- #1
gerry7
- 7
- 0
Hi all, I have a (probably very simple) problem that I need some help with. If I have a body of water in which the temperature of the water, ambient air temperature and mass of the water is known; how do I calculate the rate of heat loss from the water?
Using Q=m*cp*(Twater-Tair) I can find out the total heat lost when the water drops to ambient temperature, but how do i calculate the rate at which heat is lost? I should also note that the mass of the water is also dropping due to evaporation and liquid water loss. Can I integrate the above equation knowing the two mass values to get the rate of heat loss?
Or am I going about this completely wrong and need to take into account the surface area of water. (Heat is assumed to be lost equally in all directions)
Thanks,
Gerald
Using Q=m*cp*(Twater-Tair) I can find out the total heat lost when the water drops to ambient temperature, but how do i calculate the rate at which heat is lost? I should also note that the mass of the water is also dropping due to evaporation and liquid water loss. Can I integrate the above equation knowing the two mass values to get the rate of heat loss?
Or am I going about this completely wrong and need to take into account the surface area of water. (Heat is assumed to be lost equally in all directions)
Thanks,
Gerald