electricity generation from waste heat - dürr global … · electricity generation from waste heat...
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Ecopure® ORC: Electricity from waste heat
Organic Rankine Cycle (ORC) is a process for generating
electricity from waste heat. Compared to other similar
processes, small heat sources and low temperatures
are particularly suitable for ORC. With ORC technology,
unused thermal energy can be turned to profit! Good
examples of high-temperature heat sources include
gas motors or other combustion processes, while low-
temperature heat sources can consist of geothermal,
solar or industrial waste heat. Dürr continues to be a
leader in energy efficiency technology and systems.
We have invested decades in developing products and
services to optimize our customers’ energy consumption
and thus reduce or manage their operating costs. With
Dürr Cyplan, we are forging new ground in energy effi-
ciency technology.
Ecopure® ORC –Technology with Great Potential
100 kWel ORC system
We offer customized ORC solutions for various waste heat sources:
70 kWel 120 kWel 300 kWel 500 kWel
High-temperature systems
without heat utilization
Temperature heat source > 300 °C
Temperature cooling water 30–60 °C
Electrical efficiency 17–22 %
High-temperature systems
with heat utilization
Temperature heat source > 300 °C
Temperature cooling water 60–90 °C
Electrical efficiency 17–20 %
Low-temperature systems
without heat utilization
Temperature heat source 90–150 °C
Temperature cooling water 30–40 °C
Electrical efficiency 6–10 %
Connection of an Ecopure ® ORC system to a
high-temperature heat source
M
M
M
Exhaust-gas heat
Exhaust-gas counter-pressure30 - 60 mbar
Evaporator=Exhaust-gas heat exchanger
Turbogenerator
Condenser
Turbine
135 - 180 °CDepending on Sulfur content
Exhaust-heat coupling:Direct: No thermo oil circuit
HT-ORC-Modul
Silencer
Coo
ling/
heat
use
Stack
400 - 600 °C
G ~~
Incorporated into the Dürr know-how network
Dürr Cyplan not only features innovative and proven
technology, but also incorporates the dynamic engi-
neering, sales and service network of the Dürr Group.
Using these resources, from initial consultation through
engineering, manufacturing, to commissioning, Dürr
is able to develop custom ORC solutions for diverse
applications from a single, full service global source.
The next generation of ORC systems:
Innovations from Dürr Cyplan
Direct evaporation
• No thermal oil circuit
• Greater safety
• Better energy utilization
• Easy maintenance
Cogeneration
• Proven, inexpensive working fluid
for all temperature ranges
• Greater stability in operation compared
to silicone-based working fluids
• Further utilization of the waste heat
Ecopure® ORC –Efficiency meets Ecology
Organic Rankine Cycle (ORC) Technology
Hermetically sealed turbogenerator
• No additional lubricating circuit
• Swivel-mounted turbine support
for simple maintenance
• Greater efficiency through freely
selectable operating speeds
• Specifically engineered blades for high pressure
Combined recuperator/condenser
• Compact system design
• Minimal pressure losses
• Ideal heat transfer
Fully automatic operation
• Automatic start/stop
• Self-diagnostics
• Remote monitoring
Ecopure® ORC – Additional Benefits
• Rugged, wear-resistant construction
• Grid conformity
• Fully automatic operation and remote monitoring
• Trouble-free operation for more than 20,000
operating hours per system
• Low auxiliary power requirement
• Condensation heat can be utilized
Dürr Cyplan · www.durr.com
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ürr
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