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The article reports that according to Safran Aircraft Engines the manufacturing quality issue found on the CFM Leap 1B low pressure (LP) turbine disk will not have much of an impact due to a double­-sourcing strategy and a redeployment of some of the workforce. The article further states that following the discovery of the defect, Boeing had temporarily suspend flights of the 737 MAX aircraft.

The article focuses on the aspects of reduce order modelling for detailed combustion chemistry among turbine, boiler, and furnace equipment designers as part of meeting the international emission standards. Topics discussed include the several aspects to be considered in clean combustion design such as integration of alternative fuel and fuel flexibility, the simulation capabilities of combustion system, and the application of equivalent reactor approach.

The article discusses high-speed motors for medical ventilators. Topics covered include balancing iron, joule and mechanical losses, brushless motors that use two bearings and turbine fan design. Also mentioned are recommendations for motor manufacturers such as the careful specification of motor components.

The article discusses bearings and seals, which are major elements of hydro turbine systems. Particular focus is given to new tools and materials used as remedies for problems with bearings and seals. For example, water can replace oil as bearing lubrication, polytetrafloroethylene can be an alternative to babbit for thrust bearing facings, and lignum vitae wood can be used for underwater bearing applications. When it comes to seals, the HyrdoSele cartridge seal from James Walker & Co. is cited as a measure to reduce shaft leakage.

The article discusses impact of Brexit and non-government aid on development of renewable energy sector in Great Britain. Topics discussed include reduced financial support by government to tidal technology companies; success of the marine energy company Nova Innovation in development of the M-100 turbine using tidal array technology; information on the operation and working of turbines used to generate energy; and views of Nova's managing director (MD) Simon Forrest on the same.

The article focuses on the development of a small gas turbine engine made of silicon by Alan Epstein, professor of aeronautics and astronautics at the Massachusetts Institute of Technology, and his colleagues. Researchers discovered that the overall concepts of the microengine were similar to a turbine of any size and that fluid mechanics of the microengine turned out to be the same as those of larger engines.

This article focuses on the machine design of a planetary gearbox developed by Timken to address the limitations of common wind turbines. It discusses the problems encountered with wind turbines, the development of a product called the Integrated Flex-pin Bearing to equalize gear loads, and the principle behind Flex-drive planetary gear trains.

The article discusses aerospace firm HyperMach's announced plans for "SonicStar," a hybrid-electric supersonic business jet as of November 2012, with a focus on airframe design and electric-based propulsion. Topics include engaging ramjet capabilities to achieve Mach 5 speeds, the development of the "Hypersonic-Magnetic Advanced Generation Jet Electric Turbine," and overcoming sonic boom.

The article discusses the Epice aero-engine demonstrator, a satellite launcher, and an X4 helicopter which are being developed with funds issued by the French government for economic stimulus. The aerospace group Corac, which proposed the Epice project, intends to develop technology for composite fan blades, nacelle systems, and turbines. French President Nicolas Sarkozy says that the government will fund a Next-Generation launcher, a high-speed broadband project, and a helicopter project.

Features the Defense Evaluation and Research Agency, a collaboration of the Great Britain Ministry of Defense and engineers from the Ohio State University to improve gas turbines in civilian applications. Testing of heat transfer in a high-temperature gas turbine; Investigation of heat transfer on turbine blades for the development of a high-performance cooling system; Research on the uses of instrumentation technology.

The article offers information on the usage of splitters to control secondary flow, an important process in aerodynamics. Topics discussed include engineering disciplines lies in the designing of turbine design; involvement of secondary flow and secondary losses; and importance of increasing the number of blades in the row to reduce the mixing loss in aerodynamics.

The article reports on the plan of the hydroelectric plant operators to double its plant electric generating capacity by constructing a new powerhouse with a 60-megawatt turbine in Rainbow Dam, Montana. The company PPL Montana LLC stated that the turbine has an improved and fish-friendly design. It is inferred that the larger turbine offers a significantly more fish-friendly design than the latest small turbine configuration including wider flow passages, less rotating surfaces and improvements to the turbine intake screens.

The article reviews the Atlantis AK-1000 turbine, the world's largest single-axis tidal turbine as of August 2011, with a focus on the turbine's need for a large-capacity braking system, the environmentally sensitive nature of the project, and the design of the horizontal-axis turbine.

The article discusses the ongoing development of the Aerogenerator X vertical-axis turbine by British engineers from Wind Power Ltd. as of August 2010. The 10-megawatt (MW) machine is expected to eliminate the need for a wind turbine tower and reduce stress on blades and foundations found in conventional horizontal-axis machines. Designers note that the Aerogenerator X's vertical orientation allows it to produce energy regardless of where the wind is coming from. Vertical-axis turbines are deemed suitable for offshore use.

The article reports on the plan by researchers at the Center for Ocean Energy Technology at Florida Atlantic University in Boca Raton, Florida, to put sea turbines into the Gulf Stream for the generation of electricity. Led by the American Society of Mechanical Engineers (ASME) former president and Center's executive director Sue Skemp, the group forecasts that turbines could generate between four and 10 GW of power, enough to resolve 30 percent of the state's electricity consumption.

The article reports on the project of Rolls-Royce-Atkins which is intended for a low-head barrage that has another type of turbine. It mentions that the turbine design produces electricity on the incoming and outcoming tides. It notes that the project will see Rolls-Royce and Atkins Group build the turbine design to understand costs and environmental aspects.

The article presents specifications in repairing low-pressure rotors with cracked blade attachments among power plants in the U.S. Stress corrosion cracking in the blade attachments of their low-pressure rotors mostly happen due to excessive work. Solutions of such problems range from redesign of the attachment and blade replacement to in-situ weld repair. Approaches can significantly restore the steam turbine performance while minimizing outage duration. However, proper installation of the system is the most efficient approach in preventing the problems to happen.

The article announces that E.On AG has been forced to postpone its plan to construct a 15-megawatt wind power plant at Denshaw in Oldham, England. E.On planned to build seven 100-meter tall turbines at what it had identified as a suitably windy site, but Oldham council rejected it due to unsightly overhead power cables. The company made an appeal and revised the plan but the Planning Inspectorate still turned down their request.

Introduces the world's most efficient simple-cycle gas turbine LMS 100 by GE Power Systems. Extensive collaboration of design and manufacturing units; Usage of off-engine technology within compression section of gas turbine; Application of LMS 100 in new and existing coal plants.

Discusses the development of hydro turbines design by Alden Research Laboratory and Concepts/NREC to improve conditions for migrating fish. Impact of fish mortality when there are several dams on the same river; Information on biological testing of the turbine; Expectation on the cost of the turbine.

Reports the building of 1.4 MW prototype of a rotary turbine engine by Numerics Technology in Bedfordshire, England. Confidence of the firm on the capabilities of the engine; Assistance of the Department of Trade and Industry on building the prototype; Location of the combustion chambers.

Reports that EPRI is preparing to field test beta series microturbine prototypes. Purpose of the move; Information on a field evaluation and demonstration program; Price for each unit and access to the entire test program results; Names of participating microturbine manufacturers.

Reports that the Gas Research Institute has teamed up with Allison Engine Co. and the United States Department of Energy to develop the first industrial-size turbine to use a natural gas-fueled catalytic combustion system. Benefits of the Advanced Turbine System (ATS); Schedule of product introduction; Features of ATS.