Patent ID: 7954544
Filing Date: 2011-06-07
Classification: F28F

Abstract:
1. A heat transfer system for process fluids comprising: one or more conduits sized to accept a process fluid flowing therethrough at a Reynolds Number of at least about 275,000, each conduit having a length, an inner surface, and a maximum conduit wall temperature limit; each conduit positioned to accept an inconsistent heat flux along the length of the conduit from a heat source sufficient to provide a predetermined bulk temperature to the process fluid. the inner surface disposed to transfer heat from the conduit to the process fluid flow; and one or more ridges formed on a portion of the inner surface of each conduit, the ridges positioned along at least a portion of the length of the conduit receiving the heat flux, and the ridges dimensioned to increase the heat transfer to the process fluid flow and configured to provide a temperature ratio of the conduit with the one or more ridges relative to the conduit without ridges defined by formula A and the temperature ratio is from about 0.6 to about 0.9; and the one or more ridges configured to providing a pressure ratio of the conduit with the one or more ridges relative to the conduit without ridges defined by formula B and the pressure ratio is about 1.2 to about 1.7; wherein T T T T [ΔP/Unit Length] [ΔP/Unit Length]