engine & gen-set controls save fuel and reduce emissions - Deif

engine & gen-set controls
E
save fuel and reduce emissions
– optimise your power management system
Marine
$

As the diagram indicates, if an application features more than two
diesel generators, DEIF’s method is by far the most fuel-efficient.
temperature-dependent cool-down
Our power management systems measure the temperature of the
cooling water directly by means of a sensor. As a result, the time it
takes to cool down the engine depends only on the real temperature
of the engine and not on a fixed timer. This can save up to 40 running
hours per year for each diesel generator.
Cost savings with an optimized pow
How to save costs by optimising your power management
Optimised load dependent start/stop
DEIF’s power management solutions will sav
load dependent start/stop calculations.
optimised load-dependent start/stop
DEIF’s power management solutions will save up to 30% of your fuel
compared to traditional load-dependent start/stop calculations.
Traditional method (80 %)
P kW (max. 5340)
Optimised method (175 kW)
4500
Start DG 6 (>4275 kW)
4200
T
th
m
The green area in the diagram to the right shows the amount of
fuel you will save by using DEIF’s method for load-dependent start
calculation. The red area shows the load-dependent start function
using traditional methods of calculation.
Start DG 6 (>3560 kW)
Start DG 5 (>2848 kW)
3900
3600
3300
3000
Fuel saved!
Start DG 5 (>3385 kW)
Fuel saved!
‘a
th
tr
automatic change of priority
Our power management systems will automatically
activate the optimum combination of available diesel
generators – depending on the actual load situation on
the busbar. This feature is very useful for applications
using diesel generators that differ in size.
Main busbar 400V AC, 50Hz
GB1 GB2 GB3
Diesel generator 1
1000kW
G1 G2 G3
Diesel generator 2
1000kW
efficient harbour operation
When your vessel is docked, there are three possibilities of
saving fuel and reducing both smog and CO 2 emissions:
• Shore connection operation
• Harbour generator operation
• Ship-to-ship supply
Diesel generator 3
500kW
Load
Start DG 4 (>2136 kW)
Start DG 3 (>1424 kW)
Start DG 2 (>712 kW)
2700
2400
2100
1800
1500
1200
900
600
300
Start DG 4 (>2495 kW)
Fuel saved!
Start DG 3 (>1605 kW)
Fuel saved!
Start DG 2 (>715 kW)
Main busbar 400V AC, 50Hz
Temperature dependent cool-down
Measuring the cooling water temperature dir
GB1
GB2
GB3 SGB
cooling down delay time is controlled depend
Load
G1 G2 G3
Automatic change of priority
Diesel generator 1 Diesel generator 2 Diesel generator 3
750kW
750kW
750kW
Operating with different sized diesel generat
Shaft generator
1500kW
time and any given load.
A
fe
‘a
e
The power management system will
automatically activate the optimum
combination of available diesel generators –
depending on the actual load situation on the
busbar.
shaft generator operation
The vessel’s fuel consumption can be reduced significantly through longterm
operation of the shaft generator. In heavy load situations, long-term
parallel operation of diesel and shaft generator will reduce your vessel’s
fuel consumption further.
Main busbar 400V AC, 50Hz
Shaft generator operation
GB1
GB2
GB3 SCB
The vessels fuel consumption can be reduce
shaft generator. In heavy load situations, for
Load
and shaft G1 generator G2 will G3 reduce your vessel’s
Diesel generator 1
750kW
Diesel generator 2
750kW
Diesel generator 3
750kW Shore

educe your service and maintenance hours
Our power management solutions are based on the latest
fuel-efficient technology. As a result, our solutions will not
only allow you to cut your consumption of fuel – you will
also be able to contribute to reducing harbour smog and CO 2
emissions. Moreover, as your engines will have fewer running
hours and require less service and maintenance from the
engine manufacturers, additional expenses for service and
maintenance hours will also drop.
Minimise your down-time
Our in-house type-tests ensure an absolute minimum of downtime
for applications featuring our products. In order to maintain
a consistently high level of quality, all of our products are tested
before being shipped to their destination. The tests are part of an
Automatic Test Sequence (ATS) from which all data is stored.
Subsidiaries
Distributors
training for your operators
Even the best technology needs skilled operators for optimum
performance. That is why we have set up modern training
centres in our subsidiaries and outlets across the world. In our
hazard-free and controlled facitilities, you can simulate a wide
range of fault conditions and receive realistic hands-on training
under professional guidance.
Want more information?
To find out more about our optimised power management
solutions, please contact Edzard Janssen, ej@deif.com.
For further information about our global training programme
please contact Lene Foged, lfo@deif.com.
You can also read more on www.deif.com.

Founded in 1933, DEIF has more than 75 years of experience. Today,
we are active on the international markets for engine & gen-set con-
trols, marine bridge instrumentation, switchboard instrumentation
and renewable energy controls.
It is our ambition to maintain and expand our position as one of the
most trusted suppliers within our fields of operation. This goal will
be reached by ensuring that DEIF continues to offer real competitive
advantages to our customers by supplying superior product quality, the
best and most flexible features and competitive pricing.
DEIF A/S · Frisenborgvej 33 · DK-7800 Skive · Tel.: +45 9614 9614 · Fax: +45 9614 9615 · info@deif.com · www.deif.com
04.01.2010_A