Seminar by Dr. Gautham Kalghati

Mar 15 2015 03:00 PM - Mar 15 2015 12:00 AM


On Sunday, March 15, the Clean Combustion Research Center hosted a seminar by Dr. Gautham Kalghatgi, Principal Professional at Saudi Aramco and visiting Professor of Mechanical Engineering at the Imperial College of London. The seminar titled “A Simple Method to Predict Knock Using Toluene, n-Heptane and Iso-Octane blends (TPRF) as Gasoline Surrogates” was held from 3:00 to 4:00 PM at the lecture hall, Al Kindi (building 5), level 5.

The seminar had two parts. In the first part, Dr. Kalghatgi proved that octane scale based on PRF could be replaced by one based on TRF with supporting experimental data. In this, the gasoline is assigned a Toluene Number (TN), which is the volume percent of toluene in the TRF which matches the gasoline for knock in the ASTM RON test. Just one number, TN, will describe the knock behavior of a gasoline adequately at different operating conditions unlike RON or MON. The other advantage of such a scale is that it will enable a better quantitative description of fuels, such as ethanol mixtures, with RON > 100 and hence beyond the maximum of the current octane scale.

In the second part a method to define the composition of a TPRF to match both RON and MON of a target gasoline was presented.