Mechanical Engineering

mehlam hamid

Members

3

• Rank
Member
1. Determine Motor power

Right .... friction, heat and viscosity!! think i'll find my answer.. thankyou
2. Determine Motor power

Thankyou DrD for replying, well let me describe you the procedure : i)The process department defines the tip velocity & OD of the rotor required to process a substance. ii)So, Well get the required RPM of the rotor (v=rω) ,and we need the rotor to run steadily at this rpm iii)Rotor Design is Confirmed, and say I find a rough MMOI ....................................................................................................................... Now, How do I find the Power Required to run the rotor steadily at say 1400 RPM?? And I do know that a high initial torque is required to get the rotor from 0 to 1400 RPM, How to find this initial Torque?? I did try using T=I(moment of inertia) x α(angular acceleration) I know the MMOI , and α = dω / t where dω will be 2*pi*(1400-0)/60 Now here's the problem HOW ON EARTH WILL I BE ABLE TO GET THE TIME 't' ??!
3. Determine Motor power

I need to select a vertical motor which drives a vertical Rotor weighing approximately 1000 kgs & 6 m in length. I know the basic power equation P(power)=T(torque) x ω(Angular velocity) But how to find the torque?? - Given- RPM(revs. per min) & M(mass) Also, I do know that T=I(moment of inertia) x α(angular acceleration) But, again how to know Inertia and Acceleration before even manufacturing the rotor??!! the rotor looks somthing like this: https://www.process-worldwide.com/gig-karasek-gmbh/photos-videos/company/235606/500966/#1 PS - Im an intern at a company that manufactures ATFEs(agitated thin fill evaporator), reactors ,ATFDs(agitated thin film dryer)....etc for chemical processes
×
×
• Create New...