Inferring temperature uniformity from gas composition measurements in a hydrogen combustion-heated hypersonic flow stream
- Phoenix Solutions Co., Minneapolis, MN (United States)
The application of a method for determining the temperature of an oxygen-replenished air stream heated to 2600 K by a hydrogen burner is reviewed and discussed. The purpose of the measurements is to determine the spatial uniformity of the temperature in the core flow of a ramjet test facility. The technique involves sampling the product gases at the exit of the test section nozzle to infer the makeup of the reactant gases entering the burner. Knowing also the temperature of the inlet gases and assuming the flow is at chemical equilibrium, the adiabatic flame temperature is determined using an industry accepted chemical equilibrium computer code. Local temperature depressions are estimated from heat loss calculations. A description of the method, hardware and procedures is presented, along with local heat loss estimates and uncertainty assessments. The uncertainty of the method is estimated at {+-}31 K, and the spatial uniformity was measured within {+-}35 K.
- OSTI ID:
- 81732
- Report Number(s):
- CONF-9505201-; TRN: 95:004980-0009
- Resource Relation:
- Conference: 41. international instrumentation symposium, Auora, CO (United States), 7-11 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 41st international instrumentation symposium; PB: 709 p.
- Country of Publication:
- United States
- Language:
- English
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