more than 20 years pioneering in infrasound 1. 2 more than 20 years of continuous development and...
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1More than 20 years pioneering in infrasound
2More than 20 years pioneering in infrasound
• More Than 20 Years of Continuous Development and Research.
• More Than 20 Years of Commitment With Quality and Efficiency.
• Worldwide Patent Protection
• Leaders of the Marine Sonic Cleaning Sector.
More Than 20 Years of Pioneering in Infrasound
3More than 20 years pioneering in infrasound
Agenda
• Infrasound Characteristics
• The Product
• The Engineering
• The Service
• The Results
• Case Studies
4More than 20 years pioneering in infrasound
How It Works• Sound waves are sinusodial
• Molecules in the gas flow oscillates
• Small particles oscillate with it
The Results• Prevents soot accumulation and creation of big flakes
• The soot particles follows the gas flue out through the chimney
Infrasound Technology
5More than 20 years pioneering in infrasound
Operation range of Infrafone
Infrasound Technology
dB
Frequency range of the audible sound
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Infrasound Characteristics
• Long Wave-Length– Far Reaching
• Omni Directional– Spread in All Directions
• Low Absorbtion– Reflected
Infrasound Technology
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Effect: Frequency Dependence
Frequency 20 Hz 300 HzWave Lenght 17 m 1.13
Absorbtion 3 % 56 %
Displacement(Particle Movement)
5.5 mm 0.55 mm
Infrasound Technology
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Conclusion:
Infrasound enables a much better cleaning effect!
Infrasound Technology
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System Description• Sonic Cleaner
– Attached on the gas duct
• Feedback System– Sends Sound Pressure signal to Control
Box
• Pneumatic System– 6-8 bar compressed air– 0.3 nm3/sec air consumption
• Control System– Insonating 5 sec– Pause time 5 minutes
The Product
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The Sonic Cleaner
• Resonance Chamber – Enables tuning of frequency
• Pulsator– Generates air pulse
• Resonance Tube & Diffuser– Amplifies the sound wave
Resonance Chamber
Pulsator
Resonance Tube
Diffuser
The Product
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The Pulsator
• Reliable System– Only piston and spring in motion– Limited need of spare parts
• Material Chosen To Withstand Tough Conditions
– Spring: Hot treated titanium
– Piston: Aluminum with polymeric cover
The Product
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Sound Calculations
The Engineering
• Input Data– Design of gas duct– Design of boiler– Amount of gas flow– Temperature of gases
• Output Data– Sound pressure– Particle Velocity
M/s Pa
Makes it possible to focus the cleaning effect on specific areas, i.e the boiler
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The Service
Infrafone Representatives
GOLTENS
HARRIS PYE
HARRIS PYE
GOLTENS
SAAB MARINE
Together with our representatives we can offer service all over the world
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The Results
• Boilers are kept clean• Catalysts are kept clean• Gas uptakes are kept clean• Soot on deck is eliminated• Water washing and soot blowing is eliminated
or radically reduced• Lifetime of boilers etc is prolonged• Soot fires are eliminated
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Reference Customers
Infrafone has more than 1000 units in operation.
The demand has never been greater than today.
Today several shipowners include Infrafone Sonic Cleaners in their makers list.
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Japanese Ship Owner
Reference Customers
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Japanese Ship Owner
Reference Customers
Vessel A Vessel B
A study was performed to find out the cleaning effect by using sonic cleaner.
Vessel A was equipped with Infrafone, while Vessel B wasn’t.
Proven effectivness resulted in 16 installations on PCC, VLCC and Container Vessels. Another 15 installations are prepared for 2005.
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Japanese Ship Owner
Reference Customers
Vessel A Vessel B
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Wallenius Lines
Reference Customers
M/s Titus
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M/s Titus
Reference Customers
Type of vessel: Car Carrier
Main engine: B&W 8S 60MC, 20 000HPS
Boiler: Vertical composite boiler - Aalborg Exhaust gas section: 1600 kg/h Oil fired section: 2000 kg/h
Fuel: IF 380, Sulphur content <2.5%
Infrafone sonic cleaners: 1 pcs AP150 on exhaust side. 1 pcs AP 70 on oil side.
Sister Vessel Don Juan bought the same system in 2004
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Cunard
Reference Customers
Queen Elizabeth II
22More than 20 years pioneering in infrasound
Queen Elizabeth II
Reference Customers
Type of vessel: Cruise ship
Main engine: 9 pcs MAN/B&W Type 58/64 4 stroke 11.116 MW (15165 hp)
Oil Fired Boilers: 2 x Sunrod Type CPH-250 rating 25000 kg/hr at 7 bar
Exhaust gas boiler : 9 x Sunrod, Model Type 1 rating 4000Kg/hr at 7 bar
Fuel: IF 380 SLS Sulphur content < 0.5%
Infrafone sonic cleaners:9 x AP100 after the main engines and 2 x AP30 after the oil fired boilers.
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Birka Cruises
Reference Customers
Birka Princess
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Birka Princess
Reference Customers
Type of vessel: Cruise Ferry
Main engine: 4 pcs Wärtsila Vasa 12V-32
Auxiliary engine: 3 x Wärtsila 6L-32, 1x1/L-32
Boiler: Rauma Reppola
Catalyst reactor: Siemens x 7
Fuel: IF 280 SLS Sulphur content < 0.5%
Infrafone sonic cleaners: 4 x AP150 after the main engines 3 x AP15 after the aux. engines.
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Birka Princess
Reference Customers
“Since the installation of Infrafone in 1999 we have not water washed the boilers again. Infrafone keeps both boilers and catalysts clean. It is doing a good job.”
Johan Grunér, Chief Engineer - Birka Princess
In 2004 Birka’s new vessel Paradise was equipped with 10 Infrafones.
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Kuwait Oil Tanker Company
Reference Customers
Al Salheia
27More than 20 years pioneering in infrasound
Al Salheia
Reference Customers
Type of vessel: Crude Carrier
Main engine: Hyundai Sulzer 7RIA84T-B, 36960 BHP at 74 rpm
Boiler: Greens / TEI
Fuel: IF 380
Infrafone sonic cleaners: 1xAP1000 after the Main Engine
Sister Vessel Al Sheigaya was equipped with with the same type of Infrafone Sonic Cleaner.
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Al Salheia
Reference Customers
“The Exhaust Gas Boiler in the uptake with Infrafone was inspected on arrival in Singapore and pictures were taken. There is no accumulation of soot, i.e. Infrafone is doing its job well.”
V. Vibhute, Chief Engineer Al Salheia
A. Tewari, Master Al Salheia
June 2003
KOTC has chosen Infrafone to be on their makers list, 10 installations are expected during 2005 and 2006