Spontaneous ignition of gas turbine lubricants at temperatures below their standard auto-ignition temperatures

In order to determine how process conditions can influence minimum auto-ignition temperatures in gas turbine enclosures, and other industrial installations, a novel type of calorimeter has been developed at HSE's Buxton research laboratory. This instrument, a Spontaneous Combustion Calorimeter (SCC), has been used to investigate the ignition properties of pure substances, such as n-heptane and compare the results with minimum ignition temperatures determined using standard methods. This was followed by a more detailed investigation of the ignition of gas-turbine lubricants.

Source: http://www.hse.gov.uk/research/rrpdf/rr1076.pdf

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