EFFICIENCY INCREASE FOR ORC POWER PLANTS
Ref-No: TA-B76094
Bayerische Patentallianz GmbH
BACKGROUND
ORC plants can be used for electricity production in multiple applications. Their
potential is tremendous for converting industrial waste heat and renewable
energy sources into electricity (geothermal heat, solarthermal heat and biomass).
The ORC concept is similar to a conventional Clausius-Rankine process. Instead
of water, an organic working fluid is used, which offers high conversion
efficiencies already at low temperatures.
Commercial products are available in different load ranges and manufacturers
can be found in countries all over the world. However, investment costs for this
technology are still relatively high. Cheaper and more efficient concepts are
therefore promising options for advantages on the market. The investment for
the condenser in an ORC power plant is generally high. In order to reduce costs,
or to maximize efficiency an optimized condensation concept is desired.
089 5480177-0
[email protected]
www.baypat.de
DEVELOPMENT STATUS
Feasibility
PATENT SITUATION
PCT pending
SOLUTION
The invention can be combined with any heat exchanger applied as a
condenser and is based on an optimized integration of this condenser
into the plant
The de-superheating of the working medium operates continuously by
means of an injection cooling; the condenser operates then entirely in
the 2-phase region. The application of the measure leads either to a
reduced condenser size or a reduced condensation pressure
The invention can be adapted in novel products by manufacturers or as a
retrofit in existing plants
A novel product has lower costs and can either be sold cheaper or with a
larger profit margin
www.inventionstore.de
CATEGORIES
//Environmental
engineering //Electric power
transmission //Energy engineering
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Picture: Air condenser for ORC (© Chair for Energy Systems, Wieland, 2016)
SCOPE OF APPLICATION
Target group: Operators and manufacturers
Applications: Retrofit or integration in commercial products
Benefit: Higher electricity output and cheaper production costs/larger
profit margin
Market: For industrial waste heat in Germany: 65 PJ/a (T>150°C)
SERVICE
Developmental Status
Readiness level: Simulations; Proof-of-concept in test rig is planned
TUM LES is interested in realizing a retrofit (especially promising for
plants with high feed-in tariff)
Offer
Cooperation, license, option, purchase,
world-wide, exclusive
www.inventionstore.de
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