POWER February 2020 - 47

RECIPROCATING INTERNAL COMBUSTION ENGINES
velopment, and it causes inconvenience
for resident populations. Fuel supplies
to such locations can also be subject to
unpredictable interruptions, thus making
the option to be able to switch to an alternative
fuel a huge advantage.
The same challenges are true for offgrid
industrial operations such as mining
locations. A reliable supply of power is
essential to productivity and, therefore,
also to the profitability of the operation.
When the lights go out and the machinery
shuts down, nothing works and nothing
is produced.
The Wärtsilä 31DF represents a sensible
means for alleviating these risks.
Its reliability is extremely high, thanks to
its wide load range with high part-load
efficiency. The two-stage turbocharger
enables more energy to be recovered
from the exhaust gases, resulting in significantly
enhanced engine efficiency.
What's more, the level of efficiency is
retained even in partial-load conditions,
and the engine can resist output derating
when operating in hot and humid
ambient conditions.
Not least, the engine's fuel flexibility
is an enormous plus in these situations.
If, for example, the engine is set to run
on gas and for whatever reason that gas
supply is suddenly cut off, it can switch
to diesel or heavy fuel oil without any
delay or shutdown of the power supply.
Similarly, it can be run on liquid fuels until
such time as gas becomes available.
Future-Proofing with a Modular
Design
One of the features that makes the Wärtsilä
31 engine family truly state-of-theart
is its modular design (Figure 2). This
modularity allows for easy conversions
from one fuel type to another, including
future fuels such as synthetic renewable
fuels. This makes customers ready
to adapt to all possible eventualities, regardless
of the type of fuel available.
" The beauty of the modular design
is that it's easy to remove a module
and replace it with another, without
any compromise whatsoever on the
power output or efficiency. This is why
modularity has been such a central feature
of the Wärtsilä 31 product family
since day one. What's more, there is
no difference in performance between
a product that has been converted and
one that was built for purpose from the
outset, " said Lehtonen.
Units can be converted one after another
while the plant continues operating
at full capacity throughout the converFebruary
2020 | POWER
ogy is a key enabler for a clean energy
future based on renewables.
Lifecycle Services
Wärtsilä first introduced its dual-fuel engine
technology in the 1990s, initially to
the maritime industry. The company has
since established itself as a global frontrunner
in dual-fuel power plant technology,
with a broad offering of solutions and
unrivalled capacity. Deliveries can range
from engine supplies and installation, to
full-scale engineering, procurement, and
construction (EPC) projects.
Customers can also benefit from
2. The modular design of the Wärtsilä 31 reduces
time spent on maintenance. The shift
from single parts to exchange units, such as
power units, injectors, and high-pressure fuel
pumps, enables easier and more efficient
maintenance work. Courtesy: Wärtsilä
sion. Future-proofing minimizes the effect
of unforeseen events or changes
that may happen down the road. Thanks
to the modular design, the Wärtsilä 31DF
can be adapted according to evolving requirements,
thereby making it absolutely
future-proof.
A 100% Renewable Energy Future
The introduction of the 31DF engine for
energy market applications is an important
next step towards the realization
of Wärtsilä's vision for a 100% renewable
energy future. The company's use
of the very latest digital technology
is inherent to its engine development
work, and the operation of the Wärtsilä
31DF engine can be adjusted online,
which is fully in line with the company's
support for online connectivity to
its power plant solutions.
With political and social pressure being
applied to utilities in the majority of
countries around the world, the need
to reduce emissions of harmful greenhouse
gases is increasing at a fairly
rapid pace. There is, therefore, greater
interest than ever before in integrating
solar and wind power into energy systems.
While this has been difficult and
not always viable in the past because of
the inability of traditional power plants
to balance energy input fluctuations,
Wärtsilä's fast-starting engine technolwww.powermag.com
Wärtsilä's
complete lifecycle approach,
which is aimed at ensuring the performance
and competitiveness of the
power plant. With a service network
with dedicated professionals in some
70 countries around the world, support
is seldom far away.
The lifecycle services include everything
from comprehensive customized
long-term service agreements (Wärtsilä
Lifecycle solutions), to product
support with parts, field service and
technical support, training, and performance
optimization including upgrades
and conversions.
All of Wärtsilä's Lifecycle solutions
can be customized to specific operating
profiles and requirements. The company
currently has more than 13 GW of power
plant capacity under long-term service
agreement. Wärtsilä operating and maintenance
agreements deliver, above all,
peace of mind to owners knowing that
they can concentrate on their core business
while the plant is being run at optimal
performance, safety, and efficiency.
The Wärtsilä 31 Engine Genset Family
The Wärtsilä 31DF is the latest addition
to the Wärtsilä 31 engine genset
family, which also includes the original
conversion-ready diesel version, and the
Wärtsilä 31SG, a spark-ignited pure gas
engine generating set that was launched
to the energy market in 2017.
As Lehtonen pointed out, " This is a
combustion engine offering that represents
the accumulation of years of
experience and in-house expertise built
up over decades. Dedicated research
and development work has resulted in a
generating set that delivers outstanding
efficiency, excellent reliability, and the
flexibility in fuel choice and operational
performance to meet the needs of power
producers well into the future. " ■
-Anders Smeds is product manager,
W3X Power Plants, with Wärtsilä.
47
http://www.powermag.com

POWER February 2020

Table of Contents for the Digital Edition of POWER February 2020

Contents
POWER February 2020 - Cover1
POWER February 2020 - Cover2
POWER February 2020 - Contents
POWER February 2020 - 2
POWER February 2020 - 3
POWER February 2020 - 4
POWER February 2020 - 5
POWER February 2020 - 6
POWER February 2020 - 7
POWER February 2020 - 8
POWER February 2020 - 9
POWER February 2020 - 10
POWER February 2020 - 11
POWER February 2020 - 12
POWER February 2020 - 13
POWER February 2020 - 14
POWER February 2020 - 15
POWER February 2020 - 16
POWER February 2020 - 17
POWER February 2020 - 18
POWER February 2020 - 19
POWER February 2020 - 20
POWER February 2020 - 21
POWER February 2020 - 22
POWER February 2020 - 23
POWER February 2020 - 24
POWER February 2020 - 25
POWER February 2020 - 26
POWER February 2020 - 27
POWER February 2020 - 28
POWER February 2020 - 29
POWER February 2020 - 30
POWER February 2020 - 31
POWER February 2020 - 32
POWER February 2020 - 33
POWER February 2020 - 34
POWER February 2020 - 35
POWER February 2020 - 36
POWER February 2020 - 37
POWER February 2020 - 38
POWER February 2020 - 39
POWER February 2020 - 40
POWER February 2020 - 41
POWER February 2020 - 42
POWER February 2020 - 43
POWER February 2020 - 44
POWER February 2020 - 45
POWER February 2020 - 46
POWER February 2020 - 47
POWER February 2020 - 48
POWER February 2020 - 49
POWER February 2020 - 50
POWER February 2020 - 51
POWER February 2020 - 52
POWER February 2020 - Cover3
POWER February 2020 - Cover4
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