Total site targets for fuel, co-generation, emissions, and cooling

Abstract Process Integration and Pinch Technology ten years ago introduced procedures aimed at the design of integrated processes as opposed to individual unit operations. The approach followed a two-stage procedure. The first stage -targeting - identifies the most promising design options using quick and reliable screening and analysis tools. The second stage established designs for the most promising options. The application of Pinch Technology for single processes is thus mature. The current paper extends the procedures of Pinch Technology from single processes to the concept of “Total Sites”. Total Sites are factories incorporating several processes, serviced by and linked through a central utility system. The paper introduces procedures which enable the designer to set site-wide targets for fuel, co-generation, emissions and cooling ahead of design. The targets allow the designer to analyze prior to design various site related proposals with reference to site expansion, process and utilities modifications etc., both in grassroots and in retrofit situations.