Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Professor of Fire Science



+44 (0)20 7594 7036g.rein Website CV




Ms Serena Dalrymple +44 (0)20 7594 7029




614City and Guilds BuildingSouth Kensington Campus





Guillermo is Professor of Fire Science at the Department of Mechanical Engineering of Imperial College and Editor-in-Chief of the journal Fire Technology.

He is a motivated lecturer, enthusiastic about the education of the next generation of engineers, and passionate about outreach in engineering.

His research is centred on heat transfer, combustion and fire science. The purpose of his work is to reduce the worldwide burden of accidental fires and protect people, their property, and the environment.

His research portfolio is ample, but over the last 15 years he is best known in three areas:  1) how polymers and wood ignite so we can avoid fires from starting; 2) how engineers can design better structures that resist fire; and 3) how wildfires spread and how to flight them.

He leads the research group Imperial Hazelab, which currently counts with 3 postdocs and 12 PhD students. The group is funded by a range of sponsors, most notably Arup, BASF, EPSRC, and the European Research Council (2015 Consolidator Grant).

He is also affiliated to the Grantham Institute for Climate Change and the Environment, and to the Institute of Molecular Science and Engineering. He has substantial collaborations in research and teaching with other departments, like  Department of Civil Engineering, and Department of Physics.

He has been featured in international media (e.g. Financial Times, BBC Radio, New York Times). Most recently, he appeared in the 2017 documentaries 'Titanic: the New Evidence' and 'The Great Fire of London: In Real Time'.


He was born in Madrid (Spain) and studied Mechanical Engineering at University of California at Berkeley (MSc 2003, PhD 2005), and before than at ICAI Universidad Pontificia Comillas (Ingeniero Industrial, 1999). Guillermo joined Imperial College in 2012 from a previous academic position at the School of Engineering of the University of Edinburgh (2006-2012).

Selected Publications

Journal Articles

Hadden R, Alkatib A, Rein G, et al., 2014, Radiant Ignition of Polyurethane Foam: The Effect of Sample Size, Fire Technology, Vol:50, ISSN:0015-2684, Pages:673-691

Huang X, Rein G, 2014, Smouldering combustion of peat in wildfires: Inverse modelling of the drying and the thermal and oxidative decomposition kinetics, Combustion and Flame, Vol:161, ISSN:0010-2180, Pages:1633-1644

Vermesi I, Roenner N, Pironi P, et al., 2016, Pyrolysis and ignition of a polymer by transient irradiation, Combustion and Flame, Vol:163, ISSN:0010-2180, Pages:31-41

Rackauskaite E, Hamel C, Law A, et al., 2015, Improved Formulation of Travelling Fires and Application to Concrete and Steel Structures, Structures, Vol:3, ISSN:2352-0124, Pages:250-260

Bal N, Rein G, 2015, On the effect of inverse modelling and compensation effects in computational pyrolysis for fire scenarios, Fire Safety Journal, Vol:72, ISSN:0379-7112, Pages:68-76

Turetsky MR, Benscoter B, Page S, et al., 2015, Global vulnerability of peatlands to fire and carbon loss, Nature Geoscience, Vol:8, ISSN:1752-0894, Pages:11-14

Rios O, Jahn W, Rein G, 2014, Forecasting wind-driven wildfires using an inverse modelling approach, Natural Hazards and Earth System Sciences, Vol:14, ISSN:1561-8633, Pages:1491-1503

Huang X, Rein G, Chen H, 2015, Computational smoldering combustion: Predicting the roles of moisture and inert contents in peat wildfires, Proceedings of the Combustion Institute, Vol:35, ISSN:1540-7489, Pages:2673-2681

Bal N, Rein G, 2013, Relevant model complexity for non-charring polymer pyrolysis, Fire Safety Journal, Vol:61, ISSN:0379-7112, Pages:36-44

Hadden RM, Rein G, Belcher CM, 2013, Study of the competing chemical reactions in the initiation and spread of smouldering combustion in peat, Proceedings of the Combustion Institute, Vol:34, ISSN:1540-7489, Pages:2547-2553

Stern-Gottfried J, Rein G, 2012, Travelling fires for structural design-Part II: Design methodology, Fire Safety Journal, Vol:54, ISSN:0379-7112, Pages:96-112

Leach SV, Rein G, Ellzey JL, et al., 2000, Kinetic and fuel property effects on forward smoldering combustion, Combustion and Flame, Vol:120, ISSN:0010-2180, Pages:346-358

Rein G, 2009, Smouldering Combustion Phenomena in Science and Technology, International Review of Chemical Engineering, Vol:1, Pages:3-18

Belcher CM, Yearsley JM, Hadden RM, et al., 2010, Baseline intrinsic flammability of Earth's ecosystems estimated from paleoatmospheric oxygen over the past 350 million years, Proceedings of the National Academy of Sciences of the United States of America, Vol:107, ISSN:0027-8424, Pages:22448-22453

Rein G, Cleaver N, Ashton C, et al., 2008, The Severity of Smouldering Peat Fires andDamage to the Forest Soil, Catena, Vol:74, ISSN:1872-6887, Pages:304-309

Jahn W, Rein G, Torero JL, 2011, Forecasting fire growth using an inverse zone modelling approach, Fire Safety Journal, Vol:46, ISSN:0379-7112, Pages:81-88

Rein G, Cohen S, Simeoni A, 2009, Carbon emissions from smouldering peat in shallow and strong fronts, Proceedings of the Combustion Institute, Vol:32, ISSN:1540-7489, Pages:2489-2496

Rein G, Fernandez-Pello AC, Urban DL, 2007, Computational model of forward and opposed smoldering combustion in microgravity, Proceedings of the Combustion Institute, Vol:31, ISSN:1540-7489, Pages:2677-2684

Lautenberger C, Rein G, Fernandez-Pello C, 2006, The application of a genetic algorithm to estimate material properties for fire modeling from bench-scale fire test data, Fire Safety Journal, Vol:41, ISSN:0379-7112, Pages:204-214

Belcher CM, Mander L, Rein G, et al., 2010, Increased fire activity at the Triassic/Jurassic boundary in Greenland due to climate-driven floral change, Nature Geoscience, Vol:3, ISSN:1752-0894, Pages:426-429

Cowlard A, Jahn W, Abecassis-Empis C, et al., 2010, Sensor Assisted Fire Fighting, Fire Technology, Vol:46, ISSN:0015-2684, Pages:719-741

Rein G, Lautenberger C, Fernandez-Pello AC, et al., 2006, Application of genetic algorithms and thermogravimetry to determine the kinetics of polyurethane foam in smoldering combustion, Combustion and Flame, Vol:146, ISSN:0010-2180, Pages:95-108

Colella F, Rein G, Torero JL, et al., 2011, A Novel Multiscale Methodology for Simulating Tunnel Ventilation Flows During Fires, Fire Technology, Vol:47, ISSN:0015-2684, Pages:221-253

Law A, Stern-Gottfried J, Gillie M, et al., 2011, The influence of travelling fires on a concrete frame, Engineering Structures, Vol:33, ISSN:0141-0296, Pages:1635-1642

Rein G, Torero JL, Jahn W, et al., 2009, Round-robin study of a priori modelling predictions of the Dalmarnock Fire Test One, Fire Safety Journal, Vol:44, ISSN:0379-7112, Pages:590-602

Jahn W, Rein G, Torero JL, 2012, Forecasting fire dynamics using inverse computational fluid dynamics and tangent linearisation, Advances in Engineering Software, Vol:47, ISSN:0965-9978, Pages:114-126

MacPhee SL, Gerhard JI, Rein G, 2012, A novel method for simulating smoldering propagation and its application to STAR (Self-sustaining Treatment for Active Remediation), Environmental Modelling & Software, Vol:31, ISSN:1364-8152, Pages:84-98

Bal N, Rein G, 2011, Numerical investigation of the ignition delay time of a translucent solid at high radiant heat fluxes, Combustion and Flame, Vol:158, ISSN:0010-2180, Pages:1109-1116

Colella F, Rein G, Verda V, et al., 2011, Multiscale modeling of transient flows from fire and ventilation in long tunnels, Computers & Fluids, Vol:51, ISSN:0045-7930, Pages:16-29

More Publications