Numerical analysis of heat convection through a double-pipe heat exchanger: Dimpled influence

Ali, Mousa Aqeel; Shehab, Saad Najeeb

doi:10.1016/j.jer.2023.100016

Journal of Engineering Research

2023

DOI: 10.1016/j.jer.2023.100016

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Numerical analysis of heat convection through a double-pipe heat exchanger: Dimpled influence

Mousa Aqeel Ali¹,

Saad Najeeb Shehab²

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Cited by 11 publications

References 19 publications

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Failure investigation of an elbow pipe used in sewage water treatment facility

Garg,

Bansal,

Murtaza

2024

Materials & Corrosion

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In this research work, a real case of failed ASTM A860 WPHY 65 long elbow pipe coated with inorganic zinc ethyl silicate primer is collected from a treatment facility to investigate the root causes of its failure, which was reported after approximately 28 months of use. The failure was investigated using visual observations, metallurgical analysis using optical emission spectroscopy, mechanical testing, X‐ray diffraction of corrosion product, chemical analysis of sewage and corrosion rate test of the elbow using a three‐electrode potential technique, fractographic analysis using scanning electron microscope along with computational analysis to confirm the results. Through the testing, it was observed that severe depletion in the strength can be attributed to erosion–corrosion caused by various impurities present in the sewage, leading to the generation of corrosion pits and turbulent eddies and stresses generated due to sudden changes in fluid flow direction along with gases present in sewage reacting with a base metal. Various failure mechanisms that have led to pipe failure are discussed in this paper, along with a listing of preventive measures to delay it.

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Failure investigation of an elbow pipe used in sewage water treatment facility

Garg,

Bansal,

Murtaza

2024

Materials & Corrosion

View full text Add to dashboard Cite

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Comprehensive evaluation of the entropy generation in oval twisted double-pipe heat exchanger using non-Newtonian nanofluid using two-phase mixture model

Shahsavar

Bakhshizadeh

Ali

2023

Engineering Analysis with Boundary Elements

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Numerical investigation on thermohydraulic characteristics in a circle tube with a novel arrangement of ellipsoidal dimples

Zhang,

Shan,

Wang

et al. 2024

International Journal of Heat and Fluid Flow

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Numerical analysis of heat convection through a double-pipe heat exchanger: Dimpled influence

Cited by 11 publications

References 19 publications

Failure investigation of an elbow pipe used in sewage water treatment facility

Failure investigation of an elbow pipe used in sewage water treatment facility

Comprehensive evaluation of the entropy generation in oval twisted double-pipe heat exchanger using non-Newtonian nanofluid using two-phase mixture model

Numerical investigation on thermohydraulic characteristics in a circle tube with a novel arrangement of ellipsoidal dimples

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