14-11-2014, 12:20 PM
Abstracts: Thermoacoustic heatpump is an emerging technology which does not require any moving parts or harmful parts in its operation. This technology uses acoustic waves to pump heat across a temperature gradient. The vast majority of thermoacoustic heatpump to date have used electromagnetic loudspeakers to generate the acoustic input. In this report, the design, construction, operation, and modeling of a electromagnetic - driven thermoacoustic heatpump are detailed. Heat transfer takes place by means of four invisible elements: pressure, sound, temperature and a gaseous medium such as air. When these elements interact in a specific way, in an optimised enclosure, a thermodynamic cycle occurs. The main application of thermoacoustic is n space and this system was designed in refrence to it and by applying it on the ground for effective use. This system demonstrates the effectiveness of electromagnetic actuation in moving heat across an 18 degree C temperature difference. The obtained results confirm the validity of the developed model. The developed theoretical and experimental tools can serve as invaluable means for the design and testing of other electromagnetically-driven thermoacoustic heatpump configurations.