ALLTEMP Desuperheating Heat Exchangers - 49-5838

Superheated Refrigerant Gas To Water

• Commercial refrigeration compressors can be used to provide an abundance of water at 150° (or even 180°) while at the same time doing its intended refrigeration job and at a saving of perhaps 8 to 10% of the electrical power it would normally require. This is accomplished by installing a heat exchanger designed for interchange of heat between super-heated refrigerant gas and water. Such a system provides significant energy savings at a comparatively low investment cost.

• This type of exchanger is installed in the discharge line between the commercial refrigeration compressor and the condenser, whether it be water or air cooled style.

• In an ordinary commercial refrigeration system almost 30% of the condensers work is spent reducing the superheated gas temperature to the condensing temperature. The balance of the condensers job is condensing the gas to liquid and sub-cooling it.

• Therefore, if the above mentioned heat exchanger is designed to pick up only the heat of the superheat it is assured that only high temperature water will be provided. At the same time if the existing water or air cooled condenser does not have to handle the heat of superheat, it has additional capacity and the condensing temperature and pressure will drop causing the compressor to require less power.

• Over sizing the heat exchanger would cause it to act somewhat as a water cooled condenser and the temperature of the water to be heated would be much lower.

• With the addition of this type of heat exchanger it is also advisable to add an insulated hot water storage tank of ample capacity.

• Usually these heat exchangers should be installed on commercial systems using automatic or thermostatic expansion valves. Installation must always be made by a qualified refrigeration service engineer. If installation is made on a capillary fed system it should be under the direction of a refrigeration engineer having knowledge of capillaries.

Applications

• Commercial refrigeration
• Heat pumps
• Milk coolers
• Air conditioning, etc.

• Stock Code	ALLTEMP_49-5838
  Brand	ALLTEMP
  Family	Superheated Refrigerant Gas To Water
  Part No	49-5838
  Length (in)	18.0"
  Diameter (in)	5.0''