Thermodynamic analysis of hybrid Rankine cycles using multiple heat sources of different temperatures

Yue, Ting; Lior, Noam

doi:10.1016/j.apenergy.2018.04.002

Cited by 10 publications

(7 citation statements)

References 20 publications

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“…This can be reached by increasing the thermal efficiency of the applied cycle and/or by increasing the efficiency of its individual components. In the case of the most recent and most technologically advanced large steam power plants, the efficiencies of their machinery and equipment are very high and we cannot expect that they can be further significantly increased [23][24][25][26][27][28]. For instance, the maximal efficiency of boilers ranges within 92-95%, high-pressure turbines 88-94%, medium-pressure turbines 90-97%, low-pressure turbines 88-95%, electric current generators 98.5-99%, and water pumps-about 85%.…”

Section: Problem Posingmentioning

confidence: 99%

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

et al. 2019

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An analysis was carried out for different thermodynamic cycles of power plants with air turbines. Variants with regeneration and different cogeneration systems were considered. In the paper, we propose a new modification of a gas turbine cycle with the combustion chamber at the turbine outlet. A special air by-pass system of the combustor was applied and, in this way, the efficiency of the turbine cycle was increased by a few points. The proposed cycle equipped with a regenerator can provide higher efficiency than a classical gas turbine cycle with a regenerator. The best arrangements of combined air–steam cycles achieved very high values for overall cycle efficiency—that is, higher than 60%. An increase in efficiency to such degree would decrease fuel consumption, contribute to the mitigation of carbon dioxide emissions, and strengthen the sustainability of the region served by the power plant. This increase in efficiency might also contribute to the economic resilience of the area.

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Section: Problem Posingmentioning

confidence: 99%

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

et al. 2019

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“…The same steam turbine power block has been implemented for both Fresnel and PTC technologies, operating in an optimized nominal point in the range of temperatures demanded for these applications. This well-known thermodynamic model is solved, according to the desired design variables, following a state-of-the-art approach [44,45] in order to calculate the thermal power input required for delivering the resulting electricity power. This model has been validated successfully against real data supplied by the industry for different applications.…”

Section: Regenerative-reheat Rankine Cycle Based Power Block Modelmentioning

confidence: 99%

Innovative thermal storage strategies for Fresnel-based concentrating solar plants with East-West orientation

et al. 2018

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“…In recent years, the HEV market has been dominated by the power-split hybrid electric vehicle with the function of an electric continuously variable transmission (ECVT) [4,5]. Both Toyota Hybrid System (THS) and GM (General Motors Corporation) Advanced Hybrid System (AHS) adopt the power-split hybrid powertrain configuration scheme [6][7][8][9]. By introducing clutch to change the way of combination and connection between PG nodes and power resource components, the power-split hybrid powertrain configuration possesses multiple operating modes, which greatly increases the probability of high-efficient operation for the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Optimization Design and Analysis for a Single Motor Hybrid Powertrain Configuration with Dual Planetary Gears

Meng

Peng

et al. 2019

Applied Sciences

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To further improve the comprehensive operating performance of the single motor hybrid electric vehicle, a single motor hybrid powertrain configuration with dual planetary gears (SMHPC-2PG) design is proposed in this paper. By adopting a topology design method that characterizes the constraint relationship between power resource components and planetary gear (PG) nodes, all feasible configuration candidates based on the basic configuration scheme are systematically explored, and dynamic models of configuration candidates are automatically generated. The optimal fuel economy and dynamic performance for configuration candidates are simulated by applying the global optimal control strategy based on dynamic programming (DP). Results of this study demonstrate that SMHPC-2PG with excellent operating performance can be screened out by this method.

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Thermodynamic analysis of hybrid Rankine cycles using multiple heat sources of different temperatures

Cited by 10 publications

References 20 publications

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

Innovative thermal storage strategies for Fresnel-based concentrating solar plants with East-West orientation

Optimization Design and Analysis for a Single Motor Hybrid Powertrain Configuration with Dual Planetary Gears

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