Method and device for refrigerating a fluid

DETAILED DESCRIPTION Accordingly, it is an object of the present invention is to provide a method and a device for refrigeration of fluids such as gas, like air, and liquid using a heat exchanger, which does not require Freon.
It is a further object of the present invention to continuously supply air of comfortable temperature and humidity or gas of low temperature and low humidity using desiccative refrigeration.
It is a still further object of the present invention to refrigerate using less energy than used in conventional methods/devices.
To accomplish these and other objects, a method and device for refrigerating a fluid are provided in which a volatile liquid mist is added through a nozzle to a flow of a gas to saturate the gas with vapor of the volatile liquid, to cause a large amount of misty minute liquid drops of the volatile liquid to float in the gas and to form a cooling gas.
The cooling gas is directed through a first flow passage of a heat exchanger having first and second flow passages.
The fluid to be refrigerated is directed through the second flow passage of the heat exchanger, so that heat from the fluid is transferred to the cooling gas, while the cooling gas passes through the first flow passage of the heat exchanger to elevate the temperature of the cooling gas.
A portion of the minute liquid drops floating in the cooling gas are allowed to vaporize due to the elevated temperature of the cooling gas.
The temperature of the cooling gas is continuously lowered by the heat of vaporization of the vaporizing minute liquid drops.
The fluid passing through the heat exchanger is thus continuously refrigerated with the cooling gas having the continuously lowered temperature.