loading
Smart Grid Research: Power - IEEE Grid Vision 2050 Roadmap
2013 Edition, April 30, 2013 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The goal of this roadmap is to stimulate discussion and challenge ideas around the deployment of power and energy technologies. The IEEE PES (Power & Energy Society) Horizon 2050 team gives a general indication of when technologies could be expected for deployment, and the team takes...

Bars and stripes forever: How bar codes changed supply chains
December 11, 2019 - IEEE GlobalSpec

Editor's Note: Word came Dec. 5, 2019 of the death of George J. Lauer at the age of 94. A former IBM engineer, he played an instrumental role in the development of bar codes. Here, we reprise a 2017 article that looked at Lauer's role in that landmark technology that continues to shape supply chain...

Engineer's guide to gate valves and their configuration
November 19, 2019 - IEEE GlobalSpec

Gate valves are linear motion valves with a flat closure element that slides into the flow stream to provide shut-off. They are one of the most common valve types in use today and are excellent for use anywhere a shutoff valve is needed. Other common names for gate valves are knife valves and slide...

ASTM F2620-09 - Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings
December 1, 2009 - ASTM International

The procedures described in Sections 7-9 are primarily intended for (but not limited to) field joining of polyethylene (PE) pipe and fittings, using suitable equipment and appropriate environmental control procedures. When properly implemented, strong pressure/leak-tight joints are produced....

ASTM F2620-09e1 - Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings
December 1, 2009 - ASTM International

The procedures described in Sections 7-9 are primarily intended for (but not limited to) field joining of polyethylene (PE) pipe and fittings, using suitable equipment and appropriate environmental control procedures. When properly implemented, strong pressure/leak-tight joints are produced....

ASTM F1606-19 - Standard Practice for Rehabilitation of Existing Sewers and Conduits with Deformed Polyethylene (PE) Liner
November 1, 2019 - ASTM International

1.1 This practice covers the requirements for the installation of deformed polyethylene (PE) liner for pipeline rehabilitation. 1.2 This practice describes a method by which the PE liner may be installed with little or no excavation. 1.3 This practice applies to the rehabilitation of...

ASTM F2231-02(2019) - Standard Test Method for Charpy Impact Test on Thin Specimens of Polyethylene Used in Pressurized Pipes
August 1, 2019 - ASTM International

5.1 Brown and Lu4,5 show the Charpy impact energy is related to the ultimate critical temperature of the rapid crack propagation [RCP] behavior as measured by the ISO 13477, S-4 test.6 5.2 The test method may be used to determine the impact energy of polyethylene used in the manufacture of pipe ....

How to select the right bearing lubricant
May 24, 2019 - IEEE GlobalSpec

Bearing failure can be much more expensive than just the cost of buying a new bearing. Maintenance costs and production losses due to machine downtime can add up quickly. A leading cause of bearing failure is insufficient or improper lubrication, which can lead to contamination or excess heat...

Preventive vs. predictive maintenance: Which is right for you?
May 24, 2019 - IEEE GlobalSpec

Source: U.S. Air Force Medical ServiceReplacing smoke detector batteries twice a year is a common practice for homeowners. This sound advice is an example of preventive maintenance (PvM). But is this necessarily the best practice today? When the first "fire detectors" for home use were introduced...

Tolerance rings: eliminating tight assembly tolerances
May 24, 2019 - IEEE GlobalSpec

Bearings are precision mechanical components that are manufactured to tolerances measured by ten-thousandths of an inch. Shafts and housings must be made to the same tolerance levels to ensure a proper fit. If the housing tolerances are too tight the bearing may be damaged during assembly. If the...

Advertisement