|MadSci Network: Physics|
My students while attending a physics/engieneering competition encountered a simple question for which i have no answer. Will it require less fuel to fly at and maintain a given altitude in a hot air balloon on a hot day or a cold day? (notice that it would be the same altitude in both cases) My first thought was that on a cold day, the balloon would radiate heat to the surrounding environment faster than on a hot day, when the temperature inside the balloon was closer to the surrounding air temperature. However I am not certain and would like to find the answer to this question which has vexed me for quite some time. Thankyou for any help.
Re: Does it take less fuel to fly a hot air balloon on a hot day or a cold day
Try the links in the MadSci Library for more information on Physics.