Investigation on an innovative cascading cycle for power and refrigeration cogeneration

Jiang, L.; Lu, H.T.; Wang, Ruzhu; Wang, Liwei; Gong, L.X.; Lu, Yiji; Roskilly, Anthony Paul

doi:10.1016/j.enconman.2017.04.086

Cited by 15 publications

(7 citation statements)

References 26 publications

(26 reference statements)

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“…Among the four main components of the conventional ORC, the expander is the most investigated due to the fact that it is related to the work output [30]. The work output acts as a positive numerator when calculating thermal efficiency [31]. A variety of expanders have been assessed to attempt improving thermal performance, e.g., scroll expander [32,33], piston expander [34], rotary expander [35], screw expander [36,37] and radial turbine [38].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Small-Scale Organic Rankine Cycle Systems for Solar Energy Utilisation

Wang

Jiang

et al. 2019

Energies

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Small-scale organic Rankine cycle (ORC) systems driven by solar energy are compared in this paper, which aims to explore the potential of power generation for domestic utilisation. A solar thermal collector was used as the heat source for a hot water storage tank. Thermal performance was then evaluated in terms of both the conventional ORC and an ORC using thermal driven pump (TDP). It is established that the solar ORC using TDP has a superior performance to the conventional ORC under most working conditions. Results demonstrate that power output of the ORC using TDP ranges from 72 W to 82 W with the increase of evaporating temperature, which shows an improvement of up to 3.3% at a 100 °C evaporating temperature when compared with the power output of the conventional ORC. Energy and exergy efficiencies of the ORC using TDP increase from 11.3% to 12.6% and from 45.8% to 51.3% when the evaporating temperature increases from 75 °C to 100 °C. The efficiency of the ORC using TDP is improved by up to 3.27%. Additionally, the exergy destruction using TDP can be reduced in the evaporator and condenser. The highest exergy efficiency in the evaporator is 96.9%, an improvement of 62% in comparison with that of the conventional ORC, i.e., 59.9%. Thus, the small-scale solar ORC system using TDP is more promising for household application.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Small-Scale Organic Rankine Cycle Systems for Solar Energy Utilisation

Wang

Jiang

et al. 2019

Energies

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“…Also, the ORC cycle can be integrated with sorption refrigeration systems . 135,[138][139][140][141][142] Lu et al 138 proposed a novel ORC integrated into solid sorption technology using waste heat from the coolant and the exhaust system of an internal combustion engine. They analyzed the cogenenration of power and refrigeration by the waste heat recovery from a 4.5 Diesel engine.…”

Section: Integration Of Orc With Other Refrigeration Cyclesmentioning

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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“…Bao et al [35] believed that an ORC system without a pump can achieve a more compact and efficient arrangement, which can improve the system's net efficiency. Jiang et al [36] raised a cascade cycle of power and refrigeration, applying the pumpless ORC to the upper cycle and the adsorption refrigeration cycle to the lower cycle. Within the range of experimental parameters, the maximum power is 232 W and the maximum cooling capacity is 4.94 kW.…”

Section: Introductionmentioning

confidence: 99%

Investigating the System Behaviors of a 10 kW Organic Rankine Cycle (ORC) Prototype Using Plunger Pump and Centrifugal Pump

et al. 2020

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Based on a 10-kW organic Rankine cycle (ORC) experimental prototype, the system behaviors using a plunger pump and centrifugal pump have been investigated. The heat input is in the range of 45 kW to 82 kW. The temperature utilization rate is defined to appraise heat source utilization. The detailed components' behaviors with the varying heat input are discussed, while the system generating efficiency is examined. The exergy destruction for the four components is addressed finally. Results indicated that the centrifugal pump owns a relatively higher mass flow rate and pump isentropic efficiency, but more power consumption than the plunger pump. The evaporator pressure drops are in the range of 0.45-0.65 bar, demonstrating that the pressure drop should be considered for the ORC simulation. The electrical power has a small difference using a plunger pump and a centrifugal pump, indicating that the electric power is insensitive on the pump types. The system generating efficiency for the plunger pump is approximately 3.63%, which is 12.51% higher than that of the centrifugal pump. The exergy destruction for the evaporator, expander, and condenser is almost 30%, indicating that enhancing the temperature matching between the system and the heat (cold) source is a way to improve the system performance.

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Investigation on an innovative cascading cycle for power and refrigeration cogeneration

Abstract: Investigation on an innovative cascading cycle for power and refrigeration cogeneration.

Cited by 15 publications

References 26 publications

Comparative Analysis of Small-Scale Organic Rankine Cycle Systems for Solar Energy Utilisation

Comparative Analysis of Small-Scale Organic Rankine Cycle Systems for Solar Energy Utilisation

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

Investigating the System Behaviors of a 10 kW Organic Rankine Cycle (ORC) Prototype Using Plunger Pump and Centrifugal Pump

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