VGB POWERTECH 7 (2021) - International Journal for Generation and Storage of Electricity and Heat

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Avoid cost-intensive oil change in a hydropower plant VGB PowerTech 7 l 2021
It’s all about the right oil mix
Fig. 2. Since 2018, VGB PowerTech Service GmbH offers all technical services of the VGB Group.
of the VGB Group bundled together. Here, tailor-made and individual solutions which are
characterised by efficiency and technical competence.
Aging test
Raumtemperatur 120°C 2 Tage 7 Tage 14 Tage 150°C 2 Tage 7 Tage 14 Tage
In the current case, the VGB Oil Laboratory
carried out tests which proved that blends
of suitable oil types allow the continued
operation of the plant without cost-intensive
complete oil changes. In these oil
blending tests, a temperature profile is
used to simulate several years of operation
and oil ageing (F i g u r e 3 ). Different
blend ratios also show how these oils could
possibly affect operation. A wide variety of
blends can be set, leading to the identification
of the optimum oil combinations for a
particular system.
Only a few national and international laboratories
have the know-how to carry out
such tests. One of the experts in this field is
the VGB Oil Laboratory, which, as an independent,
supplier-neutral service provider,
offers tailor-made support to VGB members
and customers. Thanks to the expertise
and experience of the laboratory team,
the operator of the particular hydropower
plant was able to save about 50 T€. In addition,
costs were saved that would otherwise
have been incurred for a complete oil
change.
Tailored support improves also the
environmental balance
Fig. 3. The laboratory team of VGB PowerTech Service GmbH has more than 30 years of experience
in the testing and the evaluation of lubricating and insulating oils. In addition to the
analysis of oils, the service team carries out interdisciplinary damage analyses and is also
on site for sampling, inhibition and support of oil changes.
In addition to the actual cost savings due
to the blending of oils, the CO 2 balance
of the operator is also improved. The production
of one litre of turbine oil, for example,
produces around 700 grams of CO 2 .
If now a complete oil change is avoided
by the blending tests carried out in the
VGB oil laboratory, the emission balance
is improved accordingly. In this respect,
the VGB oil laboratory also contributes
to the Corporate Social Responsibility
(CSR) of its customers, because sustainable
and resource-saving solutions are of
great importance for entrepreneurial action
in order to remain competitive in the
market.
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VGB-Standard
Atbilstības novērtējuma un darba aizsardzības prasību
savstarpējā iedarbība hidroelektrostacijās
Interaction of Conformity Assessment and Industrial Safety in Hydropower Plants
VGB-S-033-00-2017-07-LV (VGB-S-033-00-2017-07-EN/DE, English/German edition),
DIN A4, Print/eBook, 68 Pages, Price for VGB-Members € 140.–, Non-Members € 200.–, + Shipping & VAT
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VGB-Standarts
Atbilstības novērtējuma un
darba aizsardzības prasību
savstarpējā iedarbība
hidroelektrostacijās
Interaction of Conformity Assessment and
Industrial Safety in Hydropower Plants
VGB-S-033-00-2017-07-LV
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