wärtsilä improves power efficiency of gas engines with ... · wärtsilä was seeking ways to...
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Wärtsilä improves power efficiency of gas engines with Electric Turbo Compounding systems in Turkey
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RESULTS: “WÄRTSILÄ CASE STUDY 0302 BOWMAN POWER GROUP
ZeroOver
600 Accelerated payback on an entire power plant project
1.5%Over
650MWh
Over
12,200
additional free power generated
impact on engine operation and reliability
of free energy generated in total
trouble free engine shut-downs and start-ups
system running hours
Customer: Wärtsilä
Engine: Wärtsilä 34SG
Fuel type: Gas
We were looking for ways to improve the
efficiency of our plant. The Bowman ETC system
delivered on its promise, even when the engine
was run at part load.
Ozan Emre Erdoğan, Plant Chief Engineer
As Wärtsilä is committed to sustainability, and
providing environmentally sound products and services,
the company continually seeks new and creative
solutions to enhance its offer to customers.
Since the early 1990’s, Turkey has placed increasing
importance on its investment in technology, with
the Technology Development Foundation of Turkey
providing extensive support for industrial research and
R&D activities. Having a commitment to environmental
protection, the country is also working towards joining
the European Union Emission Trading Scheme to
further reduce its carbon footprint.
In 2011, Wärtsilä began working with
Bowman Power Group, in Bermeo, Spain,
to evaluate the effectiveness of Bowman’s
Electric Turbo Compounding (ETC) exhaust
recovery system.
Wärtsilä was seeking ways to improve engine efficiency
and deliver additional power output without increasing
fuel consumption. The trials in Spain demonstrated that
the ETC system would increase net power output by
1.4%, with no impact on engine operation.
Based on this success, in 2012 Wärtsilä’s Energy
Solutions division challenged Bowman to prove the
long-term performance of the system over a 4,000
hour trial in Tirenda, Turkey, with rigorous durability
tests carried out on a 9MW Wärtsilä 34SG engine,
in a Wärtsilä operated power plant.
Typically, the Bowman ETC system is integrated on
engines in the 200kW to 1.2MW range. The Tirenda
trial offered a new challenge for the Bowman team,
to demonstrate system performance on a much
larger engine.
WÄRTSILÄ CASE STUDY 0504 BOWMAN POWER GROUP
COUNTRY AND SECTOR PROFILE
THE CHALLENGE
Wärtsilä is a global provider of power
solutions for the power industry, and marine,
gas and oil sectors, with customers in over
170 countries. The company is a leader in the
energy sector, with a strong focus on engine
optimisation and technological innovation.
• Maintain performance
over 4,000 hour
trial period
• Demonstrate system
performance with
zero impact on
engine operation
• Demonstrate ETC system
capability to automatically handle
multiple system shutdowns and
start-ups in tandem with engine
operation, i.e. no intervention
required with ETC system
• Consistently deliver
an increased power
output of 1% or more
KEY CUSTOMER REQUIREMENTS:
The Bowman system,
bespoke design for
off-engine integration.
The system recovers exhaust gas which is normally lost
through the exhaust outlet, and generates additional
usable electricity, thereby improving the overall
efficiency of the engine.
Prior to integration, baseline engine efficiency data was
gathered by the Bowman team, and the ETC system
was installed on a Wärtsilä 34SG engine in March 2013.
The system has generated over 650MWh of additional
free energy, with zero increase in fuel consumption.
This equates to an extra 1.5% additional power,
significantly increasing overall power plant efficiency.
As a result of the long-term trials, Wärtsilä has
calculated that the combination of the Bowman system
with the company’s engines will accelerate the payback
on an entire power plant project, where engines are
in operation for more than 2,000 hours per year. The
two companies have developed an extensive project
pipeline to supply in excess of 1.3GW of stationary
power capacity over the next two years, with several
production orders currently in hand.
WÄRTSILÄ CASE STUDY 0706 BOWMAN POWER GROUP
THE SOLUTION
THE RESULTS
Wärtsilä required an off-engine solution, so
the Bowman engineering team designed a
bespoke application in which the ETC system
is housed within a frame, and connected via
a valve system to the engine.
To date, (October 2019) the Bowman
system has been in continuous operation
for over 12,200 hours, and automatically
handled more than 600 engine shut-downs
and start-ups without impact on system
performance or reliability.
Final stages of installation,
with the Bowman system
connected to the Wärtsilä
34SG via a bespoke
valve system.
GET IN TOUCHTo find out more about Bowman’s ETC
technology, or talk to our Business
Development team, contact us via:
Telephone: +44 (0)23 8023 6700
Email the team: [email protected]
Visit the website: www.bowmanpower.co.uk