Prediction of gas pulsation of an industrial compressor
来源期刊：中南大学学报(英文版)2013年第10期
论文作者：Heuicheol Kim Mi-Gyung Cho Jaehong Park Cheolho Bai Jaesool Shim
文章页码：2735 - 2740
Key words：gas pulsation; reciprocating compressor; discharging piping line; regression model
Abstract: The measurement and prediction of gas pulsations are performed along the discharge pipeline of a reciprocating compressor for a refrigerator. A regression based experimental model of the one-dimensional acoustic field is developed. First, the conventional method for gas pulsation measurement and prediction, which separates the incident and reflected wave of acoustic waves traveling in the frequency domain, is discussed. Then, regression based on our proposed simple model, which is able to predict gas pulsation compared to the conventional method, is introduced for the analysis of a reciprocating compressor (The conventional method requires the value of sound speed in the piping line for the reciprocating compressor). A numerical prediction is made for the regression method. Three power spectrum values along the discharge pipeline are used for analysis, and two values are used for verification. Our results are in a good agreement with the conventional method.
Heuicheol Kim1, Mi-Gyung Cho2, Jaehong Park3, Cheolho Bai1, Jaesool Shim1
(1. School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Korea;
2. Department of Media Engineering, Tongmyong University, Busan 608-711, Korea;
3. MEMS-Bio Team, Korea National NanoFab Center 305-806, Korea)
Abstract:The measurement and prediction of gas pulsations are performed along the discharge pipeline of a reciprocating compressor for a refrigerator. A regression based experimental model of the one-dimensional acoustic field is developed. First, the conventional method for gas pulsation measurement and prediction, which separates the incident and reflected wave of acoustic waves traveling in the frequency domain, is discussed. Then, regression based on our proposed simple model, which is able to predict gas pulsation compared to the conventional method, is introduced for the analysis of a reciprocating compressor (The conventional method requires the value of sound speed in the piping line for the reciprocating compressor). A numerical prediction is made for the regression method. Three power spectrum values along the discharge pipeline are used for analysis, and two values are used for verification. Our results are in a good agreement with the conventional method.
Key words:gas pulsation; reciprocating compressor; discharging piping line; regression model
