Control, Characterization, and Cooling of an Ultra-Compact Combustor
Abstract
The outer ring and back plate of the Ultra-Compact Combustor (UCC) were redesigned to improve control of the fuel and air injection and subsequent mixing with the goal of maximizing the fuel burned within the combustion cavity. Evaluations using Computational Fluid Dynamics (CFD) were implemented to help guide the design and understand the combustion dynamics. The outer ring and back plate were then manufactured and tested to compare with the original design. These components allowed a new level of control over the UCC never before examined which was then characterized by developing an operating prole for the various controllable aspects. The redesign and unprecedented controllability allowed the UCC to operate at previously unobtainable equivalence ratios and produce a nominal 15 increase in exit temperatures. Similarly, CFD was utilized to guide the design of a lm cooled hybrid guide vane which drew in compressor air at the stagnation region of the airfoil as the coolant. Using CFD the effects of the required internal supports on flow dynamics and cooling effectiveness were explored.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 22, 2018
- Accession Number
- AD1056560
Entities
People
- Kevin J. Demarco
Organizations
- Air Force Institute of Technology