Journal of Siberian Federal University. Engineering & Technologies / Corrosive Fluid Effects on Volute Surface Roughness in Centrifugal Pumps: A Computational Study

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Issue
Journal of Siberian Federal University. Engineering & Technologies. 2025 18 (1)
Authors
Kashif Abbas; Afaque Ahmed Bhutto; Abdulhalim Musa Abubakar; Isa Umaru Usman; Zakiyyu Muhammad Sarkinbaka; Tahiru Saka; Mazen Abdul- Jabbar Alhodali; Mohamed Ellouze
Contact information
Kashif Abbas: Xian Jiaotong University Shaanxi, People’s Republic of China; Afaque Ahmed Bhutto: University of Engineering, Science and Technology (QUEST) Larkana, Islamic Republic of Pakistan; ; Abdulhalim Musa Abubakar: Modibbo Adama University (MAU) Adamawa State, Federal Republic of Nigeria; Isa Umaru Usman: University of Maiduguri (UNIMAID) Maiduguri, Borno State, Federal Republic of Nigeria; Zakiyyu Muhammad Sarkinbaka: Federal University Wukari (FUW) Wukari, Taraba State, Federal Republic of Nigeria; Tahiru Saka: University of Maiduguri (UNIMAID) Maiduguri, Borno State, Federal Republic of Nigeria; Mazen Abdul-Jabbar Alhodali: Yemen LNG Company Balhaf, Republic of Yemen; Mohamed Ellouze: University of Sfax Sfax, Republic of Tunisia
Keywords
impeller volute; centrifugal pump; corrosive fluids; ANSYS; surface roughness; ANSYS
Abstract

Corrosive fluids, namely, hydrogen peroxide (H2O2), hydrochloric acid (HCl) and sulfuric acid (H2SO4) can be used as a working fluid for volute surface roughness to study its impact on an existing H47 centrifugal pump. To analyse the effects of volute surface roughness, ANSYS student version 2023 software was used – wherein; head rise (H), pump speed (N), discharge rate (Q), inlet pressure and roughness height (h) of 20–40 m, 2000 rpm, 144 m3/h, 0 atm and 0.5 m, were respectively specified as initial and boundary conditions in the computational fluid dynamics (CFD) tool. CFD of volute roughness were respectively simulated for all corrosive fluids to obtain pressure and velocity distribution and profile plots of the analysis using fluid constant properties. The presence of volute wall roughness was observed to increase hydraulic losses in the volute when using corrosive fluids. The hydraulic loss in the volute due to wall roughness is influenced by the viscosity of the respective fluids. Denser fluids, like HCl and H2SO4 required more input power for the same flow rate, highlighting the viscosity-dependent nature of hydraulic losses. Smoothing and refining the volute wall may lead to a significant increase in pump performance without compromising impeller flow conditions. Exploring the effects of smoothing and roughening the volute wall on pump performance should be investigated

Pages
102–114
EDN
NTIZNI
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/154412

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