Optimisation of Oxyfuel PF Power Plant for Transient Behaviour

Lead Research Organisation: Imperial College London
Department Name: Dept of Mechanical Engineering

Abstract

WP3 Cost Benefit Analysis (Activity Leader: Imperial College) It is recognised that plant configurations that optimise overall efficiency may not be optimal in terms of operational flexibility (e.g. the ability to change load rapidly in response to grid requirements). A cost benefit analysis for oxyfuel plant flexibility in different markets will concentrate around the scope for (a) a flexible oxyfuel power plant to generate additional value (revenue) under a range of representative market conditions and (b) the scope for the corresponding CO2 storage systems to accommodate such flexibility (and possible technical and financial implications for power plant operation). This work will draw on a growing body of experience at Imperial College in this area being built up as part of ongoing DTI and TSEC projects. These financial benefits for flexibility will be compared against any estimated additional investment requirements or increased operating costs.

Publications

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Related Projects

Project Reference Relationship Related To Start End Award Value
DT/F007116/1 01/07/2008 28/02/2010 £97,876
DT/F007116/2 Transfer DT/F007116/1 01/05/2010 31/12/2010 £48,572
 
Description A market based overview is given for flexible and transient operation in carbon capture electricity generation in a low carbon electricity system. Mechanisms for economic valuation of flexibility are explored for profitable and secure provision electricity supply in a demand driven network. An overview of financial mechanisms for valuing flexibility under current UK market conditions is presented. Analysis of international markets is also provided to indicate other mechanisms which may work to value the transient operations of low carbon technologies is given.
A first-order assessment of equipment requirements, costs and potential revenues from transient operation of an oxyfuel plant is provided using liquid oxygen storage as an example mechanism for rapid and gradual flexible operations. This provides information about indicative storage vessel sizing for current UK ancillary service requirements, as well as longer term transient operations when the rest of the plant is turned down to a part loading, producing a fraction of its potential full load electricity output. Indicative flow rate requirements for liquid oxygen are also given which provide an indication of possible response times and equipment sizing.
Exploitation Route The IEA anticipates an 88% growth in coal demand for electricity generation by 2030, with over 1400GWe of new capacity. Most of the new capacity will be based on advanced supercritical pulverised coal-fired technology that will be required to be capable of capturing CO2 during its lifetime. Electricity generation companies are currently considering carbon capture options for plant planned to be ordered; it is expected that such plant will be built with "capture-ready" features. A preliminary estimate of the world market for carbon abatement technologies for coal is £1,500Bn over the period 2025 to 2050 based on market estimates by country/region for new build and retrofit projects. This is consistent with IEA estimates and Gleneagles G8 targets.
The commercialisation of new technologies to mitigate the effects of coal-fired power generation on global CO2 emissions gives rise to considerable opportunities to those organisations in a position to exploit such technologies. Assuming a 10% share of the market is secured by UK companies the potential market is estimated at over £150Bn and will bring benefits that far exceed the costs of the proposed development programme. Being in a position to be first to market offers the best chances of maximising the market opportunities.
Sectors Energy,Environment,Government, Democracy and Justice

 
Description EPSRC
Amount £1,737,735 (GBP)
Funding ID EP/G062153/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start  
 
Description EPSRC
Amount £1,737,735 (GBP)
Funding ID EP/G062153/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start  
 
Description EPSRC
Amount £209,094 (GBP)
Funding ID EP/G06315X/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start  
 
Description EPSRC
Amount £209,094 (GBP)
Funding ID EP/G06315X/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Academic/University
Country United Kingdom
Start