Calculating Compost Cylinder Drive Motor Requirements

AI Thread Summary
To determine the horsepower needed to rotate a steel compost cylinder containing approximately 0.75 tons of raw compost, key factors include the cylinder's dimensions (1.8m outer diameter, 2.8m length) and the desired rotation speed of 3 RPM. The setup involves a central 3-inch outer diameter steel tube supported by two plumber block bearings. It's essential to consider the presence of baffles or paddles inside the cylinder, as these can significantly affect mixing efficiency and resistance. Additionally, calculating the required horsepower will necessitate accounting for friction and resistance factors. Accurate calculations will ensure effective compost mixing and optimal motor performance.
fabricator
Messages
1
Reaction score
0
Help required in order to determine required horsepower to rotate a steel hollow cylinde containing approx. 0.75 tons raw compost. the cyl. o/d is 1.8m., length is 2.8m. The cyl. is rotated about a central axis which is a 3inch o/d steel tube supported on 2 plumber block bearings.The cyl. req.s turning slowly 3rpm. once or twice a day.
 
Engineering news on Phys.org
Welcome to PF, Fabricator.
I can't help with any math stuff, but there is something missing from your description. Do you have "baffles" or "paddles" to ensure the mix being properly affected by the rotation? In any even, a definitive response would require some sort of resistance/friction factor.
 
Thread 'How can I find the cleanout for my building drain?'

Thread 'How can I find the cleanout for my building drain?'

I am a long distance truck driver, but I recently completed a plumbing program with Stratford Career Institute. In the chapter of my textbook Repairing DWV Systems, the author says that if there is a clog in the building drain, one can clear out the clog by using a snake augur or maybe some other type of tool into the cleanout for the building drain. The author said that the cleanout for the building drain is usually near the stack. I live in a duplex townhouse. Just out of curiosity, I...
View full post »

Thread 'Query on Isentropic relationships (such as PV^gamma = constant)'

Hi all, I have a question. So from the derivation of the Isentropic process relationship PV^gamma = constant, there is a step dW = PdV, which can only be said for quasi-equilibrium (or reversible) processes. As such I believe PV^gamma = constant (and the family of equations) should not be applicable to just adiabatic processes? Ie, it should be applicable only for adiabatic + reversible = isentropic processes? However, I've seen couple of online notes/books, and...
View full post »

Similar threads

Calculate motor torque requide to drive a cart
Replies
12
Views
8K
Stepper torque calculation to drive a solid cylinder
Replies
4
Views
2K
Rotation of a roll by a driving wheel
Replies
24
Views
3K
Can you help me calculate the required torque and power of this motor?
Replies
8
Views
3K
How to Choose the Right Materials for a Cost-Effective Compost Tumbler Design?
Replies
3
Views
2K
Torque required to rotate a hollow cylinder
Replies
10
Views
13K
How to calculate motor torque and power
Replies
5
Views
8K
Help calculating power required to drive shaft
Replies
4
Views
7K
Power Required for Rotating Vessel
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top