Patent ID: 8578714
Filing Date: 2013-11-12
Classification: F01K,F03G,Y02E

Abstract:
1. A system comprising: a vaporizer, wherein the vaporizer partially vaporizes a working fluid using the heat from a waste-heat fluid, wherein the working fluid comprises at least two components and wherein the process includes a single stage of vaporization; a vapor/liquid separator disposed downstream of the vaporizer, wherein the vapor/liquid separator receives vapor and liquid resulting from the partial vaporization of the working fluid in the vaporizer; a turbine that drives a generator to produce electricity, wherein the turbine is driven exclusively by the vapor received from the vapor/liquid separator and without further heating thereof; a condenser that condenses the vapor that exits the turbine; a split recycle, wherein a first portion of the liquid exiting the vapor/liquid separator is recirculated to the vaporizer and a second portion of the liquid exiting the vapor/liquid separator is circulated to condenser, wherein the relative amounts of the first portion and the second portion is selected to provide a desired conversion efficiency of heat from the waste-heat fluid into electricity.