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Heat loss in duct.xls
 
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Description:

KNOWN: Dimensions, average surface temperature and emissivity of heating duct. Duct air inlet temperature and velocity. Temperature of ambient air and surroundings. Convection coefficient.

FIND: a) Heat loss from duct.

ASSUMPTIONS: 1) Steady-state conditions.

2) Constant air properties.

3) Negligible potential and kinetic energy changes of air flow.

4) Radiation exchange between a small surface and a large enclosure.

Calculation Reference
Fundamentals of Heat and Mass Transfer - Frank P. Incropera

Submitted By:
John Doyle (JohnDoyle[Admin])
Submitted On:
29 Jan 2008
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67.00Kb
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