Study of hydraulic impacts in steam plant

Owen, I. and Amini, A. (1995) Study of hydraulic impacts in steam plant. In: 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition, 13 - 18 August 1995, Hilton Head, South Carolina.

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Item Type:Conference or Workshop contribution (Paper)
Item Status:Live Archive


This paper is concerned with the damage that can occur in steam distribution systems due to high pressures generated by condensate being swept through pipework by high pressure steam. Two cases have been considered. The first situation is one where an isolated slug of water is propelled through a pipeline by high pressure gas and impacts against an obstruction, in this case an orifice plate. In the experimental tests compressed air was used to propel a slug of water through a 13 m long 50 mm diameter pipeline; impact pressures of up to 300 bar were generated. The second case considers the damage that is found to occur in a particular component of a steam system - a steam float trap. Damage was inflicted by slug impact and by pressures generated from water hammer in the main line. Although water slugs are often blamed for steam trap failures, the damage inflicted by this mechanism was inconsistent with that found in practice and it is concluded that they are not responsible. Water hammer in the main line could, however, be the cause of failure.

Additional Information:Conference Code:46147
Keywords:Failure analysis, Flowmeters, High pressure effects, Piping systems, Steam power plants, Water hammer, Condensate, Steam distribution system, Steam float trap, Hydraulics
Subjects:H Engineering > H100 General Engineering
H Engineering > H141 Fluid Mechanics
Divisions:College of Science > School of Engineering
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ID Code:18278
Deposited On:14 Aug 2015 15:12

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