Arshad, Muhammad Bilal  <br/><br/>
Design of control system and fabrication of special compartment in Static Refrigerators / 
Muhammad Bilal Arshad 
 - 54p.  Soft Copy  30cm 
<br/><br/> Refrigerators being used for domestic purposes are of three types, namely static,<br/>brewed, and no-frost. The aim of this project was to introduce a new compartment in static<br/>refrigerators to enhance the quality and freshness of food present in this compartment. It was<br/>achieved by having control over temperature depending on the needs of the user and needs for<br/>the type of food inside the compartment. There can be two methods to fabricate this special<br/>compartment. One is by using parallel evaporators and other is by using fan and airduct. The<br/>parallel evaporator method is expensive but highly efficient, while air duct is less expensive<br/>and does not compromise enough efficiency, in term of energy consumption and cooling. The<br/>airduct was implanted in the refrigerator and results were taken. The result shows the total time<br/>to reach the target temperature, and time to drop per half degree of temperature. The target was<br/>to set the temperature at any value between 5 to -5 oC. In this project, the minimum temperature<br/>achieved was -1 oC, as the average temperature of evaporator goes to -12 oC, rather than the -<br/>18 oC for most of the domestic refrigerators. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS Mechanical Engineering      
<br/><br/><label>Dewey Class. No.: </label>621