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Waste Heat Recovery 101

机译:余热回收101

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摘要

Waste-gas heat losses are unavoidable in the operation of all fuel-fired boilers, ovens, dryers, furnaces and kilns. Air and fuel are mixed and burned to generate heat, and a portion of this heat is transferred to the heating device and its load. When the energy transfer reaches its practical limit, the spent combustion gases are removed (exhausted) from the heat processing equipment via a flue or stack to make room for a fresh charge of combustion gases. At this point, the exhaust flue gases still hold considerable thermal energy - at times, more than what was left behind in the process. In many fuel-fired heating systems, this waste heat is the greatest source of heat loss in the process and can be greater than all the other losses combined.
机译:在所有燃油锅炉,烤箱,干燥机,熔炉和窑炉的运行中,废气热量损失是不可避免的。空气和燃料混合并燃烧产生热量,一部分热量传递给加热装置及其负载。当能量传递达到实际极限时,用过的燃烧气体通过烟道或烟囱从热处理设备中去除(排出),从而为新鲜的燃烧气体腾出空间。在这一点上,废气仍然保留着相当多的热能,有时甚至超过过程中所剩下的热量。在许多燃油加热系统中,这种废热是该过程中最大的热损失源,并且可能大于所有其他损失的总和。

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