1

NCC Ost

NürnbergMesse, Arbeitstitel, Datum

Chillventa CONGRESS 2018

INDUSTRIAL HEAT PUMPS IN AUSTRIACurrent status and future potential

V. Wilk, A. Arnitz, R. Rieberer

ENERGY USE IN AUSTRIA

Statistics Austria, STATcube – Statistische Datenbank von STATISTIK AUSTRIA, Nutzenergieanalyse 2016 (useful energy analysis), access 23.03.2018

Final energy consumption in Austria in 2016: 1 121 042 TJ

HEAT PUMP POTENTIAL IN AUSTRIA

406/11/2018

Statistics Austria, STATcube – Statistische Datenbank von STATISTIK AUSTRIA, Nutzenergieanalyse 2016 (useful energy analysis), access 23.03.2018

INDUSTRIAL HEAT PUMPS:

NOW AND THE FUTURE

Hartl et al. Österreichische Technologie- und Umsetzungsroadmap für Wärmepumpen, Berichte aus Energie- und Umweltforschung Nr. 8/2016, im Auftrag des

Bundesministeriums für Verkehr, Innovation und Technologie, June 2016

EXAMPLESFood, metal, plastics, power plants…

6

Production of meat and sausages

FOOD INDUSTRY

• F. Krainer

• AMT Kältetechnik GmbH

• CO2 heat pump

• 2018

• Cooling capacity: 600 kW

• Heating capacity: 800 kW

• Heat source: brine, -6°C

• Heat sink: hot water for cleaning

purposes, 60°C

7

Further details: D. Kraxner, AMT Kältetechnik GmbH, www.amt-kaelte.com

Dairy

FOOD INDUSTRY

• Berglandmilch eGen / Tirol Milch Wörgl

• Joint project with Stadtwerke Wörgl

• Installed by Frigopol in 2015

3 heat pumps with a total

• cooling capacity: 3.2 MW

• heating capacity: 4.2 MW

• Heat source: flue gas condensation and

chillers, up to 45°C

• Heat sink: 78°C, for district heating

8Photo: Frigopol Hochtemperatur-Wärmepumpen, http://www.frigopol.com/wp-content/uploads/54b8ce0cdfdd6.pdf

Further details: A. Baumhakel, Frigopol Kälteanlagen GmbH, www.frigopol.com

Brewery

FOOD INDUSTRY

• Puntigamer

• C&P Immobilien AG

• KELAG Energie&Wärme GmbH

2 heat pumps with a total heating capacity

of 1220 kW (Frigopol, installed in 2018)

• Heat source: ammonia chiller,

14-25°C

• Heat sink: 46 and 75°C, residential area

(Brauquartier Puntigam)

9Photo: https://www.puntigamer.at/brauereifuehrung/#lg=1&slide=6, 30.05.2018

Koglbauer, Zanker, District heating by heat recovery from the brewing process of the brewery Puntigam, ISEC 2018, Graz, p118-124.

Rolling Mill

METAL INDUSTRY

• Steel and rolling mill Marienhütte GmbH

• Energie Graz GmbH & Co KG

2 heat pumps (Friotherm) with a total

heating capacity of 11 MW

• Heat source: process waste heat

(cooling baths)

• Heat sink: district heating at 70 and

95°C, residential area (Graz City center

and Reininghaus)

10Photo: http://www.energie-graz.at/energie/fernwaerme/projekte/reininghaus , 10.05.2017

Unger, H., 2018, Energiemodell Reininghaus – Abwärmeauskopplung Marienhütte durch Energie Graz, Technischer Kurzbericht

Injection moulding

PLASTICS INDUSTRY

• Bergs Kunststofftechnik GmbH

• Ochsner Energietechnik GmbH

1 heat pump with a total heating capacity of

110 kW (2010)

• Heat source: process waste heat

(cooling water), 10-20°C

• Heat sink: 60°C, heating applications

11Further information: K. Ochsner, Ochsner Energietechnik GmbH, Ochsner-Straße 1, 3350 Haag

Wien Energie

POWER PLANTS

Power Plant Simmering (installed capacity

of 1.2 GWel / 1 GWth)

Start up by end of 2018

2 heat pumps with a total heating capacity

of 27-39 MW

• Heat source: cooling circuit of the power

plants, river water also possible, 6-27°C

• Heat sink: district heating, up to 95°C

12C. Segalla, Power 2 Heat Anwendungen für das Fernwärmenetz, Großwärmepumpenforum Vienna, May 2018.

Biomass cogeneration plant Klagenfurt East

POWER PLANTS

• Bioenergie Kärnten

• SOLID

• Riegler & Zechmeister

Absorption heat pump with a total heating

capacity of 20 MW (Ebara, installed in 2017)

• Heat source: Flue gas condensation,

45/35°C

• Heat sink: district heating, 60/70°C

• Driving temperatures: 130/120°CPhoto: https://www.solid.at/de/referenzen/absorptionswaermepumpe

Link: www.bioenergie-kaernten.at

Further information: M. Jeilter, Riegler & Zechmeister GmbH,

M. Schuber, S.O.L.I.D, Gesellschaft für Solarinstallation und Design GmbH

Heat sources:

• waste heat from chillers: ca. 30°C

• waste heat from process cooling (cooling water): ca. 50°C

• waste water: 20 – 40°C, also contaminated

• off gas: 60 – 80°C, high humidity, contaminated

Heat demand:

• process water: 50 – 80°C

• steam: 105 – 210°C

• air preheating, feed water preheating

Capacity:

• up to the MW range

WHERE TO USE HEAT PUMPS IN INDUSTRY?

14

Planning process of industrial heat pumps:

• interaction of multiple stakeholders

Optimization of industrial sites:

• interaction of multiple heat suppliers, storages and consumers

• design optimization

• operation optimization

Method development:

• dynamic simulations: interaction of heat pump and process

• mathematical programming: complex and dynamic systems, discontinuous

processes

RESEARCH QUESTIONS:

PROCESS INTEGRATION

1506/11/2018

INDUSTRIAL HEAT PUMPS:

NOW AND THE FUTURE

Hartl et al. Österreichische Technologie- und Umsetzungsroadmap für Wärmepumpen, Berichte aus Energie- und Umweltforschung Nr. 8/2016, im Auftrag des

Bundesministeriums für Verkehr, Innovation und Technologie, June 2016

WHY USING HEAT PUMPS IN INDUSTRY?

CO2 AND ENERGY COST REDUCTION

CO2 emissions electricity = 300 g/kWh, gas = 249 g/kWh, gas price= 3.8 ct/kWh, electricity non-household > 150 GWh/a = 5.4 ct/kWh, 20–70 GWh/a = 8.8 ct/kWh

Challenges:

• refrigerants

• temperature resistant materials

• heat sources with high temperatures

• pressure recovery

Requirements:

• reliability

• short payback time

RESEARCH QUESTIONS:

HIGH TEMPERATURE HEAT PUMPS

1806/11/2018

• Develop viable solutions for upgrading idle waste heat streams to

process heat streams at higher temperatures up to 160C

• Key elements of the solution are three advanced high

temperature vapour compression heat pumps

=> two closed loop heat pumps for air drying processes and

=> one open loop heat pump for steam driven drying processes

DRYFICIENCY

19

The project has received funding from the European Union’s Horizon 2020 programme for energy efficiency and innovation action under grant agreement No. 723576.

INCREASE OF COP WITH EJECTOR

20

Layout with EjectorStandard layout

G. Drexler-Schmid et al.: Messung und Simulation einer 50 kW Butan-Hochtemperaturwärmepumpe mit Ejektor, DKV Tagung Kassel 2016.

THANK YOU!

Dr. Veronika Wilk

Sustainable Thermal Energy Systems

AIT Austrian Institute of Technology GmbH

Giefinggasse 2 | 1210 Vienna | Austria

veronika.wilk@ait.ac.at