Four Rules of Heat Transfer Series, Rule No. 2 Heat Transfer is Proportional to Area

摘要

"Proportional: The comparative relation in size, amount etc. between things: ratio." So says Webster's. In our last installment we learned that heat transfer is proportional to temperature difference. If there is twice the temperature difference between two objects transferring heat, there will be twice the heat transfer rate. Now we're going to learn about something else that is proportional to heat transfer.