Details of patent applications filed by IIT Bombay in the recent past
 

Freeze Concentration System

MV Rane and S Jabade of Mechanical Engineering Department

1000/MUM/2002, 18 November 2002

Granted on March 12, 2007 and assigned Indian Patent No. 204956 recorded in register of patents on April 19, 2007

Abstract: The present invention relates to an energy efficient and inexpensive Freeze Concentration System (FCS) to selectively freeze solvent from a solution using Heat Pump (HP) with heat transfer surfaces to extract and deliver heat to freeze the solvent and melt the frozen solvent using the heat from the HP thereby implementing an energy efficient Freeze Concentration Process (FCP). It further relates to the FCP wherein one or more sets of the heat extracting and/or heat delivery surfaces are intermittently operated as either freezing or melting surfaces to concentrate solution in a batch process or batch wise continuous process. It also relates to the FCP wherein two or more sets of heat extracting and heat delivery surfaces are continuously operated as freezing and melting surfaces to concentrate solution in a continuous process.