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TABLE OF CONTENTS

COVER PAGE

TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGE

 

ABSTRACT

LIST OF FIGURES

LIST OF TABLES

https://rufortouthee.com/4/7692130

CHAPTER ONE

1.0   Introduction

1.1   Statement of Problem

1.2   Objective of Study

1.3   Significance of Study

1.4   Scope of Study

1.5   Methodology

 

CHAPTER TWO

2.0   Literature Review

2.1   History of Air Conditions

2.2   Basic Air Conditioning Terminologies

2.3   Operating of Window Air Conditioning Systems

2.4   Refrigeration Cycle of Window Air Conditioning System

2.5   Major Components of Air Conditioning System

2.6   Common Refrigerants and their properties

CHAPTER THREE

3.0   Psychrometric and Calculations for Air Conditioning Design

3.1   Calculations for Air Conditioning Design

3.2   Application of psychrometric to Air Conditioning Design

3.3   Design Construction Process

CHAPTER FOUR

4.1   Factors Affecting the Performance of window Air Conditioning System

4.2   Methods of improving the performance of window Air Conditioning System

4.3   Maintenance  of window Air Condition Systems

CHAPTER FIVE

Conclusion and Summary

REFERENCES

APPENDIX

 

 

 

 

 

 

 

 

 

LIST OF FIGURES

Figure 2.1        External and internal structure of the window Air Conditioning Unit

Figure 2.2        Internal structure of a window Air Conditioning Unit showing its Refrigeration Cycle

Figure 2.3        A simple stylized diagram of the Refrigeration Cycle

Figure 2.4a       Ideal vapour Compressions Cycle

Figure 2.4b      T-S diagram showing the idea vapour Compression Cycle

Figure 2.5        Inner view of the window Air Conditioner showing the major components of the Air conditioner

Figure 2.6        Modern R-22 reciprocating refrigeration compressor

Figure 2.7        Schematic diagram of the reciprocating compressor

Figure 2.8        Window Air Conditioning Condenser

Figure 2.9        Expansion Valve

Figure 10         Evaporator coil

Figure 2.11      Air filter

Figure 3.1        Showing the variables in a typical psychometric chart for any given point.

Figure 3.2        A bridge ASHRAE psychrometric chart

Figure 3.3        Psychrometric chart showing scale of Moisture content and Dry-Bulb temperature

Figure 3.4        Showing the Design condition of window Air Conditioning Unit

Figure 3.5        Ashrae psychrometric chart for R-22 refrigerant

Figure 3.6        Pressure-Enthalpy (p-h) and termperature- Entropy (t-s) of vapour compression  refrigeration system

Figure 3.7        Casing of the window Air Condition Unit

Figure 3.8        Exploded view of the window Air Conditioning Unit

 

LIST OF TATBLES

Table 1             Property of commonly used Refrigerants

Table 2             Performance of commonly used Refrigerants

Table 3             Percentage proportion of the various components of Dry Air

Table 4             Showing the required capacity per room size

ABSTRACT

The working principles of a window air conditioning system was described with the mode of operationg of the refrigeration cycle and its construcion.  The aim of every window Air conditioning system is to achieve cooling.  Change of temperature system were discussed with the methods of improving the performance of th window Air Conditioning Unit for better efficiency.  This work simply explains how the performance of the window Air Conditioning system can be improved and why it is more economical to use the window air conditioning system than split Unit Air Conditioning system.

 

 

 

CHAPTER ONE

INTRODUCTION

1.1   STATEMENT OF PROBLEM

The need of adequate supply of comfortable environment in our homes and industries cannot be overemphasized. Due to our temperature climate, there is need for the improvement of home and office working conditions by the use of Air Conditioning Systems.

1.2   OBJECTIVE OF THE STUDY

The purpose of this study is to reveal the method of improving the performance of window air conditioning system and how its maintenance can be carried out property to provide comfort to the occupants and patrons of the conditioned space, to identity the factors contributing to poor performance of air conditioning system and how to improve the economic life span of the unit.

 

1.3   SIGNIFICANCE OF STUDY 

The relevance of this study is to proffer ways to improve the performance of window air conditioning system with a view to establishing a measure of remedy.

1.4   SCOPE OF STUDY 

The project work is based on the cooling system of window air conditioning system and how its performance can be improved.

1.5   METHODOLOGY

The methods adopted for the purpose of this research work were purely analytical with sources of information from various forms of the modern media like the internet, encyclopedia and the Enugu State University of Science and Technology library.

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