Example of calculating average fuel temperatures in a PWR

The relationship between neutron density and power density at the start of life has been derived in equation 

Hence for a typical core-average neutron density, n = 1.6 X 10, the core-average power density is f = 

Fuel thermal Effective heat transfer Cladding thermal Heat transfer coefficient 

Segment number Power density ratio Power density in segment fc MW/m Heat deposited in/transferred from segment of pin, w Coolant temp °C Average fuel temp °C Centre fuel temp °C 

We may also calculate the fuel temperature at the centre of each segment through replacing by To., 

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