May 29, 2014: Vol. 13, No. 22 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

Controls Could Halve Packaged HVAC Energy Use, Says Study
RICHLAND, Wash.—Commercial buildings could cut their heating and cooling electricity use by an average of 57% with advanced energy-efficiency controls, according to a year-long trial of the controls at malls, grocery stores and other buildings across the United States. Researchers at Pacific Northwest National Laboratory (PNNL) found that commercial buildings could substantially cut their power bills if they retrofitted their packaged rooftop heating, ventilation and air-conditioning units. "We've long known that heating and cooling are among the biggest energy consumers in buildings, largely because most buildings don't use sophisticated controls," said lead researcher Srinivas Katipamula, Ph.D., Fellow ASHRAE. "But our tests of controls installed at real, working commercial buildings clearly demonstrate how much more energy efficient air-conditioning systems can be." Conventional packaged systems use about 2,600 trillion Btus of energy annually.

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New Indian Government Plans Solar Power in Every Home By 2019
NEW DELHI—India’s new government plans to harness solar power to enable every home to run at least one light bulb by 2019, a party official said. “We look upon solar as having the potential to completely transform the way we look at the energy space,” said Narendra Taneja, convener of the energy division for the Bharatiya Janata Party, which won control of India's government in a landmark May 16 election. About 400 million people in India lack access to electricity. The five-year goal will require the cooperation of state-level administrations with which the central government shares control over the power industry, Taneja said. If successful, solar panels could allow every home to have enough power to run two bulbs, a solar cooker and a television, he said.

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Scientists Find New Way to Harvest Waste Heat
PALO ALTO, Calif.—Researchers at Stanford University and the Massachusetts Institute of Technology (MIT) have found a new alternative for low-temperature waste-heat conversion into electricity—that is, in cases where temperature differences are less than 100°C (180°F). The system is based on the principle known as the "thermogalvanic effect," which states that the voltage of a rechargeable battery is dependent on temperature. First, an uncharged battery is heated by waste heat. While the battery is still warm, a voltage is applied. Once fully charged, the battery is allowed to cool. Because of the thermogalvanic effect, the voltage increases as the temperature decreases. When the battery has cooled, it actually delivers more electricity than was used to charge it. The study is published in the May 21 issue of the journal Nature Communications.

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AHRI Petitions for Review of DOE Commercial Refrigeration Rule
ARLINGTON, Va.—The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has filed a petition for review in the U.S. Court of Appeals for the Seventh Circuit against the U.S. Department of Energy (DOE) in response to its final rule issued on March 28, regarding energy conservation standards for commercial refrigeration equipment. The rule, which updates standards set by DOE in 2009, includes maximum daily energy consumption values as a function of either refrigerated volume or total display area for various equipment classes. "[AHRI has a] history of collaborating with government agencies on energy-efficiency standards that are economically justified and technologically feasible, that benefit consumers, and that adequately take into account potential negative economic impact," said AHRI President and CEO Stephen Yurek. "DOE’s final rule on commercial refrigeration equipment does not meet these criteria, and as a result we have no choice but to challenge the rule in court."

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Broken AC Threatening Priceless Art at Rome Gallery
ROME—Concerns have been raised about the preservation of one of the world's finest art collections after it emerged that a cash-strapped museum in Rome had resorted to opening its windows to reduce humidity. Home to masterpieces by Titian, Raphael and Rubens, the Borghese Gallery has been without air conditioning in one section for two months due to a funding slowdown. While most of the world's most prized art is increasingly housed in climate-controlled rooms to minimize humidity and pollution, guards at the Borghese are opening windows to try to lower the temperature. However, this brings humidity and pollution from Rome's busy streets into the 17th century building.

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In other news...

Radiant Professionals Alliance to Hold Annual Meeting in Conjunction With 2015 AHR Expo
AAF International Opens New Cleanroom for HEPA Filter Manufacturing at Missouri Facility
UK 'F Gas' Refrigeration Regulations Become Law
EPA Makes Grants to Six Universities to Research Cleaner Cookstoves
Federal Judge Orders AC Installed at Louisiana Prison's Death Row
Outdoor Water Containers, Rising Temps in UK Increasing Malaria Risk


ASHRAE News

ASHRAE Guideline on HVAC Equipment for Rail Passenger Vehicles Open for Comment
The unique challenges required for HVAC design in rail passenger vehicles are being addressed in a proposed guideline from ASHRAE now open for public comment. Guideline 23P, Guideline for the Design and Application of HVAC Equipment for Rail Passenger Vehicles, is open for public comment until June 30. The proposed guideline establishes recommended design and application guidelines to provide an acceptable level of performance and safety for HVAC equipment used on rail passenger vehicles.

Click here
to read ASHRAE's news release.
Click here
to begin the review process and to access the public review draft of proposed Guideline 23P.

Feature of the Week

Ventilating Façades
By Ray Sinclair, Ph.D., Member ASHRAE; Duncan Phillips, Ph.D., P.E., Associate Member ASHRAE; and Vadim Mezhibovski, Ph.D.
According to the authors, optimal energy savings requires an appropriate balance of opaque walls and glazing. A double skin façade (DSF) is one means to manage the interaction between the outdoors and the internal spaces. This article presents examples of how different operating practices (e.g., flow rates), or design decisions (glazing choices) can affect the ultimate performance of the DSF.


This article originally was published in April 2009. Click here to download the article. It will be available here through June 12.

After June 12, 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

Duct Heaters From Greenheck
SCHOFIELD, Wis.—Greenheck introduces two models of duct heaters for space heating, primary, secondary, and auxiliary heating and reheating applications. Model IDHB is configurable for most applications in sizes up to 36 in. × 36 in. (914 mm × 914 mm). Model IDHC is customizable with enhanced features and a maximum heating capacity of 475 kW. Both models feature 50 Hz or 60 Hz design, fan interlock, a power terminal block, a control board, grounding lugs, an automatic limit switch for primary over-temperature protection, and a manual reset limit switch for secondary over-temperature protection.

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Motors From Baldor Electric
FORT SMITH, Ark.—Baldor Electric announces the Super-E line of motors, which features the Baldor Shaft Grounding Brush. Models include totally enclosed fan cooled (TEFC) or open drip proof (ODP) foot-mounted designs in capacities from 1 to 50 horsepower, as well as TEFC, C-Face foot-mounted designs in 0.5 to 5 horsepower varieties. The new motor is designed with a carbon brush mounted internally to divert shaft currents away from motor bearings, thus increasing the life of the bearings.

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Modular Cooling Towers From Tower Tech
OKLAHOMA CITY—Tower Tech modular cooling towers are designed to provide energy savings, redundancy and operating flexibility. The preassembled towers feature heavy-duty, non-corrosive construction, seismic certification and anchorage preapprovals. Models are available in capacities from 1,000 to 100,000 tons (3.5 to 352,000 kW).

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