Experimental Research of Heterogeneous Nuclei in Superheated Steam

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00242161" target="_blank" >RIV/68407700:21220/16:00242161 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/epjconf/201611402002" target="_blank" >http://dx.doi.org/10.1051/epjconf/201611402002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/201611402002" target="_blank" >10.1051/epjconf/201611402002</a>

Result language

angličtina

Original language name

Experimental Research of Heterogeneous Nuclei in Superheated Steam

Original language description

A mobile steam expansion chamber has been developed to investigate experimentally homogeneous and heterogeneous nucleation processes in steam, both in the laboratory and at power plants using the steam withdrawn from the steam turbine. The purpose of the device is to provide a new insight into the physics of non-equilibrium wet steam formation, which is one of the factors limiting the efficiency and reliability of steam turbines. The expanded steam or a mixture of steam with a non-condensable gas is rapidly expanded in the expansion chamber. Due to adiabatic cooling, temperature drops below the dew point of the steam at a given pressure. When reaching a sufficiently high supersaturation, droplets are nucleated. By tuning the supersaturation in the so-called nucleation pulse, particles of various size ranges can be activated. This fact is used in the present study to measure the aerosol particles present in the air. Homogeneous nucleation was negligible in this case. The experiment demonstrates the functionality of the device, data acquisition system and data evaluation methods.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JE - Non-nuclear power engineering, energy consumption and utilization

OECD FORD branch

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Project

<a href="/en/project/GAP101%2F11%2F1593" target="_blank" >GAP101/11/1593: Investigation of non-equilibrium steam condensation: A new approach</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

EPJ web of conferences

ISSN

2101-6275

e-ISSN

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Volume of the periodical

2016

Issue of the periodical within the volume

114

Country of publishing house

FR - FRANCE

Number of pages

4

Pages from-to

38-41

UT code for WoS article

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EID of the result in the Scopus database

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