Presentazione di Joachim gerstel (Chemours Fluorochemicals) al XVI Convegno Europeo il 12 giugno 2015 - 1a sessione

1. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Joachim Gerstel
Business Development Manager
joachim.gerstel@chemours.com
Results from Supermarket
System trial with R-449A in
comparison with R-404A

2. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Agenda
Introduction
R-449A
 Main Properties
 Compatibility with Materials & POE
 Component Endorsements
 Supermarket System test Results
Summary

3. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
New Low GWP Refrigerants from Opteon® Family
HFO based Low-GWP Refrigerants
None-Flammable
Class 1
Mildly Flammable
Class 2L
Actual GWP (AR4) Name GWP Name GWP
HFC-134a 1430 R-513A 631 R-1234yf 4
HFC-404A 3922 R-449A 1397 R-454A 239
R-452A 2141
HFC-410A 2088 R-454B 460
HCFC-22 1810 DR-91 988 DR-3 148
HCFC-123 77 R-1336mzz(Z) 9

4. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Thermophysical Properties of R-449A
R-404AR-404A R-407AR-407A R-407FR-407F R-449AR-449A
GWP 3922 2107 1825 1397
Flammability class 1 class 1 class 1 class 1
Toxicity class A class A class A class A
Boiling Point
(at 1013 mbar)
-46,5 °C -45,3 °C -45,5 °C -46,2 °C
Crit. Temperature 72,0 °C 82,3 °C 82,7 °C 81,5 °C
Crit. Pressure 37,3 bar 45,2 bar 47,5 bar 44,1 bar
Average Temperature
Glide
0,4 K 4,7 K 4,5 K 4,3 K
Compressor Oil POE POE POE POE

5. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Enthalpy differences between R-404A and R-449A

6. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
R-449A - Compatibility with Materials & POE
• Seal Tube tests
• POE Miscibility measurements
• Elastomer Compatibility
• Plastic Compatibility

7. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Emerson Press Announcement
“has completed material compatibility
testing, application guideline
verifications, UL approval qualification
and extensive life testing with” “R-449A.”
“has completed material compatibility
testing, application guideline
verifications, UL approval qualification
and extensive life testing with” “R-449A.”
“Discus and Copeland Scroll™ products
are approved at this time, and small
reciprocating hermetic compressors will
be approved later in 2015.”
“Discus and Copeland Scroll™ products
are approved at this time, and small
reciprocating hermetic compressors will
be approved later in 2015.”
March 19, 2015March 19, 2015

8. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
R-449A – Included in Bitzer Selection Software
Semi-hermetic Recip & Semi-hermetic Screw
Bitzer Software v 6.4.3 rev 1302 Now
includes Opteon®
XP40 (R-449A)
for selection of :

9. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Compressor Approvals - Dorin
Compressors ranging from:
< 1kW to >250 kW Cooling Capacity
+5ºC to -40ºC Evaporating Temperatures

10. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Heat Exchanger Manufacturer Approval

11. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
+0
+5
+10
+15
+20
+25
+30
+35
+40
+45
+50
-10 / 50 -10 / 30 -30 / 50 -30 / 30
RelativetoR-404A(∆T)
Evaporation [°C] / Condensation [°C]
Discharge Temperature
R-404A
R-407A
R-407F
XP40
Calorimeter test with 20 °C suction (source: Bitzer)*
R-449A Discharge Temperature Comparison
17K

12. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Italian Supermarket – Medium Temp Cascaded with LT CO2
12
Compressor Model Quantity Range Capacity / W
1 HSK 6451-50 1 –15/°+45°C 83200
2 HSK 6451-50 1 –15°/+45°C 83200
3 HSK 6451-50 1 –15°/+45°C 83200
4 HSK 6451-50 1 –15°/+45°C 83200
5 HSK 6451-50 1 –15°/+45°C 83200
6 HSK 7471-90 1 –15°/+45°C 105500
Total Capacity / W 521500
Margin relative to requirement / W 57412 (11,01%)
Cabinet & Expansion Valve Models
Compressor Models (Bitzer Screw)

13. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
13
Danfoss ADAP-Kool
1) EKC/AKC= older control
2) AK2=new control
Antoine Coefficient
ln(p) = A1 + A2 / ( T + A3 ) where p is the pressure in bar (absolute) and T is
the temperature in °C. For blends the calc is based on dew line.
Coefficient R407A Danfoss AK2
R449A
Danfoss AKC/EKC
R449A
A1 10,4283 10,608 10608
A2 -2254,83 -2372,9 -2373
A3 255,692 264,33 2643
Remark Position 21
Electronic Expansion Valve

14. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
14
System Measurements – Daily Average Temperature of 28ºC

15. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
15
-9%
Energy Comparison – Daily Power vs Daily Ambient Temperature

16. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Over 200 supermarkets and other applications
already retrofitted in Europe
 Germany , Netherlands, Spain, Italy, Belgium,
Austria ...
 Different makes of compressors and operating
modes and technologies such as MT , LT,
cascade systems…
 Minor or no adjustments made and no
component or oil changes needed.
 To date all retrofits to R-449A have shown
an improvement in refrigeration system
power consumption compared with R-404A/
R-507A and R-407F.
 R-449A: Many component approvals are
available.
Summary

17. Latest Technologies in Refrigeration and Air Conditioning - XVI European Conference Milano, 12th - 13th June 2015
Molte Grazie!
Email: joachim.gerstel@chemours.com
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