Results 1 to 10 of about 1,315 (158)
Energies, 2022 This paper examines the exergy efficiency and exergy destruction rate of the R744/R404A cascade refrigeration system (CRS) using an internal heat exchanger in supermarkets according to various conditions affecting the system.
Min-Ju Jeon
doaj +3 more sources
The Characteristics of the Exergy Reference Environment and Its Implications for Sustainability-Based Decision-Making [PDF]
Energies, 2012 In the energy realm there is a pressing need to make decisions in a complex world characterized by biophysical limits. Exergy has been promoted as a preferred means of characterizing the impacts of resource consumption and waste production for the ...
Stephen Murphy +2 more
doaj +2 more sources
Characteristics and Applications of the Cold Heat Exergy of Liquefied Natural Gas
Energy Conversion and Management, 1999 Abstract A mathematical model for predicting the low temperature exergy, pressure exergy and total cold heat exergy of Liquefied Natural Gas (LNG) is developed in this paper. In the model, the liquid mixture densities are calculated by a shape factor Corresponding State method, Vapor–Liquid-Equilibrium data of LNG are predicted by an improved method ...
Hongtan Liu
exaly +2 more sources
International Journal of Energy Research, 2006 The technology ‘blast furnace—converter’ dominates at present in the production of steel all over the world. Therefore, the blast-furnace process is continuously being improved, among others, by raising the thermal parameters, such as temperature and oxygen-enrichment of the blast, as well as the addition of auxiliary fuels.
Wojciech Stanek
exaly +2 more sources
Energy Reports, 2022 Cold storage is an irreplaceable part of food cold chain. In the present study, a novel transcritical carbon dioxide two-stage compression/ejector refrigeration system for low-temperature cold storage is proposed to freeze and refrigerate food.
Dazhang Yang +3 more
doaj +3 more sources
Mathematical Model for Optimization of Heat Exchange Systems of a Refinery [PDF]
E3S Web of Conferences, 2020 The article is devoted to the issue of thermodynamic optimization of heat transfer systems. Optimization is carried out by an exergy pinch method. This method includes the advantages of exergy analysis and pinch method. Exergy analysis takes into account
Lebedev Vladimir Aleksandrovich +1 more
doaj +1 more source
Mathematical model for optimization of heat exchange systems [PDF]
E3S Web of Conferences, 2020 The article is devoted to the issue of thermodynamic optimization of heat transfer systems. Optimization is carried out by an exergy pinch method. This method includes the advantages of exergy analysis and pinch method. Exergy analysis takes into account
Lebedev Vladimir, Yushkova Ekaterina
doaj +1 more source
Ecological Indicators, 2023 Along with the growing demand and improving diet, the agricultural sector faces challenges in balancing resource consumption, environmental impacts and yields.
Hai Qi +5 more
doaj +1 more source
Exergy-economic analysis and evaluation method of park-level integrated energy system
Frontiers in Energy Research, 2022 The park-level integrated energy system (PIES) has been developing rapidly in recent years due to its economic and environmental advantages. PIES is a typical user-side energy supply system with multiple energy forms such as solar energy, electrical ...
Lili Mo +6 more
doaj +1 more source
Exergy pinch analysis of a furnace in a primary oil refining unit [PDF]
E3S Web of Conferences, 2019 The article considers the issue of thermodynamic optimization of heat power equipment. The solution to this problem allows one to increase the energy efficiency of heat systems by reducing the energy resources consumption.
Lebedev Vladimir +2 more
doaj +1 more source