Steam and Condensate Piping Systems TEAM UP FOR ENERGY SAVINGS

Steam and Condensate Piping Systems TEAM UP FOR ENERGY SAVINGS
TEAM UP FOR ENERGY SAVINGS
Steam and Condensate Piping Systems
Saving the environment and saving money can be as easy
as fixing a leaky steam pipe fitting. That means you’re on
the front line for energy-saving opportunities. Team up with
co-workers to spot ways to reduce the energy your steam
and condensate systems use – it’s good for the environment
and good for your bottom line.
2. Low-cost opportunities
Full steam ahead for energy savings
VV Remove redundant steam and condensate piping.
Check out your steam and condensate piping systems.
Valuable energy is lost through steam leaks, faulty steam traps
and poorly insulated pipes. To conserve energy and cut costs,
consider three main areas:
1. Housekeeping
VV Overhaul pressure-reducing stations. Reduce steam
pressure where possible.
VV Insulate pipes, flanges, fittings and equipment. A threemetre length of uninsulated 10-centimetre steam pipe,
for example, will cost more than twice as much in steam
per year than it would to insulate.
VV Re-pipe systems or move equipment to shorten pipe
lengths to minimize heat loss and steam leaks.
VV Repair, replace or add air vents.
VV Optimize the location of condensate conductivity sensors.
VV Set up a steam trap maintenance program, including
procedures.
3. Retrofits
VV Regularly inspect and maintain steam traps.
VV Eliminate or minimize steam use where possible.
VV Fix steam and condensate leaks.
VV Replace old steam traps or ones that are the wrong
size or type.
VV Ensure good steam quality by maintaining chemical
water treatment.
VV Repair damaged pipe insulation.
VV Shut down equipment when not needed.
VV Shut down steam and condensate branch systems when
not needed.
VV Upgrade insulation.
VV Optimize pipe sizes. Oversized pipes lead to higher
surface heat loss, while undersized pipes need higher
pressure and extra pumping energy and cause
more leaks.
VV Depressurize condensate.
VV Recover heat from condensate.
VV Install a closed-loop pressurized condensate return.
VV Measure steam and condensate flows
with a meter.
Evaluate your steam and condensate
systems
1. Is there any unused or redundant piping?
K Yes
K No
Check monthly.
Find the moisture source and fix it. For example,
if the pipe is leaking, repair it.
K Yes
Isolate the piping from the rest of the system,
then remove it.
Done by: ______________________________________
K No
No action required.
Date: _________________________________________
Done by: ______________________________________
Date: _________________________________________
2. Does the steam and condensate system use the
best piping size? Is steam generated close to where
it is used?
K Yes
K No
Recycled paper Cat. No. M144-137/2-2007E-PDF ISBN 978-0-662-45223-2 © Her Majesty the Queen in Right of Canada, 2007
5. Is the insulation dry?
No action required.
Have a qualified contractor redesign the system
to optimize it. Move steam-generating or steamusing equipment closer to each other. If that is
not possible, consider non-steam equipment.
Done by: ______________________________________
Date: _________________________________________
3. Can you see or hear any steam leaks?
K Yes
K No
Repair leaks as soon as possible.
Recheck monthly, using ultrasonic detectors,
listening rods, pyrometers or stethoscopes. Have
a qualified contractor or representative from the
manufacturer of your steam traps and valves
check for leaks.
Done by: ______________________________________
6. Is the insulation (including the vapour barriers and
weatherproof jackets) intact?
K Yes
K No
Check monthly.
Replace damaged material.
Done by: ______________________________________
Date: _________________________________________
7. Are the measured steam and condensate flows equal?
K Yes
K No
No action is required.
Inspect the condensate piping for leaks.
Done by: ______________________________________
Date: _________________________________________
8. Is the insulation thick enough? (Insulation should be
cool enough to touch.)
K Yes
K No
No action required.
Add more insulation or evaluate the economics
of replacing the insulation with another type.
Done by: ______________________________________
Date: _________________________________________
Date: _________________________________________
4. Are steam pipes insulated?
K Yes
Regularly inspect and replace damaged
insulation. Add more insulation if it is not cool
enough to touch.
K No
Insulate pipes as soon as possible.
Done by: ______________________________________
Date: _________________________________________
FOR MORE INFORMATION on these and other energy-saving
opportunities, see Natural Resources Canada’s Energy
Efficiency Planning and Management Guide at:
oee.nrcan.gc.ca/publications/infosource/pub/cipec/efficiency.
Natural Resources Canada’s Office of Energy Efficiency
Leading Canadians to Energy Efficiency at Home, at Work and on the Road
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