Research Article

Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine

Volume: 9 Number: 4 December 31, 2025

Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine

Abstract

Water pump performance as a part of the cooling system has a significant effect on engine efficiency. Due to the complex nature of the cavitation and the high cost and unavailability of expensive testing equipment, most researchers conduct numerical studies, but this paper presents an industrial experimental process to investigate the corrosion behavior of the water pump impeller in EF7 engines in high cavitation conditions. Impeller material in the coolant water pump is a sensitive parameter. In the Basa Pars Sanat factory, a polyphenylene sulfide impeller was used in a water pump which had thermal and erosion resistance, but it supplied a low flow rate which is not a proper option to continue the production. So, the most productive impeller with a sheet metal structure was investigated to achieve the highest flow rate and the lowest manufacturing cost. Therefore, choosing a steel alloy with high sheet tension and then electroplating on it is a more reasonable and economical option. In this research, the aim is to investigate the corrosion resistance of water pump impeller with different types of coating, such as dacromet, galvanized and chromate, by cavitation and durability tests. In addition to the test results, the cost and availability of plating should be considered when selecting the coating for the impeller.

Keywords

Supporting Institution

Basa Pars Sanat Company

References

  1. [1] Li W, Li W, Shi W, Ji L, Zhao X. A review of engine cooling water pump. Journal of Drainage and Irrigation Machinery En-gineering. 2016;34(1):9-17. https://doi.org/10.3969/j.issn.1674-8530.15.0182
  2. [2] Li W, Wu P, Yang Y, Shi W, Li W. Investigation of the cavita-tion performance in an engine cooling water pump at different temperature. Proc. Inst. Mech. Eng., Part A: J. Power Energy. 2021;235(5):1094-102. https://doi.org/10.1177/0957650920984646
  3. [3] Li W, Li E, Shi W, Li W, Xu X. Numerical simulation of cavita-tion performance in engine cooling water pump based on a cor-rected cavitation model. Processes. 2020;8(3):278. https://doi.org/10.3390/pr8030278
  4. [4] Wei L, Wang C, Shi W, Zhao X, Yang Y, Pei B. Numerical calculation and optimization designs in engine cooling water pump. J Mech Sci Technol 2017;31:2319-29. https://doi.org/10.1007/s12206-017-0428-2
  5. [5] Li W, Zhao X, Li W, Shi W, Ji L, Zhou L. Numerical prediction and Performance experiment in an engine cooling water pump with different blade outlet widths. Math Probl Eng. 2017;2017(1):8945712. https://doi.org/10.1155/2017/8945712
  6. [6] Kim K, Hwang K, Lee K, Lee K. Investigation of coolant flow distribution and the effects of cavitation on water pump perfor-mance in an automotive cooling system. Int J Energ Res. 2009;33(3):224-34. https://doi.org/10.1002/er.1462
  7. [7] Yin F-l, Nie S-l, Xiao S-h, Hou W. Numerical and experimental study of cavitation performance in sea water hydraulic axial pis-ton pump. Proc. Inst. Mech. Eng., Part I: J. Syst. Control Eng. 2016;230(8):716-35. https://doi.org/10.1177/0959651816651547
  8. [8] Kan K, Binama M, Chen H, Zheng Y, Zhou D, Su W, et al. Pump as turbine cavitation performance for both conventional and reverse operating modes: A review. Renewable Sustainable Energy Rev. 2022;168:112786. https://doi.org/10.1016/j.rser.2022.112786

Details

Primary Language

English

Subjects

Automotive Engineering Materials

Journal Section

Research Article

Early Pub Date

December 16, 2025

Publication Date

December 31, 2025

Submission Date

May 19, 2025

Acceptance Date

August 20, 2025

Published in Issue

Year 2025 Volume: 9 Number: 4

APA
Taherkhani, N., Rahmani, M., & Karimi, M. (2025). Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine. International Journal of Automotive Science And Technology, 9(4), 446-454. https://doi.org/10.30939/ijastech..1702020
AMA
1.Taherkhani N, Rahmani M, Karimi M. Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine. IJASTECH. 2025;9(4):446-454. doi:10.30939/ijastech.1702020
Chicago
Taherkhani, Navid, Mohsen Rahmani, and Mojtaba Karimi. 2025. “Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine”. International Journal of Automotive Science And Technology 9 (4): 446-54. https://doi.org/10.30939/ijastech. 1702020.
EndNote
Taherkhani N, Rahmani M, Karimi M (December 1, 2025) Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine. International Journal of Automotive Science And Technology 9 4 446–454.
IEEE
[1]N. Taherkhani, M. Rahmani, and M. Karimi, “Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine”, IJASTECH, vol. 9, no. 4, pp. 446–454, Dec. 2025, doi: 10.30939/ijastech..1702020.
ISNAD
Taherkhani, Navid - Rahmani, Mohsen - Karimi, Mojtaba. “Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine”. International Journal of Automotive Science And Technology 9/4 (December 1, 2025): 446-454. https://doi.org/10.30939/ijastech. 1702020.
JAMA
1.Taherkhani N, Rahmani M, Karimi M. Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine. IJASTECH. 2025;9:446–454.
MLA
Taherkhani, Navid, et al. “Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine”. International Journal of Automotive Science And Technology, vol. 9, no. 4, Dec. 2025, pp. 446-54, doi:10.30939/ijastech. 1702020.
Vancouver
1.Navid Taherkhani, Mohsen Rahmani, Mojtaba Karimi. Industrial Experimental Comparison of Effect of Different Coatings on Cavitation Behavior in Water Pump of EF7 Engine. IJASTECH. 2025 Dec. 1;9(4):446-54. doi:10.30939/ijastech. 1702020


International Journal of Automotive Science and Technology (IJASTECH) is published by Society of Automotive Engineers Turkey

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