Abstract
The expansion of the hydrogen utilization is one of key technology for the decarbonization society, and both sides of hydrogen supply and utilization are necessary. For the large-scale utilization of hydrogen, it is expected that the hydrogen is utilized in existing boilers widely distributed in the world. Hydrogen ultilization with exisiting faciliies can makes much economical change from fossil fuels to hydrogen.
Hydrogen has a lower calorific value per unit volume than conventional gas fuel, so the supply equipment and combustion equipment for hydrogen must be larger. However, as higher fuel gas supply pressure can leads to smalller fuel volume, equipment can be downsized and much economical design can be realized, too.
In this study, the high pressure hydrogen combustion technology developed and verified in the preceding research was applied to burners used for various boiler combustion systems, and the performance was verified by carrying out the actual test, and the technology to improve the applicability to the existing boiler was developed.
