Effect of Dynamic Pressure on the Performance of Thermoacoustic Refrigerator with Aluminium (Al) Resonator

Arya, Bheemsha; Nayak, Biswajit; Shivakumara, N. V.

doi:10.1088/1757-899x/346/1/012034

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…The same model is simulated by using DeltaEC which estimates -47 o C and -48 o C are the lowest temperatures for the convergent-divergent and hemispherical resonator designs respectively. Nayak B et al, [17] [18] have studied the effect of dynamic pressure on the TAR performance for different operating conditions. The experimental setup was fabricated by using aluminum with 2 mm polyurethane coating inside the resonator to reduce the heat losses.…”

Section: Introductionmentioning

confidence: 99%

Influence of Parallel Plate Stack Spacing on the Temperature Difference of Thermoacoustic Refrigerator by using Helium as a Working Medium

N V*,

Arya

2019

IJRTE

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The refrigerants are usually provided in the conventional refrigeration system despite the fact that, they produce CFCs and HCFCs, which are hazardous to the environment. However, these disadvantages can be overcome using air or inert gas in the thermoacoustic refrigeration system. The present research involves the effect of spacing of parallel plate stack on the performance of thermoacoustic refrigerator (TAR) in terms of temperature difference (∆T). The entire resonator system as well as other structural parts of the refrigerator are fabricated by using PVC to reduce conduction heat loss. Three parallel plate stacks have been used to study the performance of TAR considering different porosity ratios by varying the gap between the parallel plates (0.28 mm, 0.33 mm and 0.38 mm). The parallel plate stacks are fabricated by using aluminium and mylar sheet material and the working fluid used for the experimental study is helium. The experiments have been carried out with different drive ratios ranging from 0.6% to 1.6% with operating frequencies of 200 – 600 Hz. Also the mean operating pressure used for the experiment is 2 to 10 bar and cooling load of 2 to 10W are considered. The ∆T between the hot heat exchanger and cold heat exchanger is recorded using RTDs and Bruel and Kjaer data acquisition system. Experimental results shows that the lowest temperature measured at cold heat exchanger is -2.1 oC by maintaining the hot heat exchanger temperature at about 32 oC. The maximum temperature difference of 32.90 oC is achieved.

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Section: Introductionmentioning

confidence: 99%

Influence of Parallel Plate Stack Spacing on the Temperature Difference of Thermoacoustic Refrigerator by using Helium as a Working Medium

N V*,

Arya

2019

IJRTE

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“…They conducted experiments and recorded that the ΔT of 19.4 °C for parallel plate stack when helium is used as a working fluid. Bheemsha et al, [18] have studied the effect of dynamic pressure on the TAR performance of different operating conditions. The experimental setup was fabricated by using aluminum with 2 mm polyurethane coating inside the resonator to reduce the heat losses to the atmosphere.…”

mentioning

confidence: 99%

Performance evaluation of 10 W cooling power thermoacoustic refrigerator with spiral stacks using air and helium as working fluids

Shivakumara

Arya²

2020

Eng. Res. Express

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The current research work involves the effect of different operating parameters on the performance of the thermoacoustic refrigerator. The thermoacoustic refrigerator is fabricated by using Poly Vinyl Chloride (PVC), which reduces the conduction heat loss. Two spiral stacks have been used to study the performance of the thermoacoustic refrigerator by varying the gap between two spirals (0.33 mm and 0.38 mm). The variants of spiral stacks are made up of PVC sleeves and mylar sheets of thickness 0.12 mm. In this work, Air and Helium are used as working fluids. The experiments have been carried out for different drive ratios ranging from 0.6% to 1.6%, with operating frequencies of 200-600 Hz with a step of 100 Hz. Also, the mean operating pressure of 2 to 10 bar with a step of 2 bar and a cooling load of 2 to 10 W with a step of 2 W has been considered. The temperature difference between the hot end and cold end of the stack is recorded using RTDs and Bruel & Kjaer data acquisition system. The effect of different parameters on the performance of thermoacoustic refrigerator, such as operating frequency, cooling load, mean operating pressure and drive ratios have been studied. The TAR is modeled in DeltaEC RECEIVED

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Performance Analysis of Thermoacoustic Refrigerator of 10 W Cooling Power made up of Poly-Vinyl-Chloride for Different Parallel Plate Stacks by using Helium as a Working Fluid

Shivakumara¹,

Arya²

2021

J. Therm. Sci.

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Effect of Dynamic Pressure on the Performance of Thermoacoustic Refrigerator with Aluminium (Al) Resonator

Cited by 5 publications

References 1 publication

Influence of Parallel Plate Stack Spacing on the Temperature Difference of Thermoacoustic Refrigerator by using Helium as a Working Medium

Influence of Parallel Plate Stack Spacing on the Temperature Difference of Thermoacoustic Refrigerator by using Helium as a Working Medium

Performance evaluation of 10 W cooling power thermoacoustic refrigerator with spiral stacks using air and helium as working fluids

Performance Analysis of Thermoacoustic Refrigerator of 10 W Cooling Power made up of Poly-Vinyl-Chloride for Different Parallel Plate Stacks by using Helium as a Working Fluid

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