Measured and Calculated Results

Particle size distribution calculations (19,27) have illustrated that modifications in the more standard methods for evaluating the integral dispersion equation are necessary in order to achieve good comparison between measured and calculated results. 

The comparison between measured and calculated results for vapor-liquid equilibria in aqueous systems of weak electrolytes confirms the applicability of van Krevelen 1s method for moderate temperatures and concentrations. The comparison also indicates that the procedure of Edwards, Maurer, Newman and Prausnitz yields reliable results also at temperatures around 100 °C therefore, it may be expected that it is also useful at higher temperatures where experimental material, necessary for checking that procedure, is not available... 

All of the above comparisons of measured and calculated results have been for polystyrene. 

A comparison between measured and calculated results is given in Table 1.20. Values in the temperature range from 1200 to 3200 K are compared for single crystals and polycrystalline tungsten in Table 1.21. 

The measurement and calculation results (Table 24.4) clearly reveal that efficiency of the whole system is higher in the case of a HRS. The difference is significantly big, up to 25%. It becomes bigger in higher temperatures of the reference point. Higher efficiency for HRS is mainly due to a lower temperature of flue gases. The surface losses are also lower, because of a smaller surface area of burner units and pipes in comparison with a recuperative system. 

The main data as well as obtained measured and calculated results are summarized in table 4 .3. 

Figure 6. Comparison between measured and calculated results of depth and depth-averaged velocity.

Figure 4.1 shows that higher operating temperatures and lower gas velocities lead to speed up of self-heating which can be seen by the increase of the temperature difference between inlet and outlet. Furthermore it can bee seen that the accordance between measurements and calculation results is excellent. 

The results for k jj at the Best Bm values and the calculated and measured values for reflector savings x are shown in Table I. The measured and calculated results iat p and are shown in Table n. 

Table 1.11 shows measured and calculated results of the surge impedance of a horizontal conductor. It is clear that the proposed formula shows more accuracy than Carson s. The accuracy of the proposed formula increases as x/h decreases, corresponding to the characteristic of the inductance. A similar observation has been made in different measurements in Reference 44. 

Switching surge waveforms on a 500 kV untransposed horizontal line, (a) Test circuit = 83.212 km (line configuration Figure 1.22). (b) Measured and calculated results, (c) Analytical waveforms corresponding to (b). 

Comparison of the measured and calculated results for phase a energization, (a) Sending-end voltages and (b) receiving-end voltages. 

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