40 likes | 183 Views
Case 1: hand calc comparison model. 18.1 cm. Uniform heating of block using equiv volume heat generation (36.3W) Same surface area (982 cm^2) Radiation to “space” node at 298K (view factor=1) Smaller mass than hand calc Emissivity = 0.1. 18.1 cm. 4.55 cm. Case 1: comparison results.
E N D
Case 1: hand calc comparison model 18.1 cm • Uniform heating of block using equiv volume heat generation (36.3W) • Same surface area (982 cm^2) • Radiation to “space” node at 298K (view factor=1) • Smaller mass than hand calc • Emissivity = 0.1 18.1 cm 4.55 cm
Case 1: comparison results • Steady state temperature same as hand calc • 520 K • Transient temperature equal if we set the hand calc mass equal to FEA model mass
Case 2: SS block with circular heating Steady state results
Case 2: SS block with circular heating • Transient results