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Thanks, but I already went there. I use that site alot.

No, not a student. I am mechanical designer, but have been tasked with this problem and it has been quite a while since my Thermo and Heat Transfer days. I am just looking for some advice/assistance on how to get this started.

Duct is a 8” x 8” steel square tube with 0.3125” wall thickness, 200” long. Duct weight 742 lbs. One end is capped off and the other end is capped off except it has a 4" OD inlet opening. An external heat source will be used to pump heated air through 4" OD opening in the tube. The duct is...

I need some help - I am working on a new design. I will tell you that I am not an engineer, but just a mechanical designer so please understand the basics of my questions. I am designing a carriage that is rack and pinion drive. The carriage is being driven by 2 planteries with 2 Eaton...

Thanks for everyone's replies - I appreciate it very much. Before my initial post I had derived the same results as ivymike, but when my numbers did not match my starting numbers I made the assumtion that I was making an error somewhere in my calculations. Just to give everyone a little...

I need some help - I am working the CG work for a new machine. I know the estimated weight of the unit and now I am trying to determine based on the CG location weights on each wheel. I have done the reverse in the past by using weights from each wheel and calculating the CG location, but...

I need help – I am working on a hydraulic swing drive with ring and pinion. I am trying to determine what the final speed of the rotation will be. The ring specs are: 12.5” pitch diameter 50 tooth The pinion specs are: 3.5” pitch diamter 14 tooth I am using a small Eaton gear motor to...