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Event Details

Peter Lindstedt Lecture - Time Scales of Pollutant Formation

April 12 @ 3:30 PM - 5:00 PM - Mechanical Engineering Room 256

Peter Lindstedt, Professor of Thermofluids, Imperial College, London will be giving a lecture on Time Scales of Pollutant Formation on April 12, 2010 in Mechanical Engineering, Room 256.


Time Scales of Pollutant Formation-The emergence of new energy conversion technologies coupled with the optimization of more conventional modes of combustion leads to increasing demands on the accuracy and applicability of calculation methods. The classical fast chemistry analysis by Damköhler remains a common basis for topology related calculation methods aimed at turbulent reacting flows. The current talk begins with a brief review of the potential impact of changing requirements and subsequently investigates the accuracy of the relationship between implied flamelet structures and the actual chemical and flow time scales encountered in turbulent flames. The ability to predict the formation of CO and NO is discussed in this context with reference to the sensitivity to chemical kinetic effects and species lifetimes. Comparisons are also made with both laminar and turbulent flame data in order to explore how intrinsic chemical uncertainties translate to turbulent flames. The ability to predict fuel reformation characteristics, notably the formation of fine (nanoscale) carbon based particulates, also comes to the fore in the context of solid oxide fuel cell applications and some of the principal challenges are outlined. The talk ends with an assessment of the potential of calculation methods to reproduce flame stability and pollutant emissions characteristics under conditions with significant local or global extinction/ignition/re-ignition as can be expected in high performance applications.

Prof. Lindstedt received his M.Eng. Degree from Chalmers University of Technology, Sweden in 1981 and his PhD in Chemical Engineering from Imperial College in 1984. He joined the Department of Mechanical Engineering as Lecturer in 1987, following work as a Research Associate, was appointed Reader in 1996 and Full Professor in 1999, in 2000 he became Head of the Thermofluids Division, in 2004 Director of Research and in 2007 Deputy Head of Department. He serves on the Faculty of Engineering Research Committee, the Management Committee of the Graduate School for Engineering and Physical Sciences. He is the UK director on the International Board of the Combustion Institute, a Fellow of the Institute of Physics, served as Deputy Editor of Combustion and Flame from (2000-2010) and editorial board member for other leading journals. He frequently serves on technical programme committees for international conferences, such as the International Workshop on Combustion-Generated Fine Carbon Particles, held in Anacapri, 2007, the Colloquium co-chair (with Ron Hanson of Stanford University) for the 30th International Symposium on Combustion in 2004, which celebrated the 50th anniversary of the Combustion Institute. He has received a number of prizes and awards and his research interests are focussed on chemically reacting flows with current research sponsors including Toyota, BP Global Fuels Technologies, Department of Trade and Industry, Engineering and Physical Science Research Council, Office of Naval Research, Ineos Technologies, Air Force Office of Scientific Research, Commission of the European Communities (CEC) and Siemens Industrial Gas Turbines Ltd. In 2008 he also acted as a consultant to Hydrogen Energy International Ltd, Johnson Matthey Ltd, Siemens Industrial Gas Turbines Ltd and in the context of fuels for Motorsport applications.


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