Steam-generation method using waste heat - involves superheating saturated stream generated in both heating stages

摘要

The method uses waste heat to generate fresh steam, particularly for driving a turbine. A first heating stage generates lower-temperature steam, the saturated steam (D1) produced by it being superheated in the second to bring it to the desired temperature. The second stage also generates saturated steam (D2). This is combined with that from the first stage into saturated steam (D3) superheated in the second stage. ADVANTAGE - Improved efficiency without additional firing.