Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)

Society of Korea Industrial and System Engineering (한국산업경영시스템학회)
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Analyses of Power Consumption of the Heat Pump Dryer in the Automobile Drying Process by using the Principal Component Analysis and Multiple Regression

주성분 분석과 다중회귀모형을 사용한 자동차 건조 공정의 히트펌프 건조기 소모 전력 분석

  • Lee, Chang-Yong (Dept. of Industrial and Systems Engineering, Kongju National University) ;
  • Song, Gensoo (Dept. of Industrial and Systems Engineering, Kongju National University) ;
  • Kim, Jinho (Dept. of Industrial and Systems Engineering, Kongju National University)
  • 이창용 (공주대학교 산업시스템공학과) ;
  • 송근수 (공주대학교 산업시스템공학과) ;
  • 김진호 (공주대학교 산업시스템공학과)
  • Received : 2015.01.07
  • Accepted : 2015.03.06
  • Published : 2015.03.31
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Abstract

In this paper, we investigate how the power consumption of a heat pump dryer depends on various factors in the drying process by analyzing variables that affect the power consumption. Since there are in general many variables that affect the power consumption, for a feasible analysis, we utilize the principal component analysis to reduce the number of variables (or dimensionality) to two or three. We find that the first component is correlated positively to the entrance temperature of various devices such as compressor, expander, evaporator, and the second, negatively to condenser. We then model the power consumption as a multiple regression with two and/or three transformed variables of the selected principal components. We find that fitted value from the multiple regression explains 80~90% of the observed value of the power consumption. This results can be applied to a more elaborate control of the power consumption in the heat pump dryer.

Keywords

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