The potential for efficiency improvement depends mainly on the fuel type fired, the exit flue-gas temperature, the process fluid temperature, the low-level heat required, and the excess air etc.
冷凝式锅炉的热效率提高潜力主要取决于燃料种类、锅炉本体的排烟温度、工艺流体的温度、所需的低品位热能的数量、过量空气系数等。
Besides, the fuels with ultra-low level of sulfur or free of sulfur are required for hydrogen fuel cell if its hydrogen is produced from the fuels.
另外，在氢源燃料电池系统中，如果氢来源于燃料油，那么必须使用超低硫或无硫燃料油。
Besides, the fuels with ultra-low level of sulfur or free of sulfur are required for hydrogen fuel cell if its hydrogen is produced from the fuels.
另外，在氢源燃料电池系统中，如果氢来源于燃料油，那么必须使用超低硫或无硫燃料油。
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