International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 03 Issue: 01 | Jan-2016
p-ISSN: 2395-0072
www.irjet.net
Design & Analysis of Centrifugal Pump Impeller by FEA Mane Pranav Rajanand, ME Student, Department of Mechanical Engineering V.V.P. Institute of Engineering & Technology, Solapur, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------1. PROBLEM IDENTIFICATION: Abstract - A centrifugal pump is a rot dynamic pump that uses a rotating impeller to increase the pressure of a
Most of the centrifugal pump impellers are made up with
fluid. Centrifugal pumps are commonly used to move
Mild Steel which has more density. This is main cause of
liquids through a piping system. The fluid enters the pump
high weight of pump. In addition to this it has high
impeller along or near to the rotating axis and is
corrosion and less fatigue strength.
accelerated by the impeller, flowing radially outward into
The mild steel can be replaced with alloy material (e.g. SS,
a diffuser or volute chamber (casing), from where it exits
Inconel, Aluminum alloys) to reduce the weight, improve
into the downstream piping system. Its purpose is to
corrosion resistance and fatigue strength is more as
convert energy of a prime mover (a electric motor or
compare to different alloys material and composite
turbine) first into velocity or kinetic energy and then into
material. Due to less stiffness, deformations produced for
pressure energy of a fluid that is being pumped.
the same material is more as compared to composite
Centrifugal pumps are used for large discharge through
material and different alloys.
smaller heads. centrifugal pumps converts mechanical
2. LITERATURE SURVEY :
energy from a motor to energy of a moving fluid; some of
[1]. A Syam Prasad, BVVV Lakshmipathi Rao, A Babji, Dr P
the energy goes into kinetic energy of fluid motion, and
Kumar Babu , “Static and Dynamic Analysis of a Centrifugal
some into potential energy, represented by a fluid
Pump Impeller” Alloys are playing major role in many
pressure or by lifting the fluid against gravity to a higher
engineering
level. The transfer of energy from the mechanical rotation
mechanical properties, flexibility in design capabilities,
of the impeller to the motion and pressure of the fluid is
and ease of fabrication. Additional advantages include
usually described in terms of centrifugal force, especially
light weight and corrosion resistance, impact resistance,
in older sources written before the modern concept of
and excellent fatigue strength. In this paper study of static
centrifugal force as a fictitious force in a rotating reference
and modal analysis of a centrifugal pump impeller which is
frame was well articulated. The concept of centrifugal
made of three different alloy materials. (viz., Inconel alloy
force is not actually required to describe the action of the
740, Incoloy alloy 803, Warpaloy) The best material for
centrifugal pump. In this paper analysis on MS & SS pump
design of impeller is Inconel 740. Specific modulus of
impeller is done in order to optimize strength of
Inconel 740 obtained in static analysis is 10 % higher than
centrifugal pump. This paper gives the static & Modal
other material. The natural frequency in modal analysis is
analysis of MS & SS Pump Impeller to check strength of
6%
Pump & vibrations produced by pump.
Inconel 740 in static analysis is reduce by 12%.
Key Words: Analysis, Pump Impeller, Optimization,
[2] Karthik Matta, Kode Srividya, Inturi Prakash , “Static
MS, SS, etc.
and Dynamic Response of an Impeller at Varying Effects”
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applications.
They
offer
outstanding
higher than other material. The deformation of
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