This is the process that "the heat of materials or ambient is removed from themselves in order to decrease the ambient temperature below its own temperature and fit the temperature on this value". This process is called as cooling. Thus, first of all, heat must be removed from the structure and then the heat must be removed from ambient. This can be performed by means of mechanical and chemical way. Except the special applications; the systems that uses gases or liquid as refrigerant fluid, in contact without interference between two surfaces or cooling the ambience before cooling the material are the implementation of this systems. Cold room systems, evaporative cooling systems, cold water generators and consumers are the most commonly used equipments. |