1. Report of the TEAP XXI/9 Task Force
Lambert Kuijpers
Miguel Quintero
Dan Verdonik
Shiqiu Zhang
TF Co-chairs
TEAP members
UNEP OEWG-30
Decision XXI/9
Geneva
15 June 2010

2. Decision XXI/9 Taken at MOP-21
1. To request the Technology and Economic Assessment Panel (TEAP), in its May 2010 Progress Report and subsequently in its 2010 full assessment, to provide the latest technical and economic assessment of available and emerging alternatives and substitutes to HCFCs; and the Scientific Assessment Panel (SAP) in its 2010 assessment to assess, using a comprehensive methodology, the impact of alternatives to HCFCs on the environment, including on the climate; and both the SAP and the TEAP to integrate the findings in their assessments into a synthesis report;
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

3. Decision XXI/9 Paragraph 2
To request the Technology and Economic Assessment Panel
(2a) To list all sub-sectors using HCFCs, with concrete examples of technologies where low-GWP alternatives are used, indicating what substances are used, conditions of application, their costs, relative energy efficiency of the applications and, to the extent possible, available markets and percentage share in those markets, to compare these alternatives with other existing technologies, in particular, high-GWP technologies that are in use in the same sectors;
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UNEP OEWG-30 - TF Decision XXI/9

4. Decision XXI/9 Paragraph 2
(2b) To identify and characterize the implemented measures for ensuring safe application of low-GWP alternative technologies and products as well as barriers to their phase-in, in the different sub-sectors, collecting concrete information from various sources;
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UNEP OEWG-30 - TF Decision XXI/9

5. Decision XXI/9 Paragraph 2
(2c) To provide a categorization and reorganization of the information previously provided in accordance with decision XX/8 as appropriate, to inform the Parties of the uses for which low- or no-GWP and/or other suitable technologies are or will soon be commercialized, including to the extent possible the predicted amount of high-GWP alternatives to ozone-depleting substances uses that can potentially be replaced.
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

6. UNEP OEWG-30 - TF Decision XXI/9
Process
TEAP established a Task Force to update data contained in the XX/8 report and to report on the other issues requested in paragraph 2 of XXI/9
Task Force was co-chaired by TEAP members Kuijpers, Verdonik, Quintero and Zhang
12 Chapter Lead Authors and 27 Reviewing Authors participated
TEAP review took place in April 2010 (Madrid), was followed by a final TF review and agreement by consensus
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

7. Kyoto Protocol and GWPs
The Kyoto Protocol uses GWP values as specified in the Second IPCC Assessment Report (SAR) and has not considered later IPCC revisions of GWP values
Values are based on a 100 year time horizon
GWPs of very short lived substances are not addressed in the latest IPCC AR4; important issue is that local effects dominate over global total mixing
The Kyoto Protocol has never defined “high-GWP” and “low-GWP”; they are comparative in nature
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8. Classification on a GWP Scale
The TEAP proposes the following classification:
LOW GWP: < 300
GWP < ultra low
GWP < very low
MODERATE GWP: 300-1,000
HIGH GWP: > 1,000
GWP > 3, very high
GWP > 10, ultra high
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UNEP OEWG-30 - TF Decision XXI/9

9. Toxicity and Flammability
High or Moderate GWP substances or mixtures may be required when Low GWP toxic or flammable substances cannot be applied in certain types of products, or under certain circumstances
New Low GWP substances are under development
Future development changes in equipment design will be determining which chemicals can be selected
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UNEP OEWG-30 - TF Decision XXI/9

10. UNEP OEWG-30 - TF Decision XXI/9
Methods and Metrics
Ultimate choice of technology to phase out HCFCs will be based on ozone depletion and on climate, health, safety, affordability and availability aspects (XIX/6)
Choosing the lowest GWP substance will not always be the best selection (energy use in manufacturing and during operation is also important)
Life-Cycle Climate Performance (LCCP) is the most comprehensive method
LCCP models need more development to be transparent and adaptable to local ambient conditions
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

11. Domestic refrigerators and freezers
About 63% of new refrigerators employ HFC-134a
About 36% employ hydrocarbons, mainly HC-600a (isobutane)
It is predicted that, within 10 years, under business-as-usual, at least 75% of all new production will apply hydrocarbons; required changes in standards are underway and regulations could ease transition
No identified technology can compete for cost or efficiency with conventional vapour compression technology for mass production
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

12. Commercial Refrigeration
Commercial refrigeration includes three different categories of systems: stand-alone equipment, condensing units, and supermarket centralised systems
The populations of vending machines, stand-alone equipment, and condensing units are about 20, 32 and 34 million units, respectively
Solutions to replace HCFC-22 depend on the specific applications in each category
The majority of stand-alone equipment based on HFC-134a technology; energy efficiency HCs is comparable
15 June 2010
14 July 2009
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13. Commercial Refrigeration (2)
Condensing units have as the dominant HCFC-22 replacements HFC-134a and R-404A; it is a cost driven market; HCs, ammonia and carbon dioxide tested and installed in a number of supermarkets
Centralised systems are using indirect systems; the HCFC-22 replacements are R-404A, HFC-134a, ammonia, HCs, carbon dioxide and low-GWP HFCs blended with HFC-32
Important current trend consists of cascading systems with HFC-134a in the high temperature and carbon dioxide in the low temperature loop
15 June 2010
14 July 2009
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14. Transport refrigeration
Majority of equipment utilises high-GWP HFCs
HCFC-22 is used mainly in aging vessels and road transport in developing countries
Development of systems with low-GWP chemicals is underway but faces technical challenges because of robustness, low weight, corrosion resistance and safety requirements
The most promising low-GWP substances are hydrocarbons and carbon dioxide
15 June 2010
14 July 2009
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15. Large Size Refrigeration
Ammonia has been used as THE refrigerant for a long time, with significant regional variations
In applications where the toxicity of ammonia is unacceptable, carbon dioxide has been an alternative
HCFC-22 “drop-ins” have not been commercialised
High-GWP HFCs are not widely used in large size refrigeration systems; if adopted then they have been used in low charge systems
It is unlikely that the low-GWP HFCs developed for other applications will be used in this sector
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

16. UNEP OEWG-30 - TF Decision XXI/9
Unitary AC
Nearly all air cooled AC used HCFC-22 before 2000, and the transition is complete or well underway in developed countries
In developed countries, high-GWP HFCs have been the dominant replacements, with R-410A the most widely used (with R-407C in certain regions); hydrocarbons are applied in low charge applications
In developing countries, short term replacements will be R-407C and R-410A, with hydrocarbons for lower charge applications
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

17. UNEP OEWG-30 - TF Decision XXI/9
Unitary AC
HFC-32 is a lower GWP alternative for HCFC-22 than R-410 A (one third of the GWP)
As experience with flammability increases, HFC-32 is likely to become the future HCFC-22 substitute, rather than R-410A
Usage of hydrocarbons is expected to increase
Low-GWP HFCs might become replacements for the high-GWP HFC blends; however, lower vapour density will impact equipment dimensions and costs
Carbon dioxide will increase in use for lower ambient temperatures
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

18. UNEP OEWG-30 - TF Decision XXI/9
Chillers
Centrifugals employ HFC-134a and HCFC-123 (very low GWP); at this time it is not known whether low-GWP options (such as low-GWP HFCs, e.g. HFC-1234yf) will be found suitable for chillers
Ammonia chillers are more common in the smaller sizes with different compressor types; there are HCs in a limited number of chiller applications; safety concerns are largely overcome in certain regions
Carbon dioxide is an alternative for chillers that also produce hot water
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

19. UNEP OEWG-30 - TF Decision XXI/9
Chillers (2)
Hydrocarbons are used in a limited number of small air-cooled chiller installations in Europe. Safety issues are of concern particularly for indoor chiller installations. In regions where companies, governments, and the public support hydrocarbon solutions, safety concerns have been largely overcome by engineering, technician training, and changes in regulations
Water (R-718) has been applied in a few cases
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

20. Mobile Air Conditioning
HCFCs are mainly applied in bus and train AC; the alternatives are HFC-134a and carbon dioxide
The replacement of HFC-134a in passenger cars will proceed
The original HFC-134a replacement options with GWP<150 are carbon dioxide and HFC-152a; the most important current alternative is HFC-1234yf
All options have comparable energy efficiency
The emerging global car manufacturers’ apparent choice is HFC-1234yf
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

21. Foams
Foams compete with other product types in many insulation and other applications; mineral fibre continues to be the most important insulation type in most regions
Low thermal conductivity foams gain market share, which is 30-40% in most regions
In polyurethane, hydrocarbons are the main replacements for HCFC-141b and also for high-GWP HFCs
High-GWP HFC foams are more expensive than hydrocarbon foams
Many low-GWP options are emerging and being applied
15 June 2010
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22. Low GWP alternatives for PU Foams
Pros (+)
Cons (-)
Hydrocarbons
Negligible GWP
Good availability
Low operating cost
High flammability -> high conversion cost (Preblended hydrocarbons?)
Not for spray foam
Low GWP HFCs
(short lived HFCs)
Non-flammable
Availability and cost?
Limited use experience
Methyl Formate
Flammability?
Methylal
Co-blowing agent data
Limited experience as sole BA
CO2
Use as co-blowing
Alternative for spray foam
Insulation value
End-product cost
15 June 2010
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23. XPS Foams
Demand for energy saving measures is driving the growth of insulating XPS foams
In developing countries preferred blowing agents have been HCFC-22 and HCFC-142b for XPS
In one developing country, Turkey, HFC-1234ze is being used in one pilot project
In developed countries, the range of alternatives includes CO2 and hydrocarbons in Europe and Japan; the USA also applies HFCs - HFC/ CO2 mixtures
15 June 2010
14 July 2009
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24. UNEP OEWG-30 - TF Decision XXI/9
Fire Protection
For halon 1301 systems, the replacement HCFC Blend A (HCFC-22, -124, -123) has achieved very minor market share
Replacements for Blend A are dry chemicals, water or foams, CO2, inert gases and fluoroketone
For halon 1211 portable extinguishers HCFC Blend B (mixture of HCFC-123, PFC-14 and argon) has achieved limited market share; no low-GWP chemicals presently commercialised to replace Blend B
An unsaturated HBFC is currently being tested
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25. UNEP OEWG-30 - TF Decision XXI/9
Solvents
HCFC solvents are HCFC-141b and HCFC-225 ca/cb
HCFC-141b phased out in developed countries, but its use may still be increasing in developing countries
Two HFC solvents currently available are HFC-43-10mee and HFC-c447ef
For a variety of applications blends are made with HFC-43-10mee and several other chemicals;
HFC-c447ef remains in a niche use (mainly electronics);
Costs of high-GWP solvents will limit use
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

26. UNEP OEWG-30 - TF Decision XXI/9
Solvents
HCFC and HFC alternatives are NIK systems, hydrocarbons, alcohols, chlorocarbons and n-propyl bromide (n-PB)
No single option available to completely replace HCFCs and HFCs
Large scale conversion to chlorinated solvents is unlikely; conversion to n-PB is possible but with toxicity concerns
HFE-449sl and HFE-569sf2 are used as replacements for CFCs, but the relatively high cost prohibits large scale use
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9

27. UNEP OEWG-30 - TF Decision XXI/9
Inhaled therapy
Metered dose inhalers (MDIs), dry powder inhalers (DPIs) and novel delivery systems play an important role in treatment of asthma and COPD
No single delivery system universally acceptable
A range of therapeutic options is important
Based on current consumption and estimated growth rates for MDIs, HFC-134a and HFC-227ea consumption is estimated at 7,000-10,500 tonnes by 2015
Switching all MDIs to DPIs implies an emission reduction of 13 Mtonnes CO2 eq. annually
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28. UNEP OEWG-30 - TF Decision XXI/9
Conclusions
TEAP proposes a classification of GWPs as HIGH >1000, MODERATE 300 – 1000 and LOW < 300
Each Sector / Subsector has a variety of low or moderate GWP alternatives available or under development
Some Sectors / Subsectors may also have not-in-kind alternatives that are not Global Warming Substances
Parties may wish to select alternatives with the lowest Climate Impact based upon life cycle analyses, such as LCCP and not based solely on GWP, as energy use or other life cycle emissions may contribute significantly to the total carbon equivalent emissions
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29. UNEP OEWG-30 - TF Decision XXI/9
Thank you !
15 June 2010
UNEP OEWG-30 - TF Decision XXI/9