- Tytuł:
- On the energy efficiency in the heatproof nozzle of the pneumatic pulsator system during supersonic airflow
- Autorzy:
-
Wołosz, K. J.
Wernik, J. - Powiązania:
- https://bibliotekanauki.pl/articles/95193.pdf
- Data publikacji:
- 2018
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
energy efficiency
supersonic airflow
nozzle
transient analysis
pneumatic pulsators
efektywność energetyczna
naddźwiękowy przepływ powietrza
dysza
analiza stanów przejściowych
pulsator pneumatyczny - Opis:
- 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 destructor 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.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2018, 2, 2; 155-161
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł