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# class 24 - Click to edit Master subtitle style Free...

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Unformatted text preview: Click to edit Master subtitle style 8/13/11 Free Convection: Horizontal Plates and Other Geometries Chapter 9 8/13/11 An electrical heater in the form of a horizontal disk of 400mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5oC. Find the power required to maintain the heater surface at 70oC. What situation would this be considered? a) Upper surface of hot plate b) Lower surface of cold plate c) Lower surface of hot plate d) Upper surface of cold plate 8/13/11 An electrical heater in the form of a horizontal disk of 400mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5oC. Find the power required to maintain the heater surface at 70oC. Plan: a) State governing equations(s) b) Look up properties c) Calculate characteristic length d) Find Rayleigh number e) Find appropriate correlation f) Find h, then q 8/13/11 An electrical heater in the form of a horizontal disk of 400mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5oC. Find the power required to maintain the heater surface at 70oC. 8/13/11 An electrical heater in the form of a horizontal disk of 400mm diameter is used to heat the bottom of a tank filled with engine oil at a temperature of 5oC. Find the power required to maintain the heater surface at 70oC. 8/13/11...
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## This note was uploaded on 08/13/2011 for the course CHEM 3210 taught by Professor Degrazia during the Fall '10 term at Colorado.

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