scholarly journals Numerical study of the influence of radius stack on the low heating temperature and efficiency of traveling wave thermoacoustic engine

2020 ◽  
Vol 1464 ◽  
pp. 012012
Author(s):  
S W Utami ◽  
I Farikhah ◽  
N Khoiri ◽  
S Patonah ◽  
U Kultsum ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Numerical Study ◽  
Heating Temperature ◽  
Thermoacoustic Engine

scholarly journals Numerical Study on the Effect of Mean Pressure and Loop's Radius to the Onset Temperature and Efficiency of Traveling Wave Termoacustic Engine

2020 ◽  
Vol 3 (3) ◽  
pp. 96-103
Author(s):  
Endang Dian Rokhmawati ◽  
Irna Farikhah ◽  
Ummi Kaltsum ◽  
Harto Nuroso ◽  
Aan Burhanudin ◽  
...  
Keyword(s):  
Traveling Wave ◽  
Waste Heat ◽  
Numerical Study ◽  
Heating Temperature ◽  
Heat Energy ◽  
Onset Temperature ◽  
Working Fluid ◽  
Air Conditioner ◽  
Mean Pressure ◽  
Stability Limits

The thermoacoustic engine can be a device to convert waste heat energy in the engine car become useful energy such as for charging battery in car or Air conditioner of the car. This work can be done by experimentally and numerically. There are some parameters that have an impact on the performance of the engine. They are geometry of the engines, working fluid, and mean pressure. The performance of the engine depends on the efficiency and the heating temperature. In the car, waste heat energy is not high enough. Therefore, we need to utilize the low heating temperature to be converted into useful energy. This study contributes to numerically the effect of mean pressure and loop’s radius of the regenerator on the onset temperature and the efficiency of traveling wave thermoacoustic engines. The application that is used to solve numerical problems is fortran95. There are two codings that are used in fortran95. They are stability limits and efficiency codes. The lowest onset temperature that achieved is 153˚C with efficiency up to 38.1% that can be reached when the mean pressure is 4.0 MPa and the loop's radius is 5 cm. This result indicated that we can use low heating temperatures from waste heat of engine car to turn on electronics equipment inside the car.

scholarly journals Investigation of a traveling wave thermoacoustic engine in a looped-tube

2014 ◽  
Vol 67 ◽  
pp. 02086 ◽  
Author(s):  
Petr Novotný ◽  
Shu-Shen Hsu ◽  
An-Bang Wang ◽  
Tomáš Vít
Keyword(s):  
Traveling Wave ◽  
Thermoacoustic Engine

A traveling-wave thermoacoustic engine

2003 ◽  
Vol 2003.7 (0) ◽  
pp. 249-250
Author(s):  
Yuki UEDA ◽  
Tethushi BIWA ◽  
Uichiro Mizutani
Keyword(s):  
Traveling Wave ◽  
Thermoacoustic Engine

Numerical Study of the Small-Signal Modulation Bandwidth of Reflective and Traveling-Wave SOAs

2015 ◽  
Vol 33 (13) ◽  
pp. 2758-2764 ◽  
Author(s):  
Angelina R. Totovic ◽  
Jasna V. Crnjanski ◽  
Marko M. Krstic ◽  
Dejan M. Gvozdic
Keyword(s):  
Traveling Wave ◽  
Numerical Study ◽  
Small Signal ◽  
Modulation Bandwidth ◽  
Signal Modulation ◽  
Small Signal Modulation

A TRAVELING WAVE THERMOACOUSTIC ENGINE - DESIGN AND TEST

2021 ◽  
pp. 1-9
Author(s):  
Mitchell McGaughy ◽  
Chengshi Wang ◽  
Eric Boessneck ◽  
Thomas Salem ◽  
John R Wagner
Keyword(s):  
Acoustic Wave ◽  
Traveling Wave ◽  
System Analysis ◽  
Waste Heat ◽  
Electrical Power ◽  
Performance Testing ◽  
Cost Effective ◽  
Acoustic Power ◽  
Consumer Products ◽  
Thermoacoustic Engine

Abstract The demand for clean, sustainable, and cost-effective energy continues to increase due to global population growth and corresponding use of consumer products. The provision of heat to a thermoacoustic prime mover results in the generation of an acoustic wave that can be converted into electrical power. Thermoacoustic devices offer highly reliable and transportable power generation with low environmental impact using a variety of fuel sources. This paper focuses on the design and testing of a single stage, traveling wave, thermoacoustic engine. The system configuration, component design, and integration of sensors will be described. Performance testing and system analysis shows that for a 300 W heat source, the thermoacoustic machine generates a 54 Hz acoustic wave with a thermal efficiency of 7.8%. The system's acoustic power output may be increased by 84% through improved heat exchanger design. Tuning of the acoustic system and optimization of the bi-directional turbine merit attention to realize an applicable waste heat energy harvesting system.

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