International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 02 | Feb 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1133 Parameters Affecting Erosion Wear in Pneumatic Conveying System- An Overview Abhishek Srivastava 1 , Amit Suhane 2 1 M-Tech Scholar, Department of Mechanical Engineering, MANIT Bhopal, 462003, India. 2 Assistant Professor, Department of Mechanical Engineering, MANIT Bhopal, 462003, India. ----------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The erosion of a surface by solid abrasive particles in a fluid stream is perhaps the dominant factor which makes industry reluctant to install pneumatic conveying systems for handling abrasive materials However, the demands for environmental protection are likely to require that many more abrasive solids will ultimately be transported pneumatically[1]. Erosive wear reduces the life of mechanical equipment and therefore a critical issue for design, selection and operation of pneumatic transportation system. Engineering interest is to estimate the service life of equipment subjected to pneumatic erosion and to investigate the possibilities of enhancement of their life. Present overview is to explore the effect of tribological parameters on erosion wear mainly target material, erodent material, impact angle ,impact velocity, particle size and solid concentration .Finally some inference can be drawn from an overview and concludes future research scope that will be helpful to a new researcher in field of erosion wear. Key Words: pneumatic transportation system, impact angle, impact velocity, solid particle erosion. 1. INTRODUCTION Wear is the damaging, gradual removal or deformation of material at solid surfaces. It is purely a mechanical process .It may occur due to corrosion, abrasion or erosion. Corrosive wear is caused due to chemical reactions, abrasive wear caused when hard rough surface slides against softer surface and erosion wear takes place due to impact of solid particle on surface of object. Erosion wear classified into three categories solid particle erosion, liquid erosion and cavitation erosion. The solid particle erosion is again classified into two categories gas solid and slurry erosion .In gas solid erosion the solid particle is suspended with gas and in slurry erosion solid particle is suspended within liquid. Fig-1: Classification of erosive wear Gas solid erosion is a severe problem in pneumatic conveying system, particularly when abrasive materials have to be handled .It poses great challenge in maintenance and operation of pneumatic conveying system because of high velocities required for conveying bulk particulate materials. Erosion due to bulk particulate material reduces service life of equipment/components. Pneumatic conveying system is particularly suitable for handling toxic and hazardous materials and is extensively used in chemical process industry, pharmaceutical industry, mining industry, agricultural industry, mineral industry, and food processing industry. Virtually, all powders and granular material can be transported using this method [1]. Wear taking place due to erosion is a complex phenomenon it can be minimized by controlling its affecting parameters such as impact angle, solid concentration, impact velocity and particle size .The objective of current research paper is to