In summarizing the results obtained in the first five years of the National Jet Fuel Combustion Program (NJFCP), this book demonstrates that there is still much to be learned about the combustion of alternative jet fuels.
Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to po
The effects of variations in properties and characteristics of liquid hydrocarbon-base fuels in gas turbine engine combustors was investigated. Baseline fuels consisted of military-specification materials processed from petroleum and shale oil. Experimental fuels were comprised of liquid petroleum blends that were prepared specifically to exhibit desired physical and chemical properties. These fuels were assessed for their influence on ignition and performance characteristics in combustors of the F100, TF30, and J57 (TF33) engines at simulated operating conditions. In general, during relatively short duration tests, combustor ignition and performance became increasingly poorer as fuel quality deviated from specification or historical values. (Author).
The objective of this study was to develop and/or improve correlations of fuel properties and engine design with combustion performance and hot section durability. The data base consisted primarily of fuel effect data obtained over the past four years under a number of DoD contracts. The approach taken was first to develop fuel effect correlations for specific combustor configurations, then to tie together these correlations using engine design parameters thereby allowing prediction of fuel effects in any current or future aircraft gas turbine combustion system. In most cases statistical analysis was used to identify the correlating variables. The relationships developed for individual combustors were then correlated with combustor design and operating parameters that were influence by fuel differences.
This program is an analytical study correlating fuel properties and engine design and operating parameters with engine combustion performance and hot section (combustor and turbine) durability. Standard fuel specification data and fuel composition data are considered, along with special fuel properties and characteristics not routinely measured. Engine combustor design parameters considered are fuel injection and atomization, fuel/air mixing, residence times, temperatures and pressures, and flow velocities and other important design parameters. Engine performance parameters include low temperature starting and high altitude relight, flame stability (i.e. lean blow-off limits), combustion efficiency, exhaust emissions including smoke, and thermal loading of the combustor liner and turbine nozzles. Data for this program were obtained from recent and current Aero Propulsion Laboratory sponsored programs, NASA programs, and similar work performed by other Government agencies and industry.
The development of clean, sustainable energy systems is a preeminent issue in our time. Gas turbines will continue to be important combustion-based energy conversion devices for many decades to come, used for aircraft propulsion, ground-based power generation, and mechanical-drive applications. This book compiles the key scientific and technological knowledge associated with gas turbine emissions into a single authoritative source.
This program is an analytical study correlating fuel properties and engine design and operating parameters with engine combustion performance and hot section (combustor and turbine) durability. Standard fuel specification data and fuel composition data are considered, along with special fuel properties and characteristics not routinely measured. Engine combustor design parameters considered are fuel injection and atomization, fuel/air mixing, residence times, temperatures and pressures, and flow velocities and other important design parameters. Engine performance parameters include low temperature starting and high altitude relight, flame stability (i.e. lean blow-off limits), combustion efficiency, exhaust emissions including smoke, and thermal loading of the combustor liner and turbine nozzles. Data for this program were obtained from recent and current Aero Propulsion Laboratory sponsored programs, NASA programs, and similar work performed by other Government agencies and industry.
This revised edition provides understanding of the basic physical, chemical, and aerodynamic processes associated with gas turbine combustion and their relevance and application to combustor performance and design. It also introduces the many new concepts for ultra-low emissions combustors, and new advances in fuel preparation and liner wall-cooling techniques for their success. It details advanced and practical approaches to combustor design for the clean burning of alternative liquid fuels derived from oil shades, tar sands, and coal. Additional topics include diffusers, combustion performance fuel injection, combustion noise, heat transfer, and emissions.
Everything you wanted to know about industrial gas turbines for electric power generation in one source with hard-to-find, hands-on technical information.