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On the energy efficiency in the heatproof nozzle of the pneumatic pulsator system during supersonic airflow
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Title: On the energy efficiency in the heatproof nozzle of the pneumatic pulsator system during supersonic airflow

Creator:

Wołosz, Krzysztof J. ; Wernik, Jacek

Date:

2018

Type:

artykuł w czasopiśmie

Description:

In this article, a study of supersonic airflow through a channel with various cross-section is presented. The channel is namely a heatproof nozzle which is used in a pneumatic pulsator system. The system utilizes a pneumatic impact to destruct or to avoid of the creation of unfavourable phenomena which comes from cohesion forces. The pneumatic pulsator system is driven by compressed air and a high-velocity airflow is induced by the difference between internal and external air pressure. This flow changes its characteristics during a work cycle of the pulsator from subsonic to supersonic conditions. It causes a very dynamic gas conversion and may produce additional heat inside the pulsator and its nozzle. The article presents a method for calculating the value of the heat which can be generated inside the heatproof nozzle. The results of the study shows that the small amount of energy is lost during the airflow which can generate an increment of heatproof nozzle wall temperature.

Place of publishing:

Koszalin

Publisher:

Publishing House of the Koszalin University of Technology

Format:

application/pdf

Identifier:

oai:dlibra.tu.koszalin.pl:1580

Language:

eng

Is part of:

Journal of Mechanical and Energy Engineering. Vol.2 (42), nr 2, s. 155-162

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY 4.0

Exlibris

Subject and keywords:

energy efficiency supersonic airflow nozzle transient analysis pneumatic pulsator

Object collections:

Last modified:

Nov 6, 2023

In our library since:

Jul 8, 2022

Number of object content hits:

289

All available object's versions:

https://dlibra.tu.koszalin.pl/publication/1584

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Edition name Date
Wołosz, Krzysztof J., 2018, On the energy efficiency in the heatproof nozzle of the pneumatic pulsator system during supersonic airflow Nov 6, 2023

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