. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . to insure ignition. If a bank is built carefully, as al-ready described, enough air will be ad- burned from the bank itself and partfor reasons before stated will be drawntoward the front of the firebox. Herethe fire is comparatively thin and a fullsupply of air is admitted so that thecoke, of which the solid part of the coalconsists when it reaches this area, burnsrapidly, generating intense heat. Overthis heated space the hydrocarbonsevolved nearer the door, mixed nodoubt with a percentage
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . to insure ignition. If a bank is built carefully, as al-ready described, enough air will be ad- burned from the bank itself and partfor reasons before stated will be drawntoward the front of the firebox. Herethe fire is comparatively thin and a fullsupply of air is admitted so that thecoke, of which the solid part of the coalconsists when it reaches this area, burnsrapidly, generating intense heat. Overthis heated space the hydrocarbonsevolved nearer the door, mixed nodoubt with a percentage of carbon mon-oxide formed because enough air was 236 RAILWAY AND LOCOMOTIVE ENGINEERING June, 1908. net supplied through the thicker partsof the bank for its complete combustionand with the air admitted at the doormust pass, and conditions are thus fur-nished, as nearly as it is possible to se-cure them, favorable for their completetransformation into carbon dioxide andwater vapor with the consequent pro-duction of heat. In aiding to secure the second of theconditions noted as necessary for per-. THE CALEDONIAN LAST WINTER. feet combustion; namely, the thoroughmixing of the air and the unconsumedfurnace gases, the bank performs a ser-vice that should not be a fire kept below the level of thedoor, the air which enters here willpass in a more or less unbroken columnto the flue sheet and become only im-perfectly mixed with the gases beinggenerated. Upon being obstructed bythe back slope of the bank, however,ii will be broken into a spray, or atleast spread out into a thin sheet, and inthis form will become much better mixedwith the firebox gases. If we imaginewater instead of air as being drawn rap-idly into the firebox and the back slopeof the bank to be a steel plate strongenough to withstand such a column ofwater, we can more readily understandthis action. A further advantage of thebank in this connection is that the dooropening may be partially closed withit i
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
