Experimental study on impact/fretting wear in heat exchanger tubes

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6716975

Cha, J H; Wambsganss, M W; Jendrzejczyk, J A

The objective of this study is to provide qualitative impact/fretting wear information for heat exchanger tubes through the performance of a series of tests involving the pertinent parameters: force between the tube and its support; tube to support plate hole clearance; tube support plate thickness; preload; and tube vibration frequency. The characteristics of impact/fretting wear relative to material combinations and fluid environment were also investigated. The test apparatus consists of a cantilevered tube with a simulated tube support plate at the ''free end''. Tube vibration is induced by an electromagnetic exciter to simulate the flow-induced tube motion occurring in a real heat exchanger at the tube/tube support plate interface. Tests are conducted in air, water, and oil, all at room temperature. Removable wear rings are attached to the tube free end and simulated support fixture. Wear ring materials include carbon steel, 304 stainless steel, Inconel 600 and brass. Wear is measured by a weight loss technique and wear rates are calculated and reported as functions of the various pertinent parameters. Based on the test results, general conclusions are drawn.

• Research Organization: Korea Advanced Energy Research Institute, Taejon
• OSTI ID: 6716975
• Report Number(s): CONF-860722-
• Resource Relation: Conference: ASME pressure vessel and piping conference and exhibit, Chicago, IL, USA, 20 Jul 1986
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
HEAT EXCHANGERS
FRETTING CORROSION
TUBES
WEAR
AIR FLOW
DYNAMIC LOADS
HEAT TRANSFER
INTERFACES
LIQUID FLOW
LOSSES
MEASURING METHODS
MECHANICAL VIBRATIONS
MOTION
PETROLEUM
PLATES
SIMULATION
SUPPORTS
WATER
WEIGHT MEASUREMENT
CHEMICAL REACTIONS
CORROSION
ENERGY SOURCES
ENERGY TRANSFER
FLUID FLOW
FOSSIL FUELS
FUELS
GAS FLOW
HYDROGEN COMPOUNDS
MECHANICAL STRUCTURES
OXYGEN COMPOUNDS
360105* - Metals & Alloys- Corrosion & Erosion
360103 - Metals & Alloys- Mechanical Properties
421000 - Engineering- Combustion Systems