Patent ID: 8136582
Filing Date: 2012-03-20
Classification: B01B,C01B,F22B,F22G,F28D,F28F,Y02E

Abstract:
1. A heat exchanger for vaporizing a fluid flow using heat from a thermal energy containing flow, the heat exchanger comprising: a generally cylindrical fluid flow path, the fluid flow path having a first pass and a second pass downstream from the first pass with respect to the fluid flow therethrough, wherein the second pass is spaced radially outwardly from the first pass; and a generally cylindrical thermal energy flow path, the thermal energy flow path having a third pass spaced radially outwardly of the second pass, and having a fourth pass spaced radially inward from the first pass; wherein the first pass includes a heat transfer augmentation for encouraging heat transfer between the fluid flow in the first pass and the fluid flow in the second pass.