2005 Archive
Oct. '05
Copper Speeds Commerce, Saves Money in RFID Antennas
Rapidly advancing technologies ensure a role for copper in future RFID (RF identification) systems.
Sep. '05
Hemispherical Copper Domes in Architecture
Hemispherical copper domes create art in architecture. This paper discusses the design benefits of self-supporting copper domes, their design flexibility and examples showing their wide range of applications in the field.
Jul.
"05
Motor Upgrades Help Cut HVAC Energy Costs at Emory University
Emory University, located in Atlanta, is a recognized center for
biomedical research and home to some 11,000 students. Keeping its students
and laboratories cool requires more than 25,000 tons of air conditioning
with an energy bill of $2.5 million per year. Use of premium-efficiency
motors in HVAC equipment helps keep energy costs down. So far, Emory"s
power bill for chillers has been cut by 10% and it expects to double
that in the future.
Feb.
"05
Copper Corrects Power Quality Problems in Columbus, Ohio, High-Rise Office Tower
Recurring problems vanish when copper replaces aluminum feeders:
Built in 1982, Capitol Square and its electrical system served its early
occupants well. Until, that is, growing loads and some false economizing
taken at the time of construction caught up with the original system.
By the time the new owners took over management of the builidng in 1998,
the old wiring system had begun to cause noticeable problems.
Feb.
"05
Copper Checks in @ Internet Hotel
The Downtown Phoenix Telecom Exchange (DPTE) houses a 380,000-sq
ft (35,300 sq m) Internet hotel in the former offices and printing plant
of the Arizona Republic.
We dont see the power in use because much of the action takes
place behind locked doors in unremarkable, often windowless buildings
called Internet data centers (IDCs), also known as telecom exchanges
or collocation centers and, less formally, as Internet hotels, server
farms and carrier condos. Theyre home to all sorts of Internet-related
companies, through whose servers, routers and modems flow the bits and
bytes of modern e-commerce. Restructuring the 50-year-old building for
its new role meant replacing the entire electrical system with a modern,
100% copper system designed to ensure maximum power quality and reliability.
Jan.
"05
Kodak Focuses on NEMA Premium Motors
Kodak Park, the international photo giants main research and
manufacturing facility in Rochester, New York, is one of the worlds
largest industrial technology centers: the 100-year-old complex covers
eight square miles, contains 20 million square feet of buildings, hundreds
of miles of roads and 22 miles of railroad track. Two power plants with a combined capacity of
200 MW generate most of the electrical energy the facility consumes annually.
Photo giant"s Total Motor Program saves at least $250,000 per year by
installing high efficiency motors whenever possible, irrespective
of size. Kodak is cutting energy consumption by applying a lot of smart
engineering, but a large portion of the savings comes as a result of
a company-wide program that focuses on its electric motors.
Jan.
"05
Copper Motor Rotor Project
The incorporation of copper for the conductor bars and end rings
of the induction motor in place of aluminum would result in attractive
improvements in motor energy efficiency. Lack of a durable and cost effective
mold material has been the technical barrier preventing manufacture of
the cast copper rotor. This project seeks to identify mold materials for
copper pressure die-casting that will allow economical production of
copper motor rotors.
The Latest News
Copper-based Solar Cells:
Good for the Environment, Good for the Consumer
Copper has long been used in solar heating/hot water systems, where it is commonly used in heat exchangers. Now, it promises to become equally valuable in photovoltaic (PV) systems. These systems produce electricity through the action of sunshine on certain semiconductors, including so-called thin-film materials and the currently most promising material: copper indium gallium diselenide or CIGS.
The Presidential Dollars
Golden Collectibles or the Next Coin of the Realm? The U.S. Mint is betting it’s got it right this time. The Mint placed into circulation the first of its new golden dollar coins featuring, for the initial issue, George Washington.
High Strength Copper Steel for Rail Tank Cars to Bridges
This paper shows that the new Copper Steel has advantages over steel presently used in railroad tank cars. The higher strength leads to weight saving; higher impact fracture toughness mitigates against brittle failure particularly at low temperatures. An update of recently completed bridge using the Cu Steel is also provided.
Helpful Hints
Innovations covers technological changes involving copper.
Articles are archived by subject area (see Topics Archives on the left) and by year of publication (see Yearly Archives on the left). You can also search all of the Copper Development Association's Web site by using Search on top right of every page.
If you have articles covering copper technology that you would like to suggest for inclusion here, please send your suggestions to Editors, CDA Innovations.
