22-02-2017, 10:11 AM
FUTURE REACH
The use of cheap household items to build refrigerators could explain this low efficiency. If other materials were used, it is possible that the factor could be adjusted for optimization. The battery works best when it is cantered in a region in the tube where the permanent wave produces the highest (and thermal) pressure forces. Experimenting with different frequencies and battery locations could produce greater efficiency. We also concluded that the shape and length of the resonator tube were an important factor in the efficiency of the device. Improvements in the resonator tube would imply further investigation into the effects that the tubes would otherwise have on the thermo-acoustic effect. Perhaps a resonance tube that was tapered to focus the intensity of the wave and therefore increase both the pressure and the maximum temperature would increase the effectiveness. However, as discussed above, further investigation is required to determine the shape of the maximum efficiency resonator tube. Other tube factors to be explored include the diameter and length of the tube. Due to the correlation between the resonator tube and the frequency used, these two factors would have to be experienced simultaneously. If maximum efficiency were achieved, the most optimal solution would be to model acoustic properties by computer simulation and predict efficient tube-frequency combinations in that way.Download full report