A sphere made of copper having 10 mm inner diameter is placed to an environment at...
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A sphere made of copper having 10 mm inner diameter is placed to an environment at 75°C. When the sphere is removed from this environment and exposed to air flow at atmospheric pressure (1 atm). The velocity of air is 10 m/s with a temperature of 23 °C. Eventually the temperature of the copper become 35°C. Calculate the heat transfer coefficient. @328K,copper →p=8933kg/m³,k=399W/mK, cp = 387J/kgK @296K, air →μ=181.6×10 7 Ns/m², k = 0.0258W/mK, Pr = 0.709 @328 K, air → u=197.8x107 Ns/m² A sphere made of copper having 10 mm inner diameter is placed to an environment at 75°C. When the sphere is removed from this environment and exposed to air flow at atmospheric pressure (1 atm). The velocity of air is 10 m/s with a temperature of 23 °C. Eventually the temperature of the copper become 35°C. Calculate the heat transfer coefficient. @328K,copper →p=8933kg/m³,k=399W/mK, cp = 387J/kgK @296K, air →μ=181.6×10 7 Ns/m², k = 0.0258W/mK, Pr = 0.709 @328 K, air → u=197.8x107 Ns/m²
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To calculate the heat transfer coefficient we can use the Newtons Law of Cooling equation which rela... View the full answer
Related Book For
Intermediate Accounting
ISBN: 978-0132162302
1st edition
Authors: Elizabeth A. Gordon, Jana S. Raedy, Alexander J. Sannella
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