Results 151 to 160 of about 1,680,915 (216)
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International Journal of Refrigeration, 1999
Abstract In a recent study, it was shown by the authors that perfect glide matching of heat transfer fluid and the refrigerant is difficult in condensers and evaporators for many zeotropic mixtures and also that pinch points can occur in both the condensers and evaporators due to the non-linear variation of enthalpy during phase change.
G Venkatarathnam, S Srinivasa Murthy
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Abstract In a recent study, it was shown by the authors that perfect glide matching of heat transfer fluid and the refrigerant is difficult in condensers and evaporators for many zeotropic mixtures and also that pinch points can occur in both the condensers and evaporators due to the non-linear variation of enthalpy during phase change.
G Venkatarathnam, S Srinivasa Murthy
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Boiling heat transfer of new zeotropic mixtures
2019The aim of the present work is to investigate the heat transfer performance of non-azeotropic ternary low global warming potential (GWP) mixtures when vaporizing inside two channels: a 8,0 mm inner diameter tube and a 0,96 mm inner diameter channel. The tested mixtures are R455A, which is a ternary blend of R32, R1234yf and R744 (21,5/75,5/3,0% by mass
Berto A. +4 more
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Synthesis of partially thermally coupled distillation flowsheets: Zeotropic mixtures
Theoretical Foundations of Chemical Engineering, 2011This article presents a detailed description of algorithms for generating the complete set of n-component zeotropic distillation flowsheets for sequences of simple two-section columns and for sequences including partially thermally coupled complexes. The description of the algorithms is oriented toward writing of implementing computer programs.
M. I. Skvortsova +2 more
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Distillation of Nonideal Ternary Zeotropic Mixtures in Two-Feed Columns
Theoretical Foundations of Chemical Engineering, 2002The continuous distillation of ternary nonideal zeotropic mixtures in two-feed columns is modeled. The results obtained are compared with the results of continuous distillation in one-feed columns. The topography of the field of relative-volatility coefficients is considered for various types of zeotropic systems.
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Thermodynamic analyses of ejector refrigeration cycle with zeotropic mixture
Energy, 2023Bo Liu +5 more
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STUDY OF ZEOTROPIC MIXTURES FOR COGENERATION IN THE CEMENT INDUSTRY
Procceedings of the 18th Brazilian Congress of Thermal Sciences and Engineering, 2020Thais Assis, Felipe Raul Ponce Arrieta
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Performance analysis of ejector refrigeration cycle with zeotropic mixtures
International Journal of Thermofluid Science and Technology, 2023Mohammed Mehemmai +3 more
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Transfer from Carnot to Lorenz Process Using Zeotropic Mixtures
2002The paper refers to the thermodynamic efficiency of the left hand cooling-heating process operating with a zeotropic mixture R407C that is compared to the process operating with a pure refrigerant R22. The measurements are performed on the experimental refrigerating system that enables operation according to Lorenz (zeotropic mixture application ...
Grozdek, Marino +2 more
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Methods for predicting the condensation heat transfer of zeotropic mixtures of refrigerants
2001Zeotropic mixtures of refrigerants could be advantageously utilised in some industrial applications. In fact, as their isobaric phase-change processes develop under non-isothermal conditions, the use of high temperature glide zeotropic mixtures allows an optimization of the temperature profiles in the heat exchangers and thus higher efficiency in some ...
CAVALLINI, ALBERTO +5 more
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