Nonequilibrium condensation processes in steam turbines in the light of new measurements of heterogeneous particles

0353892 - ÚT 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Hrubý, Jan - Kolovratník, M. - Ždímal, Vladimír - Bartoš, Ondřej - Moravec, Pavel - Jiříček, I.
Nonequilibrium condensation processes in steam turbines in the light of new measurements of heterogeneous particles.
9th conference on Power System Engineering, Thermodynamics & Fluid Flow (ES 2010). Plzeň: Západočeská univerzita v Plzni, 2010, s. 45-52. ISBN 978-80-7043-912-8.
[Conference on Power System Engineering, Thermodynamics & Fluid Flow - ES 2010 /9./. Plzeň (CZ), 17.06.2010-18.06.2010]
Grant CEP: GA ČR GA101/09/1633
Výzkumný záměr: CEZ:AV0Z20760514; CEZ:AV0Z40720504
Klíčová slova: heterogeneous nucleation * steam turbine * nonequilibrium condensation
Kód oboru RIV: BJ - Termodynamika

In a steam turbine, droplets are formed either homogeneously or via heterogeneous nucleation on pre-existing heterogeneous particles. In a pioneering work, the present team developed a system to measure the number and size of heterogeneous particles down to diameter of 3 nm. This work reports on measurements at Power Plant Prunéřov II. For the first time, the data is at higher parameters (0.27 MPa, 250°C), and the diffusion battery was used to determine the size distribuition of the particles, showing count-mean diameter of about 13 nm.
Trvalý link: http://hdl.handle.net/11104/0193012