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Transcript of Status of Refrigerant Changes Impacting the HVACR … PresentationRefrigerant ChangesMay... ·...
1
Status of Refrigerant Changes Impacting the HVACR Industry
Rajan Rajendran, Ph.D.
Vice President – Systems Innovation and Sustainability
May 3, 2016
2
Agenda
1 Background, Montreal Protocol and Amendment
2 Regional and National Regulations
3 Refrigerants Standards and Codes
4 Industry Refrigerant Research Activities
5 Energy Efficiency Regulations
6 Paris Agreement on Climate Change
7 Questions
Background, Montreal Protocol and Amendment
44
Ozone Hole: Reason for R-12 and R-22 Phase-out(Exposure to UV Radiation Leads to Skin Cancer)
Montreal Protocol, signed Sept. 16, 1987, bans CFCs and HCFCs
55
1999
100
50
0
%
1996
CAP
100%
65%
25%
10%
US
EU
A5 Nations
Today
32.5% - 2025
2.5% - 2030
0% - 2040
2004
No New
Equipment EU
2010
No New
Equipment US 2013
“Freeze”
A5 Nations
20202015
90%
65%
Montreal Protocol Agreement for Reducing ODP Refrigerants: R-22 Phase-out Timeline
Developing nations (Article 5 countries) are only now beginning to phase-down the use of HCFC 22
66
Montreal Protocol’s Positive Impact on Ozone Hole
But the story does not end there…..
Ozone hole is still large, but healing;
full recovery is expected ~2070.
Source: NASA. Image from Nov. 2, 2014
False-color view of total ozone over the Antarctic
pole. The purple and blue colors are where there
is the least ozone, and the yellows and reds are
where there is more ozone.
7
A New Concern: Climate Change, the Driver for HFC Actions
88
Montreal Protocol’s Positive Impact on Climate Change
Many nations started taking independent actions – potential for a patchwork of global regulations
Montreal Protocol has the biggest
impact on climate change!*
… But, developing nations’
growth could dwarf gains,
per predictions**.* Economist, January 2014
* *Velders et al, OEWG35, Bangkok, April 22, 2015
99
North American Proposal for HFC Phase-down
Canada, US, Mexico proposed this several years ago; other proposals also on table – India, Micronesia, African nations, etc.
0%
20%
40%
60%
80%
100%
120%
2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 2055
GW
P W
eig
hte
d C
ap (
% o
f B
aselin
e)
Year
Non- A5 Countries
(US, Canada etc)
A5 Countries (Asia, etc.)
1010
Meeting of the Parties to the Montreal ProtocolDubai Agreement
• 27th Meeting of the Parties to the Montreal Protocol in Dubai, UAE, on 11/5/15
– Agreement reached to phase down HFCs
– Negotiations underway on details
– Expect target ~20% range; the years and steps are to be determined
• Article 5 (developing) and high ambient countries could get different schedule and limits
– Currently phasing out of HCFC22 and asked to phase down HFCs…and their economies are growing
– Alternative refrigerants for high ambient conditions are not yet fully understood
• Three meetings scheduled for this year
– 4-8 April, 18-23 July, 10-14 Oct
– Is final deal likely in last meeting?
NA and European commitment is strong and Article 5 countries engaging well – hoping for agreement by end of year
Regional and National Regulations
1212
European F-Gas Regulation
F-gas implementation is underwayGrowth in CO2 and propane systems highest in this region
13
EPA’s Final RulePhase-Out Candidates*, Likely Alternatives* and Dates
* Refer to Tables 4, 5 and 6 of Final Rule for complete details
Phase-Out
Refrigerant
Super-
market
New
Super-
market
Retrofit
Remote
Cond. Unit
New
Remote
Cond.
Unit
Retrofit
Stand-Alone
MT <2,200 BTU/hr. and
not contain flooded evap.
New
MT ≥2,200 BTU/hr. with or
without flooded evap.
New
LT
New
LT and MT
Retrofit
R-404A/507AJan 1,
2017
July 20,
2016
Jan 1,
2018
July 20,
2016Jan 1, 2019 Jan 1, 2020
Jan 1,
2020
July 20,
2016
R-410A OK - OK - Jan 1, 2019 Jan 1, 2020Jan 1,
2020-
R-407A/C/F OK OK OK OK Jan 1, 2019 Jan 1, 2020Jan 1,
2020OK
HFC-134a OK OK OK OK Jan 1, 2019 Jan 1, 2020 OK OK
Some
Likely
Alternatives
R448A/449A OK OK OK OKNeither SNAP-
approved, nor banned
Neither SNAP approved,
nor bannedOK
OK for LT
only
R-450A/513A OK OK OK OK OK OK OK OK
R-290 - - - - OK OK OK -
R-744 OK - OK - OK OK OK -
R-717
OK (in
primary loop
of secondary
CO2 sys.)
-
OK (in primary
loop of
secondary CO2
sys.)
- - - - -
Reference: Federal Register / Vol. 80, No. 138 / Monday, July 20, 2015 / Rules and Regulations, 42870-42959
1414
US EPA: Additional Change of Status for
Refrigerants Proposed, March 29, 2016
https://www.epa.gov/snap/snap-regulations
1515
US EPA: Additional Change of Status for
Refrigerants Proposed, March 29, 2016
1616
US EPA: Additional Change of Status for
Refrigerants Proposed, March 29, 2016
1717
US EPA: Additional Change of Status for
Refrigerants Proposed, March 29, 2016
Once proposed rule published in Federal Register, there will be a comment period before rule is published final
1818
Environment Canada (EC) Proposal
• Mar 23, 2016 EC issued a Consultation Document on Proposed Regulatory Measures on HFCs*
• Phase-down (NAP) option also proposed (2019-90%; 2024-65%; 2030-30%; 2036-15%; baseline 2011-2013)
• Comment period ends April 29, 2016; final rule expected later this year or early in 2017
Medium temperature stand alone systems might face challenges similar to situation in the US
* https://www.ec.gc.ca/ozone/default.asp?lang=En&n=77A94123-1
Application GWP Limit and Year (Jan 1, 20XX)
Ref – Stand alone MT Max 650 GWP; Jan 1, 2020
Ref – Stand alone LT Max 1500 GWP; Jan 1, 2020
Ref – Central systems (racks, both MT/LT) Max 1500 GWP; Jan 1, 2020
Foams Max 150 GWP, Jan 1, 2021
AC – Chillers Max 700 GWP; Jan 1, 2025
Domestic Ref Max 150 GWP; Jan 1, 2025
Mobile Ref Max 2200 GWP; Jan 1, 2025
1919
EPA Proposal to Amend Clean Air Act Section 608
Ref. Mgmnt. Regs (11/9/15)
• Lowers repair leak rate threshold for 50+ lbs. refrigerant charge systems
– From 35% to 20% for industrial process refrigeration (IPR) and comm. ref. equipment
– From 15% to 10% for comfort cooling equipment
• Requires regular leak inspections or continuous monitoring devices for ref/AC systems:
– Annual inspections for systems normally containing 50+ lbs. of refrigerant
– Quarterly inspections for commercial refrigeration and IPR systems normally containing 500+ lbs. of refrigerant
• Prohibits operation of systems with 50+ lbs. of refrigerant that have leaked 75% or more of full charge for two consecutive years
• Requires techs to keep a record of refrigerant recovered during system disposal from systems with a charge size from 5–50 pounds
• Extends the requirements of the refrigerant management program to cover substitute refrigerants, such as HFCs
Final rule expected before the end of this year
http://www.epa.gov/section608/proposal-amend-section-608-refrigerant-management-regulations
2020
Environment Canada Regulations on Refrigerant Management
• Federal Halocarbon Regulations, 2003, regulates HFCs as well as ODP fluids; Provincial regulations mirror federal
– Systems with > 50 kg (110 lb) should have refrigerant leak monitoring system
– Inspections required per manufacturer recommendations or twice a year
– Systems >10 kg refrigerant should have self-reseating relief valve vented to atmosphere
– Requires recovery, reclaim of all refrigerant
• Regulations are strong in design and best practices
https://www.ec.gc.ca/ozone/default.asp?lang=En&n=144CE038-1https://www.ec.gc.ca/ozone/default.asp?lang=En&n=127A4F77-1
2121
California Proposal for Regulating HFCs
• Governor’s 2015 order to reduce all GHGs (over 1990 levels)
40% in 2030 80% in 2050
• Draft strategy released September 2015
– All sectors targeted for emission reductions
1/1/2021 - New commercial refrigeration equipment, <150 GWP
1/1/2022 - New HVAC equipment (comm. and resi), <750 GWP
– If international and national actions inadequate, CA will follow Europe, Australia and Japan in taking additional measures like above
• Final proposal in “Spring 2016”
States/Provinces (in US/Canada) and nations in EU could pass more stringent regulations – we have to be aware
Refrigerant Standards and Codes
2323
State of Standards and Codes – Global View
Increasing charge limits for flammables is global trendExpect safety standards in 2017; codes follow standards
Refrigerant
ClassificationUsage Restriction Application
ASHRAE34
Refrigerant Designation
& Safety Classification
UL2182
ASHRAE15
Safety Standards for
Refrigeration Systems
2015-2018
UL1995
Heating and Cooling
Equipment 2014-2015
UL471
Commercial
Refrigerators and
Freezers 2015-2019
UL621
Ice Cream Makers
2015-2019
UL606335-2-40
Heating and Cooling
Equipment
Refrigerant
ClassificationUsage Restriction Application
Based on ISO EN378
Refrigeration System
and HP 2014-2016
Based on IEC Based on IEC Based on IEC
Refrigerant
ClassificationUsage Restriction Application
ISO817
Refrigerant Designation
& Safety Classification
(2013-2014)
ISO5149
Safety and
Environmental
Requirements, Phase 1
Phase 2 2014-2015
IEC60335-2-40
Heating and Cooling
equipment
2015-2017
IEC60335-2-89
Commercial
Refrigerating
Appliances
2015-2019
IEC60335-2-24
Refrigerating appliances
Ice and Ice Cream
Makers
2015-2019
Un
ite
d S
tate
sE
uro
pe
Inte
rna
tio
na
l
complete under revision
2424
International Codes
• Codes are used by inspectors to approve buildings and equipment
• Three codes commonly used that affect our industry:
– International Machine Code (IMC)
– International Fire Code (IFC)
– Uniform Mechanical Code (UMC)
• Refrigerant Codes and Standards Task Force working to move process along
Next code change cycle for incorporating A2L updates is 2018-2021
Industry Refrigerant Research Activities
2626
Current State of Refrigerant OptionsLow GWP alternatives are flammable or high pressure
ASHRAE numbers are now issued for several synthetic alternatives –first step for EPA approval
R-410A
Like
Capacity
R404A &
R407/22
Like
R134a
Like
GWP Level
400-675
< 1500
~600
~300
HFO 1234yf
HFO 1234ze
ARM-42
R410A
R22
R407A
R407C
R407F, R452A = XP44
ARM-35
0 500 1,000 1,500 2,000
Pressure
or
R32/HFC/HFO
Blends
R32/HFO
Blends
R134a
CO2
R404A
R507A
DR2, HFO 1233zd, ARC 1
R290
NH3
A1 – Non-Flammable
A2L – Mildly Flammable
A3 – Flammable
B2L – Toxic, Mildly Flam.
R123-Like
(V.Low Pr.)
(3922)
R32
R448A = N40
R449A = DR33
R449B = ARM-32
N20
R513A = XP10
R450A = N13z
R444B = L20
L40, DR7
ARM-20b
R455A = L40x(HDR110)
DR3
ARM-20a
R447B = L41z; R452B = XL55
L41y, ARM-71a
<150
Qualitative – Not to Scale
R515A
2727
AHRI’s Low GWP Alternate Refrigerant Evaluation Program (AREP)*
• Both studies concluded with Low GWP AREP conferences held ahead of ASHRAE meetings in 2014 and 2016
• General observations:
– All were drop-in testing with limited modifications (expansion devices)
– Results indicate many alternatives are promising; optimization needed
– Compressor testing showed that in some cases, different oils might be needed for the alternates
AREP was good for industry, next step is redesign and optimization
Phase Refrigerants Reports Equipment Tested
I - 2014 38 40 RTU, Split Ducted, Chiller, Ice,
CRE, Transport, Compressors
II - 2016 29 30 RTU, Split Ducted, Chiller,
Stand Alone Ref
Compressors*See http://ahrinet.org/site/508/Resources/Research for details
2828
AHRI Flammable Refrigerants Subcommittee
• Objectives
– Identify gaps in flammable refrigerant research
– Develop roadmap to complete critical research needed for safe use
– Focus on 2L refrigerants
• Schedule
– Before end 2017, for 2021 Building Codes cycle
• Members
– Chemical, original equipment and component manufacturers among others
• Projects proposed
– Assess risk by real-life leaks (ref and oil) and ignitions testing
– Investigate ignition temps for A2L fluids at various conditions with oil and air effects
– Investigate basis for setting charge limits of A2L, A2, and A3 refrigerants
A definitive research in public domain for A2L fluids that will impact flammable refrigerants adoption
2929
High Ambient Testing of Alternative Refrigerants
• Issue raised during negotiations of HFC phase down - lack of high ambient performance data for low GWP alternatives
• US and UNEP/UNIDO funded four projects 2013 – 2015
– PRAHA (Promoting low GWP Refrigerants for Air Conditioning Sectors in High Ambient Temperature Countries)
– EGYPRA (Egyptian Project for Refrigerant Alternatives)
– AHRI Low GWP AREP II – High Ambient Tests
– DOE’s ORNL High Ambient Tests
• HCFC 22 and R-410A alternatives, including R290 tested; in most cases they were “drop-in” testing
• Some observations of the different studies
– R-410A alternatives performed better than R410A
– R32 performed well but very high discharge temperatures
– HCFC 22 alternatives results mixed
– R290 had lower capacity, higher efficiency
Proprietary, optimized system testing is likely next stepQuestion: For Mideast, HCFC 22 or R-410A alternatives?
Energy Efficiency Regulations
31
2016 2017 2018 2019 2020
Supermarket (Rack)
Walk-In (Remote CDU)
Cooler
Freezer
Reach-In (Stand-Alone)
Cooler <2,200 BTU
>2,200 BTU
Freezer
Ice Machine
EPA and DOE Changes Impact Refrigeration
<2,500 GWP
<2,500 GWP
20–40%
<600 GWP
<600 GWP
<1,500 GWP
30–50%
5–15%
EPA Refrig. DOE Energy
1/1/17
1/1/18
3/27/17
Awaiting Final Court Sign-Off
1/1/18
1/1/20
1/1/19
1/1/20
20–30%
32
HVAC Dealing With Over 15 DOE Activities
Product Covered Expected
Rulemaking
Timing
2015 Regional Std– Enforcement 2016
Residential Central AC And HP 2021 2016
Commercial - > 6Ton 2016
Packaged Terminal AC & HP 2015
Single Package Vertical Units (eg.
Mobile Homes, Telecom Towers, Bard
Units)
2015
1.5-5 Ton 3 Ph, Commercial 2015
Product Covered Expected
Rulemaking
Timing
Commercial CAC & HP – Water &
Evaporative Cooling
2018
Pool Heaters 2017
Commercial Water Heaters 2016
Residential Water Heaters 2016
Residential Furnaces – 92AFUE 2016
Residential Furnace Blowers 2015
Commercial Warm Air Furnaces 2016
Small Electric Motors 2016
Electric Motors 2016
33
DOE Regulations in Residential HVAC
SouthEast
SEER HSPF SEER SEER EER
AC <45KBtu/hr 14 15 15 12.2 / 10.2*
AC >= 45KBtu/hr 14 14.5 14.5 11.7 / 10.2*
HP 15 8.8
Packaged Units 14 8 11
North SouthWest
* 10.2 EER limit for equipment >= 16 SEER
2023 Standard Proposed Levels To ASRAC
• In 2023 Potential Changes To Appendix M1 (Test Procedure)
• Changes To Static Pressure, Heating Load Line
• Will Require New Metric Instead SEER And HSPF
• 2015 Regional Standard Enforcement Rule In Progress – Expected in 2016
• Record Keeping Requirements For Manufacturers, Distributors & Contractors
• DOE Policy Guideline On Units Without High Sales Indoor Match
• Dry Charge Units Without Matched Combination banned from 1st Feb, 2016
34
DOE Regulation In Commercial AC
Efficiency Standards 6-10 Ton 11-20 Ton 21-63 Ton
ASHRAE 90.1-201011.0 EER 10.8 EER 9.8 EER
11.4 IEER 11.2 IEER 10.1 IEER
DOE – EL1 (90.1 2013) 11.2 EER 11.0 EER 10.0 EER
Eff. Date: 1/1/2018 12.9 IEER 12.4 IEER 11.6 IEER
% Improvement vs. 2010 13.2% 10.7% 14.9%
DOE – EL3 14.8 IEER 14.2 IEER 13.2 IEER
Eff. Date: 1/1/2023
% Improvement vs. 2010 29.8% 26.8% 30.7%Note: Electric Resistance Values Shown, Subtract 0.2 EER/IEER For All Other Equipment
CEE Commercial Unitary AC and HP Specification
(w/ Electric Heat or No Heat)
Old Specifications Current Specifications
Size
CategorySystem Type
CEE
Tier 0
CEE
Tier 1
CEE
Tier 2
CEE
Tier 1
CEE
Tier 2
CEE
Advanced Tier
6 10 Ton
Single
Packaged and
Split
11.7 EER
11.8 IEER
11.7 EER
13.0 IEER
12.2 EER
14.0 IEER
11.7 EER
12.9 IEER
12.2 EER
14.0 IEER
12.6 EER
18.0 IEER
11 20 Ton
Single
Packaged and
Split
11.7 EER
11.8IEER
11.7 EER
12.5 IEER
12.2 EER
13.2 IEER
11.7 EER
12.4 IEER
12.2 EER
13.2 IEER
12.2 EER
17.0 IEER
21 63 Ton
Single
Packaged and
Split
10.5 EER
10.6 IEER
10.5 EER
11.3 IEER
10.8 EER
12.3 IEER
10.5 EER
11.6 IEER
10.8 EER
12.3 IEER
10.8 EER
13.5 IEER
Note: Electric Resistance Values Shown, Subtract 0.2 EER/IEER For All Other Equipment
Effective Jan 2016
Paris Climate Change Agreement
3636
2015 Was Warmest Year Since 1880USA Today Article, 1/20/16
News stories like this one have brought the global warming issue to the forefront everywhere
3737
Paris Agreement - Highlights
• Global climate change agreement reached - COP21 Meeting, Paris, 12/12/2015
– Target emission reductions (all emissions) that will
• Limit global temp rise to 2C above preindustrial levels (stretch goal 1.5C)
– Agreement not legally binding
• Countries must update/submit their pollution reduction pledges (NDC –Nationally Determined Contributions) by 2020
– First “Global Stocktake” in 2023 and every five years thereafter
• Observations:
– A 2C limit means reducing emissions by 40-70% by 2050 compared to 2010
– HFCs not singled out but are one of the greenhouse gases
– COP21 Paris Agreement is “emissions” focused
Montreal Protocol Treaty (legally binding) is “consumption” focused
Paris agreement is non binding, but NDCs will have impact on HVACR industry for many years into the future
Questions?
Thank you!