During the past 10 years, the industry has devoted extensive investment efforts to the research and development of advanced seal face materials capable of extending the application performance range and mean time between repairs (MTBR) of mechanical seals in pumps, compressors and other fluid-handling rotating equipment.
Much of this research involving universities, material development companies, laboratories and mechanical seal companies focused on diamond-like (DLC) and surface-grown diamond film coatings on conventional mechanical seal face material substrates. For today’s end users, diamond film and diamond-like film provide solutions that enhance reliability, promote safety and provide exceptionally low emission sealing of critical equipment across many difficult-to-seal fluids particular to the oil and gas industries. Diamond film combines the physical properties of diamond with the most advanced seal technologies available.
Read the entire article here.
Taking a look at the impact of variable speed drives on mechanical seals
The use of variable speed drives has become more prevalent in industry in an effort to increase the efficiency of pumping systems. The ability to adjust the rotational speed of a rotodynamic pump has been a major factor in the ability to match a pump’s hydraulic characteristics to those of the system in which it operates.
Whether the mismatch was due to the variation in required pump output or due to incorrect sizing of the pump in the first place, there is no question that the ability to easily vary the pump speed has been a major advance in the overall performance of the pumping system.
Click here to read this article on pages 41 and 42 in the September/October 2014 issue of Fluid Handling magazine.
Pumps & Systems MENA, the new magazine for pump users in the Middle East and North Africa, announced that Henri Azibert, the Technical Director for the Fluid Sealing Association (FSA), has joined its Editorial Advisory Board.
“I look forward to working with the staff at Pumps & Systems MENA,” Azibert said. “The global pumps market is very important to our members.”
As an Editorial Advisory Board member, Azibert will be consulted on the latest trends and challenges in the MENA pumps market.
Click FSA Technical Director Joins MENA Magazine Board to read more.
The Department of Energy (DOE) has approved financing for FutureGen 2.0, clearing a key administrative step for the “clean” coal project based on capture of CO2 emissions. DOE announced plans to fund the $1.68 billion initiative, which plans to capture at least 90% of the CO2 from a 168-megawatt operating coal fired electric power generator near Meredosia, Ill.
FutureGen 2.0 is one of five DOE proposals to demonstrate CO2 capture technology on a commercial scale in the energy sector. While the other proposals involve use of CO2 for enhanced oil recovery, where the CO2 is used to pump oil out of a field, FutureGen 2.0 would sequester CO2 in an underground saline aquifer. This project involves the redesign of an existing plant rather than construction of a brand new facility. Captured CO2 at the Illinois plant would be transported along a 30-mile pipeline to a storage site in eastern Morgan County, where the gas would be injected approximately 4,000 feet below the surface.
The DOE already had concluded in a final environmental impact statement that FutureGen 2.0 would have “minor” impacts on groundwater, geology, land use and air quality. The project received critical air and water permits from Illinois in December 2013. The project is scheduled to become operational in 2017.
The DOE action constitutes the last step in the National Environmental Policy Act process but does not guarantee the project’s construction. The developers need to complete financial closing and obtain a handful of federal and state permits, including a CO2 storage permit from the EPA.
The DOE’s record of decision for this project can be studied at:
While defining all the possible causes of a failed expansion joint or pump flexible connector is important, doing everything possible to get it right the first time is equally important. This can save the end user money and time by delaying significant replacement costs and failures. All components and system requirements must be considered when choosing an expansion joint for the particular application. Uncovering all the factors that may influence reliable performance provides for the most ideal selection.
Click here to read more.
Some past “Sealing Sense” articles have focused on important considerations when replacing a failed expansion joint or pump flexible connector. While defining all the possible causes of a failure is important, doing everything possible to get it right the first item is equally important. This can save the end user money and time by delaying significant replacement costs and failures.
All components and system requirements must be considered when choosing an expansion joint for the particular application. Uncovering all the factors that may influence reliable performance provides for the most ideal selection.
Before addressing the expansion joint itself, ensure that adjacent piping and equipment conforms to good, solid piping engineering practices. Basically, this means the proper placement and design of the anchors, guides and supports are important for the expansion joint to function properly.
Click here to read more.