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Heat Transfer

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A patient lying in bed is completely covered by a 10mm thick blanket. Above the blanket the air is still and the convective heat transfer coefficient in still air is approximately 3 Wm^-2K^-1. The patient’s skin temperature is stable at 36 degrees Celsius and the air in the hospital is 24 degrees Celsius. What is the rate at which the patient loses heat due to convection and conduction over 1 square metre (in W)?
[The thermal conductivity of the blanket is 0.03 Wm^-1K-1


Asked Anurag Ganugapati

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