HEAT EXCHANGER AND HEAT RECOVERY SYSTEM

摘要

HEAT EXCHANGER AND HEAT RECOVERY SYSTEM A counterflow or parallel flow heat exchanger includes a housing and a heat transfer sheet for dividing the housing into two fluid-tight chambers. The heat transfer sheet forms the heat transfer surface between two fluids which are forcibly supplied to each of the chambers respectively. The heat transfer sheet preferably includes longitudinal undulations or corrugations for providing additional surface area and for guiding the fluids. A preferred arrangement of the heat transfer sheet includes planar ends which are affixed in fluid-tight manner to planar end members of the housing. Clinching of the corrugated sheet to create a linear end portion of the sheet is also possible. A heat recovery system employing the heat exchanger is also disclosed.