INSPECTION AND PROPOSAL FOR THE
REPAIR METHOD OF A CRACKED EXPANSION JOINT ON HEAT EXCHANGER USING COMPOSITE
M.F. Fekaouni1, Mouna Amara1, A.
Belalia1, Mohamed Hadj Meliani1,2*, Guy Pluvinage2,
R.K. Suleiman3, Ljubica Milović4
Faculty of Technology, Hassiba Benbouali University of Chlef, Chlef, ALGERIA
LaBPS-ENIM, Ecole Nationale d'Ingénieurs de Metz, Metz, FRANCE
Interdisciplinary Research Centre for Advanced Materials, KFUPM, Dhahran 31261,
University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, SERBIA
A heat exchanger is a heat transfer device that exchanges heat between two or
more process fluids. Heat exchangers have widespread industrial and energy
applications. The actual design of heat exchangers is a complicated problem. The
cost of fabrication and installation, weight, and size play important roles in
the selection of the final design from a total cost of the ownership point of
view. In this work we present a modern technique to repair the structural defect
of the steel extension joint. This technique uses a composite sleeve. By using
the database obtained from the service location, we perform a numerical analysis
to estimate the hoop stress distribution which is responsible for failure.
According to the obtained results, the composite sleeve is considered as a
suitable method for repairing the circumferential crack in the steel material.
In fact, the superior fatigue performance of composite material sleeves enables
them to be used to repair metallic materials with fatigue damage. Finally, this
work confirms that the composite sleeve can be considered as a suitable
technique to repair expansion joint cracks under high temperature.
Keywords: inspection, repairing method, crack, heat exchanger,