<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The paper presents the results of analysis which enable determination of the value of the pressure losses coefficients which occurred during air suction and flow through a perforated pipe. Knowledge on them is indispensable for determination of regularity of air suction along the considered pipe. Exiting the basic energy equation, firstly a local coefficient of pressure losses was determined and then the form of the relation for its determination in the function of independent variables was found out. In the second stage, the value of pressure losses caused by mutual crossing of two streams (axial stream and stream sucked by the side surface of a pipe) was determined. Also, for this coefficient, the form of the correlation equation including power relation between the independent variables was emphasised. The calculated values of the discussed coefficients from determined forms of correlation equations are satisfactorily compliant with the calculated values from the experiments which were carried out.</p></abstract>

The paper presents the results of analysis which enable determination of the value of the pressure losses coefficients which occurred during air suction and flow through a perforated pipe. Knowledge on them is indispensable for determination of regularity of air suction along the considered pipe. Exiting the basic energy equation, firstly a local coefficient of pressure losses was determined and then the form of the relation for its determination in the function of independent variables was found out. In the second stage, the value of pressure losses caused by mutual crossing of two streams (axial stream and stream sucked by the side surface of a pipe) was determined. Also, for this coefficient, the form of the correlation equation including power relation between the independent variables was emphasised. The calculated values of the discussed coefficients from determined forms of correlation equations are satisfactorily compliant with the calculated values from the experiments which were carried out.

Analysis of Parameters which Affect Regularity of Air Flow in Perforated Pipe

Institute of Agricultural Engineering and Informatics,

Institute of Machinery Management, Ergonomics and Production Processes University of Agriculture in Krakow,

Agricultural Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Analysis of Parameters which Affect Regularity of Air Flow in Perforated Pipe"}

The paper presents the results of analysis which enable determination of the value of the pressure losses coefficients which occurred during air suction and...

Analysis of Parameters which Affect Regularity of Air Flow in Perforated Pipe

Publié en ligne: 09 févr. 2017

Pages: 127 - 135

Reçu: 01 oct. 2016

Accepté: 01 déc. 2016

DOI: https://doi.org/10.1515/agriceng-2016-0070

Mots clés
perforated pipe, air suction local pressure losses

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Analysis of Parameters which Affect Regularity of Air Flow in Perforated Pipe

Publié en ligne: 09 févr. 2017

Pages: 127 - 135

Reçu: 01 oct. 2016

Accepté: 01 déc. 2016

DOI: https://doi.org/10.1515/agriceng-2016-0070

Mots clésperforated pipe, air suction local pressure losses

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
perforated pipe, air suction local pressure losses