This paper presents the design and analysis of a thermally driven thermoacoustic cooler, which aims to
utilise industrial waste heat to provide air-conditioning for buildings where waste heat are abundant
but air conditioning is required. The working gas is helium at 3.0 MPa. The operating frequency is
around 100 Hz. A three-stage travelling wave thermoacoustic engine is design to convert waste heat to
acoustic power, and a single stage travelling wave thermoacoustic cooler is connected to the engine to
provide cold water at temperature of 0-5 ◦C for air conditioning. The ambient temperature is set as 40
◦C. The simulation results show that the engine can convert 9.9% of the 15 kW heat input (at a
temperature of 200 ◦C) to 1.5 kW acoustic power, and that the cooler can delivery 2.6 kW cooling
power at 0 ◦C with a coefficient of performance (COP) of 2.25
