PURPOSE OF A HEAT EXHANGER o To Heat or Cool a stream flowing from item of equipment to another. The steam may be a ey A liquid 中Ag E A multiphase mixture o To Vaporize a liquid stream To Condense a vapor stream /2499 Heat Exchanger desigr8/24/99 Heat Exchanger Design 2 PURPOSE OF A HEAT EXHANGER u To Heat or Cool a stream flowing from item of equipment to another. The steam may be a: ð A liquid ð A gas ð A multiphase mixture u To Vaporize a liquid stream u To Condense a vapor stream