Journal ArticleDOI
Performance analysis of two-stage compression transcritical CO2 refrigeration system with R290 mechanical subcooling unit
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TLDR
In this article, the thermal performance of a two-stage compression transcritical CO2 refrigeration system with R290 mechanical subcooling unit was evaluated under the optimal sub-cooling temperature and compressor discharge pressure.About:
This article is published in Energy.The article was published on 2019-12-15. It has received 36 citations till now. The article focuses on the topics: Subcooling & Coefficient of performance.read more
Citations
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Life cycle techno-enviro-economic assessment of dual-temperature evaporation transcritical CO2 high-temperature heat pump systems for industrial waste heat recovery
TL;DR: In this paper , the authors proposed three transcritical CO2 high-temperature heat pump systems (Ej-Evap2-A, Ej-Emp2-B, and EjEpp2-C) by introducing the technique of dualtemperature evaporation realized with an ejector for cascade heat absorption from the heat source.
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Thermo-economic assessment and optimization of a geothermal-driven tri-generation system for power, cooling, and hydrogen production
TL;DR: In this article , a tri-generation system is proposed, which consists of a modified Kalina cycle (MKC), an organic Rankine cycle (ORC), and a liquefied natural gas (LNG) subsystem, driven by a geothermal heat source.
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Preliminary study on the feasibility assessment of CO2 booster refrigeration systems for supermarket application in China: An energetic, economic, and environmental analysis
TL;DR: In this paper, the authors reveal the energy efficiency level of six CO2 BRS solutions under five typical Chinese climate conditions, as well as evaluate the application feasibility in Chinese supermarkets to inform manufacturers.
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Analysis of the optimal gas cooler pressure of a CO2 heat pump with gas bypass for hot water generation
TL;DR: In this paper, an experimental and numerical model-based approach for the estimation and control of the optimal heat rejection pressure in a one-stage transcritical CO2 heat pump equipped with an internal heat exchanger (IHX) and a liquid receiver is presented.
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A new heat supply strategy for CO2 capture process based on the heat recovery from turbine exhaust steam in a coal-fired power plant
TL;DR: In this paper, a new heat supply strategy for the CO2 capture process based on the heat recovery from turbine exhaust steam was proposed and evaluated, and the effects of reboiler duty, exhaust steam pressure, and re-boiler temperature on the thermodynamic performance of the plant station were discussed.
References
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Journal ArticleDOI
Revival of carbon dioxide as a refrigerant
TL;DR: In this article, the authors present some examples of how to revert to natural refrigerants: substances that are already present in our environment and which are known to be harmless, provided that a process to give competitive energy performance can be designed.
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A new, efficient and environmentally benign system for car air-conditioning
TL;DR: In this paper, the authors considered that the use of the old refrigerant carbon dioxide offers a key to the complete solution of the environmental problems in many areas of refrigeration usage, both from an environmental and practical point of view.
Journal ArticleDOI
Energy and exergy analysis of a steam power plant in Jordan
TL;DR: In this paper, the energy and exergy analysis of the Al-Hussein power plant in Jordan is presented, and the performance of the plant was estimated by a component-wise modeling and a detailed break-up of energy and energy exergy losses for the considered plant has been presented.
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The use of natural refrigerants: a complete solution to the CFC/HCFC predicament
TL;DR: The ideal refrigeration or heat pump cycle for a given purpose is defined by the boundary conditions of the application and is completely independent of the refrigerant used as mentioned in this paper, and the real cycle should approach the theoretical ideal as closely as practically possible.
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Exergy Analysis: Principles and Practice
Michael J. Moran,Enrico Sciubba +1 more
TL;DR: A brief survey of both exergy principles and the current literature of exergy analysis with emphasis on areas of application is provided in this article, where the authors provide a brief survey.