PROJECT REVIEW PPT

PROJECT REVIEW PPT

1. Design and analysis of Centrifugal blower By Using CFD

2. Project members and Project guide www.themegallery.com Project Team: Project Guide: Md.Hasheer (Asst. Professor) Project Leader: Shaik Mustaq Elahi (L12ME 1010) Team Members: Siva Subrahmanyam (L12ME1017) Priyanka (Y11ME937) Shaik Akram (Y11ME946) Mounika (Y11ME952)

3. ABSTRACT Impeller blades are one of important element of a centrifugal fan . They are mostly categorized into six types: AF, BI, BC, FC, RT, RB among which the BI i.e. impeller with back blades are considered as highly effective. The succeeding paper presents the performance enhancement a centrifugal blower with impellers having various types of blades . www.themegallery.com

4. Contents 1 2 3 Literature review   4 Introduction Project Background Details of the project upto now

5. 1.Introduction Compressors , blowers and fans are all the members of the same family of machines called turbo machines. A turbo machine is power or head generating machine which employs the dynamic action of a rotating element (i.e. the rotor) the action of the rotor changes the energy level of the continuously flowing fluid through the turbo machine. Centrifugal blower :- A centrifugal blower is a mechanical device which is used for circulating air or other gases at a pressure of 1.5 to 2.75 bars

6. Definition & Principle of working www.themegallery.com A blower is a rotary, positive displacement type of machine used to move gas and air and is used in a variety of methods. Rotary blowers and positive displacement blowers are just two of several types that are available

7. Centrifugal blower :- Types Centrifugal blower types Forward curved blower Backward curved blower Radial blower

8. 1 Forward-curved blowers operate at low temperatures and well suited for low tip speed and high air flow 2 Backward-curved blowers are more efficient than forward-curved fans. 3 Radial blowers are industrial work-horses well suited for high temperature and medium blade tip speeds.

9. www.themegallery.com Difference between various turbo machines Blower Pump Fan Comp. A blower is a machine for moving volumes of a gas with  a pressure of about 1.7 bar A fan moves large quantity of gas with low increase in pressure upto 1.15 bar A pump is a machine for raising a liquid to a higher level of pressure upto 1.01 bar A comp. is a machine for raising a gas to a higher level of pressure above 1.7 bar

10. Applications Conveying material in dust collector systems Applications of Blower Food processing Circulating air in ovens and dryers General ventilation of rooms or factories. Cooling electrical equipment  Combustion air for burners

11. 2.Project background Computational fluid dynamics :- Computational fluid dynamics, usually abbreviated as  CFD , is a branch of  fluid mechanics  that uses numerical methods and algorithms to solve and analyze problems that involve  fluid  flows . Cfd software involves two tools Gambit ( pre- processor) fluent ( solver & post processor) www.themegallery.com

12. www.themegallery.com CFD(Computational Fluid Dynamics) CFD is one of the branches of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows. Computer are used to perform the millions of calculations required to simulate the interaction of fluid and gases with the complex surfaces used in engineering. However, even with simplified equations and by using high speed super computers, only approximate solutions can be achieved in many cases. More accurate codes that can accurately and quickly simulate even complex scenarios such as supersonic or turbulent flows are an on going area of research.

13. CFD process Consists of Three Primary Steps Pre-Processing Solver Post-Processing  This is the first step of CFD simulation process which helps in describing the geometry in the best possible manner . fluid & material properties, flow physics model, and boundary conditions are applied with the help of solver by using a computer. The final step is to analyze the results with different methods like contour plots, vector plot, streamlines, data curve etc,.

14. Advantages of cfd It provides the flexibility to change design parameters without the expense of hardware changes. It has a faster turnaround time than experiments. It guides the engineer to the root of problems, and is therefore well suited for trouble-shooting . 4. It provides comprehensive information about a flow field, especially in regions where measurements are either difficult or impossible to obtain.

15. Applications Power Generation Automotive Biomedical Applications of CFD Aerospace Hydraulics Marine

16. www.themegallery.com 3.Data collected for the project Input Parameters MDK Value Inlet diameter 250mm Outlet diameter 500mm Shaft diameter 200mm Motor RPM 1440 Speed of fan rotation 2070 Power 7.5HP(AC 3 phase) V.S. Thangarasu, G. Sureshkannan, N.V. Dhandapani., Design and Experimental Investigation of Forward Curved, Backward Curved and Radial Blade Impellers of Centrifugal Blower. Aust. J. Basic & Appl. Sci., 9(1): 71-75, 2015

17. Parameters of impeller blades Volute Casing Details

18. Modeling of blower in gambit 1.Backward curved blower

19. Forward curved blower

20. Radial blower

21. Analysis of blower Backward curved blower

22. Forward curved blower

23. Radial blower

24. 4.Literature and Review XinweiShu et al (2009) showed how the performance can be improved by properly reshaping its blade a developed multipoint optimisation approach. They conducted test on the forward blade . Singh O. P. et al (2011) investigated the effect of geometric parameters of centrifugal blower with forward and backward curved blades.

25. Sun- Sheng Yang et al conducted performance on centrifugal blower theoretically, numerically and experimentally. Choon-Man Jang et al (2013) analysed the effect of design variables on the performance of centrifugal blowers. They found that the casing height of the design variable is more sensitive on the function of efficiency compared to that of casing width.

26. Thank You !