Low temperature autoignition of Jet A and surrogate jet fuel

• Main Authors: Martin, C.D (Author), Shepherd, J.E (Author)
• Format: Article
• Language: English
• Published: Elsevier Ltd 2021
• Subjects: ASTM-e659; ASTM-E659; Autoignition; Auto-ignition; Fuel concentration; Individual components; Jet A; Jet fuel; Low pressures; Lows-temperatures; Mixtures; Standardised test methods; Surrogate fuels; Temperature; Testing; Thermal ignition
• Online Access: View Fulltext in Publisher

 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. © 2021 Elsevier Ltd