A novel high-temperature flow calorimetric system of conduction type was designed, with a built in chromatograph suitable for on-line analysis. The thermal and time constants at 700℃ of the calorimeter were calibrated by a sample electric energy method. The accuracy of the equipment was also validated with standard samples such as heptane and N~2. The heat sink values of endothermic hydrocarbon fuels S-1 and R-1 at 700℃ were determined to be 2.99 MJ/kg and 2.82 MJ/kg, respectively.

Key words: CHROMATOGRAPHY, ON-LINE ANALYSIS, PYROLYSIS, CALORIMETERS, NITROGEN, HEPTANE