Preferred Utilities Completes Emissions-Reducing WPAFB Plant Retrofit

Preferred Utilities Manufacturing Corporation pic

Preferred Utilities Manufacturing Corporation

David G. Bohn is a Redding, CT, executive who guides Preferred Utilities Manufacturing Corporation as president. His firm emphasizes energy efficiency in its manufactured products, which encompass industrial oil and gas powered boilers and burners as well as combustion controllers. David G. Bohn and his Redding, CT, team have completed a number of high profile projects including a coal-to-natural-gas boiler conversion assignment at the Wright-Patterson Air Force Base (WPAFB).

Located in Dayton, Ohio, WPAFB faced a significant challenge in meeting new US Environmental Protection Agency “Maximum Achievable Control Technology” regulations, which lay out boiler emission limits. In particular, a pair of central heating plants needed to be modified from coal-firing technologies to incorporate natural gas, which burns more readily.

The Tulsa-based Preferred Special Combustion Engineering (PSCE) division completed retrofits on a variety of plant assemblies, from burners to fans, and undertook extensive performance testing. The late 1970s steam boilers were finally able to meet the temperature, pressure, and output indicated on their original nameplate. In addition, the PSCE solution was successful in reducing emissions of greenhouse gases by one half to within mandated levels.


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