When the new 264,000-square-foot Barberton High School opened in the fall of 2000, it had something to boast about: one of the largest geothermal heating, ventilation and air-conditioning (HVAC) systems in the state of Ohio.Installing an HVAC system that would outlive a traditional system of boilers, chillers and rooftop units was the idea of Fred Fries, the school's business manager.
If power companies around the world are still offering customer incentives to reduce peak demand, when it comes to larger chilled-water cooling systems, why are so many mechanical engineers ignoring the money-saving advantages and other significant benefits of chilled-water storage (CWS)? Often, new facilities that seem particularly suitable for CWS are being designed to employ conventional, nonstorage cooling systems. Admittedly, there aren’t that many papers available documenting the reputed savings, but many happy owners using thermal-energy storage (TES) know that, as compared to their previous cooling systems, they: Moreover, when adapted properly to the circumstances, CWS also offers competitive front-end and life-cycle costs. Put together, that’s a pretty hot case for CWS and TES. Favorable off-peak, load-leveling power rates that lead to significant operating economies are the advantage most often cited for TES.
Should large facilities under one roof have central or distributed heating, ventilation and air-conditioning HVAC systems? While a topic unto itself, two contrasting examples illustrate the range of approaches.
Before teachers at Osceala County School District in Kissimmee, Fla., get into their cars to drive to school in the morning, they now have the capability to log on to the Internet and adjust the temperature in their classroom, thanks to a new LonWorks building automation system.
In response to a number of tragic campus fires that occurred this past year, the state of New Jersey has become the latest to adopt legislation mandating and supporting the installation of sprinkler systems in college housing facilities.Similar to recent initiatives in Chapel Hill, N.C., Durham, N.C., Boulder, Colo. and Lawrence, Kan.
The development of raised-floor systems for commercial office environments has led to the creation of new systems for delivering conditioned air, power, data and telecommunications infrastructure. Their use has hardly been limited to office buildings, however. The use of one such system for the interim Student Services Center at San Jose State University, San Jose, Calif.
Energy consumption and overall building efficiency have always been high priorities for building owners, but with rising energy costs and utility deregulation, these concerns have a renewed importance. These developments are creating a plethora of opportunities, as well as pitfalls, with respect to purchasing power.
The best moments in consulting are when clients need to solve seemingly intractable problems, and the consultant can offer creative ideas and approaches that—more than simply overcoming the challenge—create a project of superior value and performance. Such an opportunity arose at the new Student Services Building at San José State University (SJSU), San José, Calif.
A panel of noted plumbing engineers and designers discuss major issues in commercial plumbing: code revisions, compliance with the Americans with Disabilities Act (ADA), toilet parity and low-flush technology. Finally, they define what they feel are the major issues in commercial plumbing today in this month's M/E Roundtable.
Using the basic design concepts employed at Harley-Davidson University (see page 28), an enhanced version was developed for the Alliant Energy World Headquarters located in Madison, Wisconsin. This 320,000-square-foot building currently under construction is a working model for the efficient energy-management policy of this utility company.