Answer to Question #344473 in Mechanical Engineering for Eyaaaah

Question

A bakery oven is constructed of refractory material having an

average thermal conductivity of 0.8 Btu/hr-ft-F. The inside dimension

of the oven are 7’ x 6’ x 2’. If the wall of the oven is 4.5 in. thick and

the temperature of the inner and outer surfaces are 1200F and 200 F,

respectively, what is the total heat loss per day in the oven wall?