Category Title
Federal and state clean air regulations passed in the last decade have required operators of internal combustion engines to modify their units to reach compliant emissions levels. Operators of engines now facing emissions reduction requirements are benefiting from the experience of those who have gone before them. A history of performance and maintenance records is now available to aid decisions as to the most effective means of reducing emissions for many stationary large bore natural gas engines. One such example is the use of catalytic converters and air/fuel ratio controllers to control emissions of “Rich burn” engines. While this technology has proven effective, there are inherent limitations based on operating envelope, fuel performance, and maintenance costs. This paper illustrates Duke Energy's recent successful efforts to reduce NOx and CO emissions levels of their Ingersol-Rand KVG-103 units by developing a retrofit package styled after “clean burn” applications. The target emissions limits were 2 g/bhp-hr NOx and 3.0 g/bhp-hr CO over the operating envelope of 75%-105% torque from 270 rpm to 330 rpm. Other conversion requirements include improved fuel economy, reduced cylinder exhaust temperatures, and no increase in maintenance costs. This case study shows that it is possible to meet target emissions goals of lower BMEP “rich burn” engines without being subject to limitations of catalyst technology and the associated increased operating costs.
Your Price $195.00
List Price $195.00