VARIABLE HEAT FLUX HEAT EXCHANGERS

摘要

A system for heat exchange is provided in which process material (1) flows through a heat exchanger comprising multiple heat transfer stages and the heating and or cooling power applied to each stage can be modified independently. The system comprises a unitary heat exchanger comprising a heat transfer surface comprising a plurality of elements or zones over which a process material can flow wherein each element or zone has independent means (V1-V6) to set or control the level of heating or cooling within that zone.