Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" ... is proportional to the difference between the fourth powers of the absolute temperatures of the systems. "
Bulletin - Page 113
1912
Full view - About this book

Earth and Sun: An Hypothesis of Weather and Sunspots

Ellsworth Huntington - Sunspots - 1923 - 336 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...
Full view - About this book

A Course of Instruction in Instrumental Methods of Chemical Analysis

William Noble Lacey - Analytical chemistry - 1924 - 112 pages
...also approximates a black body, giving an energy transfer to the receiver which is proportional to the difference between the fourth powers of the absolute temperatures of the black bodies. This energy transfer is measured in the various instruments by having the receiving black...
Full view - About this book

Bulletin

1925 - 1064 pages
...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...
Full view - About this book

Transactions of the American Society of Mechanical Engineers, Volume 47

American Society of Mechanical Engineers - Mechanical engineering - 1926 - 1436 pages
...to study closely the laws of radiant heat as well as those of convection as applied to furnaces. as the difference between the fourth powers of the absolute temperatures of the hot and cold bodies. This takes the form H — Ä(7V — T2*), where H is the heat transferred in unit time, K a...
Full view - About this book

Transactions of the Institution of Engineers and Shipbuilders in ..., Volume 70

Institution of Engineers and Shipbuilders in Scotland - Engineering - 1927 - 1094 pages
...emitting and receiving radiant energy. The amount of heat transfer for an ideal black body varies as the difference between the fourth powers of the absolute temperatures of the hot and cold bodies, as H = K[T14-T34] (Stefan and Boltzmann's law). To get the greatest advantage, therefore, from...
Full view - About this book

Finding and Stopping Waste in Modern Boiler Rooms: A Reference ..., Volume 2

Cochrane Corporation (Philadelphia) - Steam engineering - 1928 - 816 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...angle of exposure to the cold surfaces of the boiler. (b) On the difference of the fourth powers of the absolute temperatures of hot and cold surfaces. In...
Full view - About this book

Cork Insulation: A Complete Illustrated Textbook on Cork Insulation--the ...

Pearl Edwin Thomas - Cold storage - 1928 - 562 pages
...surfaces, for it will be remembered that the rate of heat transfer by radiation is proportional to the difference between the fourth powers of the absolute temperatures of the surfaces involved, subject only to correction for losses due to imperfections in radiating and absorbing...
Full view - About this book

Homoiothermism: The Origin of Warm-blooded Vertebrates

Arthur Sperry Pearse, Frank Gregory Hall - Animal heat - 1928 - 142 pages
...determining factor in the amount of radiation from it. 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, if the area and nature of the surface remain constant. It follows then that...
Full view - About this book

The Stress of Hot Environments

D. McK. Kerslake - Science - 1972 - 336 pages
...detail in Chapter 3. For the present it is sufficient to indicate that although the process depends on the difference between the fourth powers of the absolute temperatures of the two surfaces, an approximation is often permissible whereby the rate of heat transfer is related to...
Limited preview - About this book

Whittington's Dictionary of Plastics, Third Edition

James F. Carley - Technology & Engineering - 1993 - 584 pages
...HEAT TRANSFER, ws, requiring no contact or fluid between the bodies. The net rate is proportional to the difference between the fourth powers of the absolute temperatures of the hotter and cooler bodies (7"i - 7^), and depends also on the thermal "color" of the bodies (their emissivities),...
Limited preview - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF