C Gas Phase Compensation Static; Dielectric Constant Of Steam; Example With Steam: Resulting Error In The Gas Phase; Factors - ABB LWT300 Series User Manual

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A p p E N D I X C
Gas phase compensation static factors
The following tables explain provide the necessary gas phase compensation (GPC) static factors.

Dielectric constant of steam

Temperatrure
°C °F 1 bar
14.5 psi
100 212 1.005806
120 248 1.005227
152 306 1.004476
180 356
1.003950
212 414 1.003458
264 507 1.002840
311 592 1.002418
366 691
1.002036

Example with steam: resulting error in the gas phase

Gas phase Temperatrure
°C
Steam 100
(water vapor)
120
152
180
212
264
311
366
2 bar 5 bar
29 psi 72.5 psi
1.010601
1.009048 1.023424
1.007964 1.020432
1.006960 1.017743
1.005705 1.014456
1.004851 1.012252
1.004082 1.010283
°F 5 bar 5 bar
72.5 psi 72.5 psi
212 0.26%
248 0.23% 0.50%
306 0.20% 0.42%
356
0.17% 0.37%
414 0.15% 0.32%
507 0.12% 0.26%
592 0.09% 0.22%
691
0.07% 0.18%
Pressure
10 bar 20 bar
145 psi 290 psi
1.042934
1.036765 1.079856
1.029597 1.062307
1.024933 1.051729
1.020834 1.042799
Pressure
5 bar 5 bar 5 bar
72.5 psi 72.5 psi 72.5 psi
1.14%
0.99% 2.10%
0.86% 1.79% 3.9%
0.69% 1.44% 3.0%
0.58% 1.21% 2.5%
0.49% 1.01% 2.1%
50 bar 100 bar
725 psi 1450 psi
1.192220
1.147384 1.424747
1.116952 1.282623
5 bar 5 bar
72.5 psi 72.5 psi
9.2%
7.1% 19.3%
5.7% 13.2%
200 bar
2900 psi
3.086361
5 bar
72.5 psi
79%