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International journal of refrigeration = Revbue internationale du froid v.74, 2017년, pp.116 - 128   SCI SCIE
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Analyse de compresseur linEaire A base de solEnoIde pour un rEfrigErateur domestique
Analysis of solenoid based linear compressor for household refrigerator

Bijanzad, A. (Corresponding author. Manufacturing and Automation Research Center, Mechanical Engineering Department, Koc University, Istanbul 34450, Turkey. Fax: +90 (212) 338 1548. ); Hassan, A. ( ); Lazoglu, I. ( );
  • 초록  

    Abstract This article presents the analytical modeling of an oil-free solenoid actuator based linear compressor used in household refrigerators. The stator coil was excited with the pulse width modulated signal which caused linear oscillations in the armature using helical spring. Dynamic characteristics of the linear compressor were studied analytically considering the nonlinearity of the gas and electromagnetic force. The system dynamic models were validated with the finite element simulation as well as a specially designed experimental setup. Frequency response functions of stroke to current as well as pressure to current ratios were generated to evaluate the effect of excitation frequency on the compressor performance. The higher efficiency of the solenoid actuator was achieved when excited at the natural frequency. The results show that the natural frequency of the designed system is around 19 Hz and the work done in a cycle is approximately 1.3 J. Additionally, 47% isentropic and 87% electrical efficiency were achieved. Highlights Dynamics of the solenoid based linear compressor is proposed. The Pulse Width Modulation (PWM) technique is used to excite the solenoid. Resonance phenomenon is applied in order to obtain optimal linear compressor performance. The nonlinear electromagnetic force of the system is modeled and validated with the experimental data. Instead of a linear interpolation method, a novel approach of modeling the gas force is proposed.


  • 주제어

    Linear compressor .   Pulse width modulation (PWM) .   Finite element method .   Frequency response function .   Isentropic efficiency .   Solenoid .   Compresseur linéaire .   Modulation d'ampleur d'impulsion (PWM) .   Méthode d'élément fini .   Fonction de réponse en fréquence .   Efficacité isentropique .   Solénoïde.  

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