innovations in commercial refrigerationfrigo-consulting ag, raphael gerber atmosphere 2010,...
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![Page 1: Innovations in Commercial RefrigerationFrigo-Consulting AG, Raphael Gerber Atmosphere 2010, Brussels, 27.9.2010 11 expansion-compression-unit (ECU)it (ECU) Measurement example of 2.7.2010:](https://reader035.vdocument.in/reader035/viewer/2022070211/60fc71e52050f168bb032d03/html5/thumbnails/1.jpg)
CO2 as a refrigerant
Innovations in Commercial RefrigerationRefrigeration
27th September 2010
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F i C lti AGFrigo-Consulting AGCO2
Engineering CommercialIndustrialVacuum-SystemsIce slurries
www.frigoconsulting.com
ConsultingSpecifications
Ice slurries
Support
Optimization
Atmosphere 2010, Brussels, 27.9.2010 2Frigo-Consulting AG, Raphael Gerber
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CO i l fCO2 commercial referencesRunning CO2 installations, Switzerland (engineered by Frigo-Consulting AG)
120
140
gera
tion
stores with sub- and transcritical installations
80
100
mm
erci
al re
frig
and
LT):
stores with subcritical installations
40
60
and
larg
e co
m(H
T, M
T a
0
20
03 04 05 06 07 08 09 10
med
ium
a
Atmosphere 2010, Brussels, 27.9.2010 3Frigo-Consulting AG, Raphael Gerber
2003
2004
2005
2006
2007
2008
2009
2010
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th t ti l f COthe potential of CO2
components are available and are being optimized
l i l d i lecological and economical advantages are pushingthermodynamic potential is promisingthermodynamic potential is promising
Atmosphere 2010, Brussels, 27.9.2010 4Frigo-Consulting AG, Raphael Gerber
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ffi i t dcompressors: efficiency trend
Atmosphere 2010, Brussels, 27.9.2010 5Frigo-Consulting AG, Raphael Gerber
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ffi i t dcompressors: efficiency trend
Reference: Javerschek, O.; Dittrich, G.: Advanced compressor design and various systems for commercial applications with CO2. IIR International Conference on Compressors and Coolants, Papiernicka 2009
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p p
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ffi i t dcompressors: efficiency trend
Atmosphere 2010, Brussels, 27.9.2010 7Frigo-Consulting AG, Raphael Gerber
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l t i th ffi iexamples to improve the efficiency
adiabatic or wet heat rejection (water spray)multiple expansion and compression (flash-tank,p p p (parallel compression)work extracting expansion (ejector, expander)subcooling the liquid CO2
clever controlsheat transfer (microchannels)
Atmosphere 2010, Brussels, 27.9.2010 8Frigo-Consulting AG, Raphael Gerber
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fl h t k topen flash-tank systems
Atmosphere 2010, Brussels, 27.9.2010 9Frigo-Consulting AG, Raphael Gerber
Growa Bern, Switzerland, low temperature installation, Q‘0 = 50 kW
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P ll l iParallel compression
Prodega Givisiez Switzerland medium
Atmosphere 2010, Brussels, 27.9.2010 10Frigo-Consulting AG, Raphael Gerber
Prodega Givisiez, Switzerland, mediumtemperature installation, Q‘0 = 150 kW
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i hi h drecovering high grade energy
expected energy savings:• 10-15% in average• up to 30% at high ambient temperatures
Atmosphere 2010, Brussels, 27.9.2010 11Frigo-Consulting AG, Raphael Gerber
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i i it (ECU)expansion-compression-unit (ECU)
Measurement example of 2.7.2010:- ambient Temperature +28 °C- Evaporating Temperature -10 °C
Source: Wenzel, M; CO2-Expander-Kompressoreinheit:Weiterentwicklung, Einbindung in Kälteanlagen und Regelung, DKV Berlin, 2009
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i i it (ECU)expansion-compression-unit (ECU)
customer contractors
consultant
suppliers
sponsors
Prodega Basel, Switzerlandmedium temperature installation, Q‘0 = 80 kW
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HOW to Bring Natural RefrigerantsHOW to Bring Natural Refrigerants Faster to Market through Innovations…
benefit from the technical potential of th f i t CO
think long term...- prove energy efficiency
- show pay back- consider rising energy
find partners...the refrigerant CO2cost
go greendon’t underestimate...- technical solutions
go green...- show ecological
efficiency
show advantages...-no cost risk (purchase price,
taxes)green image
Atmosphere 2010, Brussels, 27.9.2010 14Frigo-Consulting AG, Raphael Gerber
- green image
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th kthank you.
Atmosphere 2010, Brussels, 27.9.2010 15Frigo-Consulting AG, Raphael Gerber