It has been well discussed for qualitative natures of a gas-ballast pump for many years, however, there has been little quantitative discussion with measurement.
Corresponding to several experiments with gas-ballast theory in this paper, the numerical results are obtained.
Say, pump temperature of 52°C is estimated in our data and the experimental pump can be exhausted without condensation, 2.2 litres/hour of water vapor issuing the pump in winter and 1.5 litres/hour in summer while the gas-ballast flow is 6 × 10
3 1·mmHg/sec.
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