Canadian Consulting Engineer

Contents – March/April 2013 Volume 54, No. 2

March 1, 2013
By Canadian Consulting Engineer



Community Power: the Advent of District Energy Systems. Denser urban plans create ideal opportunities for centralized heating and cooling networks.By Ken Church, P.Eng., Natural Resources Canada 18

Pipe Dreams, Markham Realities. District energy success in a city north of Toronto.By John G. Smith 22

Ammonia vs CO2. A comparison of two natural refrigeration systems for ice arenas.By Mathieu Courchesne, ing., Dessau 24

Smoke Management in Large Venues. Dealing with the complex issues requires NFPA 101. By Jonathan Rubes, P.Eng., Rubes Code Consultants 30

Proposal Writing: Choose Your Battles. Is the laborious effort of writing proposals always worth it? Advice to help you decide. By Tara Landes, Bellrock 34

After a Tornado. A devastated Sifto salt evaporator plant in Goderich, Ontario is quickly rebuilt. By Alan Greer, CET, Ausenco 36

A Heady Pace: Toronto’s 2015 Pan/Parapan American Games. A snapshot of three venues under construction. By Bronwen Parsons 38



Mining Sector Opportunities.  Smaller firms don’t need to be left out.
By Chad Eggerman,  Miller Thomson LLP 41


Shock Wave. The head of AICQ reflects on evidence at the Charbonneau Inquiry. By Johanne
Desrochers 46


Comment 4

Up Front 6

ACEC Review 13

Advertiser Index 45


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