The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Energy Savings for Inverter Driving Centrifugal Pump with Duty Cycles

인버터 구동 원심펌프의 급수 사용율에 따른 에너지 절감 평가

  • Received : 2015.06.22
  • Accepted : 2015.11.09
  • Published : 2015.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study is to evaluate energy savings for inverter driving multi-stage centrifugal pump. Variable speed driving pump system has high efficiency compared with constant speed driving pump system. Because of difficulty to estimate operating efficiency of variable speed driving pump system, energy saving rates are used to replace operating efficiency. energy saving rates are calculated from pump input power and pump duty cycle. But another researches have used pump duty cycles of each season for energy saving rate. In this study, for estimating energy saving rate more high accuracy, pump duty cycles are measured for 1 year. pump duty cycles, depending on the season and be classified according to the weekday/weekend or during the week day. By this pump duty cycles, Energy saving rate is calculated appropriately.

Keywords

References

  1. Gonzalez, J., Fernandez, J., Blanco, E., and Santolaria, C., 2002, "Numerical simulation of the dynamic effects due to impeller-volute interaction in a centrifugal pump", Journal of Fluids Engineering, Vol. 124, No. 2, pp. 348-355. https://doi.org/10.1115/1.1457452
  2. Jafarzadeh, B., Hajari, A., Alishahi, M. M., and Akbari, M. H., 2011, "The flow simulation of a low-specific-speed high-speed centrifugal pump", Applied Mathematical Modelling, Vol. 35, No. 1, pp. 242-249. https://doi.org/10.1016/j.apm.2010.05.021
  3. Parrondo-Gayo, Jorge L., Jose Gonzalez-Perez, and Joaquin Fernandez-Francos, 2002, "The effect of the operating point on the pressure fluctuations at the blade passage frequency in the volute of a centrifugal pump", Journal of Fluids Engineering Vol. 124, No. 3, pp. 784-790. https://doi.org/10.1115/1.1493814
  4. Pyun, K. B., Kim, J. H., Choi, Y. S., and Yoon, J. Y., 2011, "Design optimization of a centrifugal pump impeller using rsm and design of volute", The KSFM Journal of Fluid Machinery, Vol. 15, No. 3, pp. 39-45. https://doi.org/10.5293/kfma.2012.15.3.039
  5. Jung, I. S., Jung, W. H., Baek, S. H., and Kang, S., 2012, "Shape optimization of impeller blades for bidirectional axial flow pump", Transactions of the Korean Society of Mechanical Engineers B, Vol. 36, No. 12, pp. 1141-1150. https://doi.org/10.3795/KSME-B.2012.36.12.1141
  6. Kim, S., Choi, Y. S., Yoon, J. Y., and Kim, D. S., 2008, "Design optimization of centrifugal pump impeller using DOE", The KSFM Journal of Fluid Machinery, Vol. 11, No.3, pp. 36-42. https://doi.org/10.5293/KFMA.2008.11.3.036
  7. Savar, Mario, Hrvoje Kozmar, and Igor Sutlovic, 2009, "Improving centrifugal pump efficiency by impeller trimming", Desalination Vol. 249, No. 2, pp. 654-659. https://doi.org/10.1016/j.desal.2008.11.018
  8. Sakthivel, N. R., V. Sugumaran, and Binoy B. Nair, 2010, "Comparison of decision tree-fuzzy and rough set-fuzzy methods for fault categorization of mono-block centrifugal pump", Mechanical systems and signal processing, Vol. 24, No. 6 pp. 1887-1906.
  9. Suh, S. H., Kim, H. H., Rakibuzzaman. MD., Kim, K. W., and Yoon, I. S., 2014, "A study on the performance evaluaion of variable-speed drive pump", The KSFM Journal of Fluid Machinery, Vol. 17, No. 5, pp. 83-88. https://doi.org/10.5293/kfma.2014.17.5.083
  10. Suh, S. H., Kim, K. W., Kim, H. H., Yoon, I. S., and Cho, M. T., 2015, "Evaluation of energy saving with vector control inverter driving centrifugal pump system", The KSFM Journal of Fluid Machinery, Vol. 18, No. 2, pp. 67-72. https://doi.org/10.5293/kfma.2015.18.2.067
  11. De Almeida, A. T., Ferreira, F. J., and Both, D., 2005, "Technical and economical considerations in the application of variable-speed drives with electric motor systems", IEEE Transactions on Industry Applications, Vol. 41. No. 1, pp. 188-199. https://doi.org/10.1109/TIA.2004.841022
  12. Ma, Z. and Wang, S., 2009, "Energy efficient control of variable speed pumps in complex building central air-conditioning systems", Energy and Buildings, Vol. 41, No. 2 pp. 197-205. https://doi.org/10.1016/j.enbuild.2008.09.002
  13. Wang, S. and Burnett, J., 2001, "Online adaptive control for optimizing variable-speed pumps of indirect water-cooled chilling systems", Applied Thermal Engineering, Vol. 21 No. 11, pp. 1083-1103. https://doi.org/10.1016/S1359-4311(00)00109-5

Cited by

  1. A Study on the Efficiency Characteristics of ESS of Maritime University Training Ship vol.32, pp.6, 2015, https://doi.org/10.13000/jfmse.2020.12.32.6.1401