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Heat Pumps for Cold Climate Heating: Variable Volume Ratio Two-stage Vapor Compression Air Source Heat Pump Technology and Applications [Kõva köide]

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Edited by (Gree Electric Appliances, Inc., China)
  • Formaat: Hardback, 362 pages, kõrgus x laius: 234x156 mm, kaal: 453 g, 66 Tables, black and white; 225 Line drawings, black and white; 225 Illustrations, black and white
  • Sari: Heat Transfer
  • Ilmumisaeg: 20-Apr-2020
  • Kirjastus: CRC Press
  • ISBN-10: 0367465353
  • ISBN-13: 9780367465353
Teised raamatud teemal:
Heat Pumps for Cold Climate Heating: Variable Volume Ratio Two-stage Vapor Compression Air Source Heat Pump Technology and ApplicationsSuurem pilt
  • Formaat: Hardback, 362 pages, kõrgus x laius: 234x156 mm, kaal: 453 g, 66 Tables, black and white; 225 Line drawings, black and white; 225 Illustrations, black and white
  • Sari: Heat Transfer
  • Ilmumisaeg: 20-Apr-2020
  • Kirjastus: CRC Press
  • ISBN-10: 0367465353
  • ISBN-13: 9780367465353
Teised raamatud teemal:
Püsilink: https://www.kriso.ee/db/9780367465353.html
Märksõnad:

Air source heat pumps are mainly used for space heating, and have the advantages of environmental protection, energy saving, and comfort. Written by leading heat pump technology expert Hui Huang, this book summarizes the research and applications of variable volume ratio two-stage vapor compression air source heat pump technology, and its use in cold climate regions. This book can be used for reference by scientific researchers and engineers engaged in research on air source heat pump technology, product development and popularization; and by energy management and policy researchers. It will also be of value to undergraduate and graduate students studying these areas of technology.

Preface ix
Acknowledgments xi
Editor xiii
Contributors xv
1 Introduction
1(26)
1.1 Composition and Types of Air Source Heat Pumps
2(5)
1.1.1 Composition of air source heat pumps
2(1)
1.1.2 Types of air source heat pumps
3(4)
1.2 The Problems and Progress of Air Source Heat Pumps
7(14)
1.2.1 Problems of air source heat pumps
7(1)
1.2.2 Analysis on heating capacity reduction of air source heat pump
8(1)
1.2.3 Low temperature air source heat pump technologies
9(8)
1.2.4 Defrosting method
17(4)
1.3 Variable Volume Ratio Two-stage Compression Air Source Heat Pump Technology
21(6)
1.3.1 Limitations of existing air source heat pump technology
21(2)
1.3.2 Variable volume ratio two-stage compression air source heat pump
23(4)
2 Analysis of Variable Volume Ratio Two-stage Compression Heat Pump Cycle
27(82)
2.1 Basic Knowledge of Vapor Compression Heat Pump Cycle
28(9)
2.1.1 Reverse Carnot cycle
28(2)
2.1.2 Vapor compression heat pump cycle
30(7)
2.2 Categories and Basic Principle of Two-stage Compression Heat Pump Cycle
37(8)
2.2.1 Categories of two-stage compression interstage vapor injection heat pump cycle
38(6)
2.2.2 Basic principle of two-stage compression two-step throttling interstage incomplete cooling cycle
44(1)
2.3 Thermodynamic Characteristics Analysis of Two-stage Compression Heat Pump Cycle
45(35)
2.3.1 Theoretical model and calculation method of two-stage compression cycle
46(4)
2.3.2 Calculation and analysis of optimal volume ratio
50(5)
2.3.3 Influences of thermodynamic parameters on the performance of the two-stage compression cycle?
55(12)
2.3.4 Influences of volume ratio on the performance of the two-stage compression cycle
67(3)
2.3.5 Influence analysis of refrigerants
70(5)
2.3.6 Influence analysis of vapor injection with liquid
75(2)
2.3.7 Optimal intermediate pressure for two-stage compression cycle
77(3)
2.4 Determination of the Volume Ratios of the Two-stage Compressor with Variable Volume Ratio
80(18)
2.4.1 Determination of volume ratios
81(16)
2.4.2 Determination of cylinder working volume of two-stage compressor with variable volume ratio
97(1)
2.5 Theoretical Analysis of Intermediate Pressure of Two-stage Compression Cycle
98(11)
2.5.1 Intermediate pressure without interstage vapor injection
99(4)
2.5.2 Influence of vapor injection on intermediate pressure
103(2)
2.5.3 Analysis of the relationship between intermediate pressure and vapor injection parameters
105(4)
3 Triple-cylinder Two-stage Compressor with Variable Volume Ratio
109(92)
3.1 Operating Principle and Characteristics of the Rolling Piston Compressor
110(8)
3.1.1 Compression mechanism
112(1)
3.1.2 Working process
113(3)
3.1.3 Characteristics
116(2)
3.2 Operating Principle and Structure of a Two-stage Compressor with Variable Volume Ratio
118(10)
3.2.1 Operating principle and the switching of volume ratio
118(4)
3.2.2 Structure of two-stage compressor with variable volume ratio
122(6)
3.3 Thermodynamic Performance Analysis
128(16)
3.3.1 Working chamber volume and working pressure of the cylinder
128(4)
3.3.2 Volumetric efficiency of cylinder and its influencing factors
132(4)
3.3.3 Volumetric efficiency of compressor
136(1)
3.3.4 Displacement of compressor
137(2)
3.3.5 Indicated work and power
139(5)
3.4 Dynamic Analysis of Moving Mechanisms
144(28)
3.4.1 Motion and force analysis of motion mechanism for cylinder
144(14)
3.4.2 Force analysis of crankshaft
158(5)
3.4.3 Total resistance moment
163(3)
3.4.4 Dynamic balance of rotor
166(6)
3.5 Main Structural Parameters
172(4)
3.5.1 Structural parameters of cylinder
172(2)
3.5.2 Structural dimensions
174(2)
3.6 Lubrication and Influencing Factors
176(25)
3.6.1 The functions and requirements of lubricant oil and the selection method
177(7)
3.6.2 Oil discharge and controlling
184(5)
3.6.3 Oil return and controlling
189(2)
3.6.4 Hazard and control measures of liquid return
191(10)
4 Basic Principles of System Control
201(48)
4.1 Control Method of Throttling Module
203(28)
4.1.1 Throttling control methods for the two-stage compression one-step throttling interstage incomplete cooling heat pump system
204(7)
4.1.2 Throttling control methods for the two-stage compression two-step throttling interstage incomplete cooling heat pump system
211(20)
4.2 Control Method of Compression Module
231(18)
4.2.1 Control strategy in startup phase
231(5)
4.2.2 Control strategy in operation phase
236(6)
4.2.3 Defrosting operation control strategy
242(4)
4.2.4 Control strategy of oil return operation
246(3)
5 Optimization Analysis of Low Temperature Air Source Heat Pump System
249(22)
5.1 Optimization Analysis of Electronic Expansion Valve
250(9)
5.1.1 General mass flow rate correlation of electronic expansion valve
250(2)
5.1.2 Optimization of first-step and second-step electronic expansion valves for two-stage compression two-step throttling cycle
252(3)
5.1.3 Optimization of main and branched electronic expansion valves for two-stage compression one-step throttling cycle
255(4)
5.2 Optimization Analysis of Heat Exchanger
259(7)
5.2.1 Analysis of refrigerant thermophysical property
259(2)
5.2.2 Simulation analysis of fm-and-tube heat exchanger
261(5)
5.3 Optimization Analysis of Suction Pipe
266(5)
6 Low Temperature Air-to-Air Heat Pump
271(54)
6.1 Split-type Room Air conditioner of Air Source Heat Pump Type
272(18)
6.1.1 System solution
272(1)
6.1.2 System control strategy
273(7)
6.1.3 System performance comparison
280(10)
6.2 Mini Variable Refrigerant Flow Multi-split Heat Pump
290(11)
6.2.1 System solution
292(1)
6.2.2 System control strategy
293(1)
6.2.3 Performance comparison analysis
293(8)
6.3 Variable Refrigerant Flow Multi-split Heat Pump
301(13)
6.3.1 System solution
301(1)
6.3.2 System configuration
301(1)
6.3.3 System control strategy
301(8)
6.3.4 Performance comparison analysis
309(5)
6.4 Modular Variable Refrigerant Flow Multi-split Heat Pump
314(11)
6.4.1 System solution
314(1)
6.4.2 Compressor capacity control strategy
314(2)
6.4.3 Oil-balancing control strategy
316(1)
6.4.4 Subcooling control strategy
317(4)
6.4.5 Defrosting control strategy
321(4)
7 Low Temperature Air-to-Water Heat Pump
325(26)
7.1 Air Source Heat Pump Water Heating System
326(5)
7.1.1 System configuration
326(1)
7.1.2 Indoor terminals
327(4)
7.2 Household Low Temperature Air Source Heat Pump (Water Chilling) Packages
331(3)
7.2.1 System solution
332(1)
7.2.2 Outlet water temperature
333(1)
7.3 System Control Strategy
334(8)
7.3.1 System configuration
334(1)
7.3.2 Intermediate pressure control
334(3)
7.3.3 Vapor injection
337(3)
7.3.4 Two-cylinder and triple-cylinder operation modes
340(2)
7.4 System Performance Comparison
342(9)
7.4.1 Compressor parameters
343(1)
7.4.2 Comparison analysis
344(7)
Bibliography 351(6)
Index 357
Hui Huang currently serves as the Executive President of Gree Electric Appliances, Inc. of Zhuhai, China, the world's largest manufacturer of such products. Mr. Huang obtained his Master's Degree from Central South University, in Mechanical Engineering. His engineering specialties are refrigeration, air conditioning, heat pumps, compressors, and motors, and he served as the Director of the National Engineering Research Center of Green Refrigeration Equiment. Mr. Huang has received numerous honors and awards for his accomplishments in these technical elds. He is the author of three books, and has been involved with eleven national-level projects.