Company Presentation

Infrafone Facts •  Infrafone increase the efficiency, availability and lifetime

of industrial boilers through infrasound soot cleaning technology

•  1000 installations (900 marine installations) world wide •  65 WtE & Bio fueled boilers in Scandinavia •  9 Coal fired boilers in Germany and USA •  ISO9001 certification •  Headquarters in Stockholm, Sweden •  Founded 1978

Infrafone History

The path towards unique knowledge

First installation: Hyltebruk, Sweden Paper mill, MgO boiler

1982 1984

First marine installation: M/S Rimula Steam boiler

Collaboration with ABB Sales focus on marine industry, steam boiler vessels

1982-1995 1995

Development of the first sound calculation program

First installation on W-t-E plant: Asahikawa and Obihiro, Japan Air Preheater and Economizer

New mechanical design: higher mechanical reliability and operation with compressed air. 1995

2001

2004 W-t-E plants: 4 installations Biofuel plants: 6 installations

New Paradigma: • High accuracy in the sound calculation program • High mechanical reliability • More acoustic power

2005

W-t-E: 30 boilers Biofuel: 35 boilers Coal: 9 boilers

2013

70’s

Infrasound, a physical phenomenon, which applications?

Infrafone Technology: Applications

Economizer

SCR Air pre-heater

ESP Ducts

500 °C > T > 140 °C Only cleaning method needed below

~260 °C

How does it work?

Sound creates oscillations in the flue gas

Increased turbulence in the flue gas

Formation of deposits is prevented.

Infrasound vs. audible sound

Infrasound vs. audible sound

Infrafone Technology

•  Our expertise and knowledge, the key to success

Acoustic modelling software

INPUT OUTPUT

• Dimensional and operational parameters of the boiler

• Acoustic power output • Frequency • Location

• Modelling of the boiler • Modelling of the infrasound behaviour in the boiler

Infrafone Technology •  Acoustic modelling, E.ON P14 Norrköping, Sweden

Acoustic modelling graph shown only at the conference

Infrafone Value Proposition

Reduced operational & maintenance costs –  Savings on operation of steam soot blowing and

shot cleaning –  The saved steam can be used for increased

production –  Savings on replacement of tubes thru extended life

time

Stable ΔP, which means: –  Less outages, higher energy production –  Less outages, more burned waste

Lower risk for high flue gas velocity in local areas

–  Savings on replacement of tubes thru extended life tube time

Sweden Mora, 8 MW Commissioning 2010 Infrasound cleaner: APM150 Cleaning area: Vertical downstream

economiser Fuel: Industrial/Household waste Performance: •  The boiler has been in operation since

early 2011 without any manual cleaning of the economiser.

•  The Δp is still low and stable. •  The differential temperature is still high and

stable. •  No other soot cleaning equipment installed.

Boiler 1, 2 & 3 Renova, Gothenburg 56 MW

Commissioning 2011 & 2011 Infrasound cleaner: APX2000 Cleaning area: External fin-tube economiser Fuel: Industrial/Household waste Performance: •  Has eliminated the need for shot cleaning. •  Differential pressure on a stable level. •  Cleaner working environment

Sweden

Boiler 1 & 2 SYSAV, Malmö, 29 MW Commissioning 2008 & 2009 Infrasound cleaner: 2 x APL1000, 2xAPX2000 Cleaning area: Vertical downstream evaporator

and economiser Fuel: Industrial/domestic waste Performance evaporator: •  Shot cleaning of the economiser has been turned off. •  Lower and more stable Δp over the economiser than with shot cleaning. •  The exhaust gas outlet temperature from the evaporator is lower and

stable. •  The soot deposits in the high temperature area (flue gas temp 680 oC –

600 oC) of the evaporator is softer and takes longer time to build up.

Sweden

Sweden P14, Norrköping, 75 MW Commissioning 2006, upgraded 2013 Infrasound cleaner: APX5000 2006-2012 APX7000 2013- Cleaning area: Vertical downstream

economiser Fuel: Industrial/Household waste Performance: •  Steam soot blowing reduced from 3-4 times/day

to 1 time/week. •  The differential pressure is now on a lower level

than with steam soot blowing running 3 times/day.

Norsaverket, Köping, 12 MW Commissioning 2009 Infrasound cleaner: 3 x APM150 Cleaning area: Vertical downstream

evaporator and 2 x eco Fuel: Industrial/Household waste Performance evaporator: •  Steam soot blowing eliminated for all but the first tube bundle •  Δp is lower than with steam soot blowing 3 times/day. Performance economiser: •  With the previously installed air cleaning lances flue gas temp increased rapidly. •  With infrasound technology installed, air cleaning lances were turned off and the Δp

and temperature are now on a stable low level the full season.

Sweden