| 1911 - 640 pages
...portion of the wall. On the other hand, the quantity of heat radiated through an air space depends upon the difference between the fourth powers of the absolute temperatures of the surface enclosing the air space. In the light of these laws, it is seen that no matter how high the... | |
| United States. Bureau of Mines - Mines and mineral resources - 1912 - 570 pages
...quantity of heat which a heating plate exposed to radiation receives is approximately proportional to the difference between the fourth powers of the absolute temperatures of the hot parts of the furnace and the sooted surface of the boiler plate. This law of radiation is known as... | |
| Heinrich Oscar Hofman - Metallurgy - 1913 - 982 pages
...The amount of heat lost by radiation depends upon the nature of the hot body and is proportional to the difference between the fourth powers of the absolute temperatures of the hot body and its surroundings. It has been determined by Peclet1 in gram. cal. per sq. cm. of surface fc'... | |
| Engineers' Society of Pennsylvania - Engineering - 1914 - 764 pages
...radiation from the fuel bed, which transmission both theory and experiment have shown to be proportional to the difference between the fourth powers of the absolute temperatures of the fuel bed and of the boiler tubes. If the heat transmitted by radiation be included, the average co-efficient... | |
| William Ernest Dalby - Steam engineering - 1915 - 816 pages
...asserts that the total radiation from a black body into the space surrounding it is proportional to the difference between the fourth powers of the absolute temperatures of the body and of the space. Let R be the Ib.-calories radiated from each square foot of the surface of a... | |
| Mechanical engineering - 1916 - 902 pages
...that is transmitted from the hot parts of the furnace to the boiler plate is closely proportional to the difference between the fourth powers of the absolute temperatures of the hot parts of the furnace and the boiler plate. CONVECTION Convection of heat always implies the motion... | |
| H. S. B. W. Cochrane Corporation, Philadelphia - Steam power plants - 1918 - 286 pages
...and smoke. Summarizing, it can be said that the quantity of heat imparted to a boiler by radiation depends (a) On the extent of the hot surfaces of the...cold surfaces of the boiler. (6) On the difference of the fourth powers of the absolute temperatures of the hot and cold surfaces. In any given steam... | |
| Horace Grove Deming - Chemistry - 1918 - 88 pages
...function of the velocity of the air current. The loss of heat by radiation is directly proportional to the difference between the fourth powers of the absolute temperatures of the radiating surface and the surrounding air, but is independent of the velocity of the air current. Show... | |
| David Burns - Biophysics - 1921 - 492 pages
...radiation from, and the temperature of, a body. The total heat-loss by radiation is proportional to the difference between the fourth powers of the absolute temperatures of the body and its environment as well as to the area and nature of the surface. If body and environment... | |
| American Ceramic Society - Ceramics - 1928 - 1058 pages
...portion of the wall, while the quantity of heat that passes across the air space in the wall depends on the difference between the fourth powers of the absolute temperatures of the surfaces enclosing the air space. Such information is hardly necessary to confirm the fallacy of attempted... | |
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