An experimental study was performed on a low frequency transcritical thermoacoustic
engine developed at Maurice J. Zucrow Laboratories. The goal of the experiment was to
characterize the effects of engine geometry on the thermoacoustic production of the working
fluid and to use insights gained to design a power extraction device for the transcritical
thermoacoustic engine. The effects of geometry were investigated by parametrically varying
the length of the resonator and the diameter of the resonator and measuring the pressure
amplitude and frequency of thermoacoustic instabilities developed at varying ∆T and one
bulk pressure of P
Pcr
= 1.1. It was found that increasing resonator length increases pres?sure amplitude, decreases frequency, and increases acoustic power developed. Increasing
resonator diameter decreases pressure amplitude, increases frequency, and increases acoustic
power developed. It was also experimentally proven that coiled tube sections in the res?onator attenuate the thermoacoustic pressure wave. After testing, the knowledge gained
was applied to the design of a bidirectional impulse turbine for eventual integration into a
scaled-up version of the current thermoacoustic engine to be used to extract power from the
thermoacoustic instabilities developed in the rig.
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/14511879 |
| Date | 29 April 2021 |
| Creators | Benjamin Gallagher Kuras (10723920) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/thesis/EXPERIMENTAL_STUDY_OF_A_TRANSCRITICAL_THERMOACOUSTIC_ENGINE_WITH_POWER_EXTRACTION_APPLICATIONS/14511879 |
Page generated in 0.0059 seconds