May 23, 2013: Vol. 12, No. 21 Advancing HVAC&R to Serve Humanity
And Promote a Sustainable World  



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Industry News

Scientists Almost Unanimous on Climate Change, Cause
LONDON—A survey of thousands of peer-reviewed papers in scientific journals has found 97.1% agreed that climate change is caused by human activity. Authors of the survey, published in the journal Environmental Research Letters, said the finding of near unanimity provided a powerful rebuttal to climate contrarians who insist the science of climate change remains unsettled. The survey considered the work of some 29,000 scientists published in 11,994 academic papers. Of the 4,000-plus papers that took a position on the causes of climate change only 0.7%, or 83 of those thousands of academic articles, disputed the scientific consensus that climate change is the result of human activity, with the view of the remaining 2.2% unclear.

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The 20 Most Expensive Buildings in the World
MUMBAI, India—The continually increasing costs of construction aren't stopping many large building projects. In fact, many of the most expensive buildings in the world were designed to cost a lot. Extravagant edifices in exotic areas occupy many of the rankings in the list of the 20 most expensive buildings in the world compiled by The Marina Bay Sands, a luxury resort in Singapore, tops the list with a $6 billion cost to build. The Resorts World Sentosa, also in Singapore, is second. Global numbers 3 and 4, The Emirates Plaza in Abu Dhabi and The Cosmopolitan in Las Vegas, are the most expensive buildings in their respective locales, both known for their lavishness.

Click here to view a slideshow of the entire list.

Energy Efficiency Grounded Penguins
NEW YORK—The evolution of flightlessness in penguins has mystified scientists for decades. A recent study has found that energy efficiency is the reason why penguins evolved to waddle for miles across ice rather than just fly. The study found that guillemots, a bird similar to penguins but with the ability to fly, are very inefficient. The birds expend 31 times more energy while flying than when at rest. Also, penguins are well-adapted for finding food in water—adaptations that progressively made flying impossible. Their wings became shorter, with stouter bones. Their body mass increased, both to optimize muscle contraction rates for the slower wing beats, and to allow them to store more energy for longer dives in water.

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ANSI Developing Energy Efficiency Roadmap
WASHINGTON—The American National Standards Institute (ANSI) Energy Efficiency Standardization Coordination Collaborative (EESCC) is moving to develop a standardization roadmap advancing energy efficiency in the built environment. The collaborative’s five working groups have scheduled a series of June-July workshops to begin the process. The EESCC roadmap will identify current and forthcoming standards, codes, and conformance programs, pinpoint potential gaps, and articulate what additional standardization activities may be needed to advance energy efficiency relative to the built environment. The first draft of the roadmap is expected by October 2013, with the final version anticipated for publication by mid-2014.

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Kroger Converting Food Waste to Energy
COMPTON, Calif.—The Kroger Co. has developed an energy production system that converts food that cannot be sold or donated into clean energy to help power its Ralphs/Food 4 Less distribution center near Los Angeles. The Kroger Recovery System is designed to process more than 55,000 tons of organic food waste into renewable energy annually, providing power for the 650,000 ft2 (60 400 m2) distribution center. By diverting that food waste—the equivalent of 150 tons per day—the system will also reduce area truck trips by more than 500,000 miles each year. The aerobic conversion system converts the carbon in organic material into methane.

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Solar Power Growing in Popularity for Off-Grid Refrigeration
NAIROBI, Kenya—Solar power is increasingly gaining currency in developing countries as a means to power refrigerators and freezers for people living off the electricity grid. Traditionally, refrigerators off the grid either used kerosene or gas, which are harmful to the environment and pose a health hazard to users. Rural hospitals were the initial adopters of using solar power, but others are following suit. Tim Jessop, general manager of Chloride Exide, a battery and backup systems provider in Kenya, said "We are seeing growing demand for solar fridges and freezers for Safari camps, hotels and lodges, and small businesses in remote areas of the country."

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In other news...

AC, Heat Pump, Commercial Water Heater Shipments Increase in Latest AHRI Data
Skyscraper to Use Piezoelectric 'Hair' for Its Power
Plumbing Organizations to Partner on Update to 'Hunter's Curve' Water Supply Methodology
Incoming CIBSE President Calls on Engineers to Reduce Energy Consumption
Lightning Protection a Highly-Charged Concern in Construction


Papers Sought for Buildings in Developing Economies Conference
Papers are being sought for a conference focused on the design, construction and operation of buildings in developing economies. Organized by ASHRAE and the Philippines Chapter, the "Efficient, High Performance Buildings for Developing Economies" Conference will take place April 24-25, 2014, in Manila, Philippines. It is co-sponsored by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) and endorsed by the International Association of Plumbing and Mechanical Officials (IAPMO). Abstracts (400 or less words in length) are due July 12, 2013. If accepted, papers are due Oct. 18, 2013.

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Feature of the Week

Used Filters and Indoor Air Quality
By Gabriel Bekö, Ph.D.
The presence of used filters in a ventilation system can have an adverse impact on perceived air quality, Sick Building Syndrome symptoms, and performance of office work. This article briefly summarizes the state of research into this problem. Possible mechanisms responsible for the emission of noxious compounds from ventilation filters are described. Also, the economic impact of polluting ventilation filters and possible engineering solutions are discussed.

This article originally was published in March 2009. Click here to download the article. It will be available here through June 6.

After June 6, 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 online store.

Product News

Energy Recovery Wheel From Innergy tech
DRUMMONDVILLE, Quebec—Innergy tech’s I3 Energy Recovery Wheel recovers both sensible and latent energy. It features the company's patent-pending AirLoop labyrinth sealing system, designed to reduce fan energy loss by as much as 40% compared to conventional energy wheels.

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Active Chilled Beam From SEMCO
COLUMBIA, Mo.—SEMCO offers the IQHC active chilled beam, designed to provide high capacity while delivering up to 25% and 50% reductions in pump and fan horsepower, respectively, compared to conventional chilled water loop or rooftop forced air HVAC system methods. It is designed to operate with dedicated outdoor air dehumidifiers to handle outdoor air and humidity.

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Web-Enabled Central Controller From Mitsubishi Electric
SUWANEE, Ga.—The EB-50GU-A Web-enabled central controller from Mitsubishi Electric monitors occupancy and humidity in up to 50 indoor units individually, in a group, or in a collective batch operation. The controller also reports on auxiliary contacts on the indoor units, and the status of the outdoor unit with dual setpoint functionality.

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