Engineering, 13.11.2019 07:31, hartmaaj95

9.21 a household oven door of 0.5-m height and 0.7-m width reaches an average surface temperature of 32℃ during operation. estimate the heat loss to the room with ambient air at 22℃. if the door has an emissivity of 1.0 and the surroundings are also at 22℃, comment on the heat loss by free convection relative to that by radiation.

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9.21 a household oven door of 0.5-m height and 0.7-m width reaches an average surface temperature of...