CFC-HCFC Management (Keith Bailey) - SFI Environmental Login

fortnecessityusefulDéveloppement de logiciels

14 déc. 2013 (il y a 3 années et 5 mois)

100 vue(s)

CFC/HCFC MANAGEMENT

Training Conference 2013


Chicago, IL

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Training Conference 2013


Chicago, IL

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CFC/HCFC MANAGEMENT



Introduction to CFC/HCFC


CFCs


HCFCs


Regulatory Requirements


Leak Rate Calculation


Leak Repair


Leak Verification Tests


Recordkeeping/Reporting


Your Responsibilities


Where To Get More Information


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A class of synthetic chemicals that are
odorless, non
-
toxic, non
-
flammable,
chemically inert, and stable thermodynamic
properties


Class I Refrigerants


First CFC synthesized in 1892, first used in
1930s.

What Are CFCs?

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Where Are CFCs/HCFCs Used?


Propellants in aerosol cans


Coolant in Refrigerators and Air Conditioners


Degreasing Agents


In the Manufacturing of Foam Packaging


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Problem With CFCs


Cause destruction of the ozone layer by drifting
to the stratosphere, in the presence of UV
radiation, reacts with ozone to form free
chlorine atoms and molecular oxygen.


The chlorine liberated during ozone breakdown
destroys even more ozone.



CFCs can remain in the atmosphere for more
than 100 years.


In 1984, conclusive evidence of stratospheric
ozone destruction.


In 1987, the Montreal Protocol Established


global environmental treaty to ban the use of
chemicals responsible for damage to the ozone
layer.


January 1, 1996, new CFC production ended.


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What Are HCFCs?


Hydrochlorofluorocarbons

(HCFCs) are interim
replacement compounds for CFCs
-

Class II
Refrigerants


HCFCs still contain chlorine atoms, but the
presence of hydrogen makes them reactive to
chemicals in the troposphere, so chlorine does
not reach the stratosphere.


Production of HCFCs will most likely be phased
-
out by 2030 in the USA, by 2015 in Europe.


DuPont stopped producing HCFC
-
22 for new
equipment in 2005.


Hydrofluorocarbons

(HFCs)
-

no chlorine,
replacement for HCFCs, but big greenhouse
gas emitter.


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CFC’s


BAD, bad, BADDDD
really Bad


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CFC/HCFC Requirements


40 CFR 82, Subpart F
-

maximize recycling of
ozone
-
depleting compounds (CFCs and
HCFCs) during the service and disposal of air
conditioning and refrigeration equipment


Certification requirements for recycling and
recovery equipment, technicians, and
reclaimers
.



Restricts sales to certified technicians.


Requires repair of substantial leaks in equipment
with charge greater than
50 lbs
.


Establishes safe disposal requirements.

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Leak Rate Calculation


The leak rate must be calculated each time
a leak is discovered.


LEAK RATE % = ((lbs refrigerant added / lbs
refrigerant in normal full charge) x


(365/# days since refrigerant last added)) x
100



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Leak Repair


For equipment >50 lb charge, if the leak rate
exceeds 35% of total charge in a 12 month
period, then the leak must be repaired
within 30 days following discovery, unless:


an industrial process shutdown is required in
order for the repair to be completed. In this
circumstance, the regulations allow the repair to
be completed within 120 days.

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Leak Repair Verification Tests


Initial and follow
-
up verification tests must be
conducted and documented for each
repair. The initial test must be conducted
immediately following the repair, before
refrigerant is added to the equipment.



The follow
-
up verification test must be
completed within 30 days following the
repair, or, if the equipment was taken out of
service, within 30 days of bringing the
equipment back on
-
line.

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Leak Repair Verification Tests


Soap Bubble Test;


Electronic Leak Detectors;


Ultrasonic Leak Detectors;


Pressure Test;


Vacuum Test;


Fluorescent Dye and Black Light Test;


Infrared Test; or


Halon

Refrigerant Gas Detection.


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Recordkeeping


Persons servicing, owning or operating industrial
process refrigeration equipment containing
over 50 pounds of regulated CFC/HCFC
refrigerant must maintain records for:


(a) the date a leak is discovered;


(b) the date a leak is repaired and/or the
equipment is serviced (including a description
of the repair or service work);


(c) the date and quantity of refrigerant added
or removed;


(d) the date, type and results of the initial
verification test; and


(e) the date, type and results of the follow
-
up
verification test
.


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Reporting


If you fail a follow
-
up verification test, you must
notify EPA within 30 days of this failed test.



The notification must include the dates and types of
all initial and follow
-
up verification tests performed
and all associated test results.


Reference: 40 CFR 82.156(
i
)(3)(iii)



Also, if you must report to EPA if you fail to complete
repairs within 30 days of the leak


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Key Points


Any equipment containing more than 50
pounds of CFC/HCFC refrigerant are
covered by this regulation.



Cannot exceed release amounts equivalent
to 35% of system volume in the last 365 days.



If you do, you have 30 days to fix the cause
of the release (process shutdown
-

120
days), and must conduct initial and follow
-
up leak verification tests.

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Your Responsibilities


Implement a tracking mechanism such as
an Excel spreadsheet that calculates the
rolling release totals.




Maintain copies of certifications on
-
site for
technicians servicing your CFC/HCFC
containing equipment.



Must retain records of leaks/releases.


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More Information


40 CFR 82, Subpart F



http://www.epa.gov/ozone



http://www.sfienvironmental.com/

Follow
link to BMPs for leak calculator



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