Burak Gunay is trying to improve the way our buildings work. Yet while many engineers focus on designing greener spaces, Gunay focuses on tweaking the way those spaces are maintained, with results that often reduce energy consumption by up to 60 percent.
His efforts have earned him a PhD, a Governor General’s medal and the University Medal for Outstanding Graduate Work at the Doctoral level – both to be awarded at Fall Convocation on Nov. 12 – and in January, a return to his home department of Civil and Environmental Engineering, this time as an assistant professor.
Under the supervision of professors Liam O’Brien and Ian Beausoleil-Morrison, Gunay designed a set of control algorithms that learns from the way that people interact with their thermostats and light switches.
For instance, typically lights and heat may be set to stay on in a commercial building until a particular time (say 10 p.m.), even though most people leave two hours earlier.
With temperature, often systems do not account for occupants wearing sweaters in the winter or light clothing in the summer, so users are always adjusting the thermostats. Gunay’s system learns these preferences and suggests them as the new standard.
Partnering with Vancouver-based automation company Delta Controls, Gunay implemented his sensors and algorithms on the fifth floor in the Canal Building on campus, with the sixth floor as a control.
“We compared the energy on these two floors before and after. It turns out the heating use was actually reduced by about 75 per cent, cooling by 40 per cent, and lighting by about 30 per cent” says Gunay.
Not knowing actual usage patterns causes those who maintain buildings to make very conservative assumptions about occupancy, which translates to the wasted energy.
Gunay says he is honoured by the medal he will receive, but also motivated by the potential for improving energy consumption.
“The focus today is on designing green and energy efficient buildings, but what I’m arguing is designing efficient buildings is simply not enough.”