This research was conducted to study the burden of cooling and ice production rate compared to the production of ice time. Generally, the cooling load will directly affect the energy efficiency of the cooling system. So how to mount fins on the surface of the outer tube of Eva ice condensation process is one way
to increase efficiency in the production process. Initial studies done by comparing data between the theoretical calculations and measurements in the industrial field. The pipe generally used in the production of ice will be empty pipe. The values in the field, you will see that the process produced ice is a process that occurs in a short period of about 20 to 30 minutes per cycle. The process of heat transfer from the water used to produce ice into the refrigerant (ammonia) at a temperature below the freezing point of water. During the cooling The refrigerant within the evaporator will change from liquid to vapor by boiling. The properties of ammonia used in all calculations will use the saturation temperature -7.5 degrees
Celsius in educational theory. The common assumption is that the process takes place in a Quasi-steady one-dimensional and thickness of the ice as a function of time. By finding patterns of temperature that took place will require numerical methods to assist in the solution of equations and iteration process. The thickness of the ice, which is a function of time is estimated from the boundary conditions at the interface of water and ice. The results of the measurements and calculations from field to see that there is consistency in quality. It will be seen that the rate of ice and cooling load will fall sharply in the early stages after the start of the erection. After that, the rate of ice and cooling load will begin to decline at a slower rate in almost constant until the process is finished. Then put the theory to predict the cooling load and the rate of ice if the outer surface of the fin tubes. It found that the cooling load is increased due to the heat transfer much more. As a result, the production rate increases as well.
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