An experimental verification of thermoacoustic heat pump

Wence Xiao, Zhongyu Wang, Lulu Zhang, Xiaochen Li & Zhi Pang

Studenteropgave: Semesterprojekt

Abstrakt

The aim of this project was to verify thermoacoustic heat pump effect as a way of harvesting energy from noisy. We built our experiment with loudspeaker, one-end closed tube and a stack inside the tube. In the experiment we recorded the temperatures both above and below the stack when the acoustic waves were set at different frequencies and different powers levels. It was concluded that acoustic wave could be applied to pump heat. As for the influence of frequency, at the tube’s first resonance frequency the temperature difference was optimum, while the effect of thermoacoustic heat pump was gradually reduced when the frequency was increased and decreased from the first resonance frequency. Concerning the power effect, increasing the power of acoustic waves increased the temperature difference until a certain level. For the time used to achieve the lowest temperature, less time was needed when the power was increased, but the dependence between the time and frequency was not as clear as that between the time and power.

UddannelserBasis - International Naturvidenskabelig Bacheloruddannelse, (Bachelor uddannelse) Basis
SprogEngelsk
Udgivelsesdato3 jun. 2009
VejledereJesper Heebøl Christensen

Emneord

  • heat pump
  • experiment
  • thermoacoustics