Journal ArticleDOI
An improved CO2-based transcritical Rankine cycle (CTRC) used for engine waste heat recovery
TLDR
In this paper, an improved CTRC system containing both a preheater and regenerator (PR-CTRC) was introduced for recovering waste heat in exhaust gas and engine coolant of an engine, and compared its performance with that of the BCTRC system and also with the traditional excellent organic Rankine Cycle (ORC) systems using R123 as a working fluid.About:
This article is published in Applied Energy.The article was published on 2016-08-15. It has received 110 citations till now. The article focuses on the topics: Organic Rankine cycle & Waste heat.read more
Citations
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Journal ArticleDOI
A review of modified Organic Rankine cycles (ORCs) for internal combustion engine waste heat recovery (ICE-WHR)
TL;DR: In this article, relevant researches of these modified ORCs were reviewed and divided into four parts to approach the ideal cycle, which was defined as the best matching cycle to engine waste heat.
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Investigation of organic Rankine cycles with zeotropic mixtures as a working fluid: Advantages and issues
TL;DR: In this article, the authors focus on zeotropic refrigerant mixtures made of two or three refrigerants instead of a single working fluid, and the main advantages of this system are increased exergy efficiency and decreased irreversibility in the evaporator and condenser, where the isothermal phase change of pure refrigerant would not match the temperature profile of the heat source and heat sink.
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Perspective of S−CO2 power cycles
TL;DR: In this paper, the research and development of S-CO2 cycles are analyzed from two aspects: (i) the system design and analysis and (ii) energy transfer/conversion mechanisms and key components development.
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A review of waste heat recovery from the marine engine with highly efficient bottoming power cycles
TL;DR: In this article, the authors present an extensive review of waste heat recovery from the marine engine with highly efficient bottoming power cycles which include the steam Rankine cycle, organic Rankine Cycle, Kalina cycle and CO2-based power cycles.
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Potential of the transcritical Rankine cycle using CO2-based binary zeotropic mixtures for engine’s waste heat recovery
TL;DR: In this paper, the authors investigated the performance improvements of transcritical Rankine cycle using CO2 mixtures for the waste heat recovery of engine by using the Peng-Robinson equations of states.
References
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Book
Process heat transfer
TL;DR: In this article, the authors provide fundamental instruction in heat transfer while employing the methods and language of industry using a course given at the Polytechnic Institute of Brooklyn over a period of years.
Journal ArticleDOI
Performance comparison and parametric optimization of subcritical Organic Rankine Cycle (ORC) and transcritical power cycle system for low-temperature geothermal power generation
TL;DR: In this article, an optimization procedure was conducted with a simulation program written in Matlab using five indicators: thermal efficiency, exergy efficiency, recovery efficiency, heat exchanger area per unit power output (APR), and the levelized energy cost (LEC).
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Internal Combustion Engine (ICE) bottoming with Organic Rankine Cycles (ORCs)
Iacopo Vaja,Agostino Gambarotta +1 more
TL;DR: In this article, a specific thermodynamic analysis in order to efficiently match a vapour cycle to that of a stationary Internal Combustion Engine (ICE) is presented. But the analysis is limited to the case of a single-cylinder engine.
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Two-phase pressure drop, boiling heat transfer, and critical heat flux to water in a small-diameter horizontal tube
TL;DR: In this paper, two-phase pressure drop, boiling heat transfer, and critical heat flux to water were studied in a small horizontal tube of 2.98mm inside diameter and 0.91m heated length.
Journal ArticleDOI
Analysis of a carbon dioxide transcritical power cycle using a low temperature source
TL;DR: In this article, a detailed analysis of a carbon dioxide transcritical power cycle using an industrial low-grade stream of process gases as its heat source is presented, which is divided in four steps: energy analysis, exergy analysis, finite size thermodynamics and calculation of the heat exchangers' surface.