Theoretical Model for Condenser of Miniature LiBr-H2O Vapor Absorption Refrigeration System

The microchannels/minichannels are being used in industry to yield compact geometry for heat transfer in a wide variety of application. The channels provide high heat transfer coefficients and the large surface area to volume ratios, has led to their use in compact condensers for air-conditioning and refrigerant systems. In order to achieve the compactness the present work attempts to develop an innovative design for condensers by the use of minichannel and it is done by providing a series of parallel mini-slots and they are cut on both sides of the plate. The refrigerant is passed on the bottom surface and the coolant is passed on the top surface. The top surfaces of the channels are covered by the cover plates. The work also attempts to develop theoretical modeling of the condensers for both refrigerant and coolant. The modeling is based on the three parameters like geometric, operating and thermal parameters. These parameters that describes the dimensions, input parameters and output parameter of the system.