The IPP3, said to be the world’s largest internal combustion engine (ICE) power plant, was recently inaugurated at the plant site near Amman, Jordan. The plant is powered by 38 Wärtsilä 50DF multi-fuel engines with a combined capacity of 573 MW.
In the second part of this series, the author highlighted the uses of ASCS and discussed multi-point and mono-point systems. This article focuses on the vibration control unit, speed controller and surge controller unit.
Vibration control unit
Radial bearing vibrations:
In the first part of this series, the author explained the significance of the anti-surge protection system in a compressor. In this article, he compares multi-point systems with mono-point systems and highlights the uses of ASCS.
The parameters affecting the anti-surge control system are discharge pressure, suction pressure, flow rate and suction temperature.
Surge control systems
Vishal Jariwala, Daryll Turner and James Hardin of Elliott Group presented a paper titled, ‘Computational Investigation of Coupling Guard Heating and Mitigation’ at the 43rd Turbomachinery & 30th Pump Users Symposia (Pump & Turbo 2014) that took place from September 23-25, 2014 at Houston, TX. Below are some of the excerpts:
Centrifugal pumps are widely used in industrial applications. Pumps driven by medium-to-low-power motors (70kW), for example, represent almost all of the installed machines deployed in oil & gas process plants.
In our last column, we talked about nitrous oxide as a potent greenhouse gas and how it was often mistakenly associated with power plant emissions. In this column, we will continue with the topic of greenhouse gases (GHGs) but focus on natural gas leakage and unburned hydrocarbons from the U.S. energy infrastructure.
Mitsubishi and Hitachi have traditionally focused on different market sectors. Where Mitsubishi targeted large gas turbines such as the 501G and 501J, Hitachi focused on the small and medium-size market with its H-25 and H-100 (formerly known as H-80) models, often referred to as the H-series.
Screw compressors are categorized as intermittent motion compressors (non-continuous flow). They can also be categorized with medium flow and medium pressure compressors compared with other types of compressors on pressure /flow chart for compressor types.
Turbomachinery International just visited GE Power & Water’s Greenville campus which is dedicated to the development and manufacture of heavy-duty gas turbines. The big news was the result of validation testing on the 9HA.01 gas turbine.
Below are excerpts from a paper titled, ‘Save your centrifugal machinery during commissioning’ presented at the 43rd Turbomachinery & 30th Pump Users Symposia (Pump & Turbo 2014) in Houston, TX from September 23 to 25, 2014.
Below are excerpts from a paper titled, ‘Save your centrifugal machinery during commissioning’ presented at the 43rd Turbomachinery & 30th Pump Users Symposia (Pump & Turbo 2014) in Houston, TX from September 23 to 25, 2014. It was presented by Arun Kumar, Deputy General Manager, Maintenance & Reliability, and Mohit Sabharwal, Assistant General Manager, Maintenance & Reliability, HPCL- Mittal Energy Ltd., India.
Below are excerpts from a paper titled, ‘Babbitted bearing health assessment’ presented at this year’s Middle East Turbomachinery Symposium by John K. Whalen of John Crane, Thomas D Hess Jr of DuPont Engineering Research & Technology Rotating Machinery Group, Jim Allen Nova Chemicals Corporation, Jack Craighton, Schneider Electric.
Below are excerpts from the tutorial, “Shop rotordynamic testing: Options, objectives, benefits and practices” presented by John A Kocur, Jr., of ExxonMobile Research and Engineering and C Hunter Cloud of BRG Machinery Consulting at METS III in Qatar.
Performance tests should be divided into tests for drivers and driven equipment. For drivers, especially gas turbines, output and efficiency are subject to manufacturing tolerances. Consequently, if meeting a contractually agreed upon power level is critical, a factory performance test is advisable.
Just a few months ago, the oil & gas industry wallowed in the comfort of oil priced well over $100 a barrel, a range it had enjoyed for many years. Fast forward to early February 2015: those attending the GE Oil & Gas Annual Meeting (AM) in Florence, Italy faced prices below the $60 mark. The shockwaves from this tectonic shift were still reverberating as the conference began.
With so many sources of renewable generation now on the grid, and lots more on the way, it’s important to gain an understanding of how future dispatchable resources will need to behave in order to accommodate increased renewable generation. A recent study shed some light in this area.