ABSTRACT
This write up is a detail of the process and formulation of plan for the physical realization of the construction of a mobile refrigerator. It is divided into chapters, which discussed extensively the practical refrigeration cycle with full attention given to design factors, working principle and choice of material The method used in fabrication, assembly an arriving at knowing the safety requirement were not left out.
NOMENCLATURE
M = Means
A = Area
S = Entropy
V = Volume
M = Mass flow rate
Q = Diameter
G = Gravity
D = Density
TA = Temperature difference
H = Enthalpy
Q = Quantity of Heat
R = Equivalent Load
L = Length
P = Pressure
T = Temperature
U = Internal Energy
R = Thermal Conductivity
X = Thickness of Material
VS = Swept Volume
H.P = Horse Power
G.P = Coefficient of Performance.
TABLE OF CONTENTS
CHAPTER ONE
Man - Made Cold and Refrigerator 2
CHAPTER TWO
Related to Thermodynamic Process) 10
CHAPTER THREE
Detailed information needed for the construction
consideration of the principle. Construction details 24
CHAPTER FOUR
4.0 Construction/Maintenance Procedure 40
CHAPTER FIVE
References 50
CHAPTER ONE
INTRODUCTION
Refrigeration has played a vital role in the life of people and has made the standard of living of mankind to be improved. The improvement in the refrigeration is as a result of team work by Engineers, Scientist, Technicians and so on.
Furthermore, science has provide the foundations on which other new discoveries such as substance and materials are built and these are applicable to refrigeration field by those that manufacture, design, maintain and install refrigeration equipment, through subsequent planned research, development and practical application is becomes useful.
The application of refrigeration or its principle has no limit and the most obvious and the one known to everybody is its preservative purpose such as food, drinks and other perishable items. Refrigeration is very intimate and this modern society cannot be without it.
From history, the knowledge and strong of Ice was dated as far back of 10. Be then the early men know about Ice but the important and its usage as a means of presenting food has not be there. Some thousand years later, the Chinese discovered that Ice improves and maintained the test of food and drinks for some times hence they began to cut Ice during winter period, packed them with straco which they sold during summer period.
The early Egyptian found that water be cooled by placing it in a porous fairs at sundmen. The moisture notice be evaporated by the night breezes which seeped through the jars causing the water in the porous Jar to be cooler. The great discovery day the Greeks and Romans should not be left out, they brought some from the mountaintops to the conical shaped pits which was lined with stand and branches and then covered with a thatched roof.
As days are passing by, the weather al
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