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NordheimFuchs Model 
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#1
Jan113, 12:08 PM

P: 142

I am looking at the equations for maximum flux/power and energy deposited from the power pulse with reactivity increase >1$ in the NordheimFuchs Model:
P=[itex]\frac{\Lambda \omega^{2}}{2\alpha_{FT}K}[/itex] E=[itex]\frac{2(\rho\beta)}{K\alpha_{FT}}[/itex] With a negative temperature coefficient (\alpha_{FT}), shouldn't the above equations be negative? I've looked at other examples that include reactors with a negative temp coefficient, and they all produce a positive value (they don't show the calculations, just the graphs). It seems like that just ignore the negative sign, but I want to know why. 


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