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Low temperature autoignition of Jet A and surrogate jet fuel |
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| Institution: | 1. Department of Mechanical Engineering, Sejong University, Seoul 05006, Republic of Korea;2. Agency for Defense Development, Daejeon 305-600, Republic of Korea;1. Department of Chemical Engineering, Brigham Young University, Provo, UT 84602, USA;2. Design Institute for Physical Properties Project 801, Provo, UT 84602, USA;1. School of Aeronautics, Chongqing Jiaotong University, Chongqing, 400074, China;2. School of Mechatronics & Vehicle Engineering, Chongqing Jiaotong University, Chongqing, 400074, China;3. School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, China;4. Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology, Nanjing, 210016, China |
| Abstract: | An experimental study of the low-temperature and low-pressure autoignition of Jet A and surrogate fuels was conducted using the ASTM-E659 standardized test method. Two surrogate fuels (Aachen and JI mixtures), their individual components and two batches (POSF-4658 and POSF-10325) of standardized Jet A were tested using the ASTM-E659 method for a range of fuel concentrations and temperatures. The ignition behaviors were categorized into four distinct ignition modes. The individual hydrocarbon components had a wide range of ignition behaviors and minimum autoignition temperatures (AIT) values depending on the molecular structure. The two Jet A batches showed similar ignition behavior with measured AITs of 229 ±3°C and 225 ±3°C respectively. Both surrogates exhibited similar ignition behavior to Jet A with comparable AITs of 219 ±3.1°C (Aachen) and 228 ±3°C (JI) with the JI mixture proving to be a more suitable surrogate to Jet A in the low-temperature thermal ignition regime. |
| Keywords: | Autoignition Thermal ignition Jet A Surrogate fuels ASTM-E659 |
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