Browsing Tag featured newsletter

• 

  Gas Turbines

  How turbine inlet cooling can sync with changing load profiles of gas turbines

  Gas turbine (GT) systems are well known worldwide for being a very efficient option for generating electric power on large scales. Modern GTs operating in combined-cycle mode achieve ...

  On September 14, 2019 / By Don Punwani
• Auxiliaries

  Selecting seal materials

  There are five elements to each mechanical seal that must be evaluated for each application. The first element is referred to as the Primary Sealing Element. This is ...

  On September 12, 2019 / By TMI Staff & Contributors
• 

  Pumps

  What are magnetic drive centrifugal pumps

  A magnetic-drive, sealless, centrifugal pump offers complete containment of process liquid, utilizing product lubricated bearings within a pressure boundary and a magnetic coupling to transmit torque across a ...

  On September 7, 2019 / By TMI Staff & Contributors
• Auxiliaries

  Particulate contamination in rolling element bearings and their prevention

  While bearings are made of hardened steel, th’ey are surprisingly susceptible to contamination. The reason is the very high contact pressures that are present in the small contact ...

  On August 31, 2019 / By Kalyan
• Auxiliaries

  Materials that link the rotating equipment with the foundation

  The rotating equipment and heavy machinery cannot simply be placed on the concrete foundation since the irregularities in both the machine base and concrete surface will create point ...

  On August 28, 2019 / By TMI Staff & Contributors
• Compressors

  When centrifugal and reciprocating compressors are operated together

  While operation and maintenance of centrifugal compressors in series, parallel or a combination of arrangements has been extensively studied, centrifugal and reciprocating compressors are now being operated together ...

  On August 24, 2019 / By TMI Staff & Contributors
• Auxiliaries

  How stray currents can harm rotating machinery

  Stray currents manifest in rotating machinery as a result of specific abnormalities in machines related to flux imbalance, residual magnetism, electrostatic build-up and induced voltages. Discharges of these ...

  On August 22, 2019 / By TMI Staff & Contributors
• 

  Gas Turbines

  In what all ways ambient temperature affects performance of gas turbines

  Changes in ambient temperature have an impact on full-load power and heat rate, but also on part-load performance and optimum power turbine speed. Manufacturers typically provide performance maps ...

  On August 17, 2019 / By Klaus Brun & Rainer Kurz
• 

  Auxiliaries

  What are thrust bearings, tilting pads?

  Thrust bearings are usually classified as fixed geometry or tilting pad. Figure 1 shows a simple flat land fixed geometry bearing. The surfaces of the pads and the ...

  On August 15, 2019 / By TMI Staff & Contributors
• 

  Auxiliaries

  When rotary pumps can replace centrifugals

  Within the U.S., and probably worldwide, piping systems, pipelines and the pump trains that provide the flow within these systems have seen fluids with ever increasing specific gravity ...

  On August 11, 2019 / By TMI Staff & Contributors