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Engineering News


  • Multi-stage pumps can deliver efficiency gains - Various trade organizations have presented data suggesting that pumping systems account for roughly 20% of the worlds electrical energy demand. There have also been figures presented stating that 85 percent of the total cost of ownership of a pumping system is the cost of the electrical energy to operate the system.
  • The story below the first full-scale floating wind turbine - The innovative offshore floating Hywind wind turbine, moored in the North Sea off the Norwegian coast, demonstrates how Trelleborg Offshore’s syntactic foam buoyes contributes to the future of offshore power generation. “People see the tower and turbine, but forget that the expertise in designing the subsea portion is also critical, because it keeps the whole turbine afloat,” says Gary Howland, the company’s Renewables Sales Manager. “The dynamic floating structure weighs 5,300 tons and measures 165-m tall. A full 65m floats above the sea surface. The 13 km power offtake and communications cabling attached to the structure further adds to its weight.
  • Multi-speed gearbox enhances performance of electric vehicles - Transmission specialist Zeroshift has devised a multi-speed gearbox for electric vehicles (EVs) that needs no clutch; it is claimed that a combination of a damper inside the gear hubs and electronic control of the motor make ratio changes seamless. Having more than one gear ratio and the ability to shift without interrupting torque means the motor runs at higher efficiency, thereby extending range and the batteries' life expectancy by up to 10 per cent.
  • An alternative to copper-based grounding - Wind turbine towers are a natural target for lightning strikes. A good grounding system plays a critical role guarding against catastrophic damage to the blades, electronics, transformer, nacelle, and collector system out to the substation. Up until now, copper has been the predominant material in wire and cable used in the grounding of all manner of electrical systems. But the cost of copper fluctuates substantially and now regularly flirts with its all time high price reached back in mid 2008. This is not good news for wind-farm developers, and electrical and construction contractors who are under increasing pressure to control costs on these projects.
  • Arc Flash Labels & Signs Arc Flash Safety - Arc Flash labels are not required by code. The NFPA 70E code applies to arc flash. Neither this code, nor OSHA requires that arc flash labels be used. HOWEVER, properly labeling arc flash hazard areas is an important component of safety AND should you have an arc flash incident you can expect that a lack of labeling will weigh against you in the following investigation.
  • Water Abrasive System Used To Cut Pipe And Concrete In Water As Deep As 1,700 Feet - Dismantling decommissioned oil-drilling platforms, wells and pipelines requires precision demolition techniques. Gulf Coast specialty oil service contractor Proserv Offshore, a unit of Norwegian-based Proserv Group, has become known in the industry for using high-pressure, water-abrasive cutting technologies—also known as cold-cutting—to help remove a variety of oil and gas facilities.

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Articles

Hackney Ladish, Inc.

Hackney Ladish, Inc. is one of the largest and most versatile fitting producers in the world. Hackney Ladish, Inc. is headquartered in Dallas, TX and operates 2 facilities containing 380,000 square feet of manufacturing. Our Hackney™ , Ladish™ and Flo-Bend™ products are produced domestically and shipped worldwide.

Companies

Mathematical Notation for Orders of Magnitude

Mathematical Power Name
1018 or 1,000,000,000,000,000,000 one quintillion
1015 or 1,000,000,000,000,000 one quadrillion
1012 or 1,000,000,000,000 one trillion
109 or 1,000,000,000 one billion
106 or 1,000,000 one million
103 or 1,000 one thousand
102 or 100 one hundred
101 or 10 ten
100 or 1 one
10-1 or 0.1 one-tenth
10-2 or 0.01 one-hundredth
10-3 or 0.001 one-thousandth
10-6 or 0.000 001 one-millionth
10-9 or 0.000 000 001 one-billionth
10-12 or 0.000 000 000 001 one-trillionth
10-15 or 0.000 000 000 000 001 one-quadrillionth
10-18 or 0.000 000 000 000 000 001 one-quintillionth

Calculation

AWS A5.29 - Specification for Low-alloy Steel Electrodes for Flux Cored Arc Welding

This specification prescribes the requirements for classification of low-alloy steel electrodes for flux cored arc welding. The requirements include chemical composition and mechanical properties of the weld metal and certain usability characteristics. Optional, supplemental designators are also included for improved toughness and diffusible hydrogen. Additional requirements are included for standard sizes, marking, manufacturing, and packaging. A guide is appended to the specification as a source of information concerning the classification system employed and the intended use of lowalloy steel flux cored electrodes. ANSI Approved. approx.

American Welding Society

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Articles

ISA 5.1

ISA 5.1 - Instrumentation Symbols and Identification

This standard is intended to meet the different procedures of various users who need to identify and graphically depict measurement and control equipment and systems. These differences are recognized when they are consistent with the objectives of this standard, by providing alternative symbol and identification methods.

Instrument Society of America

Flange - Studding Outlet, ANSI Class 150, B16.5

Tangential Mount

Studding Outlet Flange Datasheet

Brick Industry Association

The Brick Industry Association (BIA) is the national trade association representing distributors and manufacturers of clay brick and suppliers of related products and services.

Trade Associations

California Steel Industries, Inc.

We are the only West Coast steel supplier manufacturing five different product lines: hot rolled, pickled and oiled, galvanized and cold rolled sheet, and electric resistance welded pipe. In most of our product groups, we have the broadest production capabilities on the West Coast. We compete with other western U.S. steel manufacturers, domestic suppliers from east of the Rocky Mountains, and with imported steel from around the world.

Companies

Denali Incorporated

Denali Incorporated is a privately held company founded in 1995, which has become — through a series of strategic acquisitions — the world's largest supplier of custom engineered, fiberglass reinforced composite corrosion resistant fluid handling products for such diverse industries as petroleum, chemical/petrochemical, power, pulp & paper, water/wastewater, microelectronic and pharmaceutical.

Companies

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