Hal 1XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Heat PumpsReducing Losses – Increasing Efficiency

Hermann HalozanGraz University of Technology

XV EUROPEAN CONFERENCE MILANO 6th-7th JUNE 2013 CSG

Latest Technology in Refrigeration and Air Conditioning Under the Auspices of the PRESIDENCY OF THE COUNCIL OF MINISTERS

Hal 2XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 3XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 4XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

80% of CO2 emissions in EU is caused by energy consumption

ENERGY

Global warming

Security of supply

20% less primary energy

20% less CO2 emissions

20% share of renewable

energy

Economy

Less dependence, more efficiency:

why heat pumps are key to an Energy Efficient World

Hal 5XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Carnot, Sadi (1796-1832)

Hal 6XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 7XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 8XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 9XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 10XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 11XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 12XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 13XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 14XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 15XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 16XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 17XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 18XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

THX

THX

COND COND COND

EVAP EVAP EVAP

COND/EVAP

HPCOMP

LPCOMP

HPCOMP

LPCOMP

SPCOMP

HEAT PUMP WITHTWO-STAGE COMPRESSION

HEAT PUMP WITHECONOMISER

HEAT PUMP WITHREFRIGERATION CASCADE

two-stage compression economizer cascade

Hal 19XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 20XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 21XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 22XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 23XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 24XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 25XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 26XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Two-phase Thermosyphon

tube wall

liquid layer

vapor

Q_cond

Q_evap

adiabaticsection

g

Q0

Q0

Hot Water

CO2 Heat Pipe

Refrigerant Condenser

CompressorThrottle

Refrigerant Evaporator / CO2 Condenser

CO2 Thermosyphon

Hal 27XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 28XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Hal 29XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

600

500

mtoeyr

400

300

200

100

1980 1990 2000 2010 2020

DistrctHeating

HeatPumps

Solar

500

500

500

1980 1990 2000 2010 2020

Industry

Residentral & Commercial

Transportation

Non Energy Uses

mtoeyr

Strategy Study of the IEA 1980

Hal 30XV European Conference Latest Technologies in Refrigeration and Air Conditioning Milano, June 6 – 7, 2013

Low-carbon energy technology roadmaps