July 25, 2013: Vol. 12, No. 29 Advancing HVAC&R to Serve Humanity
And Promote a Sustainable World  



The HVAC&R Industry, ASHRAE's free weekly eNewsletter for HVAC&R professionals, provides relevant, timely information about industry and technology for people who create healthy, comfortable indoor environments.

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Industry News

Kitchens Can Produce Hazardous Levels of Indoor Pollutants
BERKELEY, Calif.—Kitchen stoves cause just as much air pollution as common outdoor pollutants and indoor air pollution from cooking may be as hazardous to people, according to new research by Lawrence Berkeley National Laboratory. The study found that grilling and frying foods with gas and electric appliances creates particulate matter. Burners produce ultrafine particles by volatilizing dust. These particles are potentially very harmful because they can enter the lungs and smaller particles can enter the bloodstream or other tissues. The researchers also found that the most common device for mitigating kitchen-related indoor air problems—range hoods—vary widely in performance. The study will be published in the journal Environmental Health Perspectives.

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CTBUH Recognizes Technologies That Enable Builders to Go Higher, Faster
CHICAGO—The Council on Tall Buildings and Urban Habitat (CTBUH) will recognize two building technologies with its 2013 Innovation Award, intended to recognize innovations that revolutionize the technology, sustainability and efficiency of tall building construction and operation. The Broad Sustainable Building (BSB) Prefabricated Construction Process enabled Broad Group to completely construct T30, a 30-story hotel building, in 15 days in Changsha, China, using preassembled components. KONE UltraRope is a new carbon-fiber hoisting technology with weight and bending advantages that effectively double the distance an elevator can travel in a single shaft to 1000 m (3,000 ft).

Click here to read more about the award recipients and finalists.

Engineer Accused of Forging Building Documents Faces 232 Felony Counts
SAN FRANCISCO—A San Francisco man accused of forging building documents related to several dozen properties throughout the city over nearly two decades will soon face trial on 232 felony counts. Jimmy Jen, 58, was arrested in August 2010 on suspicion of forging the signatures and stamps of two licensed engineers on hundreds of documents related to construction projects beginning in 1990. According to prosecutors, Jen, an engineer who wasn't always licensed, was often hired by building owners and home owners to expedite the city's permitting process. Rather than hiring a licensed engineer to review the construction projects, he allegedly impersonated unwitting engineers. Jen will be arraigned July 30.

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States' Indoor Air Laws Reach 10-Year Anniversaries
NEW YORK—On July 24, 2013, New York commemorated the 10th anniversary of the state's expanded Clean Indoor Air Act, which restricts smoking in bars, restaurants, bingo halls and bowling alleys. Meanwhile, Florida this month is commemorating the 10th anniversary of a constitutional amendment to the state's Clean Indoor Air Act. In Florida, smoking is still permitted in stand-alone bars, nightclubs, outdoor restaurants, and public spaces.

Click here to read more about New York's Law
Click here to read more about Florida's Law

Upgraded Portfolio Manager Includes New Ease-of-Use, Accuracy Features
WASHINGTON—The U.S. Environmental Protection Agency (EPA) has upgraded its Portfolio Manager online energy management and benchmarking tool. Features added in the upgrade include "add a property" and "add a meter" wizards to simplify data entry; easier-to-generate reports; and additional checks, alerts, and tips to help users ensure data accuracy. In addition, the upgraded Portfolio Manager will include 86 function types for each of the existing building types. Also, campuses will now be classified as properties with multiple buildings.

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In other news...

Tesco Pushes to Expand Industry-Wide Use of Natural Refrigerants
London's 'The Gherkin' to Receive CTBUH's Inaugural 10 Year Award
Tate Celebrates 50 Years in Access Floor Industry
EU Falls Short of Energy-Savings Goals
College Instructor Builds Energy-Efficient Home Out of Recycled Materials


ASHRAE to Offer New Course On Commercial Building Energy Audits
A new online course from ASHRAE offers guidance on best practices and other information on conducting an energy audit for building owners, managers and government entities. The course is part of its ASHRAE Learning Institute fall online course series. The two-part course, "Commercial Building Energy Audits," includes a summary of materials essential for performing ASHRAE Level 1, 2 and 3 audits; time-saving tips for energy auditors; how to hire an auditor; and what to ask for in a comprehensive audit report. In addition, it covers how to build a successful energy efficiency retrofit team; tips to make site visits quicker and more effective; tools to make analysis of billing data and energy savings faster and more accurate; and tools to perform diagnostics using measured data. The course takes place Nov. 4 and 6.

Click here to learn more.
Click here to register.

Feature of the Week

Efficient Space Humidity Control With Active Chilled Beam Systems
By Kenneth J. Loudermilk, P.E., Member ASHRAE and Darren S. Alexander, P.Eng., Member ASHRAE
In recent years, the use of chilled beams and radiant chilled ceilings has increased rapidly in North America due to the space and energy savings inherent to air-water systems. Although these systems have been widely used in Europe for more than 20 years, North American climates and other building design practices often result in higher space loads and moisture removal requirements than their European counterparts generally encounter. This article covers space conditioning and desiccant moisture removal for these systems. It also covers design issues such as balancing latent loads and raising the design dew point. 

This article originally was published in January 2012. Click here to download the article. It will be available here through Aug. 8.

After Aug. 8, 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

Rooftop Units From Lennox
DALLAS—Lennox has expanded the Landmark line of high-efficiency rooftop units. Models provide up to 12.7 EER and, with optional MSAV (multi-stage air volume) supply fan technology, up to 14.5 IEER. The Environ coil system on 7.5 ton to 25 ton (26.4 kW to 88 kW) gas/electric and electric/electric units provides increased reliability and sustainability.

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Commercial Thermostats From Venstar
CHATWORTH, Calif.—Venstar has upgraded its ColorTouch commercial thermostats. New features include real-time weather data, which continually updates to reflect outdoor conditions; humidity control, which works with the thermostat’s built-in humidity sensor to adjust indoor conditions via the HVAC system and/or a humidifier; and remote firmware upgrades, which enable traveling users to upgrade their thermostats from anywhere in the world.

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Axial Fan System From Ziehl-Abegg
KÜNZELSAU, Germany—Ziehl-Abegg offers the ZAplus fan system. It is a bionic axial fan in a compact unit made of high-strength composite material into which the motor and control are integrated and on which a diffuser can be mounted. This increases the fan's efficiency. The fan also features blades with a design inspired by owls' wings for quiet operation.

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