. Bulletin. on account of radiation of heat to thefiring room or to other parts of the building not intendedto be heated. (c) Losses up the chimney. The Loss through the Grate.—This loss is the result of allow-ing pieces of unburned or partially burned coal to pass through thegrate with the ashes to the ash pit. Though generally not large, thisloss is one which can be readily detected, and which, by exercisingcare in the selection of coal and in methods of firing, may easily bekept at a minimum. The loss of coal through the grate, when usingIllinois coal in a heater of sufficient size for its
. Bulletin. on account of radiation of heat to thefiring room or to other parts of the building not intendedto be heated. (c) Losses up the chimney. The Loss through the Grate.—This loss is the result of allow-ing pieces of unburned or partially burned coal to pass through thegrate with the ashes to the ash pit. Though generally not large, thisloss is one which can be readily detected, and which, by exercisingcare in the selection of coal and in methods of firing, may easily bekept at a minimum. The loss of coal through the grate, when usingIllinois coal in a heater of sufficient size for its work, should be sosmall as to make sifting of the ashes unnecessary. The Loss Due to Radiation of Heat to Basement.—Althoughit may be desirable to impart some heat to the firing room or basement,most of the heat so escaping from the heater should be regarded as a 40 ILLINOIS ENGINEERING EXPERIMENT STATION . , Chimney tosses Useful/y app//ed heaf Rsdiaf ion loss Gases 3oor 3~0% 5% JO% /07o m . . i . •. Tig. 16. Diagrammatic Chart Showing Distribution of All the Heat Avail-able in the Fuel Fired Under Conditions a Little More Favorable thanAre Usually Met with in Practice in House Heating Systems This illustration represents a warm-air furnace; similar relations hold in thecase of steam and hot-water units. The diagram is based on the convention thateach line radiating from the fuel bed represents 2% per cent of the total availableheat which could be obtained by completely burning all the coal contained in pot. PURCHASE AND USE OF COAL FOR HEATING HOMES 41 Radiation Chimney fossesUsefu/fy applied heat loss Gases Soot JO% J5% JO% 15 7o
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectenginee, bookyear1904
