International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 09 | Sep 2024
p-ISSN: 2395-0072
www.irjet.net
Numerical simulation and optimizing multistage pump performance Adity Sharma1, Ghanshyam Dhanera2, Purushottam Sahu3, Ravi 4 1Research Scholar,
2Ghanshyam Dhanera, Professor, Dept. of Mechanical Engineering, BM College, MP, Indore 2Purushottam Sahu, Professor, Dept. of Mechanical Engineering, BM College, MP, Indore
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - The increasing demand for high-head fluid supply in today's industrial revolution and fast-paced world makes multistage pumps an essential component in various applications. Their growing popularity stems from their ability to efficiently handle high-head requirements. Performance analysis and head loss evaluation of these pumps are crucial not only for economic reasons but also for energy conservation, given that multistage pumps account for approximately 22 percent of global energy consumption.
This study aims to analyze head losses in different components of multistage pumps and investigate how the number of vanes in the diffuser affects these losses under various operating conditions. A numerical simulation analysis of a two-stage centrifugal pump was conducted to achieve this objective. The results focus on the head loss and performance parameters of the two-stage centrifugal pump, providing valuable insights into optimizing pump design and operation for better efficiency and reduced energy consumption.
Figure 1.4: Classification of centrifugal. Centrifugal pumps represent a dynamic class of machinery employed to facilitate the conveyance and displacement of fluids in a myriad of industrial, commercial, and residential contexts. Relying on the centrifugal force principle, these pumps harness rotational energy to endow the fluid with kinetic energy, subsequently translated into pressure energy. Their optimal performance is particularly notable in scenarios characterized by elevated flow rates and moderate-to-high head demands.
Key Words: Multistage pump, Impellers, Diffuser, Return Channels
1. INTRODUCTION 1.2 CENTRIFUGAL PUMPS A rot dynamic type of pump is a centrifugal pump. It operates on the forced vortex theory. A centrifugal pump uses centrifugal force to carry out pumping operations. The impeller, which has several mounted vanes, rotates about an axis and causes liquid to be thrown outward by centrifugal force, resulting in the creation of two distinct pressure zones along the impeller's radial direction. Liquid flow is made possible by the impeller's center having lower pressure than its outer edges, which have higher pressure.
Salient attributes and characteristics of centrifugal pumps encompass: Impeller Mechanism: Central to centrifugal pumps is the impeller—a core rotating element. The impeller's rotation within the pump housing engenders centrifugal force, propelling the fluid outward radially from the impeller's nucleus. Energy Transformation: The outward propulsion of the fluid by the impeller augments its velocity, resulting in the conversion of mechanical energy into kinetic energy.
The inlet pipe, impeller, diffuser or volute casing, and outflow pipe are a centrifugal pump's primary parts. Industrial, home, and other uses for centrifugal pumps include power plants, among others. These work within a specific range of discharge and are designed in accordance with the application. Radial flow pumps, axial flow pumps, mixed flow pumps, single stage pumps, multistage pumps, etc. are some of the subtypes of centrifugal pumps.
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Impact Factor value: 8.315
Pressure Generation: Subsequent to the kinetic energy infusion, the fluid's energy metamorphoses into pressure energy upon interaction with stationary pump casing components like the volute or diffuser. Suction and Ejection: Fluid ingress occurs through an inlet, often designated as the suction port. The pressurized fluid is then expelled through an outlet or discharge port.
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