Vapor Compression Heat Pumps with Refrigerant Mixtures: With Refrigerant Mixtures

ISBN-13: 9780367454111 / Angielski / Miękka / 2020 / 328 str.

Reinhard Radermacher; Yunho Hwang

Opis

Although refrigerant mixtures have long been used in commercial products to improve environmental impact, there are few resources available that address the use of fluid mixtures in vapor compression systems.  Vapor Compression Heat Pumps with Refrigerant Mixtures provides a comprehensive background and thorough discussion of the thermodynamics of working fluid mixtures and their applications. It covers the fundamentals of various refrigeration cycles as well as a basic background in the thermodynamics related to these mixtures. It also provides important data on heat transfer and pressure drop correlations as well as critical operational issues related to refrigerant mixtures.

Spis treści

Introduction
Heat Pumping
Overview of Current Products
History of Working Fluids
Requirements for Working Fluids
Background of Environmental Concerns
References
Properties of Working Fluids
Thermodynamic Diagrams of Pure and Mixed Refrigerants
Analytical Treatment of Thermodynamic Properties
Ternary and Multicomponent Mixtures
References
Vapor Compression Cycle Fundamentals
The Carnot Cycle
Heat Pumps in the Context of Energy Conversion
The Ideal Vapor Compression Cycle
Differences between the Carnot Cycle and Vapor Compression Cycle
Realistic Vapor Compression Cycles
Lorenz Cycle
Vapor Compression Cycle with Zeotropic Mixtures in Thermodynamic Diagrams
The Matching of Temperature Glides
Methods for Comparing the Performance of Pure and Mixed Refrigerants
Simulation of the Vapor Compression Cycle
References
Methods for Improving the Cycle Efficiency
Measures of Incremental Efficiency Improvement
The Suction Line to Liquid Line Heat Exchanger
The Economizer
The Expander
The Three-Path Evaporator
References
Experimental Performance Measurements
Laboratory Breadboard Tests
Actual System Tests Experience
References
Refrigerant Mixtures in Refrigeration Applications
Single Evaporator Refrigeration Cycle
Dual Evaporator Refrigeration Cycle
Lorenz-Meutzner Cycle
Modified Lorenz-Meutzner Cycle Refrigerator
References
Refrigerant Mixtures in Heat Pump Applications
Capacity Control
R22 Replacement
References
Heat Transfer of Refrigerant Mixtures
Nucleate Pool Boiling Heat Transfer Coefficients
Flow Boiling Heat Transfer Coefficients
Correlations for Flow Boiling Heat Transfer
Pressure Drop During Evaporation
Condensation Heat Transfer Coefficients
Correlations for Flow Condensation Heat Transfer
Pressure Drop during Condensation
References
Operational Issues
Regulation
Refrigerant Recovery
Cycle Flushing
Refrigerant Mixing
Refrigerant Mass Fraction Measurement
Evacuating a System
Refrigerant Charge
Leak Checking
Mass Fraction Shifts
References
Index

O autorze

Radermacher\, Reinhard; Hwang\, Yunho