• CO₂ – free electricity generation
• Attractive heat utilization concepts with high interest rates
• Initiator for subsidies and/ or tax reduction
• Reduction of energy costs through self-generation
• Greater efficiency with short payback times
• High electrical efficiency
• Increasing the profitability of power generation processes
• Optional utilization of condensation heat
• Utilization of high and low-temperature heat sources
• Protection of resources

First, heat flows from a heat source into the ORC module, via a heat transfer fluid (gas, steam, thermal oil, water). There, the working fluid is transformed into pressurized vapor using the thermal energy of the heat source. The pressurized vapor is led into a turbo generator, where part of its thermal energy is converted into electricity. The vapor is expanded in the turbine, generating mechanical energy, which drives a generator coupled to the turbine. Thereafter, the vapor is condensed by a heat extractor. A pump injects the liquid working fluid back into the evaporator, where it is vaporized again. The heat to power transfer loop is closed. The extracted heat may be used as useful heat (up to 95°C) for follow up processes.

The demand for controllable, flexible technologies for generating power, such as CHP units, is rising in response to the need to stabilize electrical grids and to compensate for fluctuations caused by renewable energy production. Our Cyplan® ORC technology is a proven, economical way of boosting efficiency in combination with stationary gas engines (CHP units), and its innovative Flex-Plus technology ensures flexible routine operation thanks to an intelligent plant control system and components that can be subject to varying loads. This means the Cyplan® ORC solutions are perfectly equipped to deal with the future increases in requirements in the electricity market as profitable power-generating heat exchangers for gas engines.

Cyplan® ORC-Technology offers solutions for various applications and in various sizes starting from 50 kW electrical output power. Dürr Cyplan® ORC modules comprise all necessary process equipment, including I&C, skid-mounted to be easily transported. The ORC systems are designed, engineered, fabricated and sold by Dürr Cyplan®. Standardized modules are available in various sizes, defined by electrical output: 50 kW, 70, kW, 120 kW, 250 kW, 350 kW, 500 kW and 1000 kW. Individual sizes are available on request. Dürr Cyplan® ORC modules are delivered completely preassembled and pretested to enable easy and quick on site installation and start up. Their robust, industrial design guarantees highest reliability and low maintenance.

The Cyplan® ORC- module is the most flexible and efficient energy converter for heat for smaller and medium-sized services.

Unique features:

• Fully automated operation
• Remote monitoring and control
• Modular compact module
• Easy to integrate
• Short installation times
• Easy and low maintenance
• Robust design
• Variable process interfaces
• Direct evaporation- favorable system integration and high efficiency
• Excellent part load behavior
• Hermetic turbogenerator
• No additional lubricating circuit (working fluid is lubricant)
• Ideal blades for high pressure conditions
• Greater efficiency through independent operating speed
• Swivel-mounted turbine support for simple maintenance

The Dürr Cyplan® technology approach offers the world’s most flexible ORC platform in a small to medium power range. Due to the excellent engineering know how and profound product design, various process integration solutions and interfaces can be realized.

Cyplan® ORC technology can be used to upcycle heat from various process medias including hot water, steam, thermal oil and hot gas. Both, high- and low-temperature heat sources, can be used for generating electricity. Beside the electrical power generated, the Dürr Cyplan® ORC can provide useful heat with temperatures up to 95 °C in high-temperature systems. This enables the systems to operate as combined heat and power generation plants with total efficiencies of over 95 % usage of the input energy.