Steam Jet Refrigeration System.
Introduction: A entire system is heat-operated refrigeration cycle. A system can be operated at 100°C - 200°C . It is heat operated cycle in which mechanical power is required to circulate the working fluid within the system . Power consumption for the pump is negligible . Waste heat from engine can be reused for air conditioning system. It is oldest system used for refrigeration. It can be used for application under 0°. It is used in food processing.
This system employs a steam ejector to compress the refrigerant to the required condenser pressure level. This system uses the kinetic energy to produce vaccum in the evaporator . water as a refrigerant. Since freezing point is 0°C. So this system cannot be used.
An external…show more content… The kinetic energy of the mixture is converted into static pressure and mass is discharged to the condenser. The condensate is usually returned to the boiler.
Generally, 1% evaporation of water in the flash chamber is sufficient to decrease the temperature of chilled water to 6° C.
The flash chamber is circulated by pump to the point of application
The warm water from the load is returned to the flash chamber. The water is sprayed through the nozzle to provide maximum surface area for cooling.
The water , which is splashed in the chamber and any loss of cooled water at the application, must be replaced by the makeup water added to the cold water circulating system.
Component of steam jet system
• Steam ejector
• Steam generator
• Flash chamber
• Evaporator fan
• Expansion valve