logging in or signing up OIL DEBRIS WEAR ANALYSIS IN THERMAL POWER PLANT shivajichoudhury Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 950 Category: Science & Tech.. License: All Rights Reserved Like it (1) Dislike it (0) Added: December 29, 2010 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: nugroho1 (33 month(s) ago) I REALLY WANT IT Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript OIL DEBRIS WEAR ANALYSIS IN THERMAL POWER PLANT : OIL DEBRIS WEAR ANALYSIS IN THERMAL POWER PLANT SHIVAJI CHOUDHURYOBJECTIVE: OBJECTIVE Minimize component wear. Extend equipment life. Ensure lubricant suitability for continued use. Monitor viscosity levels for optimum performance. Reduce unscheduled downtime. Increase reliability. Boost company profit.LUBRICANT OIL ANALYSIS: LUBRICANT OIL ANALYSIS Moisture. Mechanical Impurities. Density. Viscosity. Acidity. ASTM D 4378-97 is Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam and Gas Turbines.LUB OIL DIAGNOSIS: LUB OIL DIAGNOSIS Degradation of lubricant oil. Impurities in lubricant oil. Wear debris in lubricant oil.Wear Debris Analysis: Wear Debris Analysis The continuous trending of wear rate monitors the performance of machine /machine components and provide early warning and diagnosis. Oil condition monitoring can sense danger earlier than vibration technique.Oil Cleanliness Coding ISO 4406 (1999): Oil Cleanliness Coding ISO 4406 (1999)CATEGORIES OF WEAR PARTICLES TYPES: CATEGORIES OF WEAR PARTICLES TYPES Normal rubbing wear Cutting wear Bearing wear Severe sliding wear Nonferrous wear particles Corrosives wear Spheres Black oxides contaminantsNORMAL RUBBING WEAR: NORMAL RUBBING WEAR Typically ferrous string particles Size less than 10 microns Aligned along to magnetic field The greater the size ,greater the severityCUTTING WEAR: CUTTING WEAR 2 body wear (metal/metal) softer metal is cut. 3 body wear (metal/contaminant/metal) harder metal is cut curls of metal like lathe swarf 5 μm to 5000 μm in size (10-85 μm usual) bad machining, contaminants, misalignmentBEARING WEAR: BEARING WEAR Laminar bearing wear particles are flat Caused by high load Usually more than 20 micronsNONFERROUS WEAR PARTICLES: NONFERROUS WEAR PARTICLES Copper alloys are yellow Aluminum alloys are white Lead/tin Babbitt is purple when heatedOXIDES: OXIDES Red oxides -Orange/red particles indicating water in oil. Black oxides-black particles aligned in ferrous strings caused by high temperatures at contact pointsCONTAMINANTS: CONTAMINANTS Sand /dust particles Fibers which are long straight or curly transparent particles cause by filter deteriorationCORROSIVE WEAR: CORROSIVE WEAR Small particles less than 1 micron Caused by acidic attack on internal surfacesSPHERES: SPHERES Friction melting of other wear particles Small ball-bearing like spheres 5 μm to 30 μm in size (5 - 15 μm usual) Only during periods of extreme frictionSevere Sliding : Severe SlidingFatigue : FatigueLUBRICANT OIL in THERMAL POWER PLANT: LUBRICANT OIL in THERMAL POWER PLANT TURBINE BEARING LUB OIL BOILER FEED PUMP TURBINE LUB OIL Mill gear box. FAN BEARING LUB OIL PUMP LUB OILOIL ANALYSIS REPORT: MILL GEAR BOX-(wear elements in ppm): OIL ANALYSIS REPORT: MILL GEAR BOX-( wear elements in ppm) fe -1334 Cr-11 Ni-28 Cu-1755 Sn-178 Zn-37 Al-44 Si-140 Mn-19 misalignment gear assemblyTypical gear tooth contact patterns: Typical gear tooth contact patterns aligned misalignedWEAR DEBRIS ANALYSIS & DIAGNOSIS: WEAR DEBRIS ANALYSIS & DIAGNOSIS This monitors equipment condition and can identify types and possible sources of wear and contamination. It includes a Particle Count or Ferrography A Particle Count identify all particles present measuring 4 to 100 microns in size.Wear Debris Analysis Technique: Wear Debris Analysis TechniqueTHANKING YOU: THANKING YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.