On Intensification of Heat Exchange in Steam Condensers Made of Stainless Steel and Brass
O.V. Ryzhenkov1, A.V. Kurshakov2, A.V. Ryzhenkov3, M.R. Dasaev4, S.V. Grigoriev5
1O.V. Ryzhenkov, National Research, University Moscow Power Engineering, Institute, Moscow, Russia.
2A.V. Kurshakov, National Research, University Moscow Power Engineering, Institute, Moscow, Russia.
3A.V. Ryzhenkov, National Research, University Moscow Power Engineering, Institute, Moscow, Russia.
4M.R. Dasaev, National Research, University Moscow Power Engineering, Institute, Moscow, Russia.
5S.V. Grigoriev, National Research, University Moscow Power Engineering, Institute, Moscow, Russia.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 2290-2294 | Volume-8 Issue-7, May 2019 | Retrieval Number: G5948058719/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This work highlights continuous increase in capacities of thermal and nuclear power plants (TPP and NPP), as well as current retrofitting of generating facilities, which evidences increased demand for steam condensers. The most popular approaches to increase efficiency of TPP and NPP condensers are described. Experimental condensers were fabricated of brass and stainless steel in as-delivered state, and with functional surface modified by surfactants. The influence of conversion of film condensation to dropwise condensation on heat exchange efficiency in condenser is described evidencing that surfactants on functional surfaces of condensers provide increase in wetting contact angle which in its turn leads to increase in coefficient of heat transfer in condenser and its overall efficiency.
Keyword: Thermal Power Plant, Nuclear Power Plant, Steam Condenser, Intensification of Heat Exchange, Coefficient of Heat Transfer, Hydrophobicity, Contact Angle, Surfactants.
Scope of the Article: Heat Transfer.