Thesis-2013-Mogire.pdf (48.97 MB)
Microstructural characterisation if high temperature oxidation of boiler materials for coal fuelled power plants
thesis
posted on 2013-09-23, 07:58 authored by Evans O. MogireDue to the projected increase in global electricity demand, it is estimated that nearly 1400GW
of new coal fired power plants will be built providing about 38% of global electricity demand in
2030. This growth will have a negative impact on the environment through the emission of
CO2, a greenhouse gas detrimental to the climate, unless stringent emission targets for the
coal fired power plants are put in place. This has resulted in placing more emphasis on the
need for adopting the best available technologies for ‘new built’ plants or through retrofit of
existing plants or the construction of high efficiency power plants with CO2 capture and
storage technologies. The high efficiency power plants are mainly achieved by operating the
boilers at higher temperatures of up to 700°C compared to the conventional power plants
operating at ~ 565°C. This expected temperature increase will have an effect on the material
degradation mechanisms of both the existing and proposed new alloy materials for the critical
components of the boilers, that is, headers, superheaters, reheaters and wall membranes.
This thesis explores the material degradation mechanisms associated with the high
temperature oxidation and/or corrosion of the alloy materials found in these components. [Continues.]
Funding
The Energy Programme, which is a Research Councils UK cross council initiative led by EPSRC and contributed to by ESRC, NERC, BBSRC and STFC, and specifically the Supergen initiative [Grants GR/S86334/01 and EP/F029748] and the following companies; Alstom Power Ltd., Doosan Babcock, E.ON, National Physical Laboratory, Praxair Surface Technologies Ltd, QinetiQ, Rolls-Royce PLC, RWE npower, Siemens Industrial Turbomachinery Ltd. and Tata Steel
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Publisher
© Evans MogirePublication date
2013Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.Language
- en