Authors

Kirk Lupkes
Latest Article

Product Spotlight: Siemens Energy: Turbomachinery-Based Technologies for Decarbonization

Siemens Energy is developing three technologies—an advanced rotor hydrogen compressor, a Turbo Heater, and a rotating olefins cracker—to drive the energy transition and reduce carbon emissions.

Mohammadreza Galeban
Latest Article

Beyond the First Critical Speed: Do All Rotors Need High-Speed Balancing?

High-speed balancing for rotors operating above their first critical speed isn’t always necessary; it depends on a detailed analysis of the rotor’s dynamic behavior and modal response at operational speeds, not a blanket rule.

HRST, Inc.
Latest Article

Detecting Valve Weld Cracking Early (Dec 2025)

Learn how advanced NDE methods revealed internal cracking in HP bypass valves and enabled a fast, effective weld repair before failure occurred.

Abed Khateri
Latest Article

Varnish’s Effect on Gas Turbine Vibration: A Case Study

Managers from a gas-treating company investigated the effects of varnish on the vibration of bearing No.2 of a Siemens SGT 600 gas turbine.

John Crane
Latest Article

Engineering A Better Future

John Crane’s services protect what matters. People, plant, and performance.

Nejib Chekir
Latest Article

Automated Gas Turbine Blade Repairs—“It’s Not AI”

Leveraging visioning systems and rule-based knowledge, while not AI, provides repeatable and reliable repairs for the aerospace and industrial gas turbine industries.

Steve Hiner
Latest Article

CapEx: New Gas Turbine Models and Filtration Footprints

When deciding to refurbish or renew, gas turbine plant owners have to weigh engineering and economic factors, including the turbine’s footprint.

EnergyLink
Latest Article

Capitalizing on Change With Innovative Exhaust Emissions and Acoustics for the Power Industry

EnergyLink leads in emissions control, innovation, and acoustic solutions for the growing energy sector.

Nikhil Rao

Senior Aerodynamics Engineer, Ebara Elliott Energy

Latest Article

Steam Turbine Optimization for Mechanical Drive Applications – Part 2

Mechanical design decisions—ranging from stress management to natural frequency tuning—play a critical role in the reliability of steam turbines across demanding mechanical drive applications.

Pavini Shah
Latest Article

Shaping the Future: Centrifugal Compressors

Centrifugal compressor manufacturers are incorporating magnetic bearings, variable-speed drivers, digital twins, and more to improve performance and reliability.

Mechademy
Latest Article

Physics-Informed and Physics-Guided Machine Learning for Rotating Equipment

Combining physics with machine learning leads to more reliable, accurate predictions in industrial rotating equipment fault detection and analytics.

Honeywell
Latest Article

THE AGE OF AI: Turbomachinery Asset Performance Management Best Practices

Turbomachinery assets are often critical and complex to monitor, but costly to operations if unplanned shutdowns or prolonged performance issues occur. Leading industrial companies are broadening and digitalizing their approach to leverage data and AI/ML effectively to advance the real-time monitoring of these assets. This article reviews tools and techniques that the best-in-class leaders are deploying to reduce unplanned downtime, reduce maintenance costs, and improve sustainability of assets.

Paul Smith

Senior Engineer, R&D, Ebara Elliott Energy

Latest Article

Steam Turbine Optimization for Mechanical Drive Applications – Part 2

Mechanical design decisions—ranging from stress management to natural frequency tuning—play a critical role in the reliability of steam turbines across demanding mechanical drive applications.

Andrew Laing
Latest Article

Automated Gas Turbine Blade Repairs—“It’s Not AI”

Leveraging visioning systems and rule-based knowledge, while not AI, provides repeatable and reliable repairs for the aerospace and industrial gas turbine industries.

Hasan Mokhtaripour
Latest Article

Varnish’s Effect on Gas Turbine Vibration: A Case Study

Managers from a gas-treating company investigated the effects of varnish on the vibration of bearing No.2 of a Siemens SGT 600 gas turbine.

Peter Kutne
Latest Article

Transitioning to Hydrogen-Powered Thermal Power Plants: Opportunities and Challenges

The future of hydrogen in power generation depends on the successful integration of technology, infrastructure, and regulatory measures.

Steven Baird
Latest Article

Digitally Transforming Compressor Inspection and Repair

Combining 3D laser scanning and generative AI automates inspection processes, enhances service quality, and expedites equipment overhauls.

Jeff Wirt
Latest Article

Innovation in Catalyst Technology: Using Direct Injection of Liquid Ammonia Provides Many Benefits

Jeff Wirt, Director of Catalyst Systems at EnergyLink International sat with Turbomachinery to discuss a new direct injection system for liquid ammonia that streamlines Selective Catalytic Reduction (SCR) in gas turbines. By eliminating the need for vaporization skids, blowers, and extensive piping, the technology reduces costs, improves NOx reduction efficiency, and lowers parasitic power consumption. Full-scale field tests confirm the system not only meets regulatory limits but also outperforms traditional SCR methods while offering faster deployment for a range of turbine models.

Michael Branagan Ph.D., PE
Latest Article

Best Practices in Fluid-Film Bearing Operation and Maintenance

Fluid-film bearings are essential to turbomachinery performance, but their reliability depends on careful attention to design, lubrication, and monitoring practices. Day Griffin, MSME, PE, and Michael Branagan Ph.D., PE from Pioneer Motor Bearing Company spoke with Turbomachinery International about how operators must balance precision and maintenance discipline to maximize bearing life and prevent costly failures.

Braden
Latest Article

Revitalizing Energy Infrastructure: Extending the Life of Gas Turbines

With the energy transition accelerating and much of the existing infrastructure reaching the end of its operational life, modernization has become essential for the gas transmission sector to maintain safety, capacity, and environmental performance. One standout example is the recent Cab Infrastructure Project undertaken by Braden, a global leader in gas turbine auxiliary equipment for Gas Turbine Systems. Tasked with revitalizing a Gas Turbine compressor unit at a critical site in the South of England, Braden delivered a solution that not only extended the unit’s operational life but also prepared it for a cleaner energy future.

Alicia Bigica
Latest Article

Addressing the Energy Trilemma: Key Takeaways from Nico Schmaeling’s TPS 2025 Keynote

Facing rising demand, decarbonization targets, and supply chain volatility, John Crane’s Nico Schmaeling urged turbomachinery professionals at the 2025 Turbomachinery & Pump Symposium to address the energy trilemma—security, affordability, and sustainability—through smarter design, efficiency upgrades, and cross-industry collaboration.

Federico Bassi
Latest Article

Exergy International: Turbo Expanders for Modular ORC Power Plants

Exergy International developed a high-speed axial turbine for waste heat recovery in organic Rankine cycle power plants.

Day Griffin, MSME, PE
Latest Article

Best Practices in Fluid-Film Bearing Operation and Maintenance

Fluid-film bearings are essential to turbomachinery performance, but their reliability depends on careful attention to design, lubrication, and monitoring practices. Day Griffin, MSME, PE, and Michael Branagan Ph.D., PE from Pioneer Motor Bearing Company spoke with Turbomachinery International about how operators must balance precision and maintenance discipline to maximize bearing life and prevent costly failures.

Moslem Kamaie Monfared
Latest Article

Varnish’s Effect on Gas Turbine Vibration: A Case Study

Managers from a gas-treating company investigated the effects of varnish on the vibration of bearing No.2 of a Siemens SGT 600 gas turbine.

Adam Neil

Director of Global Technical Services, Ebara Elliott Energy

Latest Article

Steam Turbine Optimization for Mechanical Drive Applications – Part 2

Mechanical design decisions—ranging from stress management to natural frequency tuning—play a critical role in the reliability of steam turbines across demanding mechanical drive applications.