13
Jun
Equivalent Diameter Heat Exchanger. 16 rows The equivalent diameter of a rectangular tube or duct can be calculated as Huebscher de 130. The initial plate spacing for the hot stream is 00043 m and for the cold stream is 00088 m and the core diameter is 00508 m. Concentric Tube or Pipe Heat Exchangers are used in a variety of industries for purposes such as material processing food preparation and air-conditioning. I do calculate the Reynoldsnumber with the hydraulic diameter of the entire tube bank within the shell to obtain the heat transfer coefficient of the plain tubes.
This induces forced convection transferring heat tofrom the. Deq Di2 - do2do. 1 414 wetted perimeter 4free -. To calculate Equivalent diameter of the tube for transverse fin heat exchanger you need Reynolds Number Re. The equivalent diameter is 4 times the flow area over the wetted perimeter. They create a temperature driving force by passing fluid streams of different temperatures parallel to each other separated by a physical boundary in the form of a pipe.
Heat exchangers analysis and heat translate calculations are provided.
If you limit the discussion to finned circular tubes changes in the fin shape eg. De equivalent diameter of shell side m The shell-side heat transfer coefficient ho is then calculated as. If you work this out with a simple circular tube then the equivalent diameter is the diameter of the tube as you would expect it to be. I do calculate the Reynoldsnumber with the hydraulic diameter of the entire tube bank within the shell to obtain the heat transfer coefficient of the plain tubes. The correlation showed excellent agreement 2b Where n is equal to 2 for a single U-tube system and is corresponding to 2 do for double U-tube ground heat exchanger. They create a temperature driving force by passing fluid streams of different temperatures parallel to each other separated by a physical boundary in the form of a pipe.