Temperature Control of Industrial Water Cooler using Hot-gas Bypass
In this study, we experiment on precise control outlet
temperature of water from the water cooler with hot-gas bypass
method based on PI control logic for machine tool. Recently, technical
trend for machine tools is focused on enhancement of speed and
accuracy. High speedy processing causes thermal and structural
deformation of objects from the machine tools. Water cooler has to be
applied to machine tools to reduce the thermal negative influence with
accurate temperature controlling system. The goal of this study is to
minimize temperature error in steady state. In addition, control period
of an electronic expansion valve were considered to increment of
lifetime of the machine tools and quality of product with a water
cooler.
[1] Lee, S. W., Yeom, H. K., 2008, Performance of thermal error controller to
minimize thermal deformation of machine tools(in Korean), Proceeding
of Korean Society for Precision Engineering(spring), pp. 376-380.
[2] Choi, J. H., Beak, S. M., Jin, B. J., Choi, W. J., Moon, C. G., Lee, H. S.,
Yoon, J. I., 2009, Performance Characteristics of Cooler Controled
Capacity Using Hot-gas Bypass, Int. Symp. on Convective Heat and Mass
Transfer in Sustainable Energy, Vol. 2, pp. 502-505.
[3] Lee, S. W. and Lee, C .W., 2007, Assessment capability of oil cooler with
hot-gas(in Korean), Proceeding of Korean Society for Precision
Engineering, No. 6, pp. 459-460.
[4] Yaqub. M, Zubair S. M., Jameel-ur-Rehman Khan, 2000, Performance
evaluation of hot-gas bypass capacity control scheme for refrigeration
and air-conditioning systems, Energy, Vol. 25, pp. 543-561.
[5] Yaqub. M, Zubair S. M., Khan S. H., 1995, 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. 483-93.
[1] Lee, S. W., Yeom, H. K., 2008, Performance of thermal error controller to
minimize thermal deformation of machine tools(in Korean), Proceeding
of Korean Society for Precision Engineering(spring), pp. 376-380.
[2] Choi, J. H., Beak, S. M., Jin, B. J., Choi, W. J., Moon, C. G., Lee, H. S.,
Yoon, J. I., 2009, Performance Characteristics of Cooler Controled
Capacity Using Hot-gas Bypass, Int. Symp. on Convective Heat and Mass
Transfer in Sustainable Energy, Vol. 2, pp. 502-505.
[3] Lee, S. W. and Lee, C .W., 2007, Assessment capability of oil cooler with
hot-gas(in Korean), Proceeding of Korean Society for Precision
Engineering, No. 6, pp. 459-460.
[4] Yaqub. M, Zubair S. M., Jameel-ur-Rehman Khan, 2000, Performance
evaluation of hot-gas bypass capacity control scheme for refrigeration
and air-conditioning systems, Energy, Vol. 25, pp. 543-561.
[5] Yaqub. M, Zubair S. M., Khan S. H., 1995, 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. 483-93.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:49452", author = "Jung-in Yoon and Seung-taek Oh and Seung-moon Baek and Jun-hyuk Choi and Jong-yeong Byun and Seok-kwon Jeong and Choon-guen Moon", title = "Temperature Control of Industrial Water Cooler using Hot-gas Bypass", abstract = "In this study, we experiment on precise control outlet
temperature of water from the water cooler with hot-gas bypass
method based on PI control logic for machine tool. Recently, technical
trend for machine tools is focused on enhancement of speed and
accuracy. High speedy processing causes thermal and structural
deformation of objects from the machine tools. Water cooler has to be
applied to machine tools to reduce the thermal negative influence with
accurate temperature controlling system. The goal of this study is to
minimize temperature error in steady state. In addition, control period
of an electronic expansion valve were considered to increment of
lifetime of the machine tools and quality of product with a water
cooler.", keywords = "Hot-gas bypass, Water cooler, PI control, Electronic Expansion Valve, Gain tuning", volume = "3", number = "11", pages = "1374-5", }