311_guide6 - True or false. 7. Mathematically define...

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ME 311 Reading Guide #6 1/1 ME/NE 311 Introduction to Thermal and Fluid Sciences Reading Guide #6 Chapter 3 Sections 5, 7 and 8 Section 3.5: Resistance Analogy (Conduction and Convection) 1. Convection and conduction heat transfer (a flow of energy) are proportional to a difference in ______________________________________, which serves as the driving force for heat transfer. 2. The convective or conductive flow of energy by way of heat is analogous to a flow of ___________________________, according to Ohm’s law. 3. Electrical resistance is analogous to __________________________ resistance. 4. Mathematically define conductive resistance for planar geometries (page 98). _______________________________________ 5. Mathematically define convective resistance. _____________________________________________________ 6. The total thermal resistance for thermal resistances in series is the sum of the resistances.
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Unformatted text preview: True or false. 7. Mathematically define conductive resistance for cylindrical geometries (page 103). _______________________________________ Section 3.7: Resistance Analogy (Radiation) 1. The equation representing radiation heat transfer is linear. True or false 2. By factoring the difference in temperature raised to the fourth power, an analogy between radiation heat transfer and electrical current can be developed. True or false 3. Convective heat transfer and radiation heat transfer regularly occur in parallel. True or false 4. Radiation is considered significant when convection is natural and occurs in the presence of a ______________. Section 3.8: Combined Thermal Resistances 1. Conductive resistances occur only in series, never in parallel. True or false...
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This note was uploaded on 05/16/2011 for the course ME 311 taught by Professor Alexia during the Spring '11 term at University of Oregon.

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