Hi there!
Is there anyone who can tell me how you can calculate the pressure drop in a 5-sections bending of 180 degrees, where the inner radius is nearly zero?
I´m talking about a square duct with the following measurements:
section 1: 0.496 mtr
section 2: 0.354 mtr
section 3: 0.251 mtr...
Is there anyone who can tell me what the equation for the correction factor of a LMTD in a crossflow heat exchanger is? I only can find charts of this correction factor, but no equation...