Applications of Endothermic Reaction Technology to HSCT and AST

TITLE AND SUBTITLE:
Applications of Endothermic Reaction Technology to HSCT and AST

AUTHOR(S):
Marvin R. Glickstein, Robert J. Bengston, and Louis J. Spadaccini

REPORT DATE:
January 2005

FUNDING NUMBERS:
WBS-22-714-09-46
NAS3-27397

PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES):
Pratt & Whitney
400 Main Street
East Hartford, Connecticut 06108

PERFORMING ORGANIZATION REPORT NUMBER:
E-14644

SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
Washington, DC 20546-0001

REPORT TYPE AND DATES COVERED:
Final Contractor Report

SPONSORING/MONITORING AGENCY REPORT NUMBER:
NASA CR-2005-213133
UTRC Report R97-5.101.0037-5/19

SUPPLEMENTARY NOTES:
This research was originally published internally as HSR057 in May 1997. Marvin R. Glickstein and Robert J. Bengtson, Pratt & Whitney, West Palm Beach, Florida and East Hartford, Connecticut; Louis J. Spadaccini, United Technologies Research Center, East Hartford, Connecticut 06108. Responsible person, Diane Chapman, Ultra-Efficient Engine Technology Program Office, NASA Glenn Research Center, organization code PA, 216-433-2309.

ABSTRACT:
The success of strategies for controlling emissions and enhancing performance in High Speed Research and Advanced Subsonic Technology applications may be increased by more effective utilization of the heat sink afforded by the fuel in the vehicle thermal management system. This study quantifies the potential benefits associated with the use of supercritical preheating and endothermic cracking of jet fuel prior to combustion to enhance the thermal management capabilities of the propulsion systems in the High Speed Civil Transport (HSCT) and the Advanced Subsonic Transport (AST). A fuel-cooled thermal management system, consisting of plate-fin heat exchangers and a small auxiliary compressor, is defined for the HSCT, integrated with the engine, and an assessment of the effect on engine performance, weight, and operating cost is performed. Critical requirements for system development are identified, and an approach for validating the concept is described.

SUBJECT TERMS:
Thermal management; Fuel cooling; Supercritical fuel; Endothermic fuel; Turbofan

NUMBER OF PAGES:
28

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