Organic Rankine Cycle (ORC) Technology

Electricity Generation from Waste Heat

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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