Hi, I’m John.
Dr John Evans is a technical safety engineer with over 30 years experience working in the energy sector both for operators and consultancies. He has provided safety support for traditional and renewable energy projects from concept through design to operations ensuring regulatory compliance and good industry practice are met.
Dr John Evans is forward thinking and innovative and willing to go back to fundamental principles to develop a detailed understanding of the problem to support the development of robust pragmatic solutions. He has published multiple scientific papers and presented at international conferences.
Dr. John Evans has extensive experience in safety and risk engineering techniques has over 30 years experience in working in these fields. John has worked on projects from the world assessing the hazards and risks for the exploration, production, extraction, transportation and processing of oil and gas including LNG and CNG, and has identified, developed and supported the implementation of control, mitigation and management systems. He has also supported assessments for alternative energy systems including hydrogen and ammonia and has worked on multiple carbon capture and storage projects.
John has extensive experience in safety and risk engineering techniques and has been involved in the management, development, conduct, data analysis and interpretation of large scale fire and explosion studies that have been used within the industry to develop and validate computer models. This gives Dr. Evans an understanding of the hazards presented from hydrocarbon releases and how to mitigate and manage those hazards in a practical way. As well as understanding the hazard Dr Evans has experience in the control and mitigation of hazards using active and passive techniques and also controls and management procedures.
John has provided technical support for ongoing operations by undertaking regulatory compliance reviews, reviews of safety systems, Evacuation Escape and Rescue assessments, justification for modifications to safety systems, operational risk assessments, independent workforce consultation and incident support services.
John has been involved in assessments for the inclusion of new equipment with existing assets, feasibility studies for new assets, cost benefit analyses, input during the design stages and the preparation and updating of safety assessments, required standards of performance and safety management systems.
John also has experience of operational management including facilities management, QA and management and development of HS&E management systems.
John has provided expert review and analysis for a number of incidents that have occurred in the offshore industry under legal direction. These have included developing of an understanding of the events surrounding the incident, the impact and potential consequences of the incident and mitigations in place.
Selected Papers and Publications
J. Taylor, J.A.Evans “Case Study of a Methodology to Assess the Localised Heat-Up of a Vessel from a Pipe Connection in a Fire Event”, Hazards 35, Birmingham
P. Williamson, J.A. Evans “Case Study of Ammonia Pipeline Release Modelling”, Hazards 35, Birmingham
J. A. Evans, V Nicolette, B. Vickers “Comparison of the Heat Load from Hydrogen Jet Fires Impacting on a Target Using Different Computational Fluid Dynamics Modelling Techniques”, Hazards 34, Manchester
J. A. Evans “Hazard Assessment of Energy Storage Systems with a Focus on Hydrogen and Hydrogen Derivatives”, Hazards 33, Birmingham
L. Herbert, J.A Evans, I. Scanlon and Laszlo Komaromi “Guidance on vulnerability review and assessment for safety and environmental critical equipment to control escalation risks on atmospheric storage tank sites”, Hazards 32, Harrogate
J. A. Evans, P. Johnson and S. Wyse “CFD CO2 Modelling”, Hazards 32, Harrogate
D.M. Johnson, R. Crewe, G. Boaler and J.A. Evans “Review of the Current Understanding of Hydrogen Jet Fires and the Potential Effect on PFP Performance”, Hazards 31
R.P. Cleaver, P.M. Cronin, J.A. Evans and I. Hirst, Nov 2001, “An experimental study of spreading liquid pools”, Hazards XVI, Manchester.
T. Tanaka, T. Azuma, J.A. Evans, P.M. Cronin, D.M. Johnson and R.P. Cleaver, “Experimental study on hydrogen explosions in a full-scale hydrogen filling station model”, International Conference on Hydrogen Safety, Pisa, Italy, October 2005.
G. Hankinson, B.J. Lowesmith, J.A. Evans and L.C. Shirvill, “Jet Fires Involving Releases of Crude Oil, Gas and Water”, Trans IChemE, Part B, Process Safety and Environment Protection, 2007, Vol 85 (B3): 221-229.
M.A. Persaud, L.C. Shirvill, A. Gosse and J.A. Evans, “Emissivity Measurements of Steel Exposed to a Jet Fire”, Eurotherm Seminar on Heat Transfer in Radiating and Combusting Systems - 2 Saluggia, Italy, 5th-7th October 1994.
B. Lowesmith and J. Evans, “Advantica at Spadeadam”, Industrial Safety Management, Vol 4, (Ed 4), Dec 2002.
J.A. Evans, “Uptime: Integrity Data Management”, Eighteenth International Congress: Innovation Technologies for Oil-Gas Industries, Energy and Communication, St. Petersburg, Russian Federation, 3rd-6th September 2008.
Examples of work areas where John has extensive experience include:
Compliance assessments such as:
Review of compliance against the PFEER regulations
Escape, Evacuation and Rescue Assessments (EERA)
Temporary Refuge fire risk assessment and impairment assessment
Combined Operations support
Safety Case Preparation and Safety Case Thorough Reviews
Operational and project support including:
Readiness Reviews
Compliance Audits
Risk Assessment
Option selection including assessment of risks due to safety, costs, environmental impact, reputation
Performance Standard Development
Basis of Design Development
Assessment of passive fire protection, including requirement for fire protection, cost benefit analysis and justification for and management of passive fire protection