Shell Side Fluid Velocity of Baffled HX & Re - Nobody knows last resort

AI Thread Summary
Calculating the shell side fluid velocity for a baffled shell and tube heat exchanger (HX) is challenging, particularly when determining the Reynolds number for this flow. Key variables include mass flow rate, number of tubes, tube bundle length, number of baffles, and the inside diameter of the shell, along with fluid properties like specific heat, density, and viscosity. Users note that while calculating the tube side velocity is straightforward, the shell side presents more complexity. A recommended resource for further guidance is a specific book that addresses these calculations. Overall, assistance is sought to clarify the equations and methods applicable to this scenario.
PHYS&MECHE
Messages
2
Reaction score
0
Shell Side Fluid Velocity of Baffled HX & Re -- Nobody knows last resort

Problem:
I need to know how to calculate the shell side fluid velocity for a Shell&Tube HX with *Baffles*. Also, the reynolds number for this flow

Known:
ms -Mass flow on shell side
Nt -Number of tubes
Lt -Length of tube bundle
Nb - Number of Baffles
Dis -Inside Diameter of Shell
Vs -Volumetric flow rate

--Also I know all fluid properties for shell side fluid i.e. Cp, rho, viscosity...

Comments: I have completed this for the tube side it was very simple but the shell side is difficult and can not find any equations to apply.

Design Engineer needing help!
 
Engineering news on Phys.org
Last edited by a moderator:


I will have to order the book I can't seem to figure it out. Thank you.
 

Thread 'Race car suspension Class'

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Thread 'Cantilever help'

I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
View full post »

Similar threads

Understanding Reynold's Number & Characteristic Length
Replies
14
Views
12K
Fluid Flow Problem-Viscous Flow
Replies
5
Views
3K
Fluid Dynamics–Find pipe diameter,head loss & actual mean velocity.
Replies
5
Views
11K
Is Water or Air More Viscous at High Reynolds Numbers?
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top