METHOD AND SYSTEM FOR PRODUCING WORK FROM A HYBRID THERMAL CYCLE WITH A LOW PRESSURE BOILER

摘要

Work is produced from heat in a continuous cycle. The cycle involves communicating a first flow (1) of a first working fluid to a low pressure boiler (207). The low pressure boiler forms a first flow of first working fluid vapor by using a low temperature thermal source (227). A second flow (2) of the first working fluid is provided to a high pressure boiler (203) to produce a second flow of first working fluid vapor at a pressure higher than the low pressure boiler. A second working fluid in vaporous form is compressed, after which a third working fluid is formed by mixing the first flow of first working fluid vapor, the second flow of second working fluid vapor, and the second working fluid. Thermal energy is transferred directly between one or more of the working fluids in the mixing chamber (206) exclusive of any intervening structure.