The reports describe an exploratory development program to identify, evaluate, and demonstrate dry techniques for significantly reducing NOx from thermal and fuel-bound sources in stationary gas turbine engines. Volume 1 covers Phase I of the four-phase effort. In Phase I, duty cycles were analyzed to identify current and projected dominant operating modes and requirements of stationary gas turbine engines. These analyses indicate that as compression ratios and turbine inlet temperatures are increased to improve thermal efficiency, uncontrolled NOx emissions can be expected to double in 10 years and triple in 20 years. An extensive survey was made of candidate combustor concepts, and an analytical study was made from which those concepts considered to have significant potential for reducing production of NOx were identified. An initial compilation of 26 combustor design concepts was assembled, indicating potential for controlling NOx from clean fuels and/or fuels containing significant amounts of bound nitrogen. Computer simulations of these combustor concepts aided in prioritizing the designs prior to experimental screening in a bench-scale combustor test rig. The experiments were carried out under Phase II and are described in Volume 2.

Project Officer: W.S. Lanier. Pratt and Whitney Aircraft Group, United Technologies Corporation Contract Number: 68-02-2136 "January 1980." Includes bibliographical references. "EPA 600/7-80-017a-d."

Volume I. Review and preliminary evaluation /