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FEA Analysis of using Para (polyarylamide) Materials in
Radiator Pump Impeller
L.Natrayan1, K.Sathish Kumar
2, E.Aravindraj
3
1PG Scholar, Department of Mechanical Engineering, Selvam College of Technology, Namakkal
2 PG Scholars, Department of Mechanical Engineering, S.A Engineering College, Chennai
3 PG Scholars, Department of Mechanical Engineering, Selvam College of Technology, Namakkal
Abstract—An impeller is a rotating component of a radiator pump, usually made of iron, steel,
bronze, brass, aluminum or plastic, which transfers power from the speed that drives the pump to the
fluid being pumped by accelerating the fluid outwards from the middle of rotation. The swiftness
achieved by the impeller transfers into stress when the external movement of the fluid is limited by
the pump outside. Impellers are usually undersized cylinders with an release inlet (called an eye) to
accept received fluid, vanes to shift forward the fluid radially. The Impellers modeling of the
impeller was done to design by using CATIA V5 R18 solid modeling software. It is future to design
a blower with plastics material, Analyze its strength and deformation using FEM software. In order
to calculate the effectiveness of plastics and metal blower and impeller using FEA (ANSYS). Modal
analysis is performed on PARA material impeller to find out the three different cases of rpm,
pressure and temperature.
Keywords— Impeller, fluid, Drive shaft, CATIA V5 R18, FEM (Ansys), PARA Material.
I. INTRODUCTION Centrifugal pumps, compressors, and blowers utilize various impeller designs that are an
essential component for bulk transport of fluids. Typically, a motor is used to spin a shaft that is
connected to a housed impeller, which draws fluid in along a rotating axis. The fluid is accelerated
and whirled radially and tangentially outward through the impeller vanes, where it exits through a
casing designed to decelerate the fluid velocity and increase fluid pressure. Centrifugal pumps are
susceptible to various modes of impeller failure including but not limited to inter granular corrosion,
erosion, cavitations, material defects. An impeller is a rotating component of a radiator pump,
usually made of iron, steel, bronze, brass, aluminum or plastic, which transfers energy from the
motor that drives the pump to the fluid being pumped by accelerating the fluid outwards from the
center of rotation. The velocity achieved by the impeller transfers into pressure when the outward
movement of the fluid is confined by the pump casing. Impellers are usually short cylinders with an
open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined,
keyed or threaded bore to accept a drive-shaft. The impeller made out of cast material in many cases
may be called rotor, also. It is cheaper to cast the radial impeller right in the support it is fitted on,
which is put in motion by the gearbox from an electric motor, combustion engine or by steam driven
turbine. The rotor usually names both the spindle and the impeller when they are mounted by bolts.
II. PARA MATERIAL ( polyarylamide)
PARA (polyarylamide) provides a unique combination of strength and aesthetics,
making it ideal for complex parts that require both overall strength and a smooth, beautiful surface. It
compounds typically contain 50-60% glass fiber reinforcement, giving them remarkable strength and
rigidity. What makes them unique is that even with high glass loadings, the smooth, resin-rich
surface delivers a high-gloss, glass-free finish that’s ideal for painting, metallization or producing a
naturally reflective shell.
International Journal of Modern Trends in Engineering and Research (IJMTER) Volume 03, Issue 04, [April– 2016] ISSN (Online):2349–9745 ; ISSN (Print):2393-8161
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3.1 High flow into thin walls In addition, PARA is an extremely high-flow resin so it can readily fill walls as thin as 0.5
mm, even with glass loadings as high as 60%.
3.2 Excellent Surface Finish
Superb, resin-rich surface provides a highly polished appearance, even with high glass fiber
content .The tensile and flexural strength of compounds are similar to many cast metals and alloys at
ambient temperature. It (60% glass fiber) exhibits typical values of 280 Mpa and 400 Mpa
respectively at 23°C (73°F).
III. PROPERTIES COMPARISON
Tensile properties comparison*
Material PARA (50%
glass fiber) Tin Bronze Brass Annealed Zinc
Zinc Alloy (4%
Al, 0.04% Mg)
Tensile
Strength At
Break, Mpa
280 300 250 150 280
Tensile
Modulus, Gpa 20 105 105 105 85
Table 4.1 Tensile Properties
Fig 4.1 Flexural Strength vs. Flexural Modulus Fig 4.2 Tensile Strength vs. Tensile Modulus
IV. ANALYSIS REPORT FOR IMPELLER AND SHAFT
Model View of Impeller and Shaft
Fig 5.1 Check Rpm Only Fig 5.1 Meshing Impeller And Shaft
International Journal of Modern Trends in Engineering and Research (IJMTER) Volume 03, Issue 04, [April– 2016] ISSN (Online):2349–9745 ; ISSN (Print):2393-8161
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Case 1: Check RPM Only
Fig 5.3 Vonmises stress Fig 5.4 Total deformation
Case 2: To Check Pressure + Rpm
Fig 5.5 Vonmises stress Fig 5.6 Total deformation CASE 3: To Check Rpm+Pressure+Temperature 50°C
Fig 5.6 Vonmises stress Fig 5.7 Total deformation
Case 4 : To Check Rpm+Pressure+Temperature 70°C
Fig 5.8 Vonmises stress Fig 5.9 Total deformation
International Journal of Modern Trends in Engineering and Research (IJMTER) Volume 03, Issue 04, [April– 2016] ISSN (Online):2349–9745 ; ISSN (Print):2393-8161
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To Check Rpm+Pressure+Temperature 90°C
Fig 5.8 Vonmises stress Fig 5.9 Total deformation
V. CALCULATION
Temperature at 50°C
Factor of safety = Yield strength/von mises stress
=280 mpa/56.7746 mpa, =4.93
Temperature at70°C
Factor of safety = Yield strength/von mises stress
=280/113.677 =2.46
Temperature at 90°C
Factor of safety = Yield strength/von mises stress
=280/170.58 =1.64
VI. CONCLUSION: If the three cases of PARA material using to check various temperature at the Vonmises stress
and total deformation compared at the high temperature 90°C factor of safety is better. By using
polyarylamide impeller corrosion will be reduced. Compare to aluminium plastics less weight and less
cost, Easy any shape , Life compare to other material is high
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