INVESTIGATION OF THE STATE AND METHOD OF CONTROLLING THE PARAMETERS OF A TWO-PHASE VAPOR SYSTEM IN ITS FLOW IN A CHANNEL

A wide area for application of vapor in heat power industry has been shown. Due to this, the problem of maintaining and controlling the dryness of steam during its transportation through steam pipelines remains of current importance. Quite detailed theoretical investigations into the steam parameters during its fl ow in the pipe have been carried out. A comparative analysis of steam velocity and temperature epures as a function of certain parameters and assumed approximations has been conducted. All calculations have been brought to quantitative results. As a result of the implemented analysis, it has been shown that the uncertainty of exact values of some quantities does not play a crucial role in common patterns of the formation of a dropping liquid. As a result of numerical investigations into the kinetics of steam condensation, the specifi c volume and density of the droplet condensate across the pipe have been identifi ed. The obtained results and the proposed methodological approach to identifying steam parameters have been used in the development and further improvement of a device to measure dryness of steam whose original design was proposed earlier by one of the authors. The functional diagram and the prototype model of the batchbox of the measuring device are given in this investigation.
   
Author:  B. Yu. Kaplan and E. L. Stupitskii
Keywords:  pipeline, dryness of steam, condensate, kinetics, steam dryness control, steam temperature, steam velocity
Page:  1424