ARB Research Seminar

This page updated July 16, 2013

Field Demonstration of Prototype Super Boiler

Dennis Chojnacki, Senior Engineer, Gas Technology Institute, Illinois

May 05, 2009
Cal EPA Headquarters, 1001 "I" Street, Sacramento, CA

Research Project


The Super Boiler technology and results of a field demonstration of the 300hp Super Boiler at Clement Pappas, Ontario California will be discussed.  The Super Boiler is a compact two pass firetube boiler with a patented two stage combustion system with interstage cooling to achieve low emissions (single digit NOx) at 1.5% to 2.0% O2 in the stack.  A patented Transport Membrane Condenser (TMC) heat recovery system is employed to recover heat and water from the flue gas to the boiler feedwater to achieve 92% plus steam to fuel efficiency.  Operating results of commissioning the Super Boiler last year and extended duration field test program show the significant fuel and water savings, and reduced emissions of the Super Boiler.

Speaker Biography

Dennis Chojnacki is a Senior Engineer and Project Manager at the Gas Technology Institute (GTI) in Des Plaines, Illinois.  Dennis received his BS in Engineering Physics, and MS in Physics from the University of Toledo, Toledo, Ohio.  He has over 35 years experience in combustion R&D for industrial thermal applications including 17 years at Surface Combustion, 14 years at York Shipley Boiler Co, and the last seven years at GTI.  He has several patents in combustion and thermal equipment including the Super Low Nox, High Efficiency, Compact Firetube Boiler.  He has been involved in the design and field testing of the 300 hp Super Boiler at Clement Pappas in Ontario, California.

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