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Design And Fabrication Of Mobile Deep Freezer
CHAPTER ONE -- [Total Page(s) 2]
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CHAPTER ONE
INTRODUCTION
Firstly refrigeration in the process of removing heat from a substance or space in order to make it cooler.
A
mobile deep freezer is not different from all other refrigeration the
only difference is that it can be moved easily by wheel or rollers to
different places in a given time with less force applied to effect the
movement.
In refrigeration the three mode of heat transfer is
employed causing heat to flow from high temperature regions to low
temperature regions. The substance used to carry heat in the
refrigeration is known as the refrigerant.
Refrigerant is the
cooling agent in refrigeration. It makes indirect contact with the
substance to be cooled. It is circulated in the refrigeration
circult and the attendant change of state from liquid to vapour
brings about the necessary cooling that is required in the system
which also involves INTENT OR SENSIBLE HEAT.
Refrigeration is
accompanied by various method such as the vapour compression system
absorption system and steam jet refrigeration cycle.
Refrigeration
contributes greatly to the raising of living standards of people its
uses can not be over emphasized in this book. The most common used
and one that is readily recognized is the preservation of food. Most
products in our homes businesses industries laboratories hospitals
farms etc are affected by refrigeration.
Its application is also
extended to other areas apart from food in medicine it is used in
blood banks for antibiotic for making ice for compression and low
temperature surgery for presenting certain tissues that pathologist
work on. It is very essential in genetic engineering to preserve
sperms and eggs or longer years before they work on them to bring life.
Deep
freezer is an Electro- mechanical appliance which maintains the
temperature of substance space or material as requires by the user it
produce artificial cooling. It operates on the principal of reversed
cannot cycle that is to say that it absorbs heat from a low
temperature and rejects it to a high temperature region.
CHAPTER ONE -- [Total Page(s) 2]
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ABSRACT - [ Total Page(s): 1 ]This wrote up is a detail of the processes for the physical realization of the design and construction of mobile deep freezer.It is divided into chapters which discussed expensively the practical refrigeration cycle with rull attention given to design factors working principals and choice of material.Also considered were fabrication assembly and safely requirement ... Continue reading---
