The Clean Cycle
GE’s Clean Cycle* generator converts heat – from a variety of different sources – into electricity. The conversion process, called the Organic Rankine Cycle (ORC) requires no additional fuel input and produces no additional emissions.
The Clean Cycle solution builds on GE’s 100+ year legacy of innovative power generation technology and has demonstrated consistent, reliable performance on a multitude of heat sources and operating conditions. Below are a few key highlights of the technology:
Cleaner Energy: An average Clean Cycle containerized solution generates 100 kW of emission free, fuel free power, equivalent to the electricity use of 100 EU households.
Scalable: Units can be scaled from 50 kW net electrical output to greater than 1 MW by using multiple units.
Re-deployable: The Clean Cycle is heat source agnostic. It can run on – and even be moved to – just about any heat source of sufficient temperature and flow rate.
Plug and Play: The Clean Cycle solution arrives with generator, controls, power electronics, and software all built-in and ready to be paired to a heat source.
Reduced Maintenance: The turbine generator is on magnetic bearings and contained within a hermetically sealed unit, so there is no oil, lubricants, overhauls, or manned operation required.
Proven: More than 400,000 operating hours across a fleet of over 100 units in the field.
Features & Benefits
- One unit generates up to 140 kW of electricity (gross) from ~1 MW of heat input.
- Runs entirely on heat - no incremental fuel is required, and no additional emissions are generated.
- Increases the efficiency and output of reciprocating engines, gas turbines, and other power generators.
- Variable speed and power to run continuously on changing quantities of heat input.
- Power electronics automatically match the grid frequency, making it simple to sell the power or offset local power usage.
- Non-flammable, benign working fluid.
The experienced team in GE’s Distributed Power business has designed the Clean Cycle solution, which comes in pre-assembled modules, to be flexible for an array of heat sources yet standardized for simple installation. Below are the four standardized modules that are selected for the specific site requirements:
- The Heat
Capture Module (HCM) redirects the heat energy from the exhaust stream and
transfers it to a pressurized water loop, which then transfers heat to the Clean
Capture Module (HTM) is a pre-piped and assembled package that controls and
pumps the pressurized water from the HCM to the Clean Cycle generator.
- The Clean
Cycle skid is the heart of the complete heat to power package. The heat
delivered by the HTM turns the Clean Cycle’s working fluid into a pressurized
vapor. The vapor enters the Integrated Power Module (IPM), which generates electricity
that is conditioned by the power electronics on the Clean Cycle skid.
- The Heat
Rejection Module (HRM) completes the cycle by removing heat from the
working fluid and condensing it from vapor back into a liquid.
* Trademark of the General Electric Company