Journal ArticleDOI
A review of researches on thermal exhaust heat recovery with Rankine cycle
TLDR
In this article, the Rankine cycle has been found to be the most favorite basic working cycle for thermodynamic exhaust heat recovery (EHR) systems and various different system configurations have been investigated.Abstract:
Internal combustion (IC) engines are the major source of motive power in the world, a fact that is expected to continue well into this century. To increase the total efficiency and reduce CO2 emissions, recently exhaust heat recovery (EHR) based on thermoelectric (TE) and thermal fluid systems have been explored widely and a number of new technologies have been developed in the past decade. In this paper, relevant researches are reviewed for providing an insight into possible system designs, thermodynamic principles to achieve high efficiency, and selection of working fluids to maintain necessary system performance. From a number of researches, it has been found the Rankine cycle (RC) has been the most favourite basic working cycle for thermodynamic EHR systems. Based on the cycle, various different system configurations have been investigated. Accepting a certain design and manufacture cost, a system based on heavy duty vehicle application can increase the total powertrain efficiency by up to 30% (based on NEDC driving condition). To achieve the highest possible system efficiency, design of systemic structure and selections for both the expander and the working fluid (medium) are critical.read more
Citations
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Journal ArticleDOI
A review of working fluid and expander selections for organic Rankine cycle
Junjiang Bao,Li Zhao +1 more
TL;DR: In this article, a comparison of pure and mixture working fluids' applications and a discussion of all types of expansion machines' operating characteristics for an effective organic Rankine cycle system is presented.
Journal ArticleDOI
A review on thermoelectric renewable energy: Principle parameters that affect their performance
Mohamed Hamid Elsheikh,Dhafer Abdulameer Shnawah,Mohd Faizul Mohd Sabri,Suhana Mohd Said,Masjuki Haji Hassan,Mohamed Bashir Ali Bashir,Mahazani Mohamad +6 more
TL;DR: In this paper, basic knowledge of thermoelectric materials and an overview of parameters that affect the figure of merit ZT are provided, as well as the prospects for the optimization and their applications are also discussed.
Journal ArticleDOI
Review of organic Rankine cycles for internal combustion engine exhaust waste heat recovery
TL;DR: In this paper, a review of the history of internal combustion engine exhaust waste heat recovery focusing on organic Rankine cycles is presented, with a focus on the selection of the cycle expander and working fluid, since they are regarded as having the largest impact on system performance.
Journal ArticleDOI
A review of the state of the science on wearable thermoelectric power generators (TEGs) and their existing challenges
TL;DR: In this article, the human body has been considered as a good source of heat to harvest electrical energy through wearable thermoelectric generators, which may become an alternative power generation technique compared to other conventional ones used for many wearable devices.
Journal ArticleDOI
A recent review of waste heat recovery by Organic Rankine Cycle
TL;DR: In this paper, a review of studies both theoretical and experimental on ORC usage for waste heat recovery and investigation on the effect of cycle configuration, working fluid selection and operating condition on the system performance have been developed during the last four years.
References
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Journal ArticleDOI
A Review of Organic Rankine Cycles (ORCs) for the Recovery of Low-grade Waste Heat
T.C. Hung,T.Y. Shai,S.K. Wang +2 more
TL;DR: In this article, the efficiencies of ORCs using cryogens such as benzene, ammonia, R11, R12, R134a and R113 as working fluids have been analyzed parametrically and compared.
Book
Fundamentals of Salt Water Desalination
TL;DR: In this article, the authors present the resources and need for water desalination, and present an economic analysis of the desalinization process, including factors affecting product cost and economic calculations.
Journal ArticleDOI
Effect of working fluids on organic Rankine cycle for waste heat recovery
TL;DR: In this article, an analysis of the performance of organic Rankine cycle (ORC) subjected to the influence of working fluids is presented, which reveals that the thermal efficiency for various working fluid is a weak function of the critical temperature.
Journal ArticleDOI
An examination of regenerative organic Rankine cycles using dry fluids
TL;DR: In this article, an analysis of regenerative organic Rankine cycles using dry organic fluids, to convert waste energy to power from low-grade heat sources is presented, and the evaluation for both configurations will be performed using a combined first and second law analysis by varying certain system operating parameters at various reference temperatures and pressures.
Journal ArticleDOI
A study of organic working fluids on system efficiency of an ORC using low-grade energy sources
TL;DR: In this article, the inlet condition of the working fluid entering turbine is assumed to be in saturated vapor phase and the main purpose is to identify suitable working fluids which may yield high system efficiencies in an organic Rankine cycle (ORC) system.
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