Investigation of an Innovative Cascade Cycle Combining a Trilateral Cycle and an Organic Rankine Cycle (TLC-ORC) for Industry or Transport Application

Yu, Xiaoli; Li, Zhi; Lu, Yiji; Huang, Rui; Roskilly, Anthony Paul

doi:10.3390/en11113032

Cited by 11 publications

(2 citation statements)

References 44 publications

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“…Wang et al [24] focused on comparison of subcritical ORC, dual-pressure (DORC) and transcritical ORC (TORC), adopting several different working fluids to recover low-grade energy. Yu et al [25] proposed a trilateral cycle combined with the organic Rankine cycle system to improve system performance.…”

Section: Introductionmentioning

confidence: 99%

A Hot Water Split-Flow Dual-Pressure Strategy to Improve System Performance for Organic Rankine Cycle

Wang

Yuan

2020

Energies

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The organic Rankine cycle (ORC) is widely used to recover industrial waste heat. For an ORC system using industrial waste hot water as a heat source, a novel hot water split-flow dual-pressure organic Rankine cycle (SFD-ORC) system is developed to improve the performance of the ORC. The maximum net power output was selected to compare three ORC systems, including basic ORC (B-ORC), conventional dual-pressure ORC (CD-ORC) and SFD-ORC. A genetic algorithm (GA) was used to optimize the parameters to search the maximum net power output of ORCs. The maximum net output power was taken as the standard of performance evaluation. The results show that, under the same hot water inlet temperature condition, the optimal hot water outlet temperature of B-ORC is much higher than that of CD-ORC and SFD-ORC, which indicates that less thermal energy could be utilized to convert to power in B-ORC. The optimal hot water temperature at the outlet of evaporator 1 in SFD-ORC is higher than that in CD-ORC, which means SFD-ORC could make more efficient use of the high-grade thermal energy of hot water. The SFD-ORC could obtain the highest net output power under the optimal parameter conditions, followed by the CD-ORC system, while the B-ORC has the lowest net output power. Moreover, with the increase in the hot water inlet temperature, the advantage of SFD-ORC becomes increasingly obvious. When the hot water inlet temperature is 90 °C, the net output power of SFD-ORC at is 6.22% higher than that of CD-ORC. The net output power of SFD-ORC at 130 °C increases to 9.7% higher than that of CD-ORC. The SFD-ORC presents better system performance and has great engineering application potential.

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Section: Introductionmentioning

confidence: 99%

A Hot Water Split-Flow Dual-Pressure Strategy to Improve System Performance for Organic Rankine Cycle

Wang

Yuan

2020

Energies

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“…The results revealed that the Trilateral Rankine cycle (TLC) can obtain a larger net output power than that of the ORC and Kalina systems. Yu et al [21] proposed an innovative cascade cycle combining a Trilateral Cycle and an ORC for industry or transport application to recover the exhaust thermal energy. Compared to the performance of a conventional dual-loop ORC system, the proposed novel cycle can improve the overall thermal efficiency and exergy efficiency by 33.7% and 31.2%, respectively [21].…”

Section: Introductionmentioning

confidence: 99%

Investigation of organic Rankine cycle integrated with double latent thermal energy storage for engine waste heat recovery

et al. 2019

Energy

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In this work, organic Rankine cycle (ORC) integrated with Latent Thermal Energy Storage (LTES) system for engine waste heat recovery has been proposed and investigated to potentially overcome the intermittent and fluctuating operational conditions for vehicle applications. A melting-solidification model has been established to investigate and compare the performance of twelve Phase Change Materials (PCMs) under different heat source conditions. Among the twelve PCMs, LiNO3-KCl-NaNO3 is identified as the optimal PCM for engine exhaust heat recovery. The performance of the ORC system integrating with different volume of LTES using LiNO3-KCl-NaNO3 under dynamic heat source simulating vehicle conditions is studied. Results illustrate the fluctuation of engine exhaust heat can be potentially overcome by using the proposed solution. The condition of 100 L LTES provides 30.4% larger total output work than that of 50 L LTES, while it is merely 1.5% larger than that of 90 L LTES.The performance of three different LTES-ORC scenarios are compared and results show ORC combining with double LTES delivers 17.2% larger total power output than that of single LTES (100 L) under the same operational conditions.

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Assessment of Ecofriendly Zeotropic Working Fluids in Organic Rankine Cycle for Renewable Energy Harvesting

Sharma,

Pan,

Kannaiyan

2024

Energy Tech

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The shift toward renewable energy has drawn significant attention to zeotropic mixtures in the organic Rankine cycle (ORC). However, synthetic zeotropic mixtures are detrimental to the environment due to high global warming potential. In this context, this study explores the potential of natural zeotropic binary mixtures as an alternative to synthetic zeotropic mixtures in a transcritical ORC system. The performance of two natural zeotropic mixtures and three synthetic zeotropic mixtures (hydrofluorocarbons, hydrofluoroolefins) are analyzed and compared using turbine inlet pressure and carbon dioxide (CO2) concentration as objective functions. The comprehensive thermodynamic analysis focuses on energy (first‐law) and exergy (second‐law) efficiencies, heat transfer, environmental performance, and economic aspects. The thermal and exergy efficiencies of the natural zeotropic mixture consistently outperform other mixtures by a maximum of 8% and 18%, respectively, for the conditions studied. The net power‐to‐environmental impact ratio of natural zeotropic mixture outweighs other zeotropic mixtures by more than 50%. The heat transfer analysis also favors natural zeotropic mixture at CO2 concentrations below 60% while maintaining cost parity with synthetic zeotropic mixtures. The results emphasize a holistic approach involving performance, heat transfer, environmental impact, and cost as parameters while choosing zeotropic mixtures for sustainable energy harvesting.

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Investigation of an Innovative Cascade Cycle Combining a Trilateral Cycle and an Organic Rankine Cycle (TLC-ORC) for Industry or Transport Application

Cited by 11 publications

References 44 publications

A Hot Water Split-Flow Dual-Pressure Strategy to Improve System Performance for Organic Rankine Cycle

A Hot Water Split-Flow Dual-Pressure Strategy to Improve System Performance for Organic Rankine Cycle

Investigation of organic Rankine cycle integrated with double latent thermal energy storage for engine waste heat recovery

Assessment of Ecofriendly Zeotropic Working Fluids in Organic Rankine Cycle for Renewable Energy Harvesting

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