Every successful installation starts with a good foundation
July 16 2013 -
Every installation needs an adequate foundation. For pumps, there are three basic classes of equipment that require different styles of foundations. An excellent source for further information is Process Industry Practices (PIP) document REIE686 which is a joint document with API which titles it RP686. PIP has a supplemental document REIE686A that has additional information.
Fouling and corrosion in petrochemical compressors and steam turbines are the two long-standing problems for the turbomachinery industry. Fouling refers to solid particles, usually polymers, which adhere (stick) to the internal aerodynamic surfaces of the compressors. This usually does not cause catastrophic failure but can lead to reduced efficiencies and in some case lead to blockage of the gas passages causing premature shut down of the machine.
July 13 2014 -
Carlos Koeneke, Mitsubishi Hitachi Power Systems Americas
Over the last few decades, gas turbine (GT) technology has evolved in pursuit of greater efficiency and increased flexibility. Such objectives impose higher operating temperatures, larger pressure ratios and faster ramp rates. Tougher operating conditions impose increased stresses on components, adversely affecting their durability. In addition, longer operating intervals between scheduled inspections raise the risk of component deterioration and failure as well as potential secondary damage.
Stainless steel components ensure optimum machinery life
June 18 2014 -
William E. Forsthoffer
A stainless steel reservoir, vessels and piping should be used to ensure minimum oil flushing time, optimum machinery component life and machinery reliability. Oil Flushing time can significantly extend commissioning and turnaround time, if any oil system components or piping are subject to corrosion.
Optimum train reliability depends on critical oil system data
June 14 2014 -
William E. Forsthoffer
Any unscheduled shutdown for critical (un-spared) equipment can result in revenue loss of millions of USD, and 80 percent of the root causes of machinery failure lie in the process system and/or the machinery supporting systems.
An isothermal compressor is an old dream of the engineer, based on the value of lower specific power consumption (per unit mass) compared with regular (adiabatic) compressors. This technology could improve the efficiency of gas turbines and related plants. And it can save power in many compression jobs in process plants, especially in cases of high pressure ratio.
The misalignment of turbomachine train rotors is the second most common malfunction of turbomachineries (the first most common malfunction is unbalance). Turbomachine alignment procedures have been involving quite sophisticated laser-optic instrumentations.
Technical notes on gas turbine starting device, starting, reference check, component life, inspection, sizing and speed range selection are discussed. The main concerns are gas turbine arrangement and operation solution to obtain optimum fuel consumption, low emission and reasonable reliability.