International Journal of Applied Engineering Research ISSN 0973-4562 Volume 13, Number 6 (2018) pp. 386-395 © Research India Publications. http://www.ripublication.com 386 Studies and Analysis of Effect of Foreign Particles on the Parts of Steam Turbine Karunesh Kumar Yadav Research Scholar, Department of Mechanical Engineering Research, Dr. K. N. Modi Institute of Engineering and Technology Kapda Mill, opposite SBI Main Branch, Modinagar, Uttar Pradesh. India. Raju Giri  Assistant Professor, Department of Mechanical Engineering Research, Dr. K. N. Modi Institute of Engineering and Technology Kapda Mill, opposite SBI Main Branch, Modinagar, Uttar Pradesh. India. Dharmendra singh a , Piyush Priyadarshi a , Monu Kumar a , Vijay Kumar a , P. K. Sharma b , I. D. Sharma b . a Dr. K. N. Modi Institute of Engineering and Technology, Modinagar, Kapda Mill, opposite SBI Main Branch, Uttar Pradesh India. b Supreme Turbo Tech., Shastri Nagar Modinagar, India  Corresponding author. Tel.: +91 9639242066,7888307760 E-mail address: raju.k.giri@knmiet.edu (R. K. GIRI),. karuneshyadav17@gmail.com (Karunesh Kumar yadav) Address: Dr. KNMIET MODINAGAR, INDIA 201 204, India Abstract This paper is reported on the investigation of industrial turbine’s fault, its detection method & take the challenging and strategic task to diagnosis the fault. This paper describes the study conducted on steam turbine parts like rotor, bearing, thrust pad, gear pump turbine gear (reduction gear), throttle valve, emergency stop valve, and analysis of failure mode during the operation. The faults that come during operation are breaking of blade, failure of gear pump, damage of bearing’s Babbitt material, thrust pad, chocking of steam inlet valve, clogging of pores of oil filter and strainer due to dust particles. Vibration may arise due to bearing defect, rotor unbalance which is corrected by balance the rotor by removing the weight of unbalance portion of turbine by grinding of rotor disc. Other cause of vibration is improper impact of steam on blade, bearing crack, less lubrication of bearing. White metal deposited on bearing then we match the face of bearing with rotor and precisely measure the clearance of the bearing. Turbine surface degradation is due to the deposits, corrosion, solid particle erosion, mechanical damage etc. Turbine surface roughness up to 0.05mm, decreases the efficiency by 4% and increases the steam consumption. Operating the turbine is considerably different from parameter given in turbine manufacturer manual. Other reasons of fault are use of poor quality water in boiler for producing steam and improper assembly of parts after maintenance. Major causes of failure are fatigue, stress corrosion, cracking and corrosion fatigue. So many faults are introduced after the continued operation of the turbine by unskilled operator. The remedies of many faults are replacing the parts like defected blades, oil filter, labyrinth gland seal by using the new spare parts of turbine which are strongly recommended to keep in store. Some defect can be removed by polishing surface, open clogged holes, clean drains etc. For repairing the defected parts, we use foundry shop, rotor balancing machine, brasso, and blue paste, emery paper, compressed air, lubrication, diesel, sponge, siling rope, mobile cranes, chain blocks for lifting heavy parts, Filler gauge, Dial gauge, Welding Machine etc. Key word: babbitt metal, corrosion, clearance. Introduction Today in competitive generation the requirement of the electricity increases. To meet this requirement many power plants are working in our world. These are so many different types on the basis of capacity operation, application and desired performance. In 1882 the first commercial central electric generation station in New York, London also used reciprocating steam engine. As generation size increased, eventually turbine came into use because of its high efficiency & lower construction cost. After 1920’s maximum power generation station was larger than few kilowatts and were using a turbine prime mover. The modern manifestation was invented by Sir Charles parson in 1884. In 1996 the 90% generation of electricity in United States was use of steam turbine. In our India about 68% of total electricity generation is from thermal power plant the steam turbine is necessary to extract thermal energy from pressurized steam and convert it into rotating shaft which is coupled with generator to generate electricity. [3] Now day’s steam turbines are most important machine for electricity production worldwide due to their higher efficiency and low cost. There is a great impact of steam turbine on power plant economy. Today’s demand for electricity is fulfilling with less cost is very important.