Designers of air conditioning and refrigeration equipment have fresh guidelines for noise limits. The Air-Conditioning and Refrigeration Institute (ARI), based in Arlington, VA, publishes the new performance standard, ARI Standard 260-2001. Its title is "Sound Rating of Ducted Air Moving and Conditioning Equipment." That standard, along with 20 others, is available for free download on ARI's website, www.ari.org. Standard 260-2001 establishes a method of rating sound in indoor portions of ducted air moving and conditioning equipment. It provides definitions and requirements for acquiring mapped sound data. Sound power level calculations and ratings also are included, as are minimum data needs for published sound ratings and conformance conditions. ARI standards set rating criteria and procedures for measuring and certifying product performance. The ratings help buyers choose the proper equipment for specific applications.
Almost every automaker has had to 'pick a side' when it comes to alternative fuel options and ways to divest from a reliance on gasoline. Fiat is looking to back compressed natural gas or liquid propane as an interim solution.
Designing and filling a new type of water bottle might take less engineering work, but the description will help kids understand how science, math, and engineering influence their lives even through things that seem mundane.
Against a backdrop of mounting product complexity and a need to keep a lid on development costs, companies are recognizing a need to make simulation a more integral part of the design process. In response, vendors in the CAD world are building out CAE functionality as part of their CAD suites while simulation vendors are building tighter integrations to leading CAD tools. Keith Meintjes, Ph.D., Practice Manager, Simulation and Analysis at CIMdata, Inc., joins Design News CAD Editor Beth Stackpole in this radio program to explore the new face of integrated CAD and CAE, how companies are benefitting from this tighter partnership between platforms, and how integrating CAE earlier in the development cycle pays off in optimized product designs.
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