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- Users: doctorsundar
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How much force to wrap spring around pipe?
I am trying to compute the surface stress on a steel tube when a spring (made of steel wire) is wrapped around the outside of this tube. The steel wire wraps itself around this tube as the tube spins at about 50 rpm. I suppose that I first need to compute the tension in the steel wire. When...- doctorsundar
- Thread
- Replies: 6
- Forum: Mechanical engineering general discussion
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Shell and tube heat exchanger maximum temperature and pressure
Would it be possible to heat CO2 which is at 20 - 40 psia pressure to a final temperature of 400 deg C, in a heat exchanger of the shell and tube type? I suppose that the heating medium (hot air, for example) should have an entry temperature of 500 deg C. I seem to recall reading somewhere...- doctorsundar
- Thread
- Replies: 4
- Forum: Boiler and Pressure Vessel engineering
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aqueous amonia properties
I have a computer program which has the properties of ammonia-water mixtures. Write to me at doctorsundar@hotmail.com. I will send it to you for free. Sundar Narayan, Ph.D- doctorsundar
- Post #3
- Forum: Heat Transfer & Thermodynamics engineering
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Head loss at Entrance
You had better use a flared inlet if you are concerned about pressure loss. For air ducts, conical intake has 0.25VP entry loss, plain pipe has 1.0VP entry loss. VP = velocity pressure. Sorry I don't have data on water pipes. Sundar Narayan- doctorsundar
- Post #2
- Forum: Pipelines, Piping and Fluid Mechanics engineering
