Dave Dickey Forum Moderator 292 Posts
Re: Calculating torque exerted by liquid5 October 2006 at 1:29pmThe question contains about half the information necessary for a specific answer, but reading into the question several important assumptions, I offer the following:
First, 300-mm diameter pitched-blade turbines in a 2,000-mm diameter tank are about as small as practical. Second, the 250 cp has almost no effect on the power and mixing requirements, however, I have assumed that the density is 1,500 kg/m3. Rotating the mixer at 5.83 rps will require at least a 1,500 Watt motor, but a 2,250 W motor would be better.
Answer: 40 N m torque higher torque at higher rotational speed, lower torque at lower speed. The lower speed may not mix well.
We have a vessel of 6,500-L capacity. It needs to be driven by a top agitator with 2 Nos. of turbine impeller with four 300-diameter blades. I want to know the torque exerted by the liquid. The viscocity of the liquid is 250 cp.
Have an insight or suggestion?
Login or register to post a comment.