Heat Transfer - Challenge 1

Excel Calculator to Estimates the temp. distribution inside a cylindrical battery pack

The estimation of the temperature inside a battery cell requires accurate information about the cooling conditions even when the battery surface temperature is measured

cylindrical coordinates

by Fourier's law, the heat is directly proportional with respect to time so heat rate change.

T1 (x) = k1x + k2

Y= mx + c

k1 = Tr - tc / l

• Energy Balance Equation

Analytical calculation

By using Governing eqn

Tr + Tl /2

Assume Tr = 350 k, Tl = 100k ,

by using the Excel CFD Calculator,

Conclusion

1. We learned a method to estimate the temperature distribution in cylindrical batteries under unknown cooling conditions is proposed. For, a radially distributed 1-D thermal modeling approach for a cylindrical battery cell is considered.
2. Learned a CFD Solver ( Calculator ) by using Excel Worksheet
3. Learned Temp. Distribution & Energy Balance Equation & its Analytical Approach