150USRT Class R-513A Refrigerant Two-Stage Centrifugal Compressor Design Point and Separation Point Flow Field Simulation Analysis

نویسندگان

چکیده

This study used computational fluid dynamics for low greenhouse effect refrigerant (R-513A) simulation analysis in the two-stage 150 USRT class oil-free centrifugal compressor using integrated part load value (IPLV) and internal flow field. The rotor speed mass rate IPLV working conditions with various loads were planned Stage 1 2 simulations, respectively. performance field numerical analyses is discussed. Ansys-CFX software conservation form of a 3D steady-state Navier–Stokes equation set finite volume discretization method computation. computing mode produced better efficiency flexible mesh setting k-omega (k-ω) model, which has near wall boundary layer Reynolds number (used as turbulence model) simulation. R-513A property was calculated Soave–Redlich–Kwong gas equation. discusses shaft work, pressure ratio, isentropic also describes main research findings meridional pressure, contour maps, velocity vector diagrams. According to results, highest results 75% case, are 88.19% 89.06%, decreased 75.93% 82.26%, respectively, 25% case. diagram shows that there back-flow distribution impeller shroud. analyzed.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Design, Analysis and Fabrication of a Meso-scale Centrifugal Compressor

A gas or vapor compressor is one of the key components of many engineering systems, such as certain designs of vapor compression refrigeration systems, cryo-coolers, air handlers. For meso-scale systems with linear dimensions of a few centimeters, conventional designs do not work efficiently because of rather large relative tolerances, and hence these meso-scale systems require micro-fabricated...

متن کامل

CFD Analysis of Off-design Centrifugal Compressor Operation and Performance

This paper presents some of the results from a Master’s thesis research into the performance and operation of a centrifugal compressor at off-design operating conditions using advanced computational fluid dynamics (CFD) techniques. ANSYS CFX is the CFD solver used in this blind study to evaluate the ability of modern CFD software to predict the performance of centrifugal compressors operating a...

متن کامل

Dynamic centrifugal compressor model for system simulation

A dynamic model of a centrifugal compressor capable of system simulation in the virtual test bed (VTB) computational environment is presented. The model is based on first principles, i.e. the dynamic performance including the losses is determined from the compressor geometry and not from the experimentally determined characteristic performance curves. In this study, the compressor losses, such ...

متن کامل

Point-to-Point DWDM System Design and Simulation

As for the problems of complexity and long cycle in the DWDM design, part of problems needed to be considered in DWDM system design were analyzed. An optimized point-to-point DWDM transmission system was designed. Optical fiber communication system with 40Gbit / s and 32 channel was designed and simulated by Optisystem. Based on the study above, the model witch can inhibit dispersion and fiber ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Processes

سال: 2023

ISSN: ['2227-9717']

DOI: https://doi.org/10.3390/pr11010253