How Do I Choose the Best Refrigeration Courses?

This book mainly introduces the codes and standards commonly used in the design of air-conditioning and refrigeration engineering, and details the load calculation, the determination of the air-conditioning method, the design of the wind system, the design of the air-conditioning water system, the determination of the heat and cold source scheme, the design of the refrigeration unit, and the construction drawings of the air-conditioning and refrigeration. Design and other content, and give a design example of a typical building air-conditioning project and the refrigerating and air-conditioning refrigeration design software with intelligent learning function that is mainly used for curriculum design, for readers' reference when designing.

Air Conditioning and Refrigeration Course Design Guide

Publisher:

This book focuses on students' basic engineering training and reflects

1 Introduction 1

11 Purpose and Content of Air Conditioning and Refrigeration Course Design 1

111 Purpose of Air Conditioning and Refrigeration Course Design 1

112 Contents of Course Design for Air Conditioning and Refrigeration 1

113 Evaluation of Course Design Results 4

12 Air-conditioning and Refrigeration Course Design Procedures 4

121 Familiar with design tasks 4

122 Collect design data and design basis 4

123 Learning Design Specifications 4

124 Scheme Design 5

125 Preliminary Design 5

126 Preparation of design specifications 5

127 Construction drawing design 6

1.3 Design Requirements for Air Conditioning and Refrigeration Courses 6

131 Basic requirements 6

132 Design specification requirements 6

133Requirement of construction drawing 7

2Common specifications and standards for air conditioning and refrigeration engineering design 9

21 Relevant Part of Design Code for Heating Ventilation and Air Conditioning (GB 50019-2003) 9

211 General description and indoor and outdoor calculation parameters 9

212Air conditioning 11

213 Air conditioning cold and heat source 22

214 Monitoring and Control 29

215 Noise Reduction and Vibration Reduction 33

2.2 Design Standards for Thermal and Air-conditioning Energy Saving of Tourist Hotel Buildings (GB 50189-93) 34

221 Terminology 34

222 Basic Provisions 34

223 Building Envelopes 35

224 Air Conditioning 35

23 HVAC sections in various building design codes 38

231 The HVAC part in the code for hotel building design (JGJ 62-90) 38

232 The HVAC part of the Code for Design of Office Buildings (JGJ 67-89) 39

233 The HVAC part of the code for store building design (JGJ 48-88) 40

Section 234 of the Code for the Design of Catering Buildings (JGJ 64-89) concerning HVAC

235 General HVAC Building Design Code (JGJ 49-88) 42

236 The HVAC part of the Code for Architectural Design of Computer Room (GB 50174-93) 42

3 Air-conditioning load calculation 45

3.1 Selection of indoor design parameters and outdoor meteorological parameters 45

311 Choice of interior design parameters 45

312 Selection of Outdoor Meteorological Parameters 46

32 Cooling load calculation 47

321 Overview 47

322 Cold Load of Envelope Structure 47

323 Cooling load due to indoor heat radiation 57

33 Calculation of Winter Thermal Load in Air-conditioned Room 58

331 Calculation of Basic Heat Consumption of Envelope Structure 59

332 Correction of heat consumption of envelope structure 60

3.4 Calculation of Wet Load

341 Human Wet Load 61

342 Wet load of chemical reaction 61

343 Wet load of sink, equipment, food 61

3.5 Estimate of Air Conditioning Load

351 Estimation of Summer Cold Load Index of Air Conditioning System 62

352 Winter Thermal Load Estimation of Air Conditioning System 62

4 Determination of air-conditioning mode 64

41 Characteristics and Classification of Civil and Industrial Buildings 64

411 Characteristics and Classification of Civil Buildings 64

412 Characteristics and Classification of Industrial Buildings 65

42 Classification of Air Conditioning System 65

421 Classification according to the installation of air treatment equipment 65

422 According to the media used to bear the indoor air-conditioning load 66

423 Classification of air source processed by air-conditioning system 67

424 Other classification methods 67

43 Determination and System Division of Air Conditioning 67

431 Factors determining the air conditioning system plan 67

432 Choice of various air conditioning methods 68

433 Division and Division of Central Air Conditioning System

44 Air Conditioning in a Typical Room 69

441 Room 69

442 Office 70

443 Apartment 71

444 Restaurant, multifunctional hall 71

445KTV Song and Dance Hall 72

446 Recreation Center 72

447 Shopping Center 73

448 Theater Building 74

449 Shared Space 75

4410 Multifunctional Indoor Stadium 75 ^[2]

5 Air-conditioning wind system design 77

51 Composition and Function of Air Conditioning Air System 77

52 Classification of air-conditioning wind system 78

521 Classification according to the nature of the air treated 78

522 Classification by whether air flow changes 78

523 Classification by the number of air supply parameters 79

524 Classification according to wind speed in the air duct 79

53 Wind System Design Process 79

531 Primary air return system 79

532 Secondary return air system 81

533 fan coil and fresh air system 82

5.4 Design of Variable Air Volume System (VAV) 84

541 Characteristics of Variable Air Volume System 84

542 End Device 85

543 Design and Calculation of Variable Air Volume System with Single Air Duct 85

544 Variable Air Volume System Design 86

55 duct design 87

551 Duct classification and specifications 87

552 The layout of air ducts 88

553 Hydraulic calculation of air duct 88

554 Additional air volume and pressure 91

56 Tuyere and Airflow Design 91

561 Air supply method and scope of application 91

562 air outlet 92

563 Return air outlet 94

564 Common Airflow Organization Forms and Their Design Calculations

57 Design of Air Conditioning, Ventilation and Air Flow in a Typical Room

571 Determination of the plan 103

572 Selection of Fan Coil 105

6 Air-conditioning water system design 106

61 Classification and Composition of Air Conditioning Water System 106

611 Classification of air conditioning water system 106

612 Composition of air conditioning water system 108

62 Division of air conditioning water system 109

621 zoning method 109

622 Water System Zoning Plan 110

63 Design of Chilled Water System 110

631 The form of the system 110

632 Connection mode of chiller and circulating water pump 112

633 Water system accessories 112

64 Cooling Water System Design 113

641 Cooling water circulation system 114

642 Cooling Tower 114

643 Cooling water volume 116

644 Choice of cooling tower 116

645 Cooling water system 119

646 Typical diagram of air-conditioning circulating cooling water system 119

65 Condensate drainage system of air treatment equipment 120

651 Key Points for Design of Condensate Drainage System 121

652 Calculation of the amount of condensed water 121

653 Determination of condensate pipe diameter 122

66 Pipelines, pumps and accessories 123

661 Water System Pipeline 123

662 Water Pump 124

663 Attachment 126

67 Constant pressure of water system and its equipment 126

671 Constant pressure of expansion water tank 127

672 Constant pressure of make-up water pump 128

673 Constant pressure of pressure tank 128

7 Air Treatment Equipment Design and Selection 130

71 Air Conditioning Unit and Selection 130

711 Horizontal Combined Air Conditioning Unit 130

712 Ceiling Air Conditioning Unit 130

713 Cabinet Air Conditioning Unit 131

714 Fan coil unit 132

72 Selection and Check of Table Cooler 133

73 Air heater selection and check 135

8 Determination of cold and heat source solutions 138

81 Air-conditioning cold source device 138

811 Classification of air conditioning cold source 138

812 Characteristics of Common Air Conditioning Cold Sources 138

82 Determination of Air Conditioning Cold Source Scheme 142

821 Factors to Consider 142

822 Comprehensive Economic Analysis of Chillers 143

823 Comprehensive Evaluation of Cold Source SolutionFUZZY Comprehensive Evaluation 144

83 Air conditioning heat source 146

831 Classification by heat source properties 147

832 Classification by heat source device 147

84 Design and Arrangement of Refrigerator Room 148

841 Determination of refrigeration equipment capacity 148

842 Determination of Refrigerant Type and Refrigeration System Form 149

843 Determination of the number of refrigerators 149

844 Choice of Location of Refrigerator Room 149

845 Design of Refrigeration Room 150

85 Design Example of Refrigerator Room 150

9 Refrigeration Unit Design 156

91 Determination of Refrigeration Cycle and Its Thermal Calculation 156

911 Determination of refrigeration cycle form 156

912 Choice of Refrigerant 156

913 Thermodynamic Calculation of Actual Cycle of Vapor Compression Refrigeration 158

92 Selection of Refrigeration Compressor 160

921 Piston Refrigeration Compressor 160

922 Screw Refrigeration Compressor 162

923 Centrifugal Refrigeration Compressor 162

93Condenser and evaporator design 163

931 condenser design 163

932 Evaporator Design 164

94 Selection of Throttle Mechanism and Auxiliary Equipment 168

941 Throttling mechanism 168

942 Auxiliary Equipment 168

10 Air Conditioning and Refrigeration Construction Drawing Design 171

10.1 Standards for Engineering and HVAC Engineering Drawing 171

1011 Unified Standard for Building Construction Drawing (GB / T 500012001) 171

1012 Standard for Drawing of Heating Ventilation and Air Conditioning (GB / T 50114-2001) 181

102 Basic requirements and characteristics of construction drawings for air-conditioning projects 188

103 Composition of Air Conditioning Engineering Construction Drawings 189

1031 Textual Explanation Section 189

1032 Drawing Section 190

11 Air Conditioning and Refrigeration Course Design Software 197

111 Software Functions and Features 197

11.2 Software Instructions 198

1121 Air-conditioning load calculation module 198

1122 Inquiry of Thermophysical Properties of Humid Air 202

1123 Airflow tissue calculation module 204

1124 Air duct and water system design calculation module 206

1125 Refrigeration System Thermal Calculation Module 207

1126 Database Module of Air Conditioning and Refrigeration Equipment 207

1127 Calculation module of thermophysical properties of working medium 208

12 Air conditioning and refrigeration engineering design examples 210

121 Design Example-Air Conditioning Engineering Design of a Comprehensive Building 210

1211 Building Overview 210

1212 Design basis 210

1213 indoor and outdoor design parameters 210

1214 Air-conditioning cold and heat source 210

1215 Air Conditioning Water System 212

1216 Air Conditioning Wind System 212

1217 Drawing 212

122 Design Example 2 Design of Refrigeration Room in a Building 212

1221 Project Overview 212

1222 Drawing 213

1223 Legend 213

References 218 ^[2]