THERMOACOUSTIC ENGINE SYSTEM USING TEMPERATURE-CHANGE HEAT SOURCE

摘要

A thermoacoustic engine system using temperature-change heat source comprises a resonant tube (6) and at least two-stage traveling-wave loops which all use the common resonant tube (6). Each of the traveling-wave loops has a high temperature heat exchanger (2) which has an inlet (9) and an outlet (10) used for inputting and outputting of the heat-exchange fluid medium. The outlet (10) on the high temperature heat exchanger (2) of the last stage traveling-wave loop is connected with the inlet (9) on the high temperature heat exchanger (2) of the next stage traveling-wave loop. The work temperature of the high temperature heat exchanger (2) of the at least two-stage traveling-wave loops reduces in turn from the last stage traveling-wave loop to the next stage traveling-wave loop. Therefore, the heat exchange efficiency is increased and the compact structure is acquired.