The key technology of applying lowgradecoal is to increase secondary air temperature, ensure sufficient air in kiln and adjust the batching scheme properly.
The radiative heat transfer coefficients of the immersed tude within the operating conditions of the fluidized bed combustion boiler with lowgradecoal are also discussed.
文中尚对劣质煤沸腾燃烧锅炉中的埋管辐射放热系数进行了讨论。
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German reunification in 1990 saddled the country with East Germany's low-grade brown coal plants, the dirtiest in Europe.