A Khash-written technical procurement article When a power plant, LNG facility, refinery, petrochemical complex, pipeline compressor station, or offshore asset decides to outsource turbomachinery oil filtration, the tender must not be written as a request for “filtering services.” That wording is too weak. It invites a low-cost bidder with a filter cart, a few hoses,Continue reading "How a Large Power Plant or Oil & Gas Company Should Tender Outsourced Turbomachinery Oil Filtration Services"

How to Specify a Turbine Oil Varnish Removal Filtration Unit in a Tender A Khash-written technical article A turbine oil varnish removal unit must never be specified as a simple filtration skid. That is the first procurement mistake. Varnish is not only a particle problem; it is an oil-chemistry saturation problem. The tender must thereforeContinue reading "How to Specify a Turbine Oil Varnish Removal Filtration Unit in a Tender"

Turbine Oil Analysis Crossword Puzzle When I was a kid , My Grand Pa Use to Solve the newspapers crossword puzzles. After 35 years from those days, Khash made a crossword puzzle on Turbine Oil Analysis 😉 Email me your answers to ==> khash@turbineoilreliability.com to send you the corrected puzzle answers #Knowledge#Lubrication#Turbomachinery

Effect of Varnish Layers on Rolling Bearings and Service Life Abstract In a rolling bearing, service life depends on maintaining a stable elastohydrodynamic or mixed-lubrication film between rolling elements and raceways while controlling contamination, heat, cage sliding, and lubricant degradation. A varnish layer is harmful because it is not a load-rated bearing material, not aContinue reading "Effect of Varnish Layers on Rolling Bearings and Service Life"

I have been working for some time to offer this online course for Noria and faced challenges that I would explain in this article. https://turbineoilreliability.com/2026/05/13/%f0%9f%9a%80-machinery-lubrication-level-i-online-training-course/ Why Noria Lubrication Training Delivered by Khash Is Different from Typical ICML Exam Preparation In the lubrication training market, many providers now offer ICML exam preparation. Some are priced attractively,Continue reading "Why Noria Lubrication Training Delivered by Khash Is Different from Typical ICML Exam Preparation"

Lubrication-Related Inspections in Turbomachinery 1. Introduction Lubrication is one of the most critical support systems in turbomachinery. In turbines, compressors, expanders, pumps, gearboxes, and high-speed auxiliary drives, the lubricant is not only reducing friction. It is also removing heat, carrying away wear debris, protecting surfaces from corrosion, supporting hydrodynamic oil films, supplying control-oil circuits, and,Continue reading "Lubrication-Related Inspections in Turbomachinery"

Khash TNA (Training Need Analysis) How strong is your team’s lubrication knowledge? I am inviting maintenance, reliability, lubrication, and condition monitoring teams to participate in the Khash TNA – Training Need Analysis, a structured knowledge assessment designed around lubrication fundamentals and MLA-level competency areas. The assessment includes 100 multiple-choice questions covering lubrication knowledge across: MLA I • MLAContinue reading "Khash TNA (Training Need Analysis)"

100 Questions to Ask: How Khash Understands Whether a Lubrication Specialist Has Practical Experience A lubrication specialist can sound very knowledgeable in an interview. Many candidates can define viscosity, additives, ISO cleanliness, grease consistency, or oil analysis. The real challenge is different: has the person actually worked with machines, lubricants, samples, contamination, grease guns, failed bearings,Continue reading "100 Questions to Ask: How Khash Understands Whether a Lubrication Specialist Has Practical Experience"

Why Add OMX When You Are Already MLE, CLS, MLA III, MLT II, VIM, and VPR Certified? Because Oil Analysis Without Expert Interpretation Is Just Expensive Color Printing A friend recently looked at Khashayar Hajiahmad’s certification list and asked a very reasonable question: “Khash, why are you trying to add OMX to your certifications? YouContinue reading "Why Add OMX When You Are Already MLE, CLS, MLA III, MLT II, VIM, and VPR Certified?"

LNG Plant Turbomachinery: Turbine Oil in Refrigeration Compressor Trains Highly technical reliability article for LNG liquefaction, refrigeration compressors, turbine drivers, oil analysis, filtration, and varnish control LNG plants are among the most demanding turbomachinery environments in the oil and gas industry. The liquefaction section depends on very large refrigeration compressor trains, high-power turbine or motorContinue reading "LNG Plant Turbomachinery: Turbine Oil in Refrigeration Compressor Trains"