EJECTORS AND THEIR USEFULNESS IN THE ENERGY SAVINGS

EJECTORS AND THEIR USEFULNESS IN THE ENERGY SAVINGS

CONTENTS

PREFACE

AUTHORS’ CONTACT INFORMATION

NOMENCLATURE

INTRODUCTION

Chapter I PERFORMANCE ANALYSIS OF AN EJECTOR REFRIGERATION SYSTEM

I.1. THEORY AND OPERATING ANALYSIS OF AN EJECTOR

I.2. EJECTOR REFRIGERATION SYSTEM

I.3. PERFORMANCE CHARACTERISTICS

I.3.1. Influence of the Operating Conditions

I.3.2. Influence of the Geometry

I.3.3. Empirical Correlations

I.3.4. Influence of the Fluid Nature

I.3.4.1. Pure Refrigerants

I.3.4.2. Azeotropic And Non-Azeotropic Binary Mixtures

I.3.4.3. Non-Azeotropic Binary Mixture with Distillation

Chapter II BEHAVIOR MODELING OF AN EJECTOR REFRIGERATION SYSTEM IN “DESIGN” AND “OFF-DESIGN” CONDITIONS

II.1. MODELING OF THE EJECTOR BEHAVIOR

II.1.1. Ideal Gas: Case of R142b and R600a

II.1.2. Real Gas: Case of R717

II.2. DESIGNING AND MODELING BEHAVIOR OF AN EJECTOR REFRIGERATION SYSTEM WITH THE WORKING FLUIDS R142b AND R600a

II.2.1. Design of the Different Components of an Ejector Refrigeration System

II.2.2. Behavior Modeling of the System Operating in Design and Off-Design Conditions

Chapter III PERFORMANCE IMPROVMENT OF AN EJECTOR REFRIGERATION SYSTEM AND COUPLING

III.1. HEAT REGENERATOR

III.2. ADDITION OF S MECHANICAL COMPRESSOR

III.2.1. The Booster Assisted Ejector System

III.2.2. The Hybrid Compressor-Ejector Refrigeration System

III.3. PERFORMANCE IMPROVMENT OF A CONVENTIONAL VAPOR COMPRESSION REFRIGERATION SYSTEM BY USING AN EJECTOR

III.4. COUPLING OF THE EJECTOR WITH VARIOUS SYSTEMS

III.4.1. Solar Jet Refrigeration System

III.4.2. Hybrid Ejector-Absorption Refrigeration System

Chapter IV ENERGETIC EFFICIENCY IMPROVMENT OF THE TRANSCRITICAL CO2 REFRIGERATION SYSTEM BY USING AN EJECTOR AS AN EXPANSION DEVICE

IV.1. INTRODUCTION

IV.2. STUDY OF AN EJECTOR-EXPANSION TRANSCRITICAL CO2 REFRIGERATION SYSTEM

IV.3. MATHEMATICAL MODEL

IV.4. RESULTS AND DISCUSSION

CONCLUSION

REFERENCES

INDEX

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