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Books Books 1 - 10 of 25 on ... proportional to the difference between the fourth powers of the absolute temperatures....
" ... proportional to the difference between the fourth powers of the absolute temperatures of the hot parts of the furnace and the boiler plate. "
Bulletin - Page 105
1912
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Bulletin

Mines and mineral resources - 1912
...absorbed by the boiler. The quantity of heat which a heating plate exposed to radiation receives is approximately proportional to the difference between...the boiler plate. This law of radiation is known as the Stefan and Boltzmann law.0 About 30 years ago Stefan deduced this law from experimental results,...
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General metallurgy

Heinrich Oscar Hofman - Metallurgy - 1913 - 909 pages
...all directions. 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 for...
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Journal of the Engineers Society of Pennsylvania, Volume 6

Engineers' Society of Pennsylvania - Engineering - 1914
...directly by 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...
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Steam power

William Ernest Dalby - Steam engineering - 1915 - 760 pages
...body. This law 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...
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The International Operating Engineer, Volumes 29-30

1916
...quantity of heat that is transmitted from the hot parts of the furnace to the boiler plate is closely proportional to the difference between the fourth...temperatures of the hot parts of the furnace and the boiler plate. CONVECTION Convection of heat always implies the motion of a fluid receiving or giving...
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A Manual of Chemical Nomography

Horace Grove Deming - Chemistry - 1918 - 71 pages
...and to some 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...
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An Introduction to Biophysics

David Burns - Biophysics - 1921 - 435 pages
...between the amount of 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...
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Earth and Sun: An Hypothesis of Weather and Sunspots

Ellsworth Huntington - Sunspots - 1923 - 296 pages
...able to cool by radiation more rapidly than can cool air in low latitudes, for the radiation varies as the difference between the fourth powers of the absolute temperatures of the radiating and receiving bodies. The difference between the fourth powers of 290 and 300 (absolute...
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Bulletin

1925
...furnace itself. RADIATION LOSSES The Stefan-Boltzman law states that the energy radiated by a hot body is proportional to the difference between the fourth powers of the absolute temperatures of the hot body and its surroundings. An emissivity coefficient is necessary in order to calculate the actual...
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Elements of Applied Thermodynamics

Robert McCain Johnston - Thermodynamics - 1951
...equation, their general magnitudes and the fact that the rate of radiant heat exchange is a function of the difference between the fourth powers of the absolute temperatures of the surfaces of the bodies involved. In addition to solids and liquids, certain gases are capable of absorbing...
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