The Influence of the Density of Coconut Fiber as Stack in Thermo-Acoustics Refrigeration System

2nd International Conference on Agricultural Engineering for Sustainable Agricultural Production

Hartulistiyoso, E.^1 ; Yulianto, M.^1 ; Sucahyo, L.^1

Department of Mechanical and Bio-system Engineering, Bogor Agricultural University (IPB), Indonesia^1

关键词: Coconut fiber;    Cold side;    Environment temperature;    Refrigeration system;    Temperature differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/147/1/012037/pdf
DOI  :  10.1088/1755-1315/147/1/012037

来源: IOP

【 摘 要 】

An experimental study of using coconut fiber as stack with varying density in thermo-acoustics refrigeration system has been done. Stack is a device which is described as the "heart" in thermo-acoustics refrigeration system. The length of stack is a fix parameter in this experiment. The performance of the coconut fiber was evaluated from the density of stack (varied from 30%, 50% and 70%), position of stack (varied from 0 to 34 cm from the sound generator), and frequency of sound generator (varied from 150 Hz, 200Hz, 250Hz and 300Hz). The inside, outside, and environment temperatures were collected every second using Data Acquisition (DAQ). The result showed that the increase of stack density will increase the performance of thermo-acoustics refrigeration system. The higher density produced temperature differences in cold side and hot side of 5.4°C. In addition, the position of stack and frequency of sound generator have an important role in the performance of thermo-acoustics refrigeration system for all variations of the density.