ICT was the prime designer responsible for a new Combined Heat and Power (CHP) plant installed at an ethanol production facility. The electric and thermal loads at the site were increasing due to a major expansion, and ICT was initially contracted to perform a financial analysis of installing a CHP system in lieu of traditional boilers.

Due to favorable financial results predicted in the analysis, ICT was contracted to provide full design services for the CHP plant. The CHP system consists of a 7.5-megawatt (MW) combustion turbine with a Heat Recovery Steam Generator (HRSG) and a duct burner for supplemental firing of gas to increase the production of steam. The HRSG produces 135,000 lb/hr of saturated steam at 130 psig, and the system is configured to allow fresh air firing to produce steam when the turbine is not operating due to maintenance outages.

The CHP system is housed in a new building which includes a control room, switchgear room, and battery room to support CHP operations. The plant also includes a new deaerator and boiler feed-water pumps and is connected to the existing auxiliary systems for condensate return and make-up water.

Project Highlights:

• ICT was responsible for assisting the Owner with the procurement of all the major equipment.