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The freeze point of jet fuel must be reported accurately to ± 1.0 °C [10].
According to APU specifications the freeze point of Jet A-1 is required to be lower than − 47 °C with minimum viscosity.
For all three soils, rapid initial removal of soil from the jet footprint was followed by the growth of a nearly circular, clean region centred at the point of jet impingement.
A new analysis is presented for calculating the shape of the region cleared of soil by the point of jet impact moving around, or up and down a surface, which allows the resources (time, liquid, and energy) required to clean a cylindrical vessel to be estimated.
The new part of the model was designed to enable the calculation of the angle of the cutting head tilt so that the jet penetrating the material might exit it approximately along the normal to the material surface created at the point of jet axis entry.
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For the past 60 years the freeze point specification of jet fuel was considered the most important property to ensure that jet fuels in the market were fit for use.
Therefore, in this study the low-temperature viscosity and freeze point properties of jet fuels were investigated by variation of the linear to branched chain paraffin mass ratio, in conjunction with variation of the carbon number distribution according to a mixture by process variables experimental design.
Due to the restriction of low pressure (~ 6 Mpa), the smoking point of generated jet fuel did not reach the standard (≮ 25 mm); therefore, the jet fuel can be blended with other superior jet fuels.
The elongation rate for each segment of the jet keeps almost constant at a certain melt temperature, while the elongation rate increases and the solidification point of the jet shifts from the Taylor-cone to the target with increasing melt temperature.
Review of previous investigations reveals very high heat transfer rates at the stagnation point of the jet due to the very thin boundary layer at the stagnation point.
The heat transfer coefficient of the impinging flame was determined by measuring the heat flux in the stagnation point of the jet using an industrial heat flux sensor.
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