Erosion and flow visualization in centrifugal slurry pumps: a comprehensive review of recent developments and future outlook

• Published in: Particulate science and technology Vol. 42; no. 3; pp. 427 - 459
• Main Authors: Banka, Jagadeesh, Rai, Anant Kumar
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 02-04-2024; Taylor & Francis Ltd
• Subjects: Centrifugal pumps; Centrifugal slurry pump; efficiency; erosion; Flow visualization; Maintenance; particle; Particle interactions; Performance enhancement; PIV; sediment; Slurries; Visualization
• ISSN: 0272-6351; 1548-0046
• DOI: 10.1080/02726351.2023.2259336

Primary goal of this article is to present recent developments in erosion research and associated particles in centrifugal slurry pumps. Solid particles in transported liquid cause severe erosion of components in centrifugal pumps causing poor performance and reduced lifespan. Erosion necessitates frequent repairs and maintenance replacements, resulting in significant financial losses. This article summarizes the effect of slurry erosion on the performance characteristics of centrifugal pumps handling different fluid and solid mixtures, as well as methods to reduce erosion. According to the majority of the literature, particle properties, pump geometry, and operating parameters have a paramount influence on pump characteristics. Recently, researchers attempted to improve the performance characteristics of centrifugal pumps by employing various flow visualization techniques, which also aid in understanding the solid particle interaction with various pump components. Therefore, recent advancements in flow visualization technology inside the centrifugal pump are also included. Further, specific studies on erosion in centrifugal slurry pumps from different industries are also provided. This study is beneficial to designers, process managers and researchers involved with slurry centrifugal pumps.