%0 Journal Article %1 Brindley:2001 %A Brindley, J. %A Griffiths, J. F. %A McIntosh, A. C. %D 2001 %J Chemical Engineering Science %K Accidental Autoignition Combustion Heat Hot Mathematical Modeling Numerical Safety Temperature Theoretical distribution explosion ignition model simulation spot study transfer %N 6 %P 2037--2046 %R http://dx.doi.org/10.1016/S0009-2509(00)00429-2 %T Ignition phenomenology and criteria associated with hotspots embedded in a reactive material %U http://www.sciencedirect.com/science/article/B6TFK-42MN6HT-3/2/d6882d2fb25e08f7f3b67b5f908e6852 %V 56 %X A numerical study is presented of the phenomenology of ignition, and initiation of combustion waves, in a model representing a spherical power source embedded in a concentric spherical volume of combustible material of relatively low exothermicity. For simplicity, one-step chemistry is assumed, and diffusion of oxygen or gaseous products is neglected. The results show unexpected behaviour for small-sized power sources, in which, over a range of source radii, there are two distinct critical values for the power, with an apparently safe region occupying some of the range between them. Possible safety implications for chemical plant operation are discussed.

@article{Brindley:2001, abstract = {A numerical study is presented of the phenomenology of ignition, and initiation of combustion waves, in a model representing a spherical power source embedded in a concentric spherical volume of combustible material of relatively low exothermicity. For simplicity, one-step chemistry is assumed, and diffusion of oxygen or gaseous products is neglected. The results show unexpected behaviour for small-sized power sources, in which, over a range of source radii, there are two distinct critical values for the power, with an apparently {\em{safe}} region occupying some of the range between them. Possible safety implications for chemical plant operation are discussed.}, added-at = {2010-01-05T23:12:10.000+0100}, author = {Brindley, J. and Griffiths, J. F. and McIntosh, A. C.}, biburl = {https://www.bibsonomy.org/bibtex/2952e504d9b436205ee74aa8ddf479a4e/sjp}, doi = {http://dx.doi.org/10.1016/S0009-2509(00)00429-2}, interhash = {4e8581476674910f6a966d915c265c2b}, intrahash = {952e504d9b436205ee74aa8ddf479a4e}, journal = {Chemical Engineering Science}, keywords = {Accidental Autoignition Combustion Heat Hot Mathematical Modeling Numerical Safety Temperature Theoretical distribution explosion ignition model simulation spot study transfer}, month = {March}, number = 6, pages = {2037--2046}, review = {This is the reference which triggered the hotspot project and connection with Leeds Uni. Contains the Z shaped curve for critical power vs hot spot size with a possible region where with increasing power there might be a region without propagation of bulk combustion.}, timestamp = {2010-01-19T17:39:44.000+0100}, title = {Ignition phenomenology and criteria associated with hotspots embedded in a reactive material}, url = {http://www.sciencedirect.com/science/article/B6TFK-42MN6HT-3/2/d6882d2fb25e08f7f3b67b5f908e6852}, volume = 56, year = 2001 }