抄録
The combustion characteristic of FIFO (Heavy Fuel Oil) was clarified so as to reduce and avoid problems in combustion. A constant volume type fuel ignition analyzer (FIA) and exhaust gas analyzer for NO and CO were used. Not only was ignition delay and combustion period data obtained by FIA; but also NO and CO concentrations in the FIA test vessel, these were found useful for aptitude test of HFO. It can be concluded that a more reliable threshold to avoid combustion troubles was obtained when we coupled analyses of the FIA original data and the exhaust gas compositions.