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316(b) Rule Published in Federal Register on August 15, 2014

316(b) Rule Published in Federal Register on August 15, 2014

The purpose of this action is to reduce impingement and entrainment of fish and other aquatic organisms at cooling water intake structures used by certain existing power generation and manufacturing facilities for the withdrawal of cooling water from waters of the United States. This rule establishes requirements under section 316(b) of the Clean Water Act (CWA) for existing power generating facilities and existing manufacturing and industrial facilities that are designed to withdraw more than 2...
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Celeste N. Fay, Senior Project Engineer at Alden, receives the Women with HydroVision award for Environmental Protection and Mitigation

Celeste N. Fay, Senior Project Engineer at Alden, receives the Women with HydroVision award for Environmental Protection and Mitigation

TULSA - The PennWell Hydro Group is pleased to announce the inaugural class of recipients of the Women with Hydro Vision award. This award program is designed to honor the most influential women in the hydropower industry. As the hydroelectric power industry is rather diverse, the market was divided into 10 separate categories. Celeste N. Fay,Senior Project Engineer at Alden, received the Women with HydroVision award for Environmental Protection and Mitigation.
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Washington State’s Mercer Island Tunnel Ventilation Nozzle

Washington State’s Mercer Island Tunnel Ventilation Nozzle

Good ventilation is vital to modern transportation tunnel design, particularly for ensuring proper environmental health and safety.   How does a design firm ensure minimum energy requirements and adequate ventilation at the same time? Jacobs Engineering Group is currently under contract with the Washington State Department of Transportation (WSDOT) to provide design services for fire and life safety systems improvements within the Mount Baker and Mercer Island tunnels along I-90 in the Sea...
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The Hydraulic Zone of Influence of an Operating Oil and Gas Platform Cooling Water Intake

The Hydraulic Zone of Influence of an Operating Oil and Gas Platform Cooling Water Intake

The Offshore Operators Committee (OOC) is a consortium of entitities owning offshore leases and/or engaged in offshore activity as drilling contractors, service companies, or suppliers.  Member companies are required by the National Pollutant Discharge Elimination System (NPDES) permit for the Western and Central Portions of the Gulf of Mexico to monitor entrainment of passive lifestages (i.e., eggs and some larvae) in cooling water intakes at certain offshore facilities.  At offshore ...
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Validation of 3D Flow Simulation of Containment Vessels with the Nuclear Regulatory Commission

Holden, MA - Jan 6, 2014 - The U.S. Nuclear Regulatory Commission (NRC) would like to improve its ability to predict the distribution and stratification of the hydrogen within containment buildings during severe accident scenarios in light water reactors, during which a significant amount of hydrogen may be released. The NRC is also interested in the effectiveness of accident management systems such as containment sprays, coolers, and passive auto-catalytic re-combiners (PARs...
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Unique Water Wheel to Revitalize a Section of Los Angeles with Renewable Resources

Holden, MA - Dec 19, 2013 - Alden is part of an engineering design team working to bring artist and philanthropist Lauren Bon's LA River water wheel concept at Metabolic Studio to fruition. The project, called "Bending the River Back into the City" will include an inflatable 7 ft high dam and intake and discharge structures to divert river water to a 72 ft diameter water wheel. The water wheel will be powered by the diverted LA River flow and lift water to its top where it will be collected f...
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Navigating the Hydropower Relicensing Landscape

Holden, MA - Dec 9, 2013 - For hydroelectric utilities, the federal and state licensing landscape has changed over the past 10 years, and it continues to evolve. For utilities that haven’t gone through the process, the changes can come as a surprise. To hit the ground running before re-licensing time arrives, hydropower experts at ALDEN say it’s never too early to start planning. Here’s how. Know which changes will have an impact. The adoption of the now-standard integ...
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 Padmanabhan Honored by Indian American Society

Padmanabhan Honored by Indian American Society

Holden, MA - Nov 18, 2013 - On November 9, in Great Neck, New York, the Indian American Kerala Cultural and Civic Centre honored eight Indian Americans for their outstanding achievements in their field of specialization or for their service to the society. Among the honorees, for achievement in Engineering, was Alden’s former owner and current Senior Technical Advisor Mahadevan Padmanabhan (“Padu”). Padu is also an adjunct professor in the department of Mechanical Engineerin...
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