 | 1831 - 774 páginas
...heat they can convey, when that conveyed by an equal volume of water is unity. " 16. If the cubic feet of air to be heated per minute be multiplied by the...the result will be the feet of surface of iron pipe, &c., required. Thus, if 1000 cubic feet per minute are to be warmed, and the extreme case is supposed... | |
 | 1831 - 780 páginas
...the number of degrees it is to be warmed, and the result be divided by twice the difference betw_een the temperature of the house and that of the surface...the result will be the feet of surface of iron pipe, &c., required. Thus, if 1000 cubic feet per minute are to be warmed, and the extreme case is supposed... | |
 | Sir Joseph Paxton - 1836 - 382 páginas
...tinned iron, earthenware, &c., are employed for pipes, much more surface is necessary. If the cubic feet of air to be heated per minute be multiplied by the...the result will be the feet of surface of iron pipe, &c., required. It is known from experience, that the heat which raises the temperature of one cubic... | |
 | Sir Joseph Paxton - 1836 - 384 páginas
...the result be divided by twice the difference between the temperature of the house and that of tic surface of the pipes, the result will be the feet of surface of iron pipe, &c-, required. It is known from experience, that the heat which raises the temperature of one cubic... | |
 | Charles McIntosh - 1853 - 916 páginas
...of air. " If the cubic content of air to be heated per minute," says thefirst of these authorities, "be multiplied by the number of degrees it is to be...when the external air is 20°, the house should be 50°; and therefore the air is to be warmed 30° ; — and with water the surface will be 190° when... | |
 | Charles McIntosh - 1853 - 916 páginas
...air. " If the cubic content of air to be heated per minute," says thefirst of these author! ties/'be multiplied by the number of degrees it is to be warmed,...when the external air is 20°, the house should be 50°; and therefore the air is to be warmed 30° ; — and with water the surface will be 190° when... | |
 | 1874 - 546 páginas
...the cubic feet of air to be heated by the number of degrees the house is to be warmed, and the result divided by twice the difference between the temperature...of the house and that of the surface of the pipes will be the feet ol piping required." In using this formula we must bear in mind that the temperature... | |
 | Robert Morris Copeland - 1866 - 944 páginas
...boiler is determined by its shape, setting, and the distance between the furnace bars. Messrs. Tredgold and Hood, in England, have made the most reliable...that of the surface of the pipes, the result will be the.feet of surface of iron pipe required. " Thus, if 1000 cubic feet per minute are to be warmed,... | |
 | F. A. Fawkes - 1881 - 294 páginas
...of air to be heated per minute " by the number of degrees the house is to be warmed, and the result divided " by twice the difference between the temperature...the house and that of " the surface of the pipes, will be the feet super of piping required." These calculations apply to stoves, forcing-houses, &c.... | |
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If the cubic feet of air to be heated per minute be multiplied by the number of degrees it is to be warmed, and the result be divided by twice the difference between the temperature of the house and that of the surface of the pipes, the result will be... 