다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
International journal of turbo & jet-engines, v.33 no.3, 2016년, pp.215 - 228
Hariharan, C. , Govardhan, M.
AbstractThe present work reports the effect of inlet clearance on the performance of a centrifugal blower, with parallel wall volute, over its full operating range. For a particular impeller configuration, four volutes based on constant angular momentum principle, have been designed and analysed numerically for varying inlet clearances ranging from 0 mm (ideal clearance) to 5 mm. The computational methodology is validated using experimental data. The results indicate that as the clearance increases, the impeller performance in terms of both static and total pressure rise deteriorate. Further, the stage performances deteriorate in terms of efficiency and specific work for all mass flow rates. However, the performance of volute improves at lower mass flow rates compared to the Best Efficiency Point (BEP). A set of correlations have been developed to predict the change in stage performance as a function of clearance ratio. The non-dimensional values of change in specific work, isentropic efficiency and static pressure are found to be same irrespective of the shape of the volute.
1. Lee YT Impact of fan gap flow on the centrifugal impeller aerodynamics J Fluids Eng 2010 132 91103 911031
2. Engin T Gur M Scholz R Effects of tip clearance and impeller geometry on the performance of semi-open ceramic centrifugal fan impellers at elevated temperatures Exp Therm Fluid Sci 2005 30 565 77
3. Engin T Gur M Performance characteristics of a centrifugal pump impeller with running tip clearance pumping solid-liquid mixtures J Fluids Eng 2001 123 532 8
4. Eum HJ Kang YS Kang SH Tip clearance effect on through-flow and performance of a centrifugal compressor KSME Int J 2004 18 979 89
5. Nili-Ahmadabadi M Investigation of a centrifugal compressor and study of the area ratio and TIP clearance effects on performance J Therm Sci 2008 17 314 23
6. Rajakumar DR Ramamurthy S Govardhan M Study on the performance deterioration of mixed flow impeller due to change in tip clearance J Therm Sci 2013 22 532 8
7. Hong SS Abhari RS Effect of tip clearance on impeller discharge flow and vaneless diffuser performance of a centrifugal compressor Proc Instn Mech Engrs Part A 2012 226 963 74
8. Ayder E Van den Braembussche R Brasz JJ Experimental and theoretical analysis of the flow in a centrifugal compressor volute J Turbomach 1993 115 582 9
9. Jung Y Effects of a Nonuniform Tip clearance profile on the performance and flow field in a centrifugal compressor Int J Rotat Mach 2012 ID 340439
10. Engin T Study of tip clearance effects in centrifugal fans with unshrouded impellers using computational fluid dynamics Proc Instn Mech Engrs Part A 2006 220 599 610
11. Asuaje M Numerical modelization of the flow in centrifugal pump volute influence in velocity and pressure fields Int J Rotat Mach 2005 3 244 55
12. Hariharan C Govardhan M Effect of inlet clearance gap on the performance of an industrial centrifugal blower with parallel wall volute Int J Fluid Mach Syst 2013 6 113 20
13. Hariharan C Govardhan M Loss in input power due to increase in clearance between inlet duct and impeller in an industrial centrifugal blower. 4th International Conference on Advances in Energy Research 2013; 1336
14. Celik IB Procedure for estimation and reporting of discretization error in CFD applications J Fluids Eng 2008 130 078001
15. Rakesh Bhargava. Flow and optimisation studies on splitter vaned centrifugal impellers. M.S. Thesis. 1978; Indian Institute of Technology Madras
16. Kim Y Engeda A Aungier R The influence of inlet flow distortion on the performance of a centrifugal compressor and development of an improved inlet using numerical simulation Proc Instn Mech Engrs 2001 215 323 38
*원문 PDF 파일 및 링크정보가 존재하지 않을 경우 KISTI DDS 시스템에서 제공하는 원문복사서비스를 사용할 수 있습니다.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.