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Liquid Rocket Engine Heat Transfer Tools

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
En'Urga Inc.
1201 Cumberland Ave. West Lafayette, IN 47906-1385
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2005
Title: Liquid Rocket Engine Heat Transfer Tools
Agency / Branch: DOD / USAF
Contract: FA9300-05-M-3004
Award Amount: $100,000.00


This Phase I project will evaluate the feasibility of utilizing mid-infrared hyperspectral emission tomography for estimating the temperature of the hot gases near the wall as well as the temperature of the wall in a rocket engine combustor. The hyperspectral emission measurements at the water vapor and carbon dioxide bands will be deconvoluted using a Maximum Likelihood Estimation method of the linearized equation of radiative transfer to provide the temperatures of the hot gases near the wall. Radiation signatures from the continuum band will be used to provide a temperature map of the combustor wall. During the Phase I work, the feasibility of the system to will be evaluated using a low-pressure hydrogen/oxygen combustor. Three tasks are planned for the Phase I work: 1) Develop a suitable deconvolution algorithm to obtain wall and gas temperatures within the combustor from hyperspectral images, (2) Evaluate the feasibility of hyperspectral emission tomography for temperature estimation in a low pressure combustor, and (3) design a prototype system to obtain temperature measurements in a high pressure rocket engine combustor. During the Phase II work, a prototype system will be fabricated and evaluated using the high-pressure rocket engine facility at Purdue University.

Principal Investigator:

Yudaya Sivathanu
Technical Director

Business Contact:

Deepa Divakaran
Business Manager
Small Business Information at Submission:

1291-A Cumberland Avenue West Lafayette, IN 47906

EIN/Tax ID: 351925571
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No