Search Results

Salt driers installed in an airport jet fuel delivery system reduced the fuel water content below saturation, lengthened filter life, and improved the performance of the downstream system components. Systems must be designed and operated to control salt carry-over. The high initial cost of salt driers compared with conventional filter-coalescers may be justified by low operating cost, improved microbial control, and customer satisfaction. Salt driers have a place in airport fuel treating.

This paper reports the results of an evaluation by the Coordinating Research Council (CRC) of a new test to measure the thermal stability of jet fuels. This new test, the jet fuel thermal oxidation test (JFTOT) by Alcor Inc., was designed to improve upon the ASTM-CRC Coker test. The Alcor JFTOT is described as to fuel system, the heater test tube section, the thermocouple calibration tube rating methods-both visual rating and light reflectance methods, test program format, effect of test time on deposit formation, the heater tube temperature profile, and visual and tube deposit rater ratings. The relationship between the ASTM-CRC Coker and the JFTOT is evaluated, and the precision of the JFTOT and various measurements are discussed.