Modelling the flow conditions in the tunnel and its reduced model

Čarnogurská, Mária; Příhoda, Miroslav; Popcakova, Daniela

doi:10.1007/s12206-010-0810-9

Cited by 14 publications

(4 citation statements)

References 3 publications

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“…[3], [4] The restrain time of the flue gas determines how long the flue gas remains in the combustion chamber until it leaves it through the chimney. [5] This parameter is important for sufficient combustion. For combustion of a lower quality fuel is better when the flue gas restrain time is higher.…”

Section: Fuel Change In Small Heat Sourcementioning

confidence: 99%

Fuel change possibilities in small heat source

Ďurčanský

Kapjor

Jandačka

2017

AIP Conference Proceedings

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Section: Fuel Change In Small Heat Sourcementioning

confidence: 99%

Fuel change possibilities in small heat source

Ďurčanský

Kapjor

Jandačka

2017

AIP Conference Proceedings

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“…For stationary flow of compressible fluids, the general differential equation is of the form [4,5,6] ( )…”

Section: Analysis Of the Subsonic And Supersonic Flowmentioning

confidence: 99%

Analysis of the Subsonic and Supersonic Flow Using Analytical and Numerical Methods

Čarnogurská

Brestovič

Příhoda

et al. 2015

AMM

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The article presents the analysis of the 1D flow of compressible fluid by means of analytical and numerical methods. The results from the solution showed that the calculation of dimensionless velocity for particular flow conditions varies in the area of subsonic flow only a very little, when using both methods. It was found that the dependence of dimensionless velocity on the relative duration of the investigated tunnel applies universally. For any proportional value of the tunnel length x/L and the constant ratio of outlet and inlet cross section of the tunnel level equal to 0.6474, the course of the dimensionless velocity for each tunnel, which satisfies the above condition, will always be the same. This means that also the nature of flow in any such tunnel will exhibit the same properties. This finding provides new knowledge from the analysis of air flow through a channel with a variable flow cross section.

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“…Currently, the proposed design of heat exchangers and other equipment must satisfy complex requirements in terms of production technology [1] and [2], troublefree operation [3] and economic feasibility [4] and [5]. The main requirements for heat exchangers include a large overall heat transfer coefficient, low flow resistance, a simple process of cleaning the heat transfer surface area, corrosion resistance in various transported media, adaptation of the shape of the heat exchanger to the specified manufacturing needs, as well as price [6] and [7].…”

Section: Introductionmentioning

confidence: 99%