design and flow simulation of centrifugal blower by...

DESIGN AND FLOW SIMULATION OF CENTRIFUGAL BLOWER BY USING SOLID

WORKS

1 SONTREDDY SATISH, 2 K. B. G. TILAK M. E, MISTE, MIRED, (Ph D)

1 PG Scholar, Department of MECH, NALLA NARASIMHA REDDY ENGINEERING COLLEGE (NNRG)

Village: Korremula X Road, Ghatkesar (M), Medchal (Dist): Telangana state, India, Pin: 500088

Email id: [email protected]

2 Assistant Professor, Department of MECH, NALLA NARASIMHA REDDY ENGINEERING COLLEGE

(NNRG) Village: Korremula X Road, Ghatkesar (M), Medchal (Dist): Telangana state, India, Pin: 500088

Email id: [email protected]

ABSTRACT

Centrifugal blowers are used in naval applications and

motors which have high noise levels. The noise

generated by a rotating component is mainly due to

random loading force on the blades and periodic

iteration of incoming air with the blades of the rotor.

The Contemporary blades in naval applications are

made up of Aluminum or Steel and generate noise that

causes disturbance to the people working near the

blower.

The present work aim is to change the no. of blades and

material then performing the different analysis like

static and flow simulation to find the optimum no.of

blades and best material which is increase its efficiency

by using the software SOLID WORKS 2016

PREMIUM VERSION.

1. INTRODUCTION

A centrifugal fan is a mechanical device for

moving air or other gases. The terms "blower" and

"squirrel cage fan" (because it looks like a hamster

wheel) are frequently used as synonyms. These fans

increase the speed of air stream with the rotating

impellers.

They use the kinetic energy of the impellers or the

rotating blade to increase the pressure of the air/gas

stream which in turn moves them against the resistance

caused by ducts, dampers and other components.

Centrifugal fans accelerate air radically, changing the

direction (typically by 90°) of the airflow. They are

sturdy, quiet, reliable, and capable of operating over a

wide range of conditions.

1.1 Principle of operation:

The centrifugal fan uses the centrifugal power supplied

from the rotation of impellers to increase the kinetic

energy of air/gases. When the impellers rotate, the gas

particles near the impellers are thrown-off from the

impellers, then moves into the fan casing. As a result,

the kinetic energy of gas is measured as pressure

because of the system resistance offered by the casing

and duct. The gas is then guided to the exit via outlet

ducts. After the gas is thrown-off, the gas pressure in

the middle region of the impellers decreases. The gas

from the impeller eye rushes in to normalize this cycle

repeats and therefore the gas can be continuously

transferred.

1.2 Velocity triangle:

A diagram called a velocity triangle helps us in

determining the flow geometry at the entry and exit of

a blade.

Fig.1: Velocity triangle

International Journal of Research

Volume 7, Issue XI, November/2018

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A minimum number of data are required to draw a

velocity triangle at a point on blade. Some

component of velocity varies at different point on

the blade due to changes in the direction of flow.

These velocities are related by the triangle law of

vector addition:

2. LITERATURE SURVEY

Static and Dynamic Analysis of a Centrifugal

Blower Using FEA Veeranjaneyulu Itha1,

T.B.S.Rao2, International Journal of Engineering

Research & Technology (IJERT) Vol. 1 Issue 8,

October - 2012 ISSN: 2278-0181, pp. 1-11. In this

project work this paper is used to study static and

dynamic analysis of blower so as to reduce

vibrations & impact.

Numerical Design and Parametric Optimization of

Centrifugal Fans with Airfoil Blade Impellers

AtrePranav C. and ThundilKaruppa Raj R. School

of Mechanical and Building Sciences, VIT

University, Vellore-632014, Tamilnadu, INDIA. In

this project work this paper is used to know how

Numerical Design and Parametric Optimization of

Centrifugal Fans with Airfoil Blade impellers help

to improve the efficiency of blades & optimize the

weight.

A numerical Study on the Acoustic Characteristics of a

Centrifugal Impeller with a Splitter Wan-Ho Jeon1 1

Technical Research Lab., CEDIC Ltd., #1013, Byuksan

Digital Valley II, Kasan- dong. This paper is used to

know Acoustic Characteristics of a Centrifugal Impeller

with a Splitter. Centrifugal turbo machines are

commonly used in many air-moving devices due to

their ability to achieve relatively high-pressure ratios in

a compact configuration compared with axial fans.

Evaluation of Static & Dynamic Analysis of a

Centrifugal Blower Using FeaMohdJubairNizami,

Ramavath Sunman, M.GuruBramhananda Reddy,

International Journal Of Advanced Trends in Computer

Science and Engineering, Vol.2, Issue 7, January-2013,

pp. - 316-321. To study static and dynamic analysis of

blower is to reduce vibrations & impact. Centrifugal

blowers are used extensively for onboard naval

applications have high noise levels.

3. DIFFERENCE BETWEEN FANS AND

BLOWERS

The property that distinguishes a centrifugal fan from a

blower is the pressure ratio it can achieve. In general, a

blower can produce a higher pressure ratio. As

per American Society of Mechanical

Engineers (ASME) the specific ratio - the ratio of the

discharge pressure over the suction pressure – is used

for defining the fans and blowers.

3. 1 Fan characteristics

Fan characteristics can be represented in form of

fan curve(s). The fan curve is a performance curve

for the particular fan under a specific set of

conditions. The fan curve is a graphical

representation of a number of inter-related

parameters. Typically a curve will be developed for

a given set of conditions usually including: fan

volume, system static pressure, fan speed, and

brake horsepower required to drive the fan under

the stated conditions.

3.2 Industrial blowers or fans :

Industrial fans and blowers are machines whose

primary function is to provide a large flow of air or

gas to various processes of many industries. This is

achieved by rotating a number of blades, connected

to a hub and shaft, and driven by a motor

or turbine.



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Fig.: Industrial blower

3.3 Functions on industries :

There are many uses for the continuous flow of air or

gas that industrial fans generate, including combustion,

ventilation, aeration, particulate transport, exhaust,

cooling, air-cleaning, and drying, to name a few. The

industries served include electrical power production,

pollution control, metal manufacturing and processing,

cement production, mining, petrochemical, food

processing, cryogenics, and clean rooms.

3.4 Centrifugal fans:

The centrifugal design uses the centrifugal force

generated by a rotating disk, with blades mounted at

right angles to the disk, to impart movement to the air

or gas and increase its pressure.

Fig.: Centrifugal fan

3.5 Axial fans :

The axial design uses axial forces to achieve the

movement of the air or gas, spinning a central hub with

blades extending radially from its outer diameter. The

fluid is moved parallel to the fan wheel's shaft, or axis

of rotation. The axial fan wheel is often contained

within a short section of cylindrical ductwork, to which

inlet and outlet ducting can be connected.

Fig.4: Axial fan

4. CENTRIFUGAL FAN SUB-CATEGORIES

Any of these fan sub-types can be built with long-

lasting erosion-resistant liners.

Airfoil (air foil)

Backward curve

Backward inclined

Radial blade

Radial tipped

Paddle-wheel

Forward-curve

Industrial exhausters

Pre-engineered fans (pe)

Pressure blowers

Surge less blowers

Mechanical vapor recovery blowers

Acid gas blowers

Specialty process gas blowers

5. AXIAL FAN SUB-CATEGORIES

High-temperature axial fans

Tube axial fans

Vane axial fans

Variable pitch axial fans

Cooling fans

Mixed-flow fans

Radial turbine blower

6. ENERGY EFFICIENCY OPPORTUNITIES



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This section describes the most important energy

efficiency opportunities for fans and choose the right

fan.

Important considerations when selecting a fan are (US

DOE, 1989):

f Noise

Rotational speed

Air stream characteristics

Temperature range

Variations in operating conditions

Space constraints and system layout

ƒ Purchase costs, operating costs (determined by

efficiency and maintenance), and operating life But as a

general rule it is important to know that to effectively

improve the performance of fan systems, designers and

operators must understand how other system

components function as well. The “systems approach”

requires knowing the interaction between fans, the

equipment that supports fan operation, and the

components that are served by fans. The use of a

“systems approach” in the fan selection process will

result in a quieter, more efficient, and more reliable

system.

6.1 Reduce the system resistance :

The system resistance curve and the fan curve were

explained in section. The fan operates at a point where

the system resistance curve and the fan curve intersects.

The system resistance has a major role in determining

the performance and efficiency of a fan. The system

resistance also changes depending on the process.

6.2 Maintain fans regularly :

Regular maintenance of fans is important to maintain

their performance levels. Maintenance activities include

(US DOE, 1989):

ƒ Periodic inspection of all system components

ƒ Bearing lubrication and replacement

ƒ Belt tightening and replacement

ƒ Motor repair or replacement

ƒ Fan cleaning

6.3 Control the fan air flow :

Normally, an installed fan operates at a constant speed.

Fig.: Relative Power Consumption among Flow

Control Options

But some situations may require a speed change,

for example more airflow may be needed from the

fan when a new run of duct is added, or less air

flow may be needed if the fan is oversized.

SOLIDWORKS

Solid Works is mechanical design automation

software that takes advantage of the familiar

Microsoft Windows graphical user interface.

It is an easy-to-learn tool which makes it possible

for mechanical designers to quickly sketch ideas,

experiment with features and dimensions, and

produce models and detailed drawings.

A Solid Works model consists of parts, assemblies,

and drawings.

Typically, we start with a sketch, make a base

element, and after that add more highlights to the

model. (One can likewise start with a insert

surface or strong geometry).

We are allowed to refine our plan by including,

changing, or reordering highlights.

Associativity between parts, assemblies, and

drawings that progressions made to one view are

consequently made to every other view.

We can create illustrations or congregations

whenever in the design procedure.



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Solid works mechanical design robotization

programming is a component based, parametric

strong demonstrating configuration instrument which

preferred standpoint of the simple to learn windows

TM graphical user interface. We can make

completely relate 3-D strong models with or without

while using programmed or client characterized

relations to catch plan purpose.

Outline aim is the means by which the maker of the

part needs it to react to changes and updates. For

instance, you would need the gap at the highest point

of a drink can to remain at the best surface, paying

little respect to the stature or size of the can. Strong

Works enables you to determine that the opening is

an element on the best surface, and will then respect

your plan aim regardless of what the stature you later

provided for the can. Several factors add to how we

catch outline purpose are Automatic relations,

Equations, added relations and dimensioning.

Several ways a part can be builded like

Layer-cake approach: The layer-cake approach

constructs the section one piece at a time, including

each layer, or feature, onto the past one.

Potter’s wheel approach:

The potter's wheel approach manufactures the part as

a solitary rotated feature. As a solitary draw speaking

to the cross area incorporates all the data and

measurements important to influence the part as one

to include.

Manufacturing approach:

In an assembly, the simple to draw relations is mates.

Similarly as outline relations characterize conditions,

for example, tangency, parallelism, and concentricity

as for portray geometry, get together mates

characterize identical relations as for the individual

parts or segments, permitting the simple development

of assemblies. Solid Works likewise incorporates

extra propelled mating highlights, for example,

designed gear and cam supporter mates, which permit

displayed, adapt congregations to precisely recreate

the rotational development of a real apparatus

prepare.

At long last, sketches can be made either from parts

or congregations. Perspectives are naturally produced

from the strong model, and notes, measurements and

resistances would then be able to be effortlessly

added to the illustration as required. The illustration

module incorporates most paper sizes and norms.

A Solid Works display comprises of parts,

assemblies, and drawings.

(1) Part: Individual segments are attracted the type of

part illustrations.

(2) Assembly: The individual parts are collected in

this district.

(3) Drawings: This contains definite data of the get

together.

MODELLING OF CENTRIFUGAL BLOWER :

Draw a basic sketch

Revolve the above sketch

Draw basic blade profile sketch



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Extrude the sketch

Circular pattern the blade with total of 6

For 8 blades

For 10 blades

Now the centrifugal blower blade design is complete

Model of centrifugal blower is

Fig : Final design of centrifugal blower blade

INTRODUCTION TO SIMULATION

Solid Works Simulation is a plan investigation

framework completely coordinated with Solid

Works. Strong Works Simulation gives recreation

answers for straight and nonlinear static, recurrence,

clasping, warm, weariness, weight vessel, drop test,



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direct and nonlinear dynamic and streamlining

examinations.

Powered by quick and exact solvers, Solid Works

Simulation empowers you to tackle huge issues

instinctively while you plan. Solid Works Simulation

comes in two packs: Solid Works Simulation

Professional and Solid Works Simulation Premium to

fulfill your investigation needs. Solid Works

Simulation abbreviates time to showcase by sparing

time and exertion in hunting down the ideal plan.

Fig8: Simulation example

Benefits of Simulation:

Subsequent to building your model, you have to

ensure that it performs effectively in the field.

Without investigation devices, this assignment must

be replied by performing costly and tedious item

advancement cycles. An item advancement cycle

regularly incorporates the accompanying advances:

1. Building your model.

2. Building a model of the outline.

3. Testing the model in the field.

4. Evaluating the consequences of the field tests.

5. Modifying the outline in light of the field test

comes about.

Basic Concepts of Analysis:

The product utilizes the Finite Element Method

(FEM). FEM is a numerical system for examining

building outlines. FEM is acknowledged as the

standard investigation technique because of its all

inclusive statement and reasonableness for PC

execution. FEM partitions the model into numerous

little bits of straightforward shapes called elements

adequately supplanting a mind boggling issue by

numerous basic issues that should be unraveled all

the while.

CAD model of a

part

Model subdivided into small

pieces (elements)

Elements share regular focuses called nodes. The

way toward isolating the model into little pieces is

called meshing.

The conduct of every component is notable under all

conceivable help and load situations. The limited

component technique utilizes elements with various

shapes.

The reaction anytime in an element is interjected

from the reaction at the element nodes. Every node is

completely depicted by various parameters relying

upon the investigation compose and the element

utilized. For instance, the temperature of a node

completely depicts its reaction in warm examination.

For auxiliary examinations, the reaction of a node is

depicted, when all is said in done, by three

interpretations and three pivots. These are called

degrees of flexibility (DOFs). Examination utilizing

FEM is called Finite Element Analysis (FEA).

A tetrahedral element. Red dots represent nodes.

Edges of an element can be curved or straight.

The software details the conditions administering the

conduct of every element contemplating its

availability to different elements. These conditions



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relate the reaction to known material properties,

restraints, and loads.

Analysis Steps:

The steps needed to perform an analysis depend on

the study type. You complete a study by performing

the following steps:

Create an investigation characterizing its

examination write and options.

If required, characterize parameters of your

investigation. A parameter can be a model

measurement, material property, force value, or

any other input.

Define material properties.

Specify restrictions and burdens.

The program naturally makes a mixed work

when diverse geometries (solid, shell, auxiliary

individuals and so on.) exist in the model.

Define part contact and contact sets.

Mesh the model to separate the model into

numerous little pieces called elements. Fatigue

and optimization thinks about utilize the lattices

in referenced examinations.

Run the examination.

View comes about.

Specific capabilities of Solid works Simulation:

1. Static Analysis:

At the point when loads are connected to a body, the

body twists and the impact of burdens is transmitted

all through the body. The outside loads incite inward

loads and responses to render the body into a

condition of balance. Linear Static examination

displacements, strains, stresses, and response forces

under the impact of connected loads.

2. Thermal Stress Analysis:

Changes in temperature can actuate considerable

misshapenness, strains, and stresses. Thermal stress

examination alludes to static analysis that

incorporates the impact of temperature.

Perform thermal stress examination utilizing one of

the accompanying choices:

• Using a uniform ascent or drop in

temperature for the entire model.

• Using a temperature profile coming about

because of a consistent state or thermal

analysis.

• Using a temperature profile from Flow

Simulation.

3. Frequency analysis :

On the off chance that the plan is subjected to

dynamic situations, static examinations can't be

utilized to assess the reaction. Recurrence studies can

enable you to stay away from reverberation and plan

vibration confinement frameworks. They additionally

frame the reason for assessing the reaction of straight

powerful frameworks where the reaction of a

framework to a dynamic domain is thought to be

equivalent to the summation of the commitments of

the modes considered in the investigation.

4. Dynamic analysis :

Dynamic investigation include:

Design auxiliary and mechanical

frameworks to perform without

disappointment dynamic environment.

Modify framework's qualities (i.e.,

geometry, damping systems, material

properties, and so forth.) to lessen vibration

impacts.

5. Buckling analysis :

Used to calculate the clasping loads and decide the

clasping mode shape. Both linear (Eigen esteem) and

nonlinear buckling investigations are conceivable.

6. Non-linear static analysis:



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Every single genuine structure carryon non-linearly

somehow at some level of stacking. At times, straight

investigation might be sufficient. In numerous

different cases, the straight arrangement can deliver

incorrect outcomes in light of the fact that the

presumptions whereupon it is based are abused. Non

linearity can be caused by the material conduct,

extensive removals, and contact conditions. We can

utilize a nonlinear report to take care of a direct issue.

The outcomes can be marginally extraordinary

because of various procedures. In the nonlinear static

investigation, dynamic impacts like inertial and

damping powers are not considered.

7. Drop test studies :

Drop test examines assess the impact of the effect of

a section or assembly with an inflexible or adaptable

planar surface. Dropping a protest on the floor is a

commonplace application and henceforth the name.

The program figures effect and gravity stacks

naturally. No different load or limitations are

permitted.

8. Fatigue Analysis :

Weakness is the prime reason for the disappointment

of numerous items, particularly those made of metals.

Cases of disappointment because of weariness

incorporate, pivoting hardware, jolts, plane wings,

customer items, seaward stages, ships, vehicle axles,

bridges, and bones.

9. Pressure vessel Design study :

In a Pressure Vessel Design study, you combine the

results of static studies with the desired factors. Each

static study has a different set of loads that produce

corresponding results. These loads can be dead loads,

live loads (approximated by static loads), thermal

loads, seismic loads, and so on. The Pressure Vessel

Design study combines the results of the static

studies algebraically using a linear combination or

the square root of the sum of the squares (SRSS).

INTRODUCTION TO ANSYS

ANSYS 16.0 conveys creative, emotional

reproduction innovation progresses in each, real

physics teach, alongside changes in figuring pace and

upgrades to empowering advances, for example,

geometry taking care of, cross section and post-

preparing. These progressions alone speak to a

noteworthy advance ahead on the way ahead in

Simulation Driven Product Development. Yet,

ANSYS has come to considerably facilitate by

conveying this innovation in an inventive

reenactment structure, ANSYS Workbench 16.0. The

ANSYS Workbench condition is the paste that ties

the reproduction procedure; this has not changed with

version.16.0. In the first ANSYS Workbench, the

client cooperated with the investigation in general

utilizing. The stage's undertaking page: propelling the

different applications and following the subsequent

documents utilized during the time spent making an

examination. Tight joining between the segment

applications yielded remarkable usability for setup

and arrangement of even complex multi material

science reproductions.

Fig.9: Ansys simulation

In ANSYS 16.0, while the inside applications may

have all the earmarks of being conspicuous, they are

bound together through the inventive assignment

page that exhibits the possibility of the endeavor.

This builds up the endeavor page thought. Rather

than offer a direct summary of records, the endeavor

schematic shows a careful point of view of the entire



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examination wander fit as a fiddle in which express

data associations are quickly obvious. Building and

connecting with these flowcharts is immediate.

Analysis Types:

The different type of analysis that can be performed

in ANSYS

1. Structural static analysis:

2. Structural dynamic analysis

3. Structural buckling analysis

Linear buckling

Non linear buckling

4. Structural non linearity

5. Static and dynamic kinematics analysis

6. Thermal analysis

7. Electromagnetic field analysis

8. Electric field analysis

9. Fluid flow analysis

Computational fluid dynamics

Pipe flow

10. Coupled-field analysis

Advantages of ANSYS:

1. The ANSYS program is an adaptable and practical

device which helps in the diminishment of modify on

model.

2. ANSYS program is a graphical UI that encourages

the clients with simple and instinctive way to

program orders, documentation and capacities.

3. Keeping in mind the end goal to diminish the

creation costs, ANSYS empowers to improve the

plan in the advancement procedure itself.

4. ANSYS program helps in outlining the PC models

and concentrate the physical reactions, for example,

feelings of anxiety, temperature appropriation.

Steps in Solving:

To solve ANSYS problem analytically, we need to

define:

1. Solution domain

2. Physical model

3. Boundary condition

4. Physical properties

Analysis of centrifugal blower blade

MATERIAL PROPERTIES:

Static structural analysis

Model:

Fixed

Force: 1500N

Mesh

Material: ALLOY STEEL

Stress



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Total deformation

Strain

MATERIAL: CAST CARBON STEEL

Stress:

Strain:

Deformation:

MATERIAL: WROUGHT STAINLESS STEEL

Stress:

Strain:

Deformation:

MATERIAL: HIGH CARBON STEEL

Stress:

Strain:

Deformation:

These are the static structural analysis figures of 6

blade centrifugal blower similarly for 8 blades and 10

blades, results are given below

FLOW SIMULATION

Solid works flow simulation introduction:

Solid Works Flow Simulation 2016 is a fluid flow

analysis add-in package that is available for Solid

Works in order to obtain solutions to the full Navier-

Stokes equations that govern the motion of fluids.

Other packages that can be added to Solid Works

include Solid Works Motion and Solid Works

Simulation. A fluid flow analysis using Flow



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Simulation involves a number of basic steps that are

shown in the following flowchart in figure.

Fig.: Flowchart for fluid flow analysis using Solid

works Flow Simulation

Meshing in solid works flow simulation:

The Solid Works Flow Simulation mesh consists of

cells in the form of rectangular parallelepipeds. The

Flow Simulation mesh can contain basic cells of

three different types: fluid cells, partial cells and solid

cells see figure below. Basic cells can be split during

the process of refinement. During refinement, each

basic cell is split in eight smaller cells with the same

volume.

Fig.: Different types of mesh shells

Fig.: Refinement of rectangular parallelepiped

Calculation control options:

There are a number of ways in which you can control

your calculations, see table 1.3. As shown in the table

the finishing conditions include refinement number,

iterations, calculation time and travels. Travel is

defined as the number of iterations related to the

propagation of a perturbation through the

computational domain.

Table.: List of calculation control options

Inserting boundarv conditions:

Boundary conditions are required for both the inflow

and outflow faces of internal flow regions with the

exception of enclosures subjected to natural

convection. Visualization of boundary conditions can

be shown with anows of different colors indicating

the type and direction of the boundary condition. The

boundary conditions are divided in three different

types: flow openings, pressure openings and walls.

Table.: List of available boundary conditions in Solid

Works Flow Simulation

Choosing goals:

Goals are criteria used to stop the iterative solution

process. The goals are chosen from the physical

parameters of interest to the user of Flow Simulation.

The use of goals minimizes errors in the calculated

parameters and shortens the total solution time for the

solver. There are five different types of goals:

Global goals, point goals, surface goals, volume

goals and equation goals. The global goal is based on

parameter values determined everywhere in the flow



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field whereas a point goal is related to a specific

point inside the computational domain.

PROCESS OF FLOW SIMULATION

For 6 BLADES:

BOUNDARY CONDITIONS:

Static pressure: 101325 Pa

Inlet velocity: velocity at inlet 14m/s

Select the rotating region give the angular velocity up

to 13000 rpm

Velocity counters

Pressure contours

Velocity flow trajectories

Pressure flow trajectories

For 8 BLADES:

Velocity counters

Pressure contours



For 10 BLADES:

Velocity counters

Pressure contours



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These are the flow analysis figures of Centrifugal

rotor blade

RESULTS:

Static simulation results :

For 6 Blades

For 8 Blades

For 10 Blades

Flow simulation results:

By following the above methods modeling of

centrifugal blower has been done by using solid

works software and also using solid works flow

simulation the flow analysis is done to calculate the

velocity and pressure distribution of the centrifugal

blower.

The boundary conditions are taken as inlet velocity

14m/s and pressure at outlet is considered as

atmospheric pressure and the angular velocity of the

centrifugal blower fan is taken as 13000 RPM. After

completing the analysis the velocity at out let is

approximately 292.795 m/s the outlet velocity is

mainly depend on the angular velocity of the blower

fan.

The static analysis of blower fan has been done using

solid works simulation software. In the simulation

process we consider the forces on the fan blade is

nearly 1500N .And also we have consider three

different materials for fan blade and execute the

analysis on each material.

CONCLUSION:

Modeling and simulation of centrifugal blower

with 6, 8 and 10 blades are been done by using

solid works software.

The materials used in this project are Alloy steel,

Cast Carbon steel, Wrought Stainless Steel and

High Carbon steel.

The results of 6 blades, 8 blades and 10 blades

are tabulated.

Comparing all blades results, 10 blades shows

the optimum values.

The static analysis values High carbon steel has

low stress and deformation values compared

with other three materials.

For grate life time and effective working High

carbon steel has shown better resistance against

the applied load.

CFD analysis of centrifugal blower has been

done using solid works flow simulation.

The effective working of the centrifugal blower

can be analyzed by using flow simulation

software.



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It is observed that the Velocity at out let is

decreased compared to inlet and Pressure

increases at outlet.

REFERENCES

[1]. Michel Tournour, Zoubida El Hachemi, Alex

Read, Fred Mendonca, Fabio Barone and Paolo

Durello, “Investigation of tonal Noise radiated by

subsonic fans using the Aero-Acoustic analogy”,

FAN NOISE 2003 International Symposium Senlis,

23-25 September 2003.

[2]. Raymond A. Loew, Joel T. Lauer, Joseph

McAllister and Daniel L. Sutliff, “Advanced noise

control Fan”, Twenty-Fifth Aerodynamic

Measurement Technology and Ground Testing

Conference sponsored by the American Institute of

Aeronautics and Astronautics, San Francisco,

California, June 5- 8, 2006.

[3]. Jeon Wan-Ho and Lee Duck-Joo, “A numerical

study on the flow and sound fields of centrifugal

impeller located near a wedge”, Journal of sound and

vibration, Volume 266, Number 4, pp. 785-804, 2003

[4]. Christopher L. Banks and Sean F. Wu,

“Prediction and reduction of centrifugal blower

noises” Journal of Acoustical Society of America,

Volume 103, Number 5, pp. 3045-3045, May 1998.

[5]. Jianfeng MA, Datong QI and Yijun MAO,

“Noise reduction for centrifugal fan with non-

isometric forward-swept blade impeller”, Energy

Power Engineers, Volume 2, Number 4, pp. 433–437,

2008. Design & Analysis of Centrifugal Blower

using Composite Materials www.iosrjournals.org 25 |

Page

[6]. M. Carudina, “Noise generation in vane axial

fans due to rotating stall and surge”, Journal of

Mechanical Engineering Science, Volume 215,

Number 1, pp. 57-64, 2001.

[7]. S. Kolla, Y. Anil Kumar and S. Rajesh, “Noise

reduction in air blower casing using composites”,

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BIOGRAPHIES

STUDENT:

Mr. SONTREDDY SATISH, Mtech Engineering

Student, Department of Mechanical Engineering,

Nalla Narasimha reddy engineering college

Korremula X Road, Chowdariguda, Medchal (dist),

Telangana 500088

Tel: 91 9502671028

Mail id:[email protected]

GUIDE:



ISSN NO:2236-6124

Page No:1018

Dr. K. B. G. TILAK M. E, MISTE, MIRED, (Ph D),

Assistant Professor, Department of Mechanical

Engineering Nalla Narasimha reddy engineering

college Korremula X Road, Chowdariguda, Medchal

(dist), Telangana 500088

Mail id: [email protected]



ISSN NO:2236-6124

Page No:1019

design and flow simulation of centrifugal blower by...

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