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Reference Number EP/N508573/1
Title Two-Phase Polytropic Energy Storage
Status Completed
Energy Categories Other Power and Storage Technologies(Energy storage) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr W Rampen
No email address given
Sch of Engineering and Electronics
University of Edinburgh
Award Type Standard
Funding Source EPSRC
Start Date 01 May 2015
End Date 30 April 2016
Duration 12 months
Total Grant Value £115,737
Industrial Sectors Energy
Region Scotland
Programme Energy : Energy
Investigators Principal Investigator Dr W Rampen , Sch of Engineering and Electronics, University of Edinburgh (100.000%)
Web Site
Objectives Note this record is the EPSRC part of project, there is another part which is referenced via the InnovateUK record InnUK/102205/01
Abstract The University of Edinburgh team will work with engineers at Artemis Intelligent Power Ltd to design a compact grid-scale energy storage facility. The energy storage concept uses a polytropic compression and expansion in a Joule or Brayton cycle to convert mechanical work to heat, and back. For these processes it uses large, slow moving, piston machines, giving adequate time for heat exchange processes to occur with high efficiency. Secondary liquids are introduced into the working gas to absorb and reject heat, so that it can be transferred directly into unpressurised thermal stores (without recourse to large heat exchangers) - one very hot, the other very cold. All of the processes are theoretically fully reversible. Each process is being designed to occur with minimal losses, with the aim of equalling or exceeding the efficiency of pumped hydro storage. Artemis Digital Displacement machines provide the controllable wide motion ratios required to efficiently interface the high-speed electrical generators to the low-speed compressor expander machines such that constant power levels are maintained. This being a first phase programme, it is anticipated that the end goals of this 12 month project will be an outline design, system simulation model, some critical-path component development to verify performance prior to moving onto building a pilot energy storage facility
Publications (none)
Final Report (none)
Added to Database 16/07/15