What is geothermal energy, and what are its low-carbon advantages? Why is it not more commonly used in Ontario—and how logical is it to try to use it as regularly as natural gas? These questions and more will be answered at the Ontario Geothermal Association’s (OGA’s) annual meeting next Tuesday and Wednesday, February 21 and 22.
Tall-building developments in Toronto are outpacing every other city in North America, with roughly 44 high-rises exceeding the 150-m (492-ft) mark—more than triple the 13 skyscrapers gracing the city’s skyline in 2005. The dramatic increase in office and living space pointed to epic levels of energy use, capturing the attention of Canadian legislators.
Current Canadian projects indicate energy recovery ventilators (ERVs) are not a fad, but the wave of the future. One project putting this type of HVAC technology on the ‘sustainability map’ is the Montréal-based Centre hospitalier de l’Université de Montréal (CHUM). CHUM’s 185,810-m2 (2-million-sf) expansion (pictured above) makes it one of the largest hospitals in North America.
An essential problem with data centres and other mission-critical facilities is that heat, humidity, and dust are electronics’ ‘kryptonite.’ In other words, without carefully planned measures, computer servers and high-tech hospital equipment can rapidly fail.
The National Air Filtration Association (NAFA) has announced the winners of its 2015 Clean Air Awards. The award is presented each year to building owners and managers in Canada and the United States that take the steps to significantly improve indoor air quality (IAQ) by increasing the level or efficiency of the HVAC air filtration system in 10 specific categories.
The American Society of Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) wants research papers for its second International Conference on Efficient Building Design: Materials and HVAC Equipment Technologies.
At the most basic level, a building automation system (BAS) helps reduce operating costs and equipment replacement capital costs by only running systems when they are needed. For example, facility professionals could use a BAS to raise air-conditioner set-points or turn off the system in college dorm rooms in Toronto in the spring and summer, or lower heating set points in Edmonton commercial office buildings on winter weekends.
A decade ago, designing the esthetics of an exposed ventilation system in open architectural ceiling applications began with colour, material, and dispersion method selection. The suspension or top end of the ventilation system was the least esthetic concern—it was typically the last choice, or just an after-thought in the process.