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http://dx.doi.org/10.5139/JKSAS.2002.30.5.118

Small Turbojet Engine Test and Uncertainty Analysis  

Jun, Yong-Min (한국항공우주연구원 터보기계연구그룹)
Yang, In-Young (한국항공우주연구원 터보기계연구그룹)
Nam, Sam-Sik (한국항공우주연구원 터보기계연구그룹)
Kim, Chun-Taek (한국항공우주연구원 터보기계연구그룹)
Yang, Soo-Seok (한국항공우주연구원 터보기계연구그룹)
Lee, Dae-Sung (한국항공우주연구원 추진기관연구부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.5, 2002 , pp. 118-126 More about this Journal
Abstract
The Altitude Engine Test Facility(AETF) was built at the Korea Aerospace Research Institute and has been being operated for the gas turbine engines in the class of 3,000 lbf thrust. To enhance the confidence level of AETF to the international level, a series of studies and facility modification have been conducted to improve the measurement uncertainty and reliability. In this paper, some part of the facility evaluation tests performed with a single spool turbojet engine are introduced. Tests were performed simulating the flight conditions as steady state, sea level for various flight speeds (i.e., Mn=0.3, 0.5, 0.7, 0.9). The obtained test results are compared with the predicted values of the engine DECK. The measurement uncertainties of airflow, net thrust, fuel flow and SFC showed 0.791~0.914%, 0.851~1.706%, 1.372~7.348% and 1.642~5.205%, respectively. Thus, from this research, the improvement methods of uncertainties on AETF has been confirmed.
Keywords
Altitude Test; Turbojet; Performance; Uncertainty;
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