Triple-Nozzle Thermo-Compressor: Geometrical Investigation and Comparison with Single-Nozzle Thermo-Compressor

Publish Year:

1401

نوع سند:

مقاله ژورنالی

زبان:

English

View:

39

This Paper With 10 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_JAFM-15-6_005

تاریخ نمایه سازی: 2 مهر 1401

Abstract:

Primary nozzle is one of the most important factors which has a large influence on the performance of thermo-compressors. Most of studies carried out until now, have been performed on single-nozzle thermo-compressors. In this paper, an actual industrial thermo-compressor is considered and the purpose is to study the effect of increasing primary nozzle number on the performance of this thermo-compressor. For this purpose, a triple-nozzle thermo-compressor is simulated numerically and its performance is compared with single-nozzle thermo-compressor. Ideal gas thermodynamic properties are considered to simulate the compressible flow within the thermo-compressor and numerical result is validated using the experimental result. In addition, the effects of variation in mixing chamber convergence angle and position of nozzles at the radial direction in triple-nozzle thermo-compressor are investigated. The numerical results show that at the same condition, a triple-nozzle thermo-compressor is able to provide superior critical back pressure and entrainment ratio than single-nozzle thermo-compressor. The proximity of nozzles (with ۳۴% changes in radial distance) increases the critical back pressure about ۸% and decreases the entrainment ratio about ۵%. By increasing mixing chamber convergence angle about ۶۶%, the value of critical back pressure decreases about ۲۹% and the value of entrainment ratio decreases about ۱۶% in single nozzle-thermo-compressor and ۱۰% in triple-nozzle thermo-compressor. Also, by ۸% reduction of mixing chamber convergence angle, the critical back pressure decreases ۶% but entrainment ratio decreases about ۲% in single-nozzle thermo-compressor and increases about ۳% in triple-nozzle thermo-compressor.

Authors

S.Asgarnejad
S. Asgarnejad

Department of Mechanical Engineering, University of Guilan, Rasht, Iran

R.Kouhikamali
R. Kouhikamali

Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran

M. Hassani

Independent Researcher

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • Aligolzadeh, F. and A. Hakkaki-Fard (۲۰۱۹). A novel methodology for ...
  • Dong, J., Q. Hu, M. Yu, Z. Han, W. Cui, ...
  • Fu, W., Y. Li, Z. Liu, H. Wu and T. ...
  • Huang, B. J., J. M. Chang, C. P. Wang and ...
  • Kouhikamali, R. and N. Sharifi (۲۰۱۲). Experience of modification of ...
  • Kouhikamali, R., A. Abbassi, S. S. Vanini and M. S. ...
  • Kouhikamali, R, A. Abbassi and S. S. Vanini (۲۰۰۸b). A ...
  • Kouhikamali, R. and S. Mohebinia (۲۰۰۸). Experience of design and ...
  • Metin, C., O. Gök, A. U. Atmaca and A. Erek ...
  • Petrovic, A., J. Svorcan, A. Pejcev, D. Radenkovic and A. ...
  • Sharifi, N. (۲۰۱۳). Axisymmetric and three-dimensional flow modeling within thermal ...
  • Ruangtrakoon, N., T. Thongtip, S. Aphornratana and T. Sriveerakul (۲۰۱۳). ...
  • Xue, H., L. Wang, L. Jia, C. Xie and Q. ...
  • Zhang, G., S. Dykas, P. Li, H. Li and J. ...
  • ...