SLAC Today is available online at:
http://today.slac.stanford.edu
In this issue:
A River Runs Through It
Safety Today: E-Waste Recycling Tips
They are the Champions--of the Earth
Tuesday - July 2, 2007 |
A River Runs Through ItChildren are taught from kindergarten not to mix water and electricity, yet this is exactly what new computer cooling systems recently installed in Building 50 are designed to do. Because modern computing towers create much more heat than their predecessors, innovative cooling systems are required to keep them running. One solution in new computing systems at SLAC runs cold water within a foot of delicate electronics. "Older cooling systems can use as much electricity as the computers themselves," said Randy Melen, High Performance Storage and Computing team leader in Scientific Computing and Computing Services. "The new cooling system's instruments and equipment is quite sophisticated, making computer cooling much more efficient, reliable, and quiet." Older systems use water to cool air that, in turn, is vented towards machines to keep them cool. In contrast, the new systems bring cold water directly into the server racks. Hot air from the circuitry is cooled in an enclosed space, and the warmed water is pumped out. No noisy, massive vents are required and the energy savings are substantial. The new water cooling systems were first installed at SLAC the first week of June with new computer clusters for SLAC's work with the ATLAS experiment at the Large Hadron Collider. The technology will also be used in coming hardware upgrades for the Gamma Ray Large Area Space Telescope. |
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E-Waste Recycling TipsToday's electronic devices are a wonderful feat and use of technology, but have created a significant waste disposal problem: e-waste. According to the U.S. Environmental Protection Agency, 3.2 million tons of electronics—including computers, monitors, copiers, fax machines, printers, televisions, and other electronic items that become "obsolete" in the eyes of consumers—are sent to landfills each year. Within California alone, the California Integrated Waste Management Board estimates that there are currently 6 million obsolete computers stored in homes and offices, and 10,000 to 15,000 more electronic devices become obsolete daily. The result is a growing challenge for businesses, residents, and local governments as they search for ways to reuse, recycle, or properly dispose of this equipment. A recent SLAC Today article described how California has increased disposal requirements on "universal wastes," common household hazardous waste items such as fluorescent lights and batteries. Now the state also requires individuals and businesses to manage e-waste as universal waste. One result of this new legislation is that computer equipment retailers now charge computer purchasers a fee that goes into a state funded program for the recycling of the equipment. The fund helps support the market for state-approved recyclers to see that e-waste is properly managed and recycled. In addition, all individuals and businesses are asked to adhere to good e-waste recycling practices. The following questions and answers offer guidance on how to manage e-waste at SLAC and at home.
What is e-waste and why is it a problem? |
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