Journal ArticleDOI
Review and future trends of supercritical CO2 Rankine cycle for low-grade heat conversion
TLDR
In this article, a review of the supercritical CO2 Rankine cycle and its various working fluids, heat sources, heat sinks and analysis approaches, and performance analyses and optimization of various supercritical CRS cycle configurations along with comparison with other working fluids are discussed.Abstract:
Due to personal and environmental safeties along with various advantages, CO2 became a potential choice as working fluid for both heat engine and heat pump cycles. Because of better temperature glide matching between heat source and working fluid during heat addition leading to no pinch limitation, CO2 has been proposed recently as working fluid for supercritical Rankine cycle with low grade heat sources. Supercritical Rankine cycle and its various working fluids, heat sources, heat sinks and analysis approaches, and performance analyses and optimization of various supercritical CO2 Rankine cycle configurations along with comparison with other working fluids, prototype development, component design and challenges are well-grouped and discussed. Supercritical CO2 Rankine cycle is superior to both steam and organic Rankine cycles, whereas yields mix results compared to other fluids in supercritical Rankine cycle with system compactness and environmental benefit as unique advantages. Future research pathways regarding to system components, experimentation, operating parameter optimizations, control strategies, etc. are discussed as well. Although, there is no supercritical CO2 Rankine cycle in operation up to now, it is becoming a future pathway due to its promising research outcomes and this review will be useful for further progress.read more
Citations
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Journal ArticleDOI
Supercritical carbon dioxide cycles for power generation: A review
TL;DR: In this paper, the authors present a review of the works published in the area of sCO2 power cycles and provide a comparison of the claimed performance of each one of them, based on the values declared in the original papers.
Journal ArticleDOI
The development technology and applications of supercritical CO2 power cycle in nuclear energy, solar energy and other energy industries
TL;DR: In this paper, a detailed comprehensive study of the recent development trends of the supercritical CO2 power cycle and the different applications of S-CO2 power cycles in various energy industries, especially nuclear energy and solar energy, is presented.
Journal ArticleDOI
Exergoeconomic analysis of utilizing the transcritical CO2 cycle and the ORC for a recompression supercritical CO2 cycle waste heat recovery: A comparative study
Xurong Wang,Yiping Dai +1 more
TL;DR: In this paper, two combined cogeneration cycles are examined in which the waste heat from a recompression supercritical CO2 Brayton cycle (sCO2) is recovered by either a transcritical CO 2 cycle (tCO2), or an organic Rankine Cycle (ORC) for generating electricity.
Journal ArticleDOI
Review of supercritical CO2 technologies and systems for power generation
TL;DR: A review of the current state-of-the-art of sCO 2 power generation systems, with a focus on technical and operational issues, is provided in this article, where the authors discuss the current research and development status in the areas of turbomachinery, heat exchangers, materials and control system design with priority given to experimental prototypes.
Journal ArticleDOI
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.
References
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Journal ArticleDOI
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