Honeywell has developed new hydrofluoroolefin (HFO) molecules as low global warming potential refrigerants to replace high-GWP hydrofluorocarbons. HFO-1234yf has been identified as a replacement for R-134a in automotive air conditioning with a GWP of 4. HFO-1234ze is replacing R-134a in one-component foam applications and centrifugal chillers with a GWP of 6. A third molecule, code named N12, is under development for low pressure centrifugal chillers with a GWP of 7. Honeywell's Solstice portfolio includes HFO and HFO blends to replace various refrigerants like R-404A,

1. Low Global Warming Refrigerants
Development
2006 Specialty Materials Senior Leadership Meeting

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Regulatory Requirements Call for Innovation
Honeywell Committed Resources & Technology
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Low Global Warming Molecules
New Hydro-Fluoro-Olefins have been developed:
 HFO-1234yf has been identified as replacement for R134a by the
automotive industry.
 It has an atmospheric life of only 11 days (12 years for HFC-134a) and
an extremely low GWP of only 4 (1430 for R-134a).
 ASHRAE std 34 has classified HFO-1234yf as low toxicity class A. HFO-1234yf
 HFO-1234ze, is currently replacing R-134a for one-component HFO-1234ze(E)
foam applications and looks promising for centrifugal chillers.
 This molecule also has a very short atmospheric lifetime with a GWP of
6.
 ASHRAE std 34 has classified HFO-1234ze as low toxicity class A.
 Another molecule is currently under development and is code
named N12.
 Intended refrigerant application is low pressure centrifugal chillers. High
temperature Heat Pumps and ORC.
 It has a GWP of 7 and is non-flammable.
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4. Solstice family of HF
Solstice family of HFOs
2006 Specialty Materials Senior Leadership Meeting

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Honeywell’s Solstice™ Low Global Warming
Portfolio
Current HCFC / Honeywell Solstice™
HFC Products LGWP Products
365mfc
Chillers (LP) N12
Heat Transfer
Fluids N24
245fa
227ea
Chillers (MP)
134a L13
Mobile A/C
N13 / yf
Commercial
Refrigeration
22, 407C
404A Stationary N 40/20
A/C
L 20/40/41
410A
5 Broad Platform Covering Numerous Applications
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Solstice™ Blends for Stationary Applications
N Series L Series
Current Reduced GWP Option Lowest GWP Option
Product ( A1) (A2L)
R-404A HFO Blend – GWP~1300 (retrofit) N-40
HFO Blend GWP~200-300 L-40
GWP=3922 HFO Blend – GWP~1000 (new equip) N-20
HCFC-22
HFO Blend – GWP ~1000 N-20 HFO Blend GWP <150 L-20
GWP=1810
R-410A
HFO-Blend GWP <500 L-41
GWP=2088
HFC-134a HFO-1234yf GWP = 4 Solstice™ YF
HFO Blend – GWP ~600 N-13
GWP=1430 HFO-1234ze GWP = 6 L-13
R-123
HFO–GWP =7 N-12
GWP= 77
Reduced & Low GWP Replacements For Key Applications
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Overview of Fluorocarbon Refrigerant Options
Mildly Flammable “2L” Non-Flammable Refrigerants
4000
R410A
3500
L-41
Unitary Air Conditioning
Cooling Capacity
3000
L-40 N-40 Performax LT
2500
N-20 R22 R404A
L-20 Commercial Refrigeration
2000
1500 L-YF N-13 R134a Plug-ins & Large Chillers
L13
1000
500
0
0 500 1000 1500 2000 2500 3000 3500 4000
Reduced GWP GWP
GWP<150 Ultra Low GWP
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Auto Air Conditioning LGWP Refrigerant Solution
Major Milestones Environmental Performance
• HFO- 1234yf GWP of 4 vs. 1430 for 134a
Indirect
• HON Innovation endorsed by SAE 1,500
Direct
Emission Emissions
s
• Enables OEMs to meet Regulations
1,250
• EU – MAC Directive
CO2 emissions (kilograms)
• US – US EPA Tailpipe Rule 1,000
• Announced Plant Capacity 750
500
OEM Selection Criteria
250
HFO-
1234yf CO2 0
134a 1234yf CO2
Lowest Cost

• Lowest Carbon Footprint of
Most Reliable  all MAC Technologies
Minimal Redesign
(Near Drop-in)  • Significantly Higher Energy
Efficiency than CO2
Global Solution 
8 Implementing LGWP Solution in Automotive
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Potential Applications
Vending machines
Buses and Trains Air Driers
Trials under way with encouraging results
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Medium and Low Pressure Centrifugal Chillers
Performance of N-12, N-13 & L-13
 Theoretical efficiency comparable but gains seen in system evaluations
Developed LGWP Options for Multiple Chiller Applications
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HFO-1234ze (L13) in Commercial Refrigeration
First HFO Chiller operational at Waitrose supermarket (South London).
HFO 1234ze
Water Chiller
Claims based on Initial comparison with
same-size store running identical R290
system report important reduction in energy
consumption.
Frascold /Geoclima tests show a 3.5%
higher COP versus R134a Chiller.
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R-404A Replacement
Supermarket/Deli Cases (MT)
Supermarket Freezer Cases (LT)
> 50% GWP Reduction >65% >90%
All options offer significantly improved efficiency & GWP
reduction compared to R-404A
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Performance of L-41 as Replacement for R-410A
Experimental
Error ±5%
% Relative to 410A
Energy Efficiency similar to R410A
Additional Improvements are possible with minor design changes
L-41 offers a significant GWP reduction with respect to R-410A (over 75%).
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L-41 Provides Low Environmental Impact!
 Evaluation of “direct” and “indirect” contrution of L-41 to global warming.
 Because of L-41’s excellent efficiency match, the improvement in total impact is significant.
 Candidate with GWP of 150 has a poor efficiency match (8% less) compared to 410A
40,000
35,000 34,000
33,100 Total
31,600 0.5%
5.8% Direct 1.2%
30,000
 Assumptions:
LCCP (kg CO2 eq.)
5% annual leak rate 25,000
15 year life
15% end-of-life loss Direct
Southern EU climate used. 20,000 Indirect
Units are reversible (heat/cool)
15,000
10,000
5,000
-
Baseline 410A LGWP-500 LGWP-150
Results show superior overall benefits of L-41 at GWP of 500
compared to alternative at GWP of 150!
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Concluding Remarks
Revised F-Gas regulation to take effect 2015.
 Business As Usual Not an option.
Honeywell Leading HFO technology
 3 new molecules developed (2 Commercial / 1 pilot scale)
 HFO and Blends identified
 Validation with Partners in progress.
 Solstice L13 identified as potential replacement to R134a in medium Pressure
Chillers.
 Solstice N12 identified as potential replacement to Low pressure Centrifugal
Chillers.
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Thank you!
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warranty of any kind, expressed or implied. Information provided herein does not relieve the user from the responsibility of carrying out its
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suggestions concerning the use of materials and processes are made without representation or warranty that any such use is free of patent
infringement and are not recommendations to infringe on any patents. The user should not assume that all toxicity data and safety measures
are indicated herein or that other measures may not be required.
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