Energy for life - 122nd Presidential Address and 17th George Stephenson Lecture
Author: Baxter, John;
Published: 23 May 2007
Abstract
Various energy sources including: nuclear, oil, LPG, coal, wood, solar, hydro and wind are compared in terms of energy content and carbon dioxide emissions. A measurement of one barrel of oil (159 litres or 42 US gallons) is used to compare the various sources on an equal footing. Two charts are used throughout showing kilograms carbon dioxide emitted per barrel of fuel consumed, and the other showing energy content per barrel. It shows how it is misleading to promote electric power and hydrogen as clean energy sources for transport purposes as their production and transfer still requires the use of fossil fuels. The nuclear issue and the future requirements for this technology are discussed. Future developments such as solar, clean fossil fuels with carbon capture and biofuels are highlighted. Mention is given to BP’s solar business and their investment in the application of bio-science to energy problems. To conclude it is argued that we need energy sources with high output (such as oil, coal, nuclear etc) but with little to zero emissions and that the energy supply challenges faced by the world will be met by a diverse combination of nuclear, clean fossil, solar and biomass fuels. To achieve these changes, we will require more engineers who are willing to accept the challenge of the changing world. That the priority for the IMechE is the promotion of engineering as a career choice to existing and future engineers
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