| 摘要 |
A heat recovery steam generator includes a casing having an inlet and an outlet, a boiler tube disposed in the casing, the boiler tube defining an inner cavity and an outer surface, the boiler tube having a cross-sectional shape with a longitudinal axis and a transverse axis, wherein a length of the longitudinal axis is greater than a length of the transverse axis, and at least one fin arranged on the outer surface of the boiler tube.
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