Page 92 - Industrial Plant 2020

However, the electricity pays better in the evening,
when it is in demand, rather than during the day. For
this reason the Electric Companies seeks ways to
accumulate the solar energy, at least part of it, for later
use, so to be able to improve the dispatchability of
green electricity and increase the overall economics.

ET Sun Energy™

to the implementation of a GPU (gas processing unit)
at DeNovo Energy Ltd. facility in Trinidad and Tobago.
GPU is a complex industrial technique, used to
separate components from raw natural gas for different
downstream processes. The composition of the natural
gas extracted from the wells depends on the type,
depth, and location of the reservoir, and the geology of
the area. As natural gas can be used as feedstock for ET Sun Energy™ Thermal Energy Storage for
different processes, including liquefaction or fuel, its Andasol III Solar Power Plant _ Spain
treatment is required in order to remove impurities and
water.
DeNovo Energy Ltd., a company incorporated in Thanks to the massive experience gained in the design
Trinidad and Tobago, was created with the vision of an and implementation of molten salts and thermal oils
independent upstream company for monetising systems used in the chemical and petrochemical
stranded natural gas reserves for the benefit of the complexes, Eurotecnica has been involved in the
country. development of Thermal Energy Storage (TES)
systems, following the concept of transferring by
means of a heat exchanger part of the heat of the
thermal oil to the molten salts, that finally accumulate
Technologies - into large storage tanks.
Thermal Energy Storage (TES) At evening hours, the flow is reversed. The molten
salts, passing through the heat exchanger, release the
The Concentrating Solar Power (CSP) plants are heat to the same thermal oil that flows into the steam
innovative utilities that produce electricity from green boilers, so to keep the steam turbine and the power
and renewable resources. CSPs make use of parabolic block at full capacity.
troughs, which concentrate the sunlight in tubular The extraordinary performance of Andasol-3 TES
devices where a transfer fluid (thermal oil) is heated up system, based on Eurotecnica’s proprietary ET Sun
to about 400° C. In a standard configuration, 100% of Energy™ technology and recently implemented in the
thermal oil flows into boilers where the steam is Spanish region of Andalusia, has set a new standard
produced and used to drive the steam turbine, and for safety, reliability and profitability within a promising
finally operate the power block. industry.

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