Photo by Kenneth De Buck courtesy of Stock.xchng®

It’s been seven years since the AHR Expo last visited Dallas.

Attendees and exhibitors will get a chance to see how the city and HVAC market has changed since then when the show arrives Jan. 29-31.

More than 350,000 square feet of trade show exhibit space - the entire Dallas Convention Center - has been reserved for the 2007 expo. In 2000, the last time the expo visited Dallas, more than 45,000 exhibitors and attendees packed the center for that event - a number show organizers, the International Exposition Co., are hoping to beat in 2007.

“This enthusiastic response from previous exhibitors and active interest from new companies supports the fact that AHR Expo is indeed the HVACR industry’s leading world event,” said Clay Stevens, exposition company president.

One change attendees or exhibitors at the 2007 show may notice is an increased focus on environmental or “green” building. It reflects the interests of today’s industry professionals, organizers said. An online survey revealed energy efficiency and green building, along with automation, were the subjects likely attendees are most curious about.

“Given the high cost of fuel and the ongoing desire for more healthy living environments, there is a critical need to learn more about the products, technologies and trends that can help achieve greater energy efficiency,” Stevens said.

The U.S. Green Building Council, which created the Leadership in Energy and Environmental Design building-rating program, will sponsor several sessions.

ASHRAE sessions

As has long been the case, the American Society of Heating, Refrigerating and Air-conditioning Engineers will hold its winter meeting before and during the event. Many of its technical discussions will take place at the Adams Mark Hotel. Here’s a look at some of the many ASHRAE-sponsored sessions planned during the event.

At 7:45 a.m. Jan. 28, these sessions are scheduled.
  • “Numerical Modeling of Noise and Vibration in HVAC Systems.” Trane Co.’s William B. Rockwood will lead this discussion on using computer modeling to determine sound and vibration levels. Alternative methods will also be discussed.
  • “New Energy Efficiency Tools for Sustainable Building Design.” This session will explore the new technology of combined heat-and-power systems. Recycled power and chilled water will be among the topics discussed. Richard Sweetser of Exergy Partners Corp. in Herndon, Va., will lead the talk.
  • “Ventilation and IAQ in Apartment Buildings” will be led by Steven J. Emmerich from the National Institute of Standards and Technology. There are more than 7 million multifamily dwellings in America, yet ASHRAE officials say air quality in them has not been well studied. Although the society has standards for them, guidelines are minimal. Recent studies on controlling drifting tobacco smoke and other ventilation problems will be showcased.
  • At 10:45 a.m. Jan. 28, “How Low Can You Go? Low-Energy Buildings Through Integrated Design” is scheduled. The U.S. Department of Energy’s Drury B. Crawley will lead this discussion on the effectiveness of “green” buildings. Designs, performance, measurements and technology will be among the topics.
  • At 3:15 p.m. the same day, “Seasonal Energy Efficiency Rating Issues” will discuss the new technology and government-imposed performance standards. A talk on product limitations and performance predictions will be led by Carl F. Huber, P.E., of WaterFurnace International Inc.
  • At 7:45 a.m. Jan. 29 will be part one of “Learning from History: It’s All Been Done Before.” This session, led by Wallace L. Donley, will demonstrate that problems with humidity and airflow aren’t new. In fact, they go back to ancient times. Learn how the Romans dealt with heating and cooling issues.

Photo by Kenneth De Buck. Courtesy of Stock.xchng®

Part two will follow at 9:30 a.m.
  • ASHRAE’s sometimes-controversial Standard 62 will be the topic of “The Future of Standard 62.1?” at 7:45 a.m. Jan. 29. The rule, which deals with indoor air quality, has been the subject of much scrutiny from anti-smoking activists and others in recent years. This off-the-record discussion will allow attendees to discuss their problems with the standard and offer suggestions. Richard D. Hermans, P.E., of the Minneapolis-based Center for Energy and Environment will moderate.
  • Air quality will also be a major focus of “Environmental Health: Particulate Matter Sources, Health Effects and Control Strategies,” at 7:45 a.m. Jan. 30. Wane A. Baker, P.E., of Michaels Engineering in La Crosse, Wis., will lead the talk. Research has given occasionally conflicting answers on the health effects of some indoor particulate matter. This session will explain the latest research on this type of pollution and what purification systems can do, if anything, to improve the situation.
  • At 10:45 a.m. Jan. 30, “Case Studies of HEPA Filter Design and Installation Challenges,” will cover the use of high-efficiency particulate air filters in industrial settings. Engineering problems typically encountered will be profiled. U.S. Energy Department employee Douglass S. Abramson will act as chairman.

For reprints of this article, contact Jill DeVries at (248) 244-1726 or e-mail

Sidebar: Many new items to be displayed at show

For many attendees, the AHR Expo is all about products. Thousands are expected to be on display, many of them featuring the newest technology.

Here are a few of the products exhibiting companies have told Snips will be shown.

Twin City Fan and Blowerwill be showing the Model TCLB tubular centrifugal backward-inclined fan. Company officials say it combines the quiet and reliable performance of a centrifugal unit with the cost- and space-saving advantages of axial fans.

The APR-410 Control was designed byRawal Devicesto offer full-capacity modulation for all direct-expansion air-conditioning systems using R-410A. It automatically matches system capacity and output to changing load conditions. It is ideal for variable-air-volume systems where coil icing is prevalent and makeup-air systems with frequent cycling.

Steril-Aire Inc.has a new UVC kit for packaged terminal air-conditioning systems. Designed to reduce maintenance needs and improve IAQ, it provides continuous coil cleaning through its UVC Emitter. Better airflow, temperature and humidity control is also possible, officials say.

InTec Controls Inc.will show its Model No. 24 VAC/DC non-spring-return actuator at its booth. The unit can be directly mounted on air dampers for fast rotation. Three speeds are available, with position display, signal-input selection and feedback.

Higher-capacity LTS Series infrared gas tube heaters, 19 different straight-tube heaters and other models fromSpace-Raywill be displayed. Ranging from 40,000 to 250,000 Btu, they are ideal for indoor and outdoor uses, such as warehouses, industrial plants and restaurant patios. The company’s line of low-intensity heaters will also be shown.

Pressure-measurement device makerSetra Systemswill show the Model No. 260 low-differential pressure transducer. With selectable pressure, it includes analog outputs, an LCD screen and AC/DC voltage operation. The unit can be reconfigured easily, with separate slide switches for range selection, analog output and directional ranges.

Fenwal Control’sSeries No. 35-63 VAC intermittent pilot gas-ignition controls offer precise, repeatable timing sequences, local or remote flame sensing and open or cased mounting.

Patterson Pump Co.’sPro-Max horizontal, split-case HVAC pumps have a high-efficiency design to minimize energy consumption. And when it needs to be serviced, technicians can easily access it without disturbing piping connections. Precision-made, they minimize vibration and improve bearing life.