0525 Development of gas turbine direct combustion technology by hyper-coal
Details
For high efficiency combined cycle gas turbine power plant there are several problems about erosion and corrosion of the gas turbine blade, stable combustion and low emission to use hyper-coal, which is produced from coal but almost includes no ash. Therefore, for the first stage combustion tests in the atmospheric pressure have been conducted, and as the results long time stable combustion and almost complete combustion have been achieved by using hyper-coal pulverized at the mean diameter about 6μm. In addition, NO_x emission in hyper-coal combustion is the level similar to the nonuse of de-NO_x pulverized coal combustion method, so the tests for emission reduction and the tests pressurized at the actual gas turbine pressure are needed in near future.
