ABSTRACT
Refrigeration is term used to denote the maintenance of a body at a temperature lower than that of its surroundings. The applications of refrigeration are many and varied. In addition to the common applications of refrigerationin the manufacture of ice, in the preservation of foods, in air-conditioning filed, and in the creation of skating rinks, the refrigeration effect is also used in the presentation of blood plasma, in the low-temperature treatment of metals and in the liquefaction of gasses. Each application requires a different temperature for the refrigerated space. This project adopts the basic principle of refrigeration to construct a portable deep freezer The historical development of refrigeration system was discussed along with types of refrigeration system, its impact in our life, how it works and so on. Materials for each component were carefully selected. troubleshooting was included in this report to guide the user on repair and maintenance procedures the total the length of the deep freezer is 99 0mm while the base of the bottom is 750mm, the cabinet cover is 1200mm and his side is 750mm. the special feature are aluminum, thermostat, evaporator pipe, drier cooling fan, polystyrene and TL danfos compressor while the cooling temperature is 125°f
TABLE OF CONTENT
Title page i
Approval page ii
Dedication iii
Acknowledgement iv
Abstract v
Table of Content vi
List of Tables ix
List of Figure x
CHAPTER ONE: Introduction
1.1 History of Refrigeration 1
1.2 Important of Refrigeration Application 2
1.3 Freezer 4
1.4 Impact of Life Cycle 5
1.5 Aims and Objectives 6
CHAPTER TWO: LITERATURE REVIEW
2.1 Absorption System of Refrigeration 7
2.2 Mechanism of Absorption system Process 8
2.3 Vapor Compression System 9
CHAPTER THREE: ANALYSIS OF REFRIGERATION SYSTEM AND CHOICE OF PROJECT AS BEST
3.0 The Cycle Operation of Vapor Compression 12
3.1 Types of Gas Compressor 13
3.2 Thermodynamic Analysis of the System 14
3.3.1 The Compressor 17
3.3.2 The Condenser 18
3.3.3 The Evaporator 20
3.3.4 Capillary Tube 21
3.3.5 Drier 21
3.3.6 Lagging Materials 21
3.3.7 The Thermostat 22
3.3.8 Cooling Fan 23
3.3.9 Sheet Metal 23
3.3.10 Refrigeration 23
CHAPTER FOUR: MATERIAL SELECTION, FABRICATION DETAILS AND ASSEMBLY
4.1 Material Selection, Fabrication Details and
Assembly 26
4.2 Assembly and Installation 27
4.2.1 Lagging Material and Facing Aluminum Sheet 27
4.2.2 Painting 27
4.2.3 Charging 27
4.2.4 Testing 28
4.3 Bill of Engineering Material and Evaluation 28
4.4 Trouble Shooting and Service Chart. 30
CHAPTER FIVE: RECOMMENDATION AND CONCLUSION
5.1 Recommendation 32
5.2 Conclusion 32
Reference 34
OLAIWOLA, L (2021). Fabrication of Domestic Deep Freezer. Afribary. Retrieved from https://afribary.com/works/fabrication-of-domestic-deep-freezer
OLAIWOLA, LAWAL "Fabrication of Domestic Deep Freezer" Afribary. Afribary, 17 Dec. 2021, https://afribary.com/works/fabrication-of-domestic-deep-freezer. Accessed 06 Nov. 2024.
OLAIWOLA, LAWAL . "Fabrication of Domestic Deep Freezer". Afribary, Afribary, 17 Dec. 2021. Web. 06 Nov. 2024. < https://afribary.com/works/fabrication-of-domestic-deep-freezer >.
OLAIWOLA, LAWAL . "Fabrication of Domestic Deep Freezer" Afribary (2021). Accessed November 06, 2024. https://afribary.com/works/fabrication-of-domestic-deep-freezer