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Horizontal v. Vertical Boilers
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Author:  Joshua K. Blay [ Wed Apr 07, 2010 4:12 pm ]
Post subject:  Horizontal v. Vertical Boilers

I'm working on an exhibit, and also have general curiosity regardless, what are the advantages/disadvantages of horizontal and vertical boilers for permanent static (as in factor) v. locomotive use?

Obviously, height and capacity would be a limiting factor for a vertical boiler used with a locomotive.

Joshua

Author:  Stan Ottaway [ Wed Apr 07, 2010 6:21 pm ]
Post subject:  Re: Horizontal v. Vertical Boilers

One of the collateral advantages of a vertical fire tube (VFT) boiler is the steam above the disengagement (top of the water) line is superheated a little producing a dryer steam with a little more energy. A VFT is probably one of the most inexpensive configurations to build making them very popular for small to medium industrial applications where height was not a concern. The vertical boiler configuration is still used today in fire tube and water tube designs for generating steam and hot water.

Author:  060 Hogger [ Fri Apr 09, 2010 4:59 am ]
Post subject:  Re: Horizontal v. Vertical Boilers

When the boiler is under steam, the steam actually cools the upper dry portion of the tubes. This effect is not in-play when there is no steam present, i.e. firing up from cold.
Therefore, a boiler of this type should not be pushed excessively when firing-up.

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