Topic Archives: Plumbing Applications
Feb. '04
Useful Service Life Evaluation Testing of Copper Tubing for Gas Distribution System in California
This paper presents the result from this test program, along with the key details of the test program. These include the scope of work, the test set-up, summary of test results and the conclusions based on analysis of the test results.
Jun. '99
ARI Adopts New Standard for Rating Direct Geoexchange Heat Pumps
New standard adopted January 1999 to establish performance criteria for comparison of direct geoexchange thermal to other methods of geothermal heating and cooling.
Jun. '99
An Outlook on Residential HVAC&R Applications in 2020
Summary of predicted results of upcoming changes in homes, speculation on impacts on residential HVAC&R equipment and applications and introduction of new research initiative (HVAC&R Research for the 21st Century, 21-CR) aimed at helping industry keep up.
Dec. '98
Research on Copper Joining Techniques Evaluates New Designs and Brazing Methods
Results of the second part of a two-part research effort, where the second part sought to ascertain whether experimental braze joint designs and alternate braze heating methodologies can economically provide improved brazing quality and higher product performance.
Nov. '98
Copper: Technology & Standards
Brief history of copper mining techniques from earliest industrial mining days through flash smelting, electrorefining, solvent extraction and electrowinning. Also covers changes in fabrication and production techniques.
Sep. '98
Copper Water Tube: Good for Consumers, Good for the Environment
Sep. '98
How Do They Do That? Making Copper Plumbing Tube
A tour of a modern copper tube mill illustrating how copper plumbing materials are produced.
May. '98
Copper DX Geothermal Heat Pump Web Site
The Copper Development Association (CDA) is sponsoring the creation of a web site designed to allow homeowners to compare the economics of heating and cooling their homes with copper direct exchange (DX) heat pump systems.
May. '98
Direct Geoexchange Comfort Systems: Technology Increases Performance and Reduces Costs
Review of technology advances since 1980 that simplify GeoExchange units, reducing installation and operating costs while increasing performance.
Mar. '98
ARI and CDA Sponsor Research on Copper Joining Techniques with Future Refrigerants
Summary of results of research project sponsored by the Air-Conditioning and Refrigeration Institute and Copper Development Association on whether current brazing techniques and methodologies for joining copper tubes are adequate for the alternative refrigerants proposed for future usage.
Feb. '98
New Research Program Focuses on Improvements for the 21st Century
The Air-Conditioning and Refrigeration Institute's Board of Directors' new research program (1997) focuses on pre-competitive research to provide solutions to obstacles preventing HVAC&R manufacturers from introducing new systems and components.
Feb. '98
CDA Backs DX Geothermal Heat Pump R&D
Look at research sponsored by the Copper Development Association to gain a better understanding of direct exchange ground coupled heat pumps (DX/GCHP) in order to make them a commercial success for home heating/cooling.
Dec. '97
Direct Exchange Thermal Systems:
The Wave Of The Future
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.
