heat_transfer - Principle[s] and Objectives of Oven...

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Principle[s] and Objectives of Oven Operation: Utilize thermal energy released by fuel consumption [combustion] to raise temperature of an enclosed space/volume maintain control of enclosure temperature minimize heat transfer to environment maximize efficiency in fuel consumption minimize operation time Attributes of Operation:
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cC [+ C x H y O z ] + nO 2 = iCO + jCO 2 + H 2 O + …. H rxn released Heat of Combustion Sensible heat [Enthalpy Increments] [ ] = - n i T T rxn H H 2 1 [ ] ( 29 = 2 1 2 1 T T i p i T T C H Heat generated during combustion utilized in raising temperatures of all components of the system - food, air, reaction products, components of cooker - including walls….
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Objectives: Objectives: minimize fuel consumption minimize weight [wall thickness] minimize operation time The Model: The Model: heat introduced into “furnace” by reaction of fuel with oxygen in air heat lost from “furnace” through [i] sensible heat in output
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heat_transfer - Principle[s] and Objectives of Oven...

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