Heat and Mass Transfer
Yunus Cengel, Afshin J. Ghajar
9780073398181
Heat Transfer Class Notes Day 1
Brief and simple introduction to Heat transfer. Includes the following:
a few definitions, comparison between Thermodynamics and Heat Transfer, 1st law of Thermo, properties that depend on temperature and conversion factors for temperature units.
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Heat Transfer Day 3
These lecture notes include two class problems on conduction. The first problem shows one way to find the heat flux of an object with a given temperature distribution. The second problem shows how doubling a window's thickness can impact its rate of heat loss. The class notes give the heat conduction (Fourier's) equation in one dimension and the definition of the gradient operator (upside-down delta).
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Heat Transfer Day 4
Includes two class problems; first shows the heat generation in an electrical wire and second shows the heat lost from a person to a room due to convection and radiation. The first law of thermo is applied to both problems and will continue to be a valuable approach. The class notes touch more on convection and radiation with their equations and the definitions of the variables in them.
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Heat Transfer Day 2
Shows the first law of thermodynamics, total energy generation rate for a volume, heat flux and the three ways in which heat is transferred. First law (a.k.a. energy balance) is expressed two ways; first, as a change from an initial time to a final time and second, on a per unit time basis (derivative form). Mentions the three ways heat is naturally transferred between materials.
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Heat Transfer Day 5
There are two in-class problems;
1. Given a pond and its rate of heat generation per unit mass, the rate of heat generation for the whole pond is found (in variable form).
2. For a cylindrical container holding radioactive waste, heat is generated at a given rate per unit mass (indicated by e). Expressions for the heat generation rate of the whole container and the temperature at its outer surface are found.
The in-class notes review the equations for convection and radiation. Also, a couple sources for heat generation are mentioned.
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