A droplet of water is placed in dry stagnant air of constant tempera- ture Tr. The droplet evaporates and cools to an eq

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A droplet of water is placed in dry stagnant air of constant tempera- ture Tr. The droplet evaporates and cools to an eq

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A Droplet Of Water Is Placed In Dry Stagnant Air Of Constant Tempera Ture Tr The Droplet Evaporates And Cools To An Eq 1
A Droplet Of Water Is Placed In Dry Stagnant Air Of Constant Tempera Ture Tr The Droplet Evaporates And Cools To An Eq 1 (307.8 KiB) Viewed 24 times
A droplet of water is placed in dry stagnant air of constant tempera- ture Tr. The droplet evaporates and cools to an equilibrium tempera- ture T. (a) To estimate T, derive the equation -kair Nu(Tw-T) = AD12Pair Sh 1 W10 - Wis 1 - @ 10 Sh where A is the water latent heat of vaporization, Nu = hD/k, and Dhp/D12, neglecting both thermal radiation (it is likely to be considerable since convection is so low in a stagnant situation) and blowing effects on heat transfer. (b) Show that the result of part a can be reduced to سخ داده 20.00 امت زدن
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