Heat transfer from hot liquid, through wall to cold liquid below.
Heat transfer from hot liquid, through wall to cold liquid below.
(OP)
Hi,
Could anyone help with following, I'm calculating total heat flux from liquid heated by heaters to exterior. Walls of the tank containing heated liquid are surrounded by air, only bottom wall is connected to another tank containing constant (lower) temperature liquid. I've calculated heat transfer coefficients (h) for top and vertical walls using known correlations for natural convection. The problem is that, I'm not sure, how should I treat bottom wall. Should I treat the heat transfer from heaters to lower temperature liquid as a conduction? Through layer of fluid and bottom wall?
Kind regards,
Mariusz
Could anyone help with following, I'm calculating total heat flux from liquid heated by heaters to exterior. Walls of the tank containing heated liquid are surrounded by air, only bottom wall is connected to another tank containing constant (lower) temperature liquid. I've calculated heat transfer coefficients (h) for top and vertical walls using known correlations for natural convection. The problem is that, I'm not sure, how should I treat bottom wall. Should I treat the heat transfer from heaters to lower temperature liquid as a conduction? Through layer of fluid and bottom wall?
Kind regards,
Mariusz





RE: Heat transfer from hot liquid, through wall to cold liquid below.
You have a convective heat transfer from the hot fluid to the tank floor, conduction through the tank floor plus convective heat transfer to the cold liquid. Fouling, if there is any, would be another factor on one or both sides of the tank wall.
RE: Heat transfer from hot liquid, through wall to cold liquid below.
RE: Heat transfer from hot liquid, through wall to cold liquid below.
RE: Heat transfer from hot liquid, through wall to cold liquid below.
RE: Heat transfer from hot liquid, through wall to cold liquid below.
rmw
RE: Heat transfer from hot liquid, through wall to cold liquid below.
TTFN

FAQ731-376: Eng-Tips.com Forum Policies
RE: Heat transfer from hot liquid, through wall to cold liquid below.
rmw
RE: Heat transfer from hot liquid, through wall to cold liquid below.
TTFN

FAQ731-376: Eng-Tips.com Forum Policies