A homeowner's wood stove is equipped with a top burner for cooking. The D = 200-mm-diameter burner is fabricated of cast iron (k = 65 W/m · K). The bottom (combustion) side of the burner has 8 straight fins of uniform cross section, arranged as shown in the sketch. A very thin ceramic coating (s = 0.95) is applied to all sur- faces of the burner. The top of the burner is exposed to room conditions (Tsur,t = Too,t = 20°C, ht = 40 W/m2 · K), while the bottom of the burner is exposed to combus to ensure adequate airflow passage through the array.
Recommend a design that enhances chip cooling.