120 Hz pulse tube cryocooler for fast cooldown to 50 K

Srinivas Vanapalli; Michal Lewis; Zhihua Gan; Ray Radebaugh

doi:10.1063/1.2643073

120 Hz pulse tube cryocooler for fast cooldown to 50 K

Srinivas Vanapalli, Michal Lewis, Zhihua Gan, Ray Radebaugh

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

A pulse tube cryocooler operating at 120 Hz with 3.5 MPa average pressure achieved a no-load temperature of about 49.9 K and a cooldown time to 80 K of 5.5 min. The net refrigeration power at 80 K was 3.35 W with an efficiency of 19.7% of Carnot when referred to input pressure-volume (PV or acoustic) power. Such low temperatures have not been previously achieved for operating frequencies above 100 Hz. The high frequency operation leads to reduced cryocooler volume for a given refrigeration power, which is important to many applications and can enable development of microcryocoolers for microelectromechanical system applications

Original language	Undefined
Article number	10.1063/1.2643073
Pages (from-to)	072504-3
Number of pages	3
Journal	Applied physics letters
Volume	90
Issue number	2
DOIs	https://doi.org/10.1063/1.2643073
Publication status	Published - 12 Feb 2007

Keywords

METIS-242070
EWI-9523
IR-67010

Access to Document

10.1063/1.2643073

APL_Paper_Cryocooler_Srinivas

Cite this

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title = "120 Hz pulse tube cryocooler for fast cooldown to 50 K",

abstract = "A pulse tube cryocooler operating at 120 Hz with 3.5 MPa average pressure achieved a no-load temperature of about 49.9 K and a cooldown time to 80 K of 5.5 min. The net refrigeration power at 80 K was 3.35 W with an efficiency of 19.7% of Carnot when referred to input pressure-volume (PV or acoustic) power. Such low temperatures have not been previously achieved for operating frequencies above 100 Hz. The high frequency operation leads to reduced cryocooler volume for a given refrigeration power, which is important to many applications and can enable development of microcryocoolers for microelectromechanical system applications",

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AU - Lewis, Michal

AU - Gan, Zhihua

AU - Radebaugh, Ray

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Y1 - 2007/2/12

N2 - A pulse tube cryocooler operating at 120 Hz with 3.5 MPa average pressure achieved a no-load temperature of about 49.9 K and a cooldown time to 80 K of 5.5 min. The net refrigeration power at 80 K was 3.35 W with an efficiency of 19.7% of Carnot when referred to input pressure-volume (PV or acoustic) power. Such low temperatures have not been previously achieved for operating frequencies above 100 Hz. The high frequency operation leads to reduced cryocooler volume for a given refrigeration power, which is important to many applications and can enable development of microcryocoolers for microelectromechanical system applications

AB - A pulse tube cryocooler operating at 120 Hz with 3.5 MPa average pressure achieved a no-load temperature of about 49.9 K and a cooldown time to 80 K of 5.5 min. The net refrigeration power at 80 K was 3.35 W with an efficiency of 19.7% of Carnot when referred to input pressure-volume (PV or acoustic) power. Such low temperatures have not been previously achieved for operating frequencies above 100 Hz. The high frequency operation leads to reduced cryocooler volume for a given refrigeration power, which is important to many applications and can enable development of microcryocoolers for microelectromechanical system applications

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