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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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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