Thermal calculation for a heating block of a high-pressure direct contact heater using data from experimental study
F.A. Svyatkin1, V.D. Lychakov1,2, Yu.V. Usov1, A.S. Matyash1, B.F. Balunov1, Yu.G. Sukhorukov1, P.V. Egorov1
1JSC “Polzunov Scientific and Development Association on the Research and Design of Power Equipment”, St. Petersburg, Russia
2Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
Keywords: BREST reactor unit, direct contact heater, recuperation heating system, subheating, droplet model
Abstract
The accurate study of heat transfer between water and steam at high pressures was achieved on a developed and tested model of a miixing unit for heat transfer flows (MUHTF). The testing results demostrated that the input water subheating up to the saturation temperature at the model exit is less than 1 and 2 °С for two- and single-tray arrangement of the water-separation unit in the model, correspondingly. The droplet flow model might be applied for thermal calculation of the heating block in the MUHTF.
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