is 199.97 to 218.51 kW, the energy efficiency range is 13.64% to 15.62%, and the exergy efficiency range is 25.29% to 27.3%. The payback period ranges from 8.36 to 8.74 years. The working fluids selection helps to reduce the exergy destruction of intermediate heat exchanger, which could be up to 30.59%.

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Investigation of the performance of modified organic Rankine cycles (ORCs) and modified trilateral flash cycles (TFCs) assisted by a solar pond

Cited by 39 publications

References 33 publications

An overview on subcritical organic rankine cycle configurations with pure organic fluids

An overview on subcritical organic rankine cycle configurations with pure organic fluids

A review on efficiency improvement methods in organic Rankine cycle system: an exergy approach

Thermo‐economic analysis and optimization of a combined Organic Rankine Cycle ( ORC ) system with LNG cold energy and waste heat recovery of dual‐fuel marine engine

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