Tytuł:

Modeling the instabilities of the condensation process of the R134a and 404A refrigerants in pipe minichannels in the conditions of periodic hydrodynamic disturbances

Twórca:

Kuczyński, Waldemar ; Denis, Aleksander

Temat:

condensation ; minichannels ; modeling of instabilities

Opis:

In the present paper, an attempt was made to model the periodic hydrodynamic instabilities of the condensation process of a refrigerant in pipe minichannels. For this purpose, a homogenous thermodynamic model with an equilibrium condition on both sides was used, which was based on the equations of the balance of the mass, momentum and energy. These equations were used for numerical modeling of flow disturbances with a phase change. This model takes into account the complexity of multiphase flows. The accuracy of the model calculations was verified by means of the experimental results obtained. A satisfactory compliance was found for this comparison, which confirms the usefulness of the computational model proposed for the determination of the influence of periodically generated hydrodynamic disturbances on the condensation process of R134a and R404A refrigerants in pipe minichannels.

Miejsce wydania:

Koszalin

Wydawca:

Publishing House of the Koszalin University of Technology

Data:

2017

Typ:

artykuł w czasopiśmie

Format:

application/pdf

Język:

eng

Jest częścią:

Journal of Mechanical and Energy Engineering. Vol.1 (41), nr 2, s. 179-188

Prawa:

Biblioteka Politechniki Koszalińskiej

Prawa dostępu:

internet

Licencja:

Creative Commons BY 4.0