Abstract
We present the results of investigations carried out during the development of steam turbine condensing systems comprising a condenser, an air removing device, and condensate and circulation systems. It is found that the tube bundle layout and the characteristics of devices for removing noncondensable gases have an essential effect on the heat transfer intensity and pressure in the condensers. The design of the heat-transfer surface of a condenser operating with constant velocity of steam during its condensation is described, and the procedure for calculating the area and configuration of such heat-transfer surface is outlined. Results from tests of such apparatuses are presented. It is shown that the heat-transfer coefficients in them are a factor of 1.5–3.0 higher than those in the existing condensers at a moderate velocity of cooling medium. A qualitative pattern of a change in the volume filled with noncondensable gases that occurs during a decrease of thermal load or drop of cooling medium temperature is shown taking as an example condensers with steam flowing inside the condenser tubes.
Similar content being viewed by others
References
RD (Guiding Document) 34.30.104-81: Guidelines for Thermal Design of Surface Condensers for Large Turbines of Thermal and Nuclear Power Stations (SPO Soyuztekhenergo, Moscow, 1982) [in Russian].
G. G. Shklover and O. O. Milman, Investigation and Calculation of a Condensing Device for Steam Turbines (Energiya, Moscow, 1985) [in Russian].
Yu. M. Brodov and K. E. Aronson, A Handbook on Heat-Transfer Apparatuses for Steam Turbine Units (UGRU-UPI, Yekaterinburg, 2006) [in Russian].
O. O. Milman and V. P. Nikitochkin, “The layout of a steam condenser tube bundle,” Therm. Eng., No. 5 (1991).
V. P. Agafonov, V. G. Ermilov, and E. V. Pankov, Ship-Borne Condensing Units (Sudpromgiz, Leningrad, 1963) [in Russian].
B. S. Petukhov, L. G. Genin, and S. A. Kovalev, Heat Transfer in Nuclear Power Installations (MEI, Moscow, 2003) [in Russian].
V. A. Fedorov, A. V. Kiryukhin, O. N. Shiryaev, et al., “A new line in the development of high-efficient condensers for steam turbine units,” Vestnik MEI, No. 1, 54–62 (2008).
V. A. Fedorov and O. O. Milman, Thermal-Hydraulic Self-Oscillations and Instability in Heat-Transfer Systems with a Two-Phase Flow (MEI, Moscow, 1998) [in Russian].
V. A. Fedorov, O. O. Milman, N. V. Kolesnikov, et al., “Results from Experimental Investigations of the Performance of Air Condensers for Steam Turbine Units,” Therm. Eng., No. 2, 111 (2013).
Author information
Authors and Affiliations
Additional information
Original Russian Text © V.A. Fedorov, O.O. Milman, 2014, published in Teploenergetika.
Rights and permissions
About this article
Cite this article
Fedorov, V.A., Milman, O.O. Design and layout characteristics of steam turbine condensers. Therm. Eng. 61, 22–29 (2014). https://doi.org/10.1134/S0040601514010029
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0040601514010029