Browse > Article
http://dx.doi.org/10.7467/KSAE.2012.20.5.095

A Study on Thermo-flow Characteristics Analysis of Electric Water Pump  

Kim, Sung-Chul (Green Car Powertrain R&D Division, Korea Automotive Technology Institute)
Song, Hyeong-Geun (R&D Center, Myunghwa Industry Company)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.5, 2012 , pp. 95-101 More about this Journal
Abstract
An electric water pump for engine cooling system has an advantage which particularly in the cold start, the use of the electric water pump saves fuel and leads to a corresponding reduction in emissions. The canned type electric water pump without mechanical sealing elements was selected to meet the requirements for operational reliability and life. However, the electric water pump for internal combustion engine generates much more heat loss than for hybrid electric vehicle since it is operated by the electric power of high current and low voltage. In this study, the fluid flow and thermal characteristics of the canned type electric water pump as an inverter integrated water pump has been investigated under the effects of heat generation. The analysis conditions such as outdoor air temperature of $125^{\circ}C$, water pump speed of 6000 rpm, coolant temperature of $106^{\circ}C$ and coolant flow rate of 120 L/min was used as a standard condition. Therefore, flow fields and temperature distribution inside the water pump were obtained. Also, we checked the feasibility of the canned type for the electric water pump in comparison with the mechanical seal type.
Keywords
Canned type; Electric water pump; Thermal analysis; CFD;
Citations & Related Records
연도 인용수 순위
  • Reference
1 E. G. Ribeiro, A. P. A. Filho and J. L. C. Meira, "Electric Water Pump for Engine Cooling," SAE 2007-01-2785, 2007.
2 H. S. Heo, G. S. Lee and S. J. Bae, "Effect of Shape of Discharge Port on Hydraulic Performance of Automotive Closed Type Water Pump," Transactions of KSAE, Vol.14, No.1, pp.39-47, 2006.
3 G. S. Lee, H. S. Heo, H. C. Kim, B. C. Na and C. B. Oh, "Evaluations of the Hydraulic Flow Force on the Automotive Closed Type Water Pump with Balance Hole by Means of a Computational Fluid Dynamic Analysis," Spring Conference Proceedings, KSAE, pp.1120-1126, 2007.
4 SC/Tetra Ver.7 User's Guide Solver Reference. 2007.
5 K. Imaichi, Y. Murakami, H. Tsurusaki and K. R. Jo, A Basic of Pump Design, Dae Young Sa, Seoul, 2002.