Numerical analysis on a constant rate of kinetic energy change based a two-stage ejector-diffuser system

Sethi, Virendra Kumar (avtor), Kumar, Anil (avtor), Kumar Yadav, Surendra (avtor), Yadav, Anshul (avtor), Prasad, Lalta (avtor), Winczek, Jerzy Adam (avtor)

Supersonic ejector energy flow devices are extensively used in various applications, such as pumping, mixing, compression, etc. The conventional single-stage ejector (SSE) design approaches are inefficient for modelling an efficient ejector because of their inefficiency in minimizing mixing losses in the mixing chamber, thermodynamic shock in constant area diffuser, and utilization of redundant discharged momentum at the exit of the first stage. The physics-based single-stage ejector design has better solutions because it minimizes irreversibility due to thermodynamic shocks. The present study utilizes the constant rate of a kinetic energy change physics-based approach to design a two-stage ejector (TSE) for water vapour. The computational fluid dynamics (CFD) tool ANSYS-Fluent has been utilized to predict flow characteristics. The performance of the ejector-diffuser system has also been compared with a single-stage ejector. It is found that the performance of TSE is 70 % higher than that of the performance of SSE.

• Jezik: Angleški jezik
• Ključne besede: ejectors, CRKEC, two-stage ejectors, single-stage ejectors, CFD
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 01.01.2022
• Leto izida: 2022
• Št. strani: Str. 368-373
• Številčenje: Vol. 68, no. 5
• PID: 20.500.12556/RUL-137289
• UDK: 621.527
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2021.7538
• COBISS.SI-ID: 111047427
• Datum objave v RUL: 09.06.2022

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 28.03.2022

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Numerična analiza sistema dvostopenjskega ejektorja-difuzorja na osnovi konstantne hitrosti sprememb kinetične energije
• Ključne besede: ejektorji, CRKEC, dvostopenjski ejektorji, enostopenjski ejektorji, CFD, curkovne črpalke, CRM