Magnetic temperature profile

SL/RN Process. In the SL/RN process (Fig. 4), sized iron ore, coal, and dolomite are fed to the rotary kiln wherein the coal is gasified and the iron ore is reduced. The endothermic heat of reduction and the sensible energy that is required to heat the reactants is provided by combustion of volatiles and carbon monoxide leaving the bed with air introduced into the free space above the bed. The temperature profile in the kiln is controlled by radial air ports in the preheat zone and axial air ports in the reduction zone. Part of the coal is injected through the centerline of the kiln at the discharge end. The hot reduced iron and char is discharged into an indirect rotary dmm cooler. The cooled product is screened and magnetically separated to remove char and ash. 

Thermal conduction was previously discounted as an energy source since many believed it was easy to suppress. However, new work by Narayan Medvedev (2001) showed that for a sufficiently chaotic magnetic field, the conductivity can be as as high as 20% of the Spitzer value. Applied to a sample of ten clusters, Zakamska Narayan (2003) found that such thermal conduction could explain the observed gas density and temperature profiles for only... 

The magnetization pattern shows the same reduction onset temperature of about 300°C, The magnetization first rises rapidly, then increases more slowly, after which the slope again becomes steeper. At the end of the temperature profile imposed in TMA, the magnetization rises steeply, and with decreasing temperature it gradually comes to its value at room tempera-... 

The effects of the magnetic parameter and the viscoelastic parameter on the longitudinal and transverse velocities are discussed. The influences of the Prandtl number, the magnetic parameter and the heat source/ sink parameter on the temperature profiles are presented. As far as the entropy generation number is concerned, its dependence on the magnetic parameter, the Prandlt, the Reynolds, the Hartmann numbers and the dimensionless group are illustrated and analyzed. 

Both the above-described assumptions seem to provide a qualitatively satisfactory description of the order parameter s continuous temperature profile in LCEs. It is likely that, in real systems, the two mechanisms go hand in hand. However, the remaining questions are which one prevails and can the properties of LCEs be tailored so that either the heterogeneous or the supercritical nature is promoted Only recently, has this ambiguity been satisfactorily resolved by combining nuclear magnetic resonance and high-resolution calorimetry [3,4]. It is the purpose of this chapter to discuss the approach used in these studies, with particular emphasis on an analysis of the experimental NMR data. 

Fig. 7. Thermomagnetic recording, (a) A focused laser beam generates a thermal profile in the magnetic layer, (b) The coercive force in the layer is reduced and its magnetisation can be reversed by a small magnetic field, here 30 kA/m. At room temperature, the coercive force is high and the written domains are...

Batch adsorption experiments were performed at a constant temperature (20 2°C) on a magnetic stirrer nsing 100 mL erlemnayer flasks. In bath experiments, adsorption time, particle size of adsorbent, adsorbent amonnt, pH profile, and adsorbent/ liquid ratio were performed to determine binding properties of adsorbent for the Cu + ions. The concentration of the metal ions in solntions before and after adsorption was measnred with an AAS. 

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