I once had an employer who always said there were no problems, only challenges. You might say that this month’s issue of Process Cooling follows that same optimistic and motivational approach. This month’s authors provide you with solutions and guidance for more than one cooling process challenge.
No. 1: Debris in Cooling Towers.Water-cooling towers often use
fixed-sump screens to protect circulation pumps and downstream exchangers from
leaves, pollen, dirt and any number of other contaminants, yet debris continues
to vex maintenance personnel by causing pump failure and loss of heat exchanger
efficiency. Traveling sump screens may be the solution, according to “A
Traveling Solution to Cooling Tower Debris” by Michael D. Moreaux, vice
president of Industrial Cooling Tower Services Inc., Baton Rouge, La.
No. 2: Moisture Damage to Insulation.Water is the most
notorious enemy of any insulation system. For example, just four percent
moisture in a below-ambient environment can reduce the insulation’s thermal
efficiency by 70 percent and cause other difficulties that interfere with a
smooth-running process. In “8 Tips for Choosing the Right Insulation,” sales
manager Michael J. Irlbacher Jr., at Extol of Ohio Inc., Norwalk, Ohio, tells
readers how to evaluate and choose an insulation system.
No. 3: Saving Energy but Losing Control.Cutting back on energy
consumption is virtually every business’s concern, both for the environment and
the bottom line. But two managers in Italy know that some operations such as
food processing cannot be compromised in the effort.
Calcagni, marketing manager at Ascon SpA in Baranzate, and Gianni Lenoci,
R&D manager for Otiz srl in Bari, note in “Improved Control for
High-Efficiency Cooling” that manufacturers of food storage refrigeration
equipment have developed solutions that combine energy savings with the ability
to obtain the highest quality products.
No. 4: Moving Large Amounts of Air.Oversized ceiling fans are
relatively energy efficient, move large volumes of air, and are effective in
some work environments for comfort and space cooling. However, Jim Whittle,
director of marketing at Patterson Fan, Blythewood, S.C., explains in “Hybrid Equipment
Cooling,” that these fans may not meet the stringent demands of equipment and
process cooling. For those, a hybrid fan that incorporates a “gill” might
provide a better solution.
Challenge No. 5:
Pipe Corrosion in Ammonia Systems.Jim Young, an application
technology leader for at Dow Chemical Co., Midland, Mich., looks at insulation
for ammonia refrigeration systems. In “High-Performance Insulation for Ammonia
Refrigeration, he explains how to protect the cold surfaces inherent in ammonia
refrigeration systems, which will naturally attract water vapor from the warmer
and moister surroundings, before they lead to corrosion.
No. 6: Condensation in Food Processing Rooms.Just about all
food processors are familiar with the risk and food safety dangers associated
with having moisture droplets form over products that are being processed for
human consumption. It’s essential to prevent this condensation. In “Controlling
Condensation,” sales manager Kevin Smith at Concepts and Designs Inc., Wixom,
Mich., presents the basics needed to understand why condensation occurs in food
processing rooms and describes different control technologies.
No. 7: Getting What You Pay For. According to Phil Gatto in “Reliable
Refrigeration,” budget-priced chillers need to be looked at carefully. The
sales and marketing director at Standard Refrigeration in Melrose, Ill., says
that the evaporator is a crucial component of any industrial refrigeration
system. A low-price chiller system sometimes ends up costing substantially more
over its life in operating and maintenance costs. Gatto describes three key
areas to evaluate: efficiency, durability and serviceability.
Your Winning Outcome
May 2, 2007