The Enthalpies of Distillate Fuels by a Differential Scanning Calorimetric Method.

摘要

The enthalpy differences and heat capacities of five Navy Distillate fuels, one Diesel Fuel Marine, and one JP-5 fuel were determined in the temperature range -15 to +25 C (5 to 77 F) with a differential scanning calorimeter. Enthalpy differences and heat capacities were determined to a standard deviation of about 4%. The differential scanning calorimeter method also provided a means of estimating wax contents and wax formation temperatures to + or - 2 degrees C. The method is proposed as a quick and reasonably accurate means of determing the enthalpy differences of fuels over the temperature region appropriate to low-temperature fuel handling. (Author)