October 31, 2013: Vol. 12, No. 43 Advancing HVAC&R to Serve Humanity
And Promote a Sustainable World  



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Industry News

Energy Efficiency Is World's Most Important 'Fuel'
PARIS—Energy efficiency is the world’s most important "fuel," according to a new report from the International Energy Agency (IEA). Investments in energy efficiency provide such large savings that the energy saved completely surpasses the energy generated by most forms of generation. "The scale of recent investment in energy efficiency worldwide makes it as significant in its contribution to energy demand as investment in renewable energy or fossil fuel generation," states the Energy Efficiency Market Report. IEA calculates that between 2005 and 2010, that energy-efficiency measures in 11 of IEA's member countries, including the United States, saved the energy equivalent of $420 billion worth of oil. IEA said that were it not for the implemented energy-efficiency measures, consumers would be using and paying for two-thirds more energy than is the case.

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'Reverse Microwave' Chills Beverages in Seconds
LONDON—A UK company has developed what it calls "a low-energy, rapid cooling device for prepacked beverages for commercial use and a user-friendly fast-chill, on-demand product for the domestic market." The V-Tex "reverse microwave" uses a "start-stop rotational sequence" to create a Rankine vortex, which essentially keeps a drink in its original state while quickly bringing down the temperature. The manufacturer, Enviro-Cool, says the device requires nearly 80% less energy than standard drink chillers. It also frees up standard refrigerator space, since most beverages can be stored at room temperature elsewhere until right before serving. Consumer trials are scheduled to start this week at a supermarket in the Netherlands. The company has not given specific release dates for the commercial and domestic versions of V-Tex.

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ASHRAE Publishes 2013 Version of IAQ Standard
The 2013 version of ANSI/ASHRAE Standard 62.1-2013, Ventilation for Acceptable Indoor Air Quality, consolidates the 2010 standard and 10 published addenda. "The 2013 version of Standard 62.1 continues the trend of increasing clarity while adding flexibility," said Roger Hedrick, chair of the Standard 62.1 committee. Significant changes to the newly published version include the modification of the Zone Air Distribution Effectiveness table to increase the ventilation effectiveness of certain underfloor air distribution systems, modification of the requirements for the quality of water used in humidification systems, and clarification of building level pressurization requirements.

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New 49ers Stadium Uses Solar to Aim for Net Zero
SANTA CLARA, Calif.—The under-construction new stadium for the NFL's San Francisco 49ers uses 49 frames of solar panels to achieve a goal of net zero energy. During regular season home games, the entire stadium will not use any power that doesn't come from the sun. According to NRG, the company that recently installed the 49th solar frame at Levi’s Stadium in “Silicon Valley,” it is the first NFL stadium to have sustainability and LEED certification standards designed and built into its architecture. The 49 solar frames cover 9,574 ft2 (889 m2) of a suite roof with a total of 544 solar panels having an efficiency of 20%. In total, the solar arrays at the stadium will have a combined peak capacity of about 375 kW.

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Thermoelectric Bracelet Personalizes Heating and Cooling
CAMBRIDGE, Mass.—Heating or cooling certain parts of the body—such as applying a warm towel to the forehead if you feel chilly—can help maintain a person's perceived thermal comfort. Using that concept, four MIT engineering students developed a thermoelectric bracelet that monitors air and skin temperature, and sends tailored pulses of hot or cold waveforms to the wrist to help maintain thermal comfort. The product, called "Wristify," is now a working prototype. And although people would use the device for personal comfort, the team says the ultimate aim is to reduce the energy consumption of buildings by cooling and heating the individual—not the building. The team estimates that if the device stops one building from adjusting its temperature by even just 1°C (1.8°F), it will save roughly 100 kWh per month. The team developed the device as part of an MIT competition, for which they received the $10,000 first-place award. 

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In other news...

GHG Emissions From Large Facilities Decrease 10% From 2010, Says EPA
Austrian Team Winner, UNLV Second in Solar Decathlon
DOE Provides $60 Million for Development of Affordable, Efficient Solar Power
DuPont Calls for Release of Final German Report on HFO-1234yf
AIA Index of Construction Activity Continues Positive Trend
EPA Student Grants Fund Innovative Sustainability Projects


Building Energy Disclosure Session to be Offered by ASHRAE at AHR Expo
Disclosure and transparency requirements, similar to food labeling and automobile fuel efficiency, are increasingly becoming part of the buildings industry. The implications of this growing trend will be examined in a free session offered by ASHRAE at the 2014 AHR Expo. Held in conjunction with the 2014 Winter Conference, AHR Expo will be held Jan. 21–23 in New York. ASHRAE’s AHR Expo Session, “Trends in Building Energy Disclosure: Increasing Energy Efficiency without Retrofits,” will be held from 3-4 p.m., on Tuesday, Jan. 21. No badge or ticket is required. Attendees will earn 1 NY PDH, 1 AIA Learning Unit and 1 LEED AP credit.

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Feature of the Week

Problems Related to Air Handler Leakage
By James B. Cummings, Member ASHRAE; and Charles Withers Jr.
This article considers energy impacts of AHU leakage. It focuses primarily on IAQ problems and health risks caused by duct leakage, especially as they relate to the location of the AHU. This article was the winner of the 2009 ASHRAE Journal Paper Award.

This article originally was published in January 2008. Click here to download the article. It will be available here through Nov. 14.

After Nov. 14, access to the article from this eNewsletter will no longer be available. It will remain available for free download by members here and for purchase by nonmembers in the ashrae.org online store.

Product News

Single-Zone, VAV Terminal Systems From Trane
MACON, Ga.—Trane introduces its newly redesigned family of configurable terminal products that feature factory-commissioned single-zone variable air volume (VAV) technology designed to improve efficiency by up to 66% compared to units using permanent split capacitor (PSC) motors. Trane single-zone VAV systems combine electronically commutated (EC) motors and factory-programmed variable speed controllers that adjust the speed of the unit’s motor and its air volume to meet unique load requirements in various spaces of a building.

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Condensing Boiler From Harsco Industrial Patterson-Kelley
EAST STROUDSBURG, Pa.—Harsco Industrial Patterson-Kelley announces the P-K SONIC condensing boiler. It features the company’s DUET technology, which allows each section of the engine to be engineered independently using different composite stainless materials to deliver better heat transfer and higher reliability through the condensing process.

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IEQ Monitoring Display Panel From Rotronic
HAUPPAUGE, N.Y.—ROTRONIC’S wall-mounted or bench-top CO2 display simultaneously measures and records carbon dioxide, humidity and temperature with the company's ROTRONIC HYGROMER IN-1 humidity sensor. The instrument can be configured directly with buttons and stored data can be exported to a USB stick for analysis with the company's SW21 software package.

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