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Essay / Research Paper Abstract
This 6 page paper examines heat transference mechanisms. The paper stars with a good overview of how heat is transferred and the equation for heat transfer rates. Following this the three different mechanisms; conduction, convection and radiation are each examined. The bibliography cites 1 source.
Page Count:
6 pages (~225 words per page)
File: TS14_TEheattran.rtf
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Unformatted sample text from the term paper:
heat transference; conduction, convection and radiation. To understand how and why heat will transfer we can consider heat as a process quantity and has the same relationship to thermal
energy as work has with mechanical energy. Heat will be transferred between areas where they there is not a thermal equilibrium, there will be the automatic flow of heat from
the warmer area to the cooler area. In all objects there is an inherent level of heat, or internal energy, the level of this heat will relate to the speed
at which the molecules or atoms are in motion. Where two objects meet the atoms are in different motion speeds there will be an energy exchange until the two objects
have reach thermal equilibrium, meaning where they are at the same temperature. The level of energy that is exchanged is the level of the heat exchanged (Rohsenow et al, 1998).
However, it should be remembered that heat is related to changes in the internal energy, heat and internal energy are not the same thing. The use of the term heat
is the description of the energy flow, the term internal energy is the energy itself. This may appear pedantic, but it is necessary when looking to understand the first law
of thermodynamics. In notation heat will usually be represented as a Q and measurement is in joules in SI units. The total heat, the heat flux and the heat
transfer rate may all use different cases of Q. So where there is an object that is absorbing heat from the surrounding area is will be noted as Q >
0 (+) and where the object is loosing heat to the surroundings this will be noted as Q < 0 (-). The heat transfer rate can be noted wit the
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