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Adsorption cooling technology InvenSor GmbH Energy-savings with thermally driven adsorption chillers for the plastic processing industries Hayo Angerer-Wachenfeld System Engineering November 19, 2015 Gent, Belgium

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InvenSor Adsorption Chillers …use waste heat for cooling

…are highly energy efficient: up to 90% electricity savings

…use water as a refrigerant

Welcome to Clean Cooling!

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InvenSor GmbH

Deutscher Kältepreis 2009 + 2012

German Federal Ministry for the Environment:

”Highly efficient cooling system“

Business activities: • Development • Production • Sales • System engineering • R&D

• Founded in 2006 • Headquarters in Berlin, Germany • 2 production sites in Germany

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• High electrical power consumption • High cooling demand • High energy & maintenance cost to

provide cooling • Long running hours

Ideal conditions for InvenSor

adsorption chillers! • Low electrical power consumption • Low maintenance cost • Short return of invest times

Why InvenSor for the plastic processing industries?

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Adsorption chillers in different capacity sizes • 10-300 kW cooling capacity • Highly energy-efficient: EER = 33 (LTC 30 e plus) • Driven by waste heat at 60-100ºC • Dry recooling is possible • Water as an environmentally-friendly refrigerant (R 718), ODP=0, GWP=0 • Adsorption unit maintenance-free • Silent operation

InvenSor Products: Adsorption Chillers

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Adsorption Chillers LTC and HTC

LTC 10 / 30 / 90 kW Low Temperature Chiller from 60ºC driving temperature (heat source) HTC 18 kW High Temperature Chiller >40ºC ambient temperature (dry recooling) 80ºC driving temperature (heat source)

• Built-in system controller in every chiller: all parameters adjustable • Hydraulic pumps included in chillers • All chillers prepared for online access • “ActiVac“ - automatic vacuum pressure optimization • High Efficiency mode (COP > 0.7)

10 kW / 18 kW

90 kW

30 kW

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ADsorption & ABsorption – Difference?

Adsorption Technology (liquid/solid) • Temperatures from 60°C can be used

Lower return flow temp. ideal for CHP • Robust technology: no turning off, no

crystallization, no corrosion • Dry recooling, low maintenance • Simple system design and installation • Compact unit incl. pumps, controlling, etc.

Absorption Technology (liquid/liquid) • Typically above 80ºC needed

High capacity losses at lower driving temperatures

• Crystallization risk: potential turn-off • Wet recooling: water treatment, hygiene

(legionella) • High maintenance needs of chiller (ie.

corrosion)

High design and maintenance efforts justified only for large capacity range

Plug & play systems with a stable performance

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Tri-generation

How does Trigeneration work?

Natural Gas

Electricity

Heat Cooling

CHP

100 kW 39 kW 60 kW

31 kW

InvenSor Chiller

Cooling Application

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Tri-generation

Does it work for me?

Natural Gas

Electricity

Cooling

CHP

100 kW 39 kW 60 kW

31 kW

InvenSor Chiller

Cooling Application

39 kW 11 kW

Compression Chiller EER 3,5

31 kW

Electricity

Cooling Electricity

100 kW at 4.5 ¢ /kWh = 4.5 €/h

∑ 42 kW at 19 ¢ /kWh = 8 €/h

Heat

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Tri-generation

When is Tri-generation a feasible option?

• Price for electricity (€/kWh) ≥ 3 x price for natural gas (€/kWh)

Additional benefits: • Replacing electrically driven chillers (refrigerants) • On-site generation of electricity • Reducing electrical peak loads • Free Cooling option • Future-proof refrigerant (R 718), ODP=0, GWP=0 • Reduced carbon footprint • National / local subsidies (i.e. 25% on invest in Germany, Bafa)

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Air Compressors as Heat Source

Air compressors are major electrical power consumers

• 94% of the energy may be recovered as heat

• This heat may be used to drive InvenSor chillers

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Possible Applications for Adsorption Cooling

Waste heat - CHP

Waste heat - CDA / compressed air

Using (waste) heat ... … for cooling

Industrial applications

Space cooling / Air conditioning

IT and server rooms

Waste heat - Processes

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• Home market: Germany

• About 400 units installed worldwide

Applications include:

• Light commercial

• data centers

• offices / seminar rooms

• shops, etc.

• Industrial cooling

• plastic injection moulding

• electroplating

• food processing, etc.

InvenSor References

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Reference Examples

Tri-generation for cutting fluid cooling

Motor manufacturing: Chilled water from compressed air heat recovery

Food processing: Chilled water from oven waste heat in cookie factory

Tri-generation for process cooling: Electroplating

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Thank You for Your Attention!

InvenSor GmbH Gustav-Meyer-Allee 25 13355 Berlin Germany Hayo Angerer-Wachenfeld hayo.angerer@invensor.de ph +49 30 46307-387 www.invensor.com Sales Partner Belgium: Transfolux S.A., Luxemburg Paul Kerkhofs p.kerkhofs@transfolux.com