300
                Hz
           thermoacoustically driven pulse tube cooler for temperature below 100K

Dai, Wei; Gao, Yu; Zhu, Shanglong; Luo, Ercang

doi:10.1063/1.2405882

Cited by 28 publications

(9 citation statements)

References 10 publications

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“…In 1996, Godshalk made the first attempt on a 350 Hz single-stage PTC driven by a standing-wave TE, and obtained a no-load temperature of 147 K [6]. The following 10 years witnessed no further progress on such high frequency TE-PTCs until the introduction in 2005 by our group [7][8] of a tapered resonator, acoustic amplifier tube and inertance tube in the coupled system. With these improvements and continuous efforts, a lowest no-load temperature of 68.3 K has been obtained using a 300 Hz standing-wave TE driven PTC with 4.0 MPa helium gas and 750 W heating power [8].…”

Section: Introductionmentioning

confidence: 99%

A High Frequency Thermoacoustically-Driven Pulse Tube Cryocooler With Coaxial Resonator

Yu¹,

Wang²,

Dai³

et al. 2010

AIP Conference Proceedings

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Section: Introductionmentioning

confidence: 99%

A High Frequency Thermoacoustically-Driven Pulse Tube Cryocooler With Coaxial Resonator

Yu¹,

Wang²,

Dai³

et al. 2010

AIP Conference Proceedings

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“…In 1996, Godshalk made the first attempt of such a system and obtained a noload temperature of 147 K at 350 Hz, which was driven by a thermoacoustic engine [1]. In recent years, considerable progress has been made on 300 Hz pulse tube coolers driven by a standing-wave thermoacoustic compressor in our lab [2][3][4]. In 2009, through a series of improvements, the system reached a no-load temperature of 63 K and 1.04 W cooling power at 80 K with 500 W input power [4].…”

Section: Introductionmentioning

confidence: 99%

Performance of a 260 Hz pulse tube cooler with metal fiber as the regenerator material

Wang¹,

Zhang²,

Gao³

et al. 2014

AIP Conference Proceedings

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Abstract. Pulse tube coolers operating at higher frequency lead to a high energy density and result in a more compact system. This paper describes the performance of a 300 Hz pulse tube cooler driven by a linear compressor. Such high frequency operation leads to decreased thermal penetration, which requires a smaller hydraulic diameter and smaller wire diameter in the regenerator. In our previous experiments, the stainless steel mesh with a mesh number of 635 was used as the regenerator material, and a no-load temperature of 63 K was obtained. Both the numerical and experimental results indicate this material causes a large loss in the regenerator. A stainless steel fiber regenerator is introduced and studied in this article. Because this fiber has a wide range of wire diameter and porosity, such material might be more suitable for higher frequency pulse tube coolers. With the fiber as the regenerator material and after a series of optimizations, a noload temperature of 45 K is acquired in the experiment. Influences of various parameters such as frequency and inertance tube length have been investigated experimentally.

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“…Due to the higher operating frequency the length of device will be shorter but the pressure amplitude of oscillation will also be smaller. In order to overcome the disadvantage of smaller pressure amplitude an acoustic amplifier is added to the compressor [2,3]. The length and position of the stack is known to have significant effect on performance of thermoacoustic compressor.…”

Section: Introductionmentioning

confidence: 99%