District Heating & Cooling

1st Quarter 1993 | Volume 78 Number 3

On the Cover

An ammonia refrigeration evaporator chills a frozen-food warehouse to -20 degrees F.

Ammonia as a Refrigerant: Positioned for Growth, Promoting Safety (p18)

Computerized, Remotely Monitoried Water Treatment System Operates Smoothly for new District Cooling Facility (p5)

William Tracy, Vice President of Operations, Mid-America Energy Resources, Inc.; Richard Mulcahy, Associate, WW Engineering & Science, Inc.; John Haaland, Product Manager, Drew Industrial Division, Ashland Chemical, Inc.; Terry Crown, Executive Account Manager, Drew Industrial Division, Ashland Chemical, Inc.

Computer Programs Open Door to Comprehensive Energy Planning (p10)

Model Urban CO2 Reduction Plan Takes Shape: A Project Update (p15)

Special Feature: Preview of the 84th Annual Conference in Harrisburg, Pennsylvania (p29)