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Solar Cooling for Small Scale Applications with Adsorption TechnologyDerby 2009, PerpignanSorTech AG, GermanyDr. Jörg Rupp
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1© copyright 2009 SorTech AG
New adsorption technology allows for compact chillers for broad range of applications
ACS 088 kW nominal cooling capacity
Driving temperature range: 55-95°CNominal working point at 72°C
Applications
Solar air conditioningDistrict coolingCooling with process heatMicro co-generation
ACS 1515 kW nominal cooling capacity
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2© copyright 2009 SorTech AG
Why we are different 1: Coating technology
Patented coating technologyHeat exchanger surface is pasted with silica gelwith the aid of epoxy resin
Advantages• Improved speed of heat transfer• Improved vapor transport• Less volume and weight⇒ Significantly increased power density
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3© copyright 2009 SorTech AG
Patented compact design
Vacuum envelope is supported by internal structure Thin metal sheet used for vacuum envelopeNo outside intervention into vacuumNo moved parts
Why we are different 2: Innovative vacuum construction
Advantages • Reduced material consumption and cost• Reduced weight and volume• Simplicity of design⇒ Highest power density
Condenser
Evaporator
Adsorber Adsorber
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4© copyright 2009 SorTech AG
Subsystem approach chiller plus re-coolerRe-cooler is controlled by chiller (one integrated controller)State of the art, highly efficient EC-fan technologyFresh water spraying for peak ambient temperature
Why we are different 3: Optimized system
Advantages• High electrical efficiency (EER of >10*), especially
under partial load• Low water consumption• Easy system integration
*cooling capacity/electrical consumption
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5© copyright 2009 SorTech AG
Cooling – Temperature range - ACS 08
22-37°C
55-95°C 6-20°C
Cooling
Re-cooling
Solar panel
5-10 kW performance
Cogeneration
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6© copyright 2009 SorTech AG
Cooling – Energy flows at nominal conditionsACS 08
21.5 kW
13.5 kW 8 kW
7 W electricity consumption
9 W electrical
Re-cooling
Solar panel
CogenerationCooling
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7© copyright 2009 SorTech AG
Heat pump mode / winter operationEnergy flows at nominal conditions - ACS 08
15 kW
11.3 kW
Re-cooler
15 kW performance1.33 therm. COP
3.7 kW
or
Floor heating
9 W electrical
Solar panel
Cogeneration
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8© copyright 2009 SorTech AG
SolarCombiPlus System
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9© copyright 2009 SorTech AG
Broad range of applications
Solar Cooling Process CoolingDistrict CoolingCHPC
ACS 15ACS 08
Senertec, Dachs Fernwärme Ulm, www.rw-electronic.de www.st-k.ch
Up to 75 kW with parallel use of
the ACS15
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10© copyright 2009 SorTech AG
Summary
Compact, highly efficient chillerLow driving temperatures, from 55°CRobust at varying temperaturesHigh overall efficiencyEasy integrationLow-maintenance designClean technologyCooling and heatingSystem design improved with SolarCombiPlus
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11© copyright 2009 SorTech AG
Merci beaucoup!Dr. Jörg Rupp
www.sortech.de
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