Integrally geared compressors were first introduced for plant and instrument air service in the 1960s. The term “integrally geared compressor” (IGC) refers to a large driving gear (bull gear) which is coupled to a driver.
Kevin Kochirka, Consulting Application Engineer at ABB Inc., made a case for power plant operators to choose vendors who offer an open control system based on his experience working at Pacific Klamath Energy Cogeneration Plant. The plant has two Siemens 501 FD3 CTs (Base Load Combined Cycle), one Alstom Steam Turbine. For peaking generation it has two Pratt Whitney FT8 Twinpacs (Simple Cycle) with an SCR ‐ Anhydrous Ammonia.
Below are excerpts given from a paper presented at Power Gen International, 2014, by Dan Burch, Steve Hiner, Jim Lenox, Tim Nicholas, Sarah Propp, of CLARCOR Industrial Air.
"By analyzing sites globally, it can be demonstrated that other factors play just as much a role in compressor health as the efficiency of the filter does. The size of the inlet house, the metals or plastics used for filter casings, and the media selection has as much to do with turbine performance as the efficiency of the filter.
GE has released the 16.5 MW NovaLT16, designed to provide 37% mechanical efficiency for pipeline compression and 36% efficiency for simple-cycle power generation. Further specs, according to GE, include 80% efficiency for combined heat and power, 99% availability and a guarantee of 25 ppm NOx.
Ask most people about innovation in bearings and they will mention magnetic bearings. Certainly, they deserve the spotlight. It seems that every turbine OEM and major bearing supplier has been eager to augment its arsenal with mag bearings.
Properly design and monitor quench systems for optimum seal reliability and to ensure that moisture does not enter the bearing housing. The proper function of seal quench systems is to remove solid particles from the lower seal face to prevent premature seal wear.
This is where we are on the atmospheric CO2, according to the recent IPCC 5th Assessment Report.
The worldwide CO2 emissions in 2013 were 36.1 Gt. The chart shown below models a full spectrum of scenarios included in the assessment along with a 2014 estimate. Currently, we appear to be tracking on the RCP8.5 trajectory.
In the second part of this series, the author wrote about ABB’s reheat combustor and proposed a new design for GE machines. In this article, he hints at how GE could put together the existing technology with little risk and make the amalgamation a success.
In his previous article, the author wrote about GE’s profitability challenge after the takeover of Alstom’s GT business. In this part, he talks about ABB’s reheat combustor design and proposes a new design wherein fuel would be injected at an angle.
This is the first part of a series by the author where he discusses GE’s takeover of Alstom GT business and GE’s challenge of profitability. In his upcoming articles, he talks about a proposed design for reheat combustor and how GE could redesign the Alstom/ABB reheat gas turbine.
To ensure reliable, trouble-free operation for extended periods of time, the seal must operate in a properly controlled environment. This requires that the seal be installed correctly, so that the seal faces maintain perfect contact and alignment, and that proper lubrication and cooling be provided.
Balance in critical equipment isn’t an optional goal for manufacturing facilities. It is a necessary part of keeping production running and preventing unplanned shutdowns. It’s particularly important for facilities with high demand for products, such as is the case for the Oman India Fertilizer Company S.A.O.C. (OMIFCO). OMIFCO is a joint venture business established to operate a state-of-the-art two train ammonia-urea fertilizer manufacturing facility in the Sur industrial estate in the Sultanate of Oman.
Antioxidants (AO) are critical components in turbine oil formulations and largely determine the life and performance of a lubricant. Even though these sacrificial warriors make up about 1% of a turbine oil formulation, they protect the base oil from oxidation and rapid deterioration.
This article is the first of a series on how natural gas is affecting the North American industrial gas turbine market, and whether the new gas turbines and future combined cycles can make the future more promising.
Located in southern India, the 2X1,000 GW Kudankulam power plant has set a rather poor precedent for policy makers trying to sell the importance of putting up new commercial nuclear plants to the people of a power-starved country.
(Richard Thomas dealt with shaft rubs in two blog posts: Back to Basics - Rubbing or not and Differentiating between fluid induced instability (oil whirl and oil whip) and a rub. In today's post, he answers a reader's question on how rubs can sometimes lead to reduced vibration amplitude)