Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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A Study on High Precision Temperature Control of an Oil Cooler for Machine Tools Using Hot-gas Bypass Method

  • Jung, Young-Mi (Pukyong National University, Division of Mechanical Engineering) ;
  • Byun, Jong-Yeong (Pukyong National University, Graduate School of Refrigeration & Air-conditioning Engineering) ;
  • Yoon, Jung-In (Pukyong National University, Division of Mechanical Engineering) ;
  • Jeong, Seok-Kwon (Pukyong National University, Division of Mechanical Engineering)
  • Published : 2009.11.30
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Abstract

This study aims at precise control of oil outlet temperature in the oil cooler system of machine tools for enhancement of working speed and processing accuracy. PID control logic is adopted to obtain desired oil outlet temperature of the oil cooler system with hot-gas bypass method. We showed that the gains of PID controller could be easily determined by using gain tuning methods to get the gain of PID controller without any mathematical model. We also investigated various gain tuning methods to design the gains of PID and compared each control performance for selecting the optimal tuning method on the hot gas bypass method through experiments. Moreover, we confirmed excellent control performance with proposed PI controller gain even though disturbances were abruptly added to the experimental system.

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References

  1. Daewoo Machine Tool Institute, "Development of high-stiffness feed mechanism and high speed spindle", Research Report, 2003. (in Korean)
  2. Youn Cheol Park, Young Chul Kim and Man Ki Min, "Performance analysis on multi-type inverter air conditioner", Energy Conversion and Management, pp. 1697-1682, 2001 https://doi.org/10.1016/S0196-8904(00)00147-3
  3. S. W. Lee and H. K. Yeom, "Performance of thermal error controller to minimize thermal deformation of machine tools", Proceedings of Korean Society for Precision Engineering (Spring), pp. 376-380, 2008. (in Korean)
  4. M. Yaqub, S. M. Zubair and Jameel -ur-Rehman Khan, "Performance evaluation of hot-gas bypass capacity control scheme for refrigeration and airconditioning systems", Energy, vol. 25, pp. 543-561, 2000 https://doi.org/10.1016/S0360-5442(00)00004-9
  5. M. Yaqub, S. M. Zubair and S. H. Khan, "Second-law-based thermodynamic analysis of hot-gas by pass, capacity-control schemes for refrigeration and air-conditioning systems". Energy-The International Journal, vol. 20, no. 6, pp. 483-493, 1998 https://doi.org/10.1016/0360-5442(94)00091-G
  6. S. W. Lee and C .W. Lee, "Assessment capability of oil cooler with hot-gas", Proceedings of Korean Society for Precision Engineering, No. 6, pp. 459-460, 2007. (in Korean)

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  2. Comparison of System Performances of Hot-gas Bypass and Compressor Variable Speed Control of Water Coolers for Machine Tools vol.24, pp.1, 2012, https://doi.org/10.6110/KJACR.2012.24.1.001
  3. Comparison of system performance on hot-gas bypass and variable speed compressor in an oil cooler for machine tools vol.28, pp.2, 2014, https://doi.org/10.1007/s12206-013-1136-1
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  8. PI Controller Design of the Refrigeration System Based on Dynamic Characteristic of the Second Order Model vol.18, pp.6, 2009, https://doi.org/10.9726/kspse.2014.18.6.200
  9. An experiment investigation of temperature control performance for machine tool oil coolers with hot-gas bypass temperature control scheme and inverter temperature control scheme vol.35, pp.2, 2009, https://doi.org/10.1007/s12206-021-0137-8