ASSESSING THE FABRICATION OF DOMESTIC REFRIGERATOR
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This paper describes the quick and precise control method for domestic refrigerator.
The propose controller is based on the fuzzy logic and neutral network designed maintaining the constant inner temperature (of the refrigerator and improving the refrigerator efficiency.
The fuzzy logic controller is used to maintain the inner temperature in spite of the environment variation such as outer temperature change of the volume change of the stored food to the refrigerator a neutral network is used and reined to recognize the user pattern such as the number of the door opening of the refrigerator.
The first ordered approximated mode of the refrigerator is used for the simulation.
Through the simulation in the case of the outer temperature change like summer or winter, the propose fuzzy logic controller with a neutral network is show to be more efficient than the conventional (on-off) controller.
1.1 REFRIGERATOR SYSTEM
Refrigeration is the process of removing heat from a substance and transfers it to another.
It is also the science of production and maintaining a temperature below that of a surrounding atmosphere.
That is, is the act of removing heat from a substance to be cooled Robert (2011).
In any refrigeration system, the maintenance of low temperature requires the continuous removal of heat from the product at low temperature and the discharge of heat at higher temperature.
The pressure surrounding a liquid affects the escape of the molecule.
As the temperature increase the molecules acquires kinetic energy (velocity) and escape.
Refrigeration is accomplished through this method.
Refrigeration therefore is that branch of engineering which deals with the principle of lowering the temperature of au insulated enclosure by extracting heat and rejecting to the surrounding with the aid of liquid refrigerant Robert (2011).
In chapter one, the report discussed the introduction to refrigeration system.
Chapter two analyses the alternativeto refrigeration system, the description of component part and working principle is discussed in chapter three design calculation for a refrigeration system in chapter four, chapter five discussed and explain lip construction and assembly of the component parts. The conclusion
And recommendation is mention in chapter six.
This project work is aimed at designing a domestic refrigerator for food preservation.
(1) It also demonstrates practically how the various components of a refrigeration system function.
(2) It is meant to educate and encourage students who may like to embark on similar project in future, using the available raw materials.
(3) This project will help in the aspect of teaching refrigerator the necessity of taking good care of their refrigeration, the danger of using sharp and pointed object in removing product from the evaporator compartment. In this the section, the principle underlying in the different types of refrigeration system was employed in this project work.
The basic types of refrigeration system are:
(1) Air refrigeration system.
(2) Vapour absorption refrigeration system
(3) Vapour compression refrigeration system.
The project design utilized the principle of vapour compression system being the most widely used cycle of refrigeration.