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able according action affluent apparatus application atmospheric pressure augmented boiler calculate chamber cloth cold water condensing Consequently consider considerable contracted corresponding difference discharge draining drawn ejector employed engine entering equal equation equivalent escape experiment expression Fahr feed water feeding final five atmospheres flow formula Giffard injector give greater heat units height Illustrated important increases internal heat introduced Iron jet of steam kilogramme kilogramme of steam kilogrammetres liquid living force locomotive lower machines maximum means mechanical meters metres mixture nearly necessary neglected nozzle opening ordinary perature performance pipe plates Practical principle produced proportion pump quantity of heat reservoir space steam injector steam jet supply Suppose sure temperature theory tion Treatise tube ture vacuum vapor varies velocity water raised weight of water whence
Сторінка 10 - D in order to increase the useful section of this orifice, or, we should lessen the quantity of steam of the jet by diminishing the orifice A by the conical rod T. Thus the conditions of the proper working of the apparatus are: 1st. That all of the jet of steam A be condensed by affluent water; 2d. That the temperature of the mixture be lower than the temperature of corresponding saturation at the mean pressure of G. In case that the chamber G communicates with the atmosphere, the temperature of...
Сторінка 9 - The condition that the liquid jet, through the tube EE, is uninterrupted assumes that the jet is at too low a temperature to be transformed into steam at the atmospheric pressure in its passage through the chamber G G. Hence its temperature should be below 100°. Should the temperature exceed 100° the working of the apparatus is imperfect. We are warned by a production of steam which fills up the chamber GG and which escapes by the discharge pipe HH.
Сторінка 72 - The mixture of steam and air is introduced into a reservoir containing bits of coke crushed and washed by a current of cold water. The steam is condensed and the air escapes mostly free from steam. As a means of forcing currents of air for purposes of ventilation this method of M. Siemens is worthy of consideration.