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Akademický článek

Introductory Numerical Study on Supersonic Ejector Working with R32

Autor: Vojta Lukas, Kracik Jan, Dvorak Vaclav

Publikováno v: EPJ Web of Conferences, Vol 213, p 02096 (2019)

Nowadays, there is an increasing demand for devices which work efficiently with the smallest possible consumption of energy. In this regard, incorporating ejectors seems to be an interesting choice. This paper describes the numerical analysis of the

Externí odkaz: https://doaj.org/article/4a21c2d09b764cfbb0c0f5030e128471

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Akademický článek

Experimental and Numerical Study on Supersonic Ejectors Working with R-1234ze(E)

Autor: Kracik Jan, Dvorak Vaclav, Nguyen Van Vu, Smierciew Kamil

Publikováno v: EPJ Web of Conferences, Vol 180, p 02047 (2018)

These days, much effort is being put into lowering the consumption of electric energy and involving renewable energy sources. Many engineers and designers are trying to develop environment-friendly technologies worldwide. It is related to incorporati

Externí odkaz: https://doaj.org/article/fad81d11ec2543cc981a314409603927

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Akademický článek

CFD simulation of ejector: is it worth to use real gas models?

Autor: Vu Nguyen Van, Kracik Jan

Publikováno v: EPJ Web of Conferences, Vol 180, p 02075 (2018)

This paper presents progress of evaluation existing ejector of previous work with different gases, included real gas. This work was done by the Ansys simulation tool. The paper also discussed about the two solvers used for simulating real gas difluor

Externí odkaz: https://doaj.org/article/8efaf910b7d64e7583d432305f5aa85b

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Akademický článek

Preliminary study of the primary nozzle position of a supersonic air ejector with a constant-area mixing chamber

Autor: Kracik Jan, Dvorak Vaclav

Publikováno v: EPJ Web of Conferences, Vol 143, p 02056 (2017)

This work aims at investigating the primary nozzle position in a proposed supersonic air ejector device. The ejector is primarily made up of a supersonic primary nozzle, which is located in the axis of the ejector, a suction chamber or secondary stre

Externí odkaz: https://doaj.org/article/2314e26cf6de4e13bb5d39b423c46752

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Akademický článek

Development of an Analytical Method for Predicting Flow in a Supersonic Air Ejector

Autor: Kracik Jan, Dvorak Vaclav

Publikováno v: EPJ Web of Conferences, Vol 114, p 02059 (2016)

The article deals with development of an analytical method for predicting flow in an ejector with twelve supersonic nozzles, which are located at the periphery of the mixing chamber of the ejector. Supersonic primary air stream makes the investigatio

Externí odkaz: https://doaj.org/article/d52c9d8d114841b7a7586c86416ab097

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