Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 483
ig. 380). The object ofthis is to arrest more completely the available heat in the hotgases flowing through the tube, so that from this extra metalthe heat may be abstracted by conduction. A somewhatsimilar function is discharged by what have been called re-tarders in the tubes. A cross-shaped bar… … Fig. 380. Fig. 381. rapid flow of gas at such a rate as would prevent completetransfer of heat to the tube. An objection to the ribbed tube is the difficulty in cleans-ing it when the gases deposit a sticky residue on the coolersurface of the metal. The retarders are cleansed by beingtaken out.…
Mechanical engineering · Steam power plants
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