Tube and Shell heat exchanger?

[kickflip_mj]

I know this has been talked about before. are they more efficient?

 

[orangehero]

What kind of tube and shell heat exchanger is more efficient than what?

 

[kickflip_mj]

What kind of tube and shell heat exchanger is more efficient than what?

More efficient than couterflow chiller? Tube and shell, wort goes through multiple tubes inside one larger tube.

http://www.frigotherm.co.za/shell_tube_heat_exchangers.htm

 

[orangehero]

I know what it is, I mean what size and materials are we comparing? Are you not satisfied with your counter-flow chiller?

 

[Quaker]

Tube and shell heat exchanger effectiveness is primarily driven by prime surface (hot liquid on one side and cold directly on the opposite surface). This is the same for a counterflow chiller. So it comes down to total surface area and the rate of flow of each fluid across them. Some counterflow chillers have a convoluted inner tube to increase turbulence, but the same is true in many shell and tube designs too. To get a more exact prediction than simply surface area comparisons you need to dig out the thermal dynamics formulas.

You didn't ask about plate coolers, but they are the most compact designs due to smaller passages disrupting the boundary layers in the fluids, causing turbulence plus more surface area as well. Some designs will use inserted fins to further increase the avenues for heat transfer beyond just prime surface.

 

[kickflip_mj]

So off the top of my head. most CFC are 12 ft with 3/8" tubing. that you can only cram so much fluid in at a time. A tube and shell say I take a 3" X 12" tube and can fit about 20 3/8 tubes in it. I could open a march pump up full bore and should get a significant amount of cooling in comparison. (im not good at thermodynamics)

 

[Stealthcruiser]

You just like the looks of a tube and shell heat exchanger...............

 

[Ben58]

Go for a helical baffle design with duplex SS tubes. Far more efficient than standard tube and baffle layouts.

 

[kickflip_mj]

You just like the looks of a tube and shell heat exchanger...............

yes and Id like to get the temps down faster. 15 gallons on a convolted is still pretty slow