Analysis of fluid-induced force of centrifugal pump impeller with compound whirl

Zhou, Wenjie; Wang, Yifan; Li, Chao; Zhang, Wei-Bin; Wu, Guangkuan

doi:10.1016/j.aej.2020.07.028

Cited by 22 publications

(11 citation statements)

References 25 publications

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“…Hasilnya menyiratkan bahwa hasil yang dihitung dengan mempertimbangkan eksentrisitas impeler lebih dekat dengan data eksperimen daripada tanpa mempertimbangkan pusaran eksentrik. Selain itu, nilai ekstrim gaya impeler yang diinduksi fluida memiliki korelasi positif yang signifikan dengan eksentrisitas impeler [2]. Deteksi pembentukan kavitasi pada mesin turbo hidraulik telah diteliti secara luas karena dampaknya yang signifikan pada operasi yang stabil dan dinamis.…”

Section: Landasan Teori Pengujian Getaran Mesinunclassified

Pengaruh Putaran Poros Pada Pompa Sentrifugal Yang Disusun Paralel Terhadap Karakteristik Vibrasi

Sianturi

Naibaho

2022

JTM

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Pompa merupakan alat yang digunakan untuk mempercepat aliran fluida ketempat yang diperlukan. Pengaruh putaran pada pompa sangat memperngaruhi kecepatan laju aliran menghantarkan fluida tersebut ataupun melakukan daya hisap (suction). Metode penelitian ini dilakukan dengan memvariasi kecepatan putar pada pompa untuk mengetahui getaran yang terjadi akibat variasi putaran tersebut dari sis arah horizontal dan vertical. Hasil penelitian yang telah dilakukan, diperoleh beberapa hasil yang merupakan jawaban dari tujuan penelitian ini . Hasil penelitian yang dilaksanakan dapat disimpulkan sebagai berikut :Dari kedua posisi pengukuran diatas dapat disimpulkan bahwa hasil respon getaran maksimum yang paling rendah terdapat pada pompa di titik P-04 pada n = 500 rpm dengan harga simpangan 0,75 x 10-6 m arah horizontal sedangkan yang paling tinggi terdapat pada pompa dititik P-01 pada n = 500 rpm dengan harga simpangan 1,85x 10-6 m arah horizontal.Dari hasil pengukuran respon getaran yang diukur pada pompa, elektromtor , landasan dapat disimpulkan bahwa simpangan terbesar terjadi pada pompa di titik P-01 dengan harga simpangan 1,85 x 10-6 m arah horizontal, diikuti elektromotor di titik P-05 dengan harga simpangan 1,77 x 10-6 m arah vertikal kemudian landasan di titik P-06 dengan harga simpangan 1,66 x 10-6 m arah vertikal. Dari standart ISO 10816-3 untuk velocirty pada pompa dengan harga tertinggi vertikal 4,56 m/s di titk P-05 dikategorikan pada zona C berwarna kuning, getaran dari mesin dalam batas toleransi dan hanya dioperasikan dalam waktu terbatas, untuk arah horizontal harga tertinggi 4,37 m/s dititik P-02 dikategorikan pada zona B berwarna hijau muda, getaran dari mesin baik dan dapat dioperasikan tanpa larangan.

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Section: Landasan Teori Pengujian Getaran Mesinunclassified

Pengaruh Putaran Poros Pada Pompa Sentrifugal Yang Disusun Paralel Terhadap Karakteristik Vibrasi

Sianturi

Naibaho

2022

JTM

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“…The design of the impeller of the flow system was based on the known algorithm for designing centrifugal centrifugal pumps available in the literature [6,7]. It has been proposed to reverse the direction of the rotor in relation to the drive motor, i.e.…”

Section: Pump Designmentioning

confidence: 99%

On-line pump for very low power heating or cooling system

Goryca

Peczkis

Synowiec³

et al. 2021

MATEC Web Conf.

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The article presents the concept of a new circulation pump for low power heating or cooling system, dedicated to systems where it is necessary to ensure a slight liquid flow during periods of operation at a significantly low efficiency of the systems. The assumption for the construction of the new pump was the possibility of its installation in the pipeline axis. The proposed prototype design includes the application of a patented solution to relieve the axial force acting in a flow system [1,2]. Additionally, a new permanent magnet DC motor designed and manufactured for this pump was used. The design of the pump takes into account the requirement of maximum silence, which results from its intended use in close proximity to human habitation. The design of the pump has been tested numerically. The results of numerical tests are presented. The pump was made in the rapid prototyping technique in a 3D printer. The pump was built into a dedicated test stand with measuring instruments verified in terms of the quality of measurements. A series of measurements was made on the basis of which the flow characteristics of the pump were determined. During the research, risks for the operation of the new structure were identified, which will be taken care of in a further stage of the research, and the structure, after removing the defects, will be directed to production [3].

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“…In recent years, a series of studies on impeller failure are carry out. Qian et al [6 ] established a multivariate regression theoretical model of impeller parameters and multistage pumps to study hydraulic performance and axial force; Li et al [7] studied the eccentric rotor's influence on the excitation force of the sealing ring of the nuclear main pump; Zhou et al [8] investigated the influence of different pump flow parameters on the fluid-induced-force of the impeller; Chen et al [9] analyzed the effect of impeller wear ring clearance on the hydraulic of pumps.…”

Section: Introductionmentioning

confidence: 99%

The effect of the impeller eccentricity on the hydrodynamic characteristics of a centrifugal pump

Fancheng,

Ni,

Liu

2024

J. Phys.: Conf. Ser.

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To explore the effect of impeller eccentricity caused by shaft parallel misalignment on the hydrodynamic characteristics of a centrifugal pump, a numerical simulation model based on computational fluid dynamics (CFD) is established. The SST k-ω turbulence model is used to describe the flow field in centrifugal pump. The eccentric motion of the impeller is described by the sliding mesh method (SMM). The results indicates that the nonuniformity and instability of flow field will be aggravated with the increment of impeller eccentricity, which then reduce the pump head and efficiency to a certain extent. The radial force exerted on the impeller is directly proportional to the eccentricity of the impeller. In addition, the impeller eccentricity has a significant impact on the peak rotation frequency of shaft frequency. This study can provide a numerical reference for eccentricity fault diagnosis and vibration control of centrifugal pump impellers to carry out optimal design and vibration reduction.

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Analysis of fluid-induced force of centrifugal pump impeller with compound whirl

Cited by 22 publications

References 25 publications

Pengaruh Putaran Poros Pada Pompa Sentrifugal Yang Disusun Paralel Terhadap Karakteristik Vibrasi

Pengaruh Putaran Poros Pada Pompa Sentrifugal Yang Disusun Paralel Terhadap Karakteristik Vibrasi

On-line pump for very low power heating or cooling system

The effect of the impeller eccentricity on the hydrodynamic characteristics of a centrifugal pump

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