Sharif Digital Repository

Traveling wave thermoacoustic prime mover is studied in this project. For this purpose, based on one dimensional thermoacoustic equations, thermoacoustic flow is modeled in each segment of thermoacoustic systems. Since regenerator is the most important segment in a traveling wave thermoacoustic prime mover, modeling of the flow in regenerator is considered as the primary motivation for this research. In order to model the thermoacoustic engines, governing 1D relations are simplified and developed. Moreover, to solve equations in regenerator, tortuous geometry of regenerator is approximated with the stack consisting of circular pores. Therefore, in this research stack relations has been used... 

Acoustic science and it’s applications in thermodynamic, cause the new achievements in different field of scientific and industrial. Thermoacoustic is a new technique of acoustic that analyzes the thermodynamic fluctuations related to time and displacement. In other word, thermoacoustic is a field of transformation between acoustic energy and thermal energy. Thermoacoustic devices Include refrigeration equipment, motors, pumps, heat or a combination of these devices that are used to transfer and convert acoustic energy to thermal energy. The thermoacoustic systems that their functions are based on the interaction between acoustic wave and gas particle that does exist it’s around are new... 

Thermoacoustics deals with the conversion of heat energy into sound energy and vice versa. This new and emerging technology has a strong potential towards the development of sustainable and renewable energy systems by utilizing waste heat or solar energy. Although thermoacoustic devices are simple to fabricate; however, the design process is very challenging. The thermoacoustic phenomenon is discovered over a century ago; nevertheless, the rapid advancement in this field occurred during the past three decades when the theoretical understanding of the phenomenon is developed along with the prototype devices. There are several advantages of heat engines and refrigerators based on...