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- W173391082 abstract "An observation is presented regarding the chemical freezing during a slow calorimeter cooling, after the combustion of solid propellants with excess fuel elements into a vacuum. The residual combustion gas within the calorimeter, mainly consisting of CO2, CO, H2O, H2 and N2, although cooled down to the room temperature, presents a chemical composition that meets almost exactly the value encountered at a very high temperature, namely around 1674±36°K. It appears abnormal that, during the very slow cooling which follows the isochoric combustion, when any chemical freezing seems mostly improbable, such a freezing occurs however. With utmost regularity, the gases refuse completely to follow the equilibrium below this high 1700K limit. The fact is known at much lower temperatures for the isobaric combustion with oxygen in excess, still there are doubts that it had been previously observed for calorimeter products involving the entire water-gas reaction. Numerical simulation of combustion and nozzle expansion processes got a high accuracy level when this process was included in the computational codes. Recent temperature measurements confirm with good accuracy that this freezing temperature is well below the maximal combustion temperature within the calorimeter, but still very high. Detailed investigations are envisaged through the national grant proposal INTECH by a consortium of professional research teams." @default.
- W173391082 created "2016-06-24" @default.
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- W173391082 date "2008-11-07" @default.
- W173391082 modified "2023-09-26" @default.
- W173391082 title "Plenary lecture IX: unexpected high temperature chemical freezing during slow isochoric cooling" @default.
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