Optimization of Centrifugal Pump Impeller for Pumping Viscous Fluids Using Direct Design Optimization Technique

Kim, Bubryur; Siddique, M. H.; Samad, Abdus; Hu, Gang; Lee, Dong‐Eun

doi:10.3390/machines10090774

Cited by 12 publications

(9 citation statements)

References 37 publications

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“…In general, almost all literature covers classical methods of calculation and design of centrifugal pumps for pumping Newtonian, non-Newtonian liquids and even gas-liquid mixtures [14][15][16][17][18][19].…”

Section: Using Modern Mechanical Design Methods For Determining the M...mentioning

confidence: 99%

Using Modern Mechanical Design Methods for Determining the Main Characteristics of a Cryogenic Centrifugal Pump

2023

IJOMAM

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The paper is devoted to the study of the flow structure of liquid nitrogen in centrifugal pumps and determination of the energy and kinematic characteristics of the flow in the impeller of the support cryogenic pump of the mobile nitrogen units. An analysis of modern technical solutions in this field was made identifying their advantages and disadvantages. The work examines the processes and specifics of the flow of liquid nitrogen in the impeller flow part. Integral characteristics, such as differential pressure (head) and hydraulic efficiency, of the impeller during pumping liquid nitrogen and water were obtained using modern modelling tools. An increase in hydraulic losses in the impeller during pumping of liquid nitrogen in the area containing curved channels and rotation was detected. This contradicts the tendency of loss reduction in a fixed pipe, where differential pressure is much smaller than during pumping water. A study of different configurations of booster pumps was made. According to mechanical approaches to the hydraulic equipment design, it was justified that reduced number of impeller blades (4 blades) ensures the operation of the unit in a required efficiency range. As a result of spatial modelling of the flow using the free open source CFD software OpenFOAM, distributions of the main kinematic characteristics of the flow were obtained. It was found that the physical properties of liquid nitrogen do not have a significant effect on the main parameters of centrifugal pumps, such as efficiency and pressure (the hydraulic efficiency during pumping of liquid nitrogen is only 2-5% lower than during pumping water).

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Section: Using Modern Mechanical Design Methods For Determining the M...mentioning

confidence: 99%

Using Modern Mechanical Design Methods for Determining the Main Characteristics of a Cryogenic Centrifugal Pump

2023

IJOMAM

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“…This was achieved using the centrifugal pump design (CPD) module available in Ansys software 2022 R1 [28]. Furthermore, the impeller of the pump was further specified using BladeGen [29]. The irregular mesh was then transformed into a regular mesh with an appropriate mesh size, as illustrated in Figure 2.…”

Section: Numerical Modelmentioning

confidence: 99%

Selection and Performance Prediction of a Pump as a Turbine for Power Generation Applications

et al. 2023

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The high price of purpose-made turbines always represents an active challenge when utilizing pico- and micro-hydropower resources. Pumps as turbines (PATs) are a promising option to solve the problem. However, the selection of a suitable pump for a specific site and estimating its performance in the reverse mode are both major problems in the field. Therefore, this paper aims to develop generic mathematical correlations between the site and the pump hydraulic data, which can be used to select the optimal operation of the pump as a turbine. A statistical model and the Pearson correlation coefficient formula were employed to generate correlations between the flow rate and the head of the pumps with the sites. Then, Ansys CFX, coupled with SST k-ω and standard k-ε turbulence models, was used to analyze the performance of the PAT. The analysis was conducted in terms of flow rate, pressure head, efficiency, and power output. The numerical results were validated using an experimental test rig. The deviations of the proposed correlations from the statistical model were found to be in the range of −0.2% and 1.5% for the flow rate and ±3.3% for the pressure head. The obtained numerical outputs using the standard k-ε turbulence model strongly agreed with the experimental results, with variations of −1.82%, 2.94%, 2.88%, and 1.76% for the flow rate, head, power, and efficiency, respectively. The shear stress transport (SST) k-ω turbulence model showed relatively higher deviations when compared to standard k-ε. From the results, it can be concluded that the developed mathematical correlations significantly contribute to selecting the optimal operation of the pump for power-generating applications. The adopted numerical procedure, selected mesh type, turbulence model, and physics setup provided good agreement with the test result. Among the two turbulence models, the standard k-ε performs better in estimating the pressure head, output power, and efficiency of the PAT with less than 3% errors when compared to experimental results.

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“…Angka ini menurun menjadi sekitar 1350 gpm saat memompa oli dengan viskositas 400 cP dengan kecepatan putaran yang sama [7]. Ketika viskositas cairan pemompaan jauh lebih tinggi daripada air, kurva kinerja menyimpang dari realitasnya [8], atau dapat dikatakan bahwa kinerja pompa sangat dipengaruhi oleh viskositas cairan [9]. Pada putaran 2900 rpm head pompa dapat mencapai 38 m pada debit 25 m 3 /h, Efesiensi maksimum 75% pada debit 60 m 3 /h [10], hal serupa diperoleh pada penelitian pompa dengan aliran dua phasa [11].…”

Section: Pendahuluanunclassified

“…Tidak ada volume tertutup momentum fluida ditingkatkan ketika melewati kanal terbuka dan kemudian kecepatan tingginya mengubah ke tekanan meningkat dengan keluar ke bagian diffuser. Nilai viskositas sangat berpengaruh terhadap pompa sentrifugal [7][8] [9].…”

Section: Parameter-parameter Pompaunclassified

EVALUASI KINERJA POMPA SENTRIFUGAL BERKAPASITAS 600 KL/Hr PADA SISTEM PEMOMPAAN MINYAK

Rumaherang,

Refwalu,

Tupamahu

et al. 2023

metiks

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Pompa sentrifugal adalah pompa dengan efisiensi tinggi, konstruksi sederhana dan banyak digunakan di dunia. Pompa sentrifugal modern saat ini beroperasi dengan efesiensi lebih dari 70% pada berbagai nilai putaran. Namun kesesuaian kerja dengan sistem pemompaan merupakan masalah penting dalam engineering dimana pompa harus dipilih sesuai kebutuhan system sehingga dapat bekerja dengan baik dan effisien. Pemilihan dan pengoperasian pompa untuk aplikasi didasarkan pada kurva karakteristik dan penggunaannya. Karakteristik pompa adalah prestasi pompa dalam bentuk grafik hubungan antara head (H), daya (P) dan efesiensi (η) terhadap debit (Q). Parameter-paramater ini menandai prestasi kerja dan biaya operasi pompa. Nilai performance optimal pemompaan merupakan masalah yang perlu diselesaikan dengan tujuan menentukan performance optimal. Analisis dilakukan secara teoritis dan membandingkanya dengan data lapangan yang tersedia. Secara teoritis popam hasil perhitungan bekerja pada kondisi optimum dimana parameter-parameter operasi berada poda nilai efesiensi pompa maksimum. .Head operasi optimal pompa berada pada nilai Q/Qd =1,28 atau pada nilai debit Q = 0,054 m3/s dan daya diberikan oleh pompa mencapai kondisi maksimum, dimana efesiensi maksimum adalah 70%. Karena hasil perhitungan head pompa menunjukan hasil yang hampir mendekati nilai head aktual hasil pengamatan, sehingga dapat disimpukan bahwa hasil perhitungan teoritis dapat digunakan sebagai pertimbangan dalam perencanaan dan oprasi system pemompaan

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Optimization of Centrifugal Pump Impeller for Pumping Viscous Fluids Using Direct Design Optimization Technique

Cited by 12 publications

References 37 publications

Using Modern Mechanical Design Methods for Determining the Main Characteristics of a Cryogenic Centrifugal Pump

Using Modern Mechanical Design Methods for Determining the Main Characteristics of a Cryogenic Centrifugal Pump

Selection and Performance Prediction of a Pump as a Turbine for Power Generation Applications

EVALUASI KINERJA POMPA SENTRIFUGAL BERKAPASITAS 600 KL/Hr PADA SISTEM PEMOMPAAN MINYAK

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