Optimization in Steam Production from Waste Heat Recovery Boiler

Abstract

Our project aims to optimize steam production from Waste Heat Recovery Boiler (WHRB) by installing a condensing economizer to ensure energy recovery and cost savings. Condensing Economizer helps to reduce the stack temperature of flue gases and the steam demand of deaerator. The project is divided into five steps. Make up water and Condensate return goes to the deaerator for stripping of dissolved gases. The deaerated Boiler Feed Water goes to the Feed Water Economizer where it is heated by heat exchange with the flue gas outlet of the WHRB. The preheated water goes to the boiler where it exchanges heat with the flue gases coming from the plant. The Boiler generates steam for the process. The condensing economizer is installed to lower the stack temperature of flue gases and pre-heat the make-up water, reducing the energy demands of the Deaerator.