Design, construction and evaluation of a standing wave thermoacoustic prime mover

Setiawan, Ikhsan; Murti, Prastowo; Achmadin, Wahyu Nur; Utomo, Agung Bambang Setio; Nohtomi, Makoto

doi:10.1063/1.4943482

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…In this case, imperfect thermal contact between the gas parcel and the wall occurs. Therefore, the gas parcel is undergoing a thermodynamic cycle consisting of four stages (Setiawan, 2015 ). In step (1) the gas parcel is heated due to absorbing a certain amount of heat 𝑑𝑄 1 and undergoing thermal expansion.…”

Section: The Thermoacoustic Principlementioning

confidence: 99%

“…Although thermoacoustic prime movers have low thermal efficiency, the ability of these devices to work by using waste heat makes the application of thermoacoustic prime movers would be attractive and useful to improve the overall thermal system (Setiawan, 2015). Thermoacoustic prime movers are usually applied to generate electrical energy by combining it with a linear alternator (Backhauss et al, 2004;Kitadani et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Figure1. shows the schematic of pressure-volume diagram for the four thermodynamic processes undertaken by the gas parcel as described above (Fig.1), known as the Brayton cycle(Setiawan, 2015). The resulting closed-loop area ∮ 𝑝 𝑑𝑉 indicates the total work used by the standing-wave thermoacoustic prime mover to produce acoustic power (In't Panhuis, 2009).…”

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confidence: 99%

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Experimental Study of Resonance Frequency at Prime Mover Thermoacoustic Standing Wave

Cahyadi

Adhitama

Setiawan

et al. 2017

J. Phys.: Theor. Appl.

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<p class="Abstract">Thermoacoustic prime movers work by using thermal energy to produce acoustic energy in the form of sound wave through thermoacoustic effect which occurs in a porous medium called stack. This paper describes an experimental study on the relation between the order of resonance frequencies generated by a thermoacoustic prime mover and the length of the resonator and the viscous penetration depth. Extending the resonator length will decreasing the resonance frequency which result in the increasing in the viscous penetration depth. Generally, the generated sound consists of only one frequency, that is the first-order one. However, under certain conditions, the sound has only the second-order frequency or comprises two frequencies of the first-order and second-order resonance frequencies. This phenomenon can be explained by considering the comparison between the effective hydraulic radius of stack () and the viscous penetration depth (). It is found that the first-order frequency appears when , while when (with calculated by using the first-order frequency) then the second order frequency is produced so that is back to a smaller value and therefore the condition of is recovered. In addition, when of the thermoacoustic prime mover will<em> </em>generate the first and second order frequencies together.</p>

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Section: The Thermoacoustic Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Experimental Study of Resonance Frequency at Prime Mover Thermoacoustic Standing Wave

Cahyadi

Adhitama

Setiawan

et al. 2017

J. Phys.: Theor. Appl.

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“…Thermoacoustic is a study of the field of interaction between heat and sound, namely about the conversion of thermal energy into sound energy (acoustic) and vice versa [3]. To produce thermoacoustic effects, thermoacoustic devices are needed [4], namely the thermoacoustic engine (prime mover) [5], [6] and thermoacoustic cooler [7], [8], which is often referred to as the heat pump [9].…”

Section: Introductionmentioning

confidence: 99%

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

Rokhmawati

Farikhah

Kaltsum

et al. 2020

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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.

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“…Thermoacoustic prime mover (TAPM) which has a resonator length of 128 cm, uses a stack of stainless-steel mesh numbered 14, two heat exchangers and water at atmospheric pressure as gas acting inside the resonator. Successfully designed, built, and evaluated by [6].…”

Section: Introductionmentioning

confidence: 99%

Resonator Influence Simulation of Designed Close-Open Standing Wave Thermoacoustic Engine

Sugiyanto¹,

Kamal²,

Waluyo³

et al. 2019

Adv. sci. technol. eng. syst. j.

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Thermo-acoustic technology is very potential to be applied to convert heat into another energy source. The complete thermoacoustic engine construction requires a resonator connected to a core where there is a heat exchanger. The thermoacoustic core has a function as an acoustic power generator while the resonator functions as a storage of acoustic power which will shift the amplitude or phase of oscillating pressure or volume flow rate. Experimental testing was carried out to obtain the performance of a quarter wave length of standing wave thermoacoustic engine (SWTE). The resonator is made of a 2 inch Sch 40 stainless steel pipe with a length of 390 mm. The results of this experiment showed that the measured pressure amplitude was 4800 kPa with a working frequency of 138 HZ and produced an acoustic power of 22.85 watts. The parameters of this experimental test are used for the simulation program. The acoustic power generated from the simulation is 20.13 watts, 18.67 watts and 17.82 watts respectively for the length of the resonator 390 mm, 780 mm and 1170 mm.

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Design, construction and evaluation of a standing wave thermoacoustic prime mover

Cited by 8 publications

References 11 publications

Experimental Study of Resonance Frequency at Prime Mover Thermoacoustic Standing Wave

Experimental Study of Resonance Frequency at Prime Mover Thermoacoustic Standing Wave

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

Resonator Influence Simulation of Designed Close-Open Standing Wave Thermoacoustic Engine

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