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Projects: Projects for Investigator
Reference Number 2003-4-42-2-0
Title Freepower 6 demonstration program
Status Completed
Energy Categories Other Power and Storage Technologies(Electric power conversion) 100%;
Research Types Applied Research and Development 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 15%;
ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 85%;
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr M Biddle
No email address given
Freepower Ltd
Award Type 3
Funding Source Carbon Trust
Start Date 01 December 2003
End Date 30 January 2005
Duration 14 months
Total Grant Value £150,233
Industrial Sectors
Region South West
Investigators Principal Investigator Dr M Biddle , Freepower Ltd (99.996%)
  Other Investigator Project Contact , Summerleaze (0.001%)
Project Contact , EDF Energy (0.001%)
Project Contact , Tecno Risorse srl, Italy (0.001%)
Project Contact , Biomass, NewEnCo (0.001%)
Web Site
Objectives The purpose of this project is to build 5 FP6 Organic Rankine Cycle systems, and ship them to testing collaborators who will evaluate the installation and operational parameters. One unit will be retained at Freepower for endurance testing, and to modify and evaluate from information received from the 5 test units in the field. Each machine will be tested rigorously in a different environment, using a different waste heat source from the other systems in the test.
Abstract Freepower has spent the last six years developing a novel method of producing electrical power from low grade (150?C upwards) waste heat from any source, be it engine exhaust, flare stack, central heating boiler, industrial process, oven, geothermal heat, or sun. The Freepower system will run on any of these sources without modification; when run on heat provided from renewable sources (landfill gas, biomass, geothermal) the electricity is genuinely renewable and when run on heat from other sources it provides energy efficiency enhancement. In both cases, since the system burns no fuel and has no emissions it comes within the clean energy mechanism To date, a number of systems have been built and tested ranging from a 200W 2% efficient system to a 6kWe 11% efficient system that is the subject of this programme. During the last six years Freepower has developed turbine and heat exchanger design software that is specific to its working fluids and low temperature needs. Ithas designed and built its own high speed alternator and electronic controller system, and has a design specific grid inject system that is applicable globally, allowing flexibility for one design to apply to all regulatory standards. AC or DC output is available, and six patents have been lodged, with a further two pending. FP6 has a two-stage turbine and an environmentally benign working fluid (HFE) running at 11 bar to give 11% efficiency. This machine will be used to develop a larger120kW 17.5% efficient (FP120) system as a cost-effective, commercially engineered product
Publications (none)
Final Report (none)
Added to Database 01/01/07