How to solve volumetric heat production formula

1. Oct 13, 2015

semih

For spherical geometry, how can we solve volumetric heat production formula ? q=(Σ*Φ*A*C)/V for example if triso fraction rate is five percent of total fuel rod volume, how can we calculate volume (V) in the formula?

2. Oct 13, 2015

Astronuc

Staff Emeritus
What are A and C? What is the basis of Σ?

Given q=(Σ*Φ*A*C)/V, then V = (Σ*Φ*A*C)/q.

3. Oct 13, 2015

semih

A, first-wall surface area [cm2]. C, energy conversion factor (constant),200 [MeV] x 1.602189.10-13[J]. Σ, integral fission rate in the first fuel row [fission/neutron]. I want to ask that whether should we use V*(5/100) or only V while we find q ? Because of core fraction rate in fuel rod. In terms of above example.