1. The problem statement, all variables and given/known data A fire fighter (approximated by a two-sided black surface at 310 K 180 cm long and 40 cm wide) is facing a large fire at a distance of 10 m (approximated by a semi-infinite black surface at 1500 K). Ground and sky are at 0 °C (and may also be approximated as black). What are the net radiative heat fluxes on the front and back of the fire fighter? 2. Relevant equations q = ε.σ.T4.A.Fij 3. The attempt at a solution I have problem identifying the view factor in this case. Can anyone help me? Thanks.