(Title)Retain, Retrofit or Replace? Choosing a refrigeration system … · 2017. 3. 28. ·...
Transcript of (Title)Retain, Retrofit or Replace? Choosing a refrigeration system … · 2017. 3. 28. ·...
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(R)evolutions in refrigeration.Can we make things cold without turning up the heat?
The Past: Evolutions of a Revolution.
The Present: Minimising Our Impact and Enabling Better Business.
The Near Future: HFC Phase Down
The (R)evolution to come.
Matthew DarbyOwner EcoChill, Chair Climate Controls Companies Association (NZ)
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THE PASTEVOLUTIONS OF A REVOLUTION
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17481805
1850-1870
1914 1920/ 30s
The Evolution of Refrigeration
1000 BC
REVOLUTION EVOLUTION
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THE PRESENTMINIMISING OUR IMPACT:
RESPONDING TO ENVIRONMENTAL
LEGISLATION
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Legislation to meet New Zealand's international treaty commitments for Net 0 emissions by 2050…
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1996NZ implements Ozone Layer Protection Act & Regulations
2oo8Climate Change Response (ETS) Act
2010New HCFC Imports reduced on yearly basis by 63%
2015NO new HCFC’s imported: R22
2019HFC PHASE DOWN
BEGINS
NZ Regulatory change focused on restricting F gas refrigerants.
NOT A USE BAN
1987Montreal Protocol
1992 United Nations Framework Convention on Climate ChangeObjective: Global warming 2º minimum by 2030.
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The NZ Emissions Trading SchemePrinciple tool to control emissions impact and meet global warming targets.
Carbon Pricing
• NZ Carbon unit price:$18NZD
• To achieve a 2°C global warming limit by 2030 -Est: $80 -$120NZD
¹March 2017
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The cost of the ETS on refrigerants in New Zealand.
Refrigerant Carbon cost alone.
R-404a $403.78
R-410A $220.15
R-134a $182.44
• Significant additional bottom line
costs for companies.
• Estimated additional $11,000,000 to
WHOLESALE costs in 2016.
• Estimated increase 33.33% annually
for next 3 years as “2 for 1” subsidy
removed.
Source: Dave Nicholls IRHACE
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Approx. 925 ton across the board.
New Zealand consumed • 500 ton to March 2015.• 22% increase on 2014.• Estimates of annual leak
rate as high as 70%.
Yet despite growth in natural refrigerants, demand for F gases continues to rise across industries and products.
Bulk importation
54%Contained -HVAC&R all
use27%
Mobile AC -134a19%
SYNTHETIC REFRIGERANT USE 2015/16 (KG)
500T
175T
249T
Source: • EPA Synthetic Greenhouse Levy 2015 Report• Dave Nicholls IRHACE/ Refrigerant Recovery
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MANAGING HFC PHASE DOWN
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NZ: HFC Phase Down Timetable
“We will work with industry to develop a regime to phase down HFCs which is:
–workable –environmentally effective –consistent with any international obligations”. Jean Le Roux,
Manager International Team, Ministry for the Environment.
NB: As required by Kigali; NZ domestic policy TBA.
Questions for MfE? Contact the Montreal
mailbox [email protected] .
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Cost/ Penalties: Emissions Trading Scheme.
Refrigerant phase down and bans.
Energy efficiency benefits.
International legislation & impact on suppliers
Consumer pressure
End Users.
HVAC&R Industry.
Lack of strategic/ refrigerant only focus.
Unregulated industry.
Lack of incentives.
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Decrease GWP
IncreaseGWP
Factors impacting HFC phase down objectives:
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Factors for success
GWP Objectives
Regulation
Industry Education &
Training
End User Buy In
Health & Safety
Containment strategy
Disposal strategies
Comm’s, Tools & Support
R&D
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Comes down to 3 options to :
Retain
Keep current system
Retrofit
Keep plant and replace with a synthetic refrigerant
Replace
Build new plant with synthetic or natural refrigerant
Capital Cost
Low
Strategy
Low
Capital Cost
Med
Strategy
Med -High
Capital Cost
Med -High
Strategy
High
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Safety
Performance
Economics
Environment
Retrofit or Replace: Choosing a Refrigerant
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REFRIGERANT SELECTION
Toxicity, Flammability
WorkingPressures
Physical Properties
Energy
Technology Changes
EnergyEfficiency
Global Warming Potential
(GWP)
????
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Retrofit or Replace: Changing Refrigerants
Synthetic
CFC’s (Phased Out)
HCFC (Importation
Ban)
HFC’s
HFO’s
Natural
Ammonia
CO2
HC
Water
Air
1Secondary Systems
Commerciallyviable
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Retrofit or Replace Refrigerant: Synthetics
Ref. Safety Performance Economics*EnvironmentGWP (100Y)
404A $119 kg 3922
438A $119 kg 2264
407F $80 kg 1824
134A $80 kg 1430
417A $85 kg 1950
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*Generalized NZ market prices March 2017
Legend0 = Poor1 = OK
Not one meets <150 GWP
criteria.
2= Good3 = Excellent
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Replace Refrigerants: Naturals
Ref. Safety Performance Economics*EnvironmentGWP (100Y)
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$6.50 kg 1
3
0
$ 82 kg
$14 kg
CO2(R744)
Ammonia (R717)
HC /mix (e.g.
R290)
Legend0 = Poor
1 = OK2= Good
3 = Excellent
*Generalized NZ market prices March 2017
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Replace Refrigerants: HFO 1234yf
Safety
Low toxicity (?), flammable, toxic on
combustion.
PerformanceNo installs within
NZ.
EconomicsNot currently
available.
Enviro.(GWP 100Y)
4
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“No current
NZ installs.”
HFO 1234yf
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Replace Systems: CO2
Advantages
• Uses a single refrigerant.
• Increased energy efficiency.
• Low cost of CO2.
• Safe refrigerant.
• Environmentally good choice.
Disadvantages
• Requires specific knowledge and skill to install and maintain.
• Performance in warmer climates.
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“Capital and servicing costs gap closed.”
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Replace Systems: Standard Secondary
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• Reduce amount of primary stage refrigerant.• Reduce leakage rate of primary stage refrigerant.• Reduced primary system size.• Easier maintenance.
Why?
• Smaller primary circuit compared to DX.
• Uses a secondary fluid as main cooling medium.
What?
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Replace Systems: Advanced Secondary
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Features Standard Secondary Advanced Secondary
Expansion Valves Typically Mechanical Electronic
Capacity Control Typically Unloaders VSD
Primary Circuit Size Typically Larger Optimised for Critical Charge
Primary Refrigerant Quantity Typically Higher Minimised through design
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Replace Systems: Advancements in Secondary Systems
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• Reduced refrigerant charge.• Increased energy efficiency.• Increased system reliability.• Reduced operating costs.• Reduced stored product risk.• System safety and compliance.
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The Next R(evolution) in Refrigeration
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Electro-caloric
Magnetic SonicHydraulic Optical Cooling
Acoustic
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Lowering impact is not just about refrigerant.
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Safety
Charge minimisation,
user error
Energy Efficiency
System, & operational
Retail efficiencies
Space, versatility,
longevity, food trends.
Electronics & Computing
Remote control & maintenance, data.
Integration
Containment
“Contained refrigerants do not cause damage.”
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Real time monitoring AND servicing. Self
service.
First line of site assessments.
Virtual servicing.
System immersion –design and service.
Virtual design –global teams.
Disruption technologies
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TURNERS & GROWERS: LOW GWP SOLUTION DRIVES BETTER BUSINESS
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Problems• Old R22 systems
• Want to reduce running costs
• Looking for added value
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Solution• Reengineered precooling
• Refurbished R22 coolstores to optimal conditions
• Built new coolstore, same footprint as existing R22
• EcoChill Kiwi using HC/ Glycol Advanced System design.
Kerifresh images courtesy Kerifresh.co.nz
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Store capacity (Pallets)
Cost to Cool(Per Pallet/
Day
% improvement
R22 840 $0.34 Baseline
EcoChill 864 $0.25 36%
Result:
“36% saving on
energy costs while
cooling more
pallets”
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Total Equivalent Warming Impact (TEWI)
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948
1,173
1,568
1,1191,228
R290 R22 R404A /R507
R134A R407f
Tons of CO2 over 15 years
“225
tonnes of
CO2 savedor the yearly
emissions
from 43
cars.”
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“Refrigeration:
providing
competitive
advantage.”
Maintaining Optimal Conditions
• Pack
• Precool
• Uniform Temperature
• High Room Humidity
• No Air Temp Variations
• Energy Efficient
• Low Maintenance
• Increased margin
• Higher “vine to table” volumes
Zespri images courtesy zespri.com 31
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HFC Phase down – a huge opportunity for the industry.
Everyone knows what CFC’s are – why do people know about a refrigerant but the refrigeration
industry is invisible?
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www.ecochill.kiwi
QUESTIONS?