Publisher's Synopsis
Excerpt from Transactions, 1894
Sm rarsmo, cost or: Paper on, by J. Holliday, 117. - Introduction 117. - Cost of steam raising considered as a factor in the cost of steam power, 117 - E?ect of a constant load in reducing the cost as compared with a varying load, 117. - Division of the total cost of steam raising under the heads of fuel, working expenses, maintenance and capital charges, 118. - Selection of the cost of evaporating gallons of water as the basis of comparison, 119. - The e?ect of various temperatures of feed water and pressure of steam, 122. - Cost of fuel, l2o.-cheap and inferior fuels compared with better qualities, 121. - The apparent economy and the drawbacks of inferior fuels, 121 - Description of the plant on which the author's experience in cost of working is founded; the fuel used, 122, and the cost of the same to evaporate gallons. - The weekly fuel bill for normal, special and average weeks, 123.-stokers' wages and hours on duty, night and Sunday work, 124.-superintendence, 124. - Removal of Refuse, 125. - Flue sweeping and boiler cleaning, 125. - Cost of water and purification of the same, l26. - Illumination of the boiler house, 127. - Stores, 127. - Steam used for auxiliary engines, 127 - Mainten ance of boilers, furnaces, brickwork of fines and furnaces, fwd pumps, economiser, &c., 128. - Insurance of boilers and buildings, 129. Capital expenditure on boilers, &c., buildings and chimney, interest and depreciation, rent of site, taxes, ac, 129. - The total cost per week, and per gallons evaporated, and the relative proportion of each, 131. - The costs per week, and per gallons evaporated of the steam made in the forced draught and natural draught boilers respectively, 132. - Table showing number of British thermal units in one pennyworth of fuel of various qualities and prices, 133. Discussion, 134. - Diagram.
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