Heat transfer by convection between water in a pool and atmosphere
Heat transfer by convection between water in a pool and atmosphere
(OP)
Hi,
I am trying to calculate the net heat transfer between an open pool filled with water and the atmosphere. Have taken into account radiation, evaporation.
Having difficulties calculation the conduction from the water to the ground and from the water to the atmosphere. The water is warmer than the atmosphere and the ground.
Can anyone help or send me to a good reference?
Thanks!
I am trying to calculate the net heat transfer between an open pool filled with water and the atmosphere. Have taken into account radiation, evaporation.
Having difficulties calculation the conduction from the water to the ground and from the water to the atmosphere. The water is warmer than the atmosphere and the ground.
Can anyone help or send me to a good reference?
Thanks!





RE: Heat transfer by convection between water in a pool and atmosphere
Free heat transfer textbook.
http://web.mit.edu/lienhard/www/ahtt.html
RE: Heat transfer by convection between water in a pool and atmosphere
Google the "Burnham Heating Helper". On page 28 is the simple chart & calcs required.
RE: Heat transfer by convection between water in a pool and atmosphere
Downloaded the Burnham helper. Can't find the chart & calcs you've referred to. Do you know in what chapter it appears?
RE: Heat transfer by convection between water in a pool and atmosphere
I found the page - 42.
RE: Heat transfer by convection between water in a pool and atmosphere
RE: Heat transfer by convection between water in a pool and atmosphere
Not saying anything anyone has said here is wrong, only bringing up the issue in case it hasn't been considered.
RE: Heat transfer by convection between water in a pool and atmosphere
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Heat transfer by convection between water in a pool and atmosphere
There's a table in the Heating Helper that provides factors for wind.
And note that the Heating Helper is just a small, softcover publication for residential/small commercial heating contractors. Having said that, I've used it to help size a couple of pool HXs, supplied from the hot water boiler that heats the house in the winter - it works.
If you need something for an in-depth engineering study of pool heat loss, then the Heating Helper is not the publication you're looking for. If you want to just cut-to-the-chase to the correct answer, well, it's hard to argue with success.
RE: Heat transfer by convection between water in a pool and atmosphere
How does evaporation heat the air? Have you never seen an evaporative air cooler?
Engineering is the art of creating things you need, from things you can get.
RE: Heat transfer by convection between water in a pool and atmosphere
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Heat transfer by convection between water in a pool and atmosphere
Engineering is the art of creating things you need, from things you can get.