| dc.description.abstract | Clean energy has become a key factor in the
modern world due to the lack of sustainable and clean
energy sources. Low-grade thermal energy sources are
common in the world and have the potential to fulfil a
significant amount of energy demand. The thermoacoustic
technology can be utilized to convert low-grade waste heat
into acoustic and then into electricity without involving any
environmental destruction. Due to the potential of the
development
of
a sustainable energy system,
thermoacoustic has become an emerging modern
technology.
Compared to the standing wave
thermoacoustic devices, the travelling wave devices are
more efficient due to their phases of pressure and velocity
being in the same phase. Research is being carried out
worldwide and the effect of the design parameters on the
energy conversion efficiency of the device needs to be
analyzed further. In this study, a single-stage travelling
wave thermoacoustic engine was analyzed utilizing an
existing computational model that has been validated with
experimental data and discussed in the literature. The
diameter of the regenerator towards the energy conversion
efficiency was analyzed. In compliance with the simulation
data, the diameter of the regenerator was found to have
given a minimum energy conversion efficiency, except, at
that point, the conversion efficiency gradually increased by
either increasing or decreasing the diameter of the
regenerator. During the study, the length of the regenerator
and the temperature of the hot heat exchanger were kept
constant. | en_US |
