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Unformatted text preview: Fouriers Law heat transfer is Q-dot = k t A(T/x) where k t is thermal conductivity k t A(dT/dx) Convection mostly in liquids, relies on the fact that particles could move Q-dot = hA(T s- T ) where h is a huge function, A is surface Area Radiation Q-dot = A(T s- T ) Work any energy crossing a system boundary that is not heat transfer o Forms of Work Flow work/flow energy How much energy it takes to push it into the control volume o Pressure/density Mechanical energy energy that can be converted to work if using a perfect turbine e mech pressure/ + ke + pe o W = work W = W/m o W-dot = power = rate of work o w => integral of delta w from 1 to 2 is work o W = Fx = integral Fdx from x1 to x2 w = integral F/A x Adx from x1 to x2 = integral of pdV from V to V x F p 1 p 2 2 t...
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- Fall '08