- Tytuł:
- Numerical modelling of ejector operating with isobutane
- Autorzy:
-
Śmierciew, K.
Butrymowicz, D.
Gagan, J.
Pietrowicz, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1818161.pdf
- Data publikacji:
- 2017
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
isobutane
numerical
modeling - Opis:
- The rapid growth of various applications of the ejection refrigeration systems could be observed recently. Because of possibility of the application of solar or waste energy to supply the motive energy they can be thought as a real alternative to compression devices in air-conditioning technologies. Ejection system can effectively compete with absorption system under temperature of the motive heat source lower than 80°C. The paper deals with CFD numerical simulation along with experimental investigations carried out on a specially constructed prototype/stand for the case of isobutane as a working fluid under motive vapour temperature below 75°C. The numerical and experimental results of entrainment ratio were compared. A good accuracy between numerical and experimental results was observed. The divergent of the results are lower than 20% for tested series. The exemplary pressure and velocity field were presented. Also it was shown that predicted by numerical simulation pressure distribution at ejector wall fits well with experimental pressure distribution.
- Źródło:
-
Zeszyty Energetyczne; 2017, 4; 51--62
2658-0799 - Pojawia się w:
- Zeszyty Energetyczne
- Dostawca treści:
- Biblioteka Nauki
Artykuł