In various illustrative examples, the
system may include heat
recovery heat exchangers, one or more turbines or expanders, a desuperheater
heat exchanger, a condenser
heat exchanger, a separator, an accumulator, and a liquid
circulating pump, etc. In one example, a bypass desuperheater control valve may be employed. The
system comprises a first
heat exchanger adapted to receive a heating
stream from a heat source after passing through a second heat exchanger and a second portion of a
working fluid, wherein, the second portion of
working fluid is converted to a hot liquid via
heat transfer. An
economizer heat exchanger that is adapted to receive a first portion of the
working fluid and the hot
discharge vapor from at least one
turbine may also be provided. The first and second portions of the working fluid are recombined in a first flow mixer after passing through the
economizer heat exchanger and first heat exchanger, respectively. A second heat exchanger is provided that receives the working fluid from the first flow mixer and a hot heating
stream from a heat source and convert the working fluid to a hot vapor. The hot vapor from the second heat exchanger is supplied to at least one
turbine after passing through a separator designed to insure no liquid enters the said at least one
turbine or expander. The hot,
high pressure vapor is expanded in the turbine to produce mechanical power on a shaft and is discharged as a hot, low pressure vapor.