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Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 516-526 doi: 10.1007/s11708-022-0844-6

Abstract: A two-stage gas-coupled Stirling/pulse tube refrigerator (SPR), whose first and second stages respectivelyinvolve Stirling and pulse tube refrigeration cycles, is a very promising spaceborne refrigerator.a compact structure, high reliability, and high performance, and is expected to become an essential refrigeratorIn research regarding gas-coupled regenerative refrigerator, the energy flow distribution between thebetween the pressure wave and volume flow, are two critical parameters that could widely influence refrigerator

Keywords： Stirling/pulse tube refrigerator     displacer displacement     space application     phase shift     energy distribution    

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Theoretical modeling and experimental verifications of the single-compressor-driven three-stage Stirling-typepulse tube cryocooler

Haizheng DANG, Dingli BAO, Zhiqian GAO, Tao ZHANG, Jun TAN, Rui ZHA, Jiaqi LI, Ning LI, Yongjiang ZHAO, Bangjian ZHAO

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 450-463 doi: 10.1007/s11708-018-0569-8

Abstract: This paper establishes a theoretical model of the single-compressor-driven (SCD) three-stage Stirling-typepulse tube cryocooler (SPTC) and conducts experimental verifications.

Keywords： single-compressor-driven     three-stage     Stirling-type pulse tube cryocooler     theoretical modeling     experimental    

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Available energy analysis of new tandem double-capillary tube refrigeration system for refrigerator-freezers

HE Maogang, ZHANG Ying, SONG Xinzhou, ZHANG Jiantao

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 36-42 doi: 10.1007/s11708-008-0013-6

Abstract: A new tandem double-capillary tube refrigeration system for refrigerator-freezers is proposed.A capillary tube was added between the two evaporators in the fresh and frozen food storage chests tocalculate the thermodynamic performances of the new and the conventional refrigeration cycle of the refrigerator-freezerand 20.57%, respectively when the refrigerant is R12 and R134a, while that of the double-capillary tuberefrigeration cycle of the refrigerator-freezer is 23.97% and 23.44%, respectively.
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Three-dimensional numerical simulation of the basic pulse tube refrigerator

DING Wenjing, GONG Liang, HE Yaling, TAO Wenquan

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 48-53 doi: 10.1007/s11708-008-0008-3

Abstract: A three-dimensional physical and numerical model of the basic pulse tube refrigerator (PTR) was developedThe compressible and oscillating fluid flow and heat transfer phenomenon in the pulse tube were numericallyThe variations of velocity and temperature distributions in the pulse tube were also analyzed in detail

Keywords： refrigeration mechanism     three-dimensional     compressible     numerical     understanding    

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Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization

Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 345-357 doi: 10.1007/s11708-020-0708-x

Abstract: The high-frequency pulse tube cryocooler (HPTC) has been attracting increasing and widespread attention

Keywords： radiation heat leakage     active thermal insulation     cascade utilization     cold energy     performance improvement     cryocooler    

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Biodegradation of waste refrigerator polyurethane by mealworms

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1638-8

Abstract:

● Waste refrigerator polyurethane (WRPU) was ingested and biodegraded

Keywords： Waste refrigerator polyurethane     Mealworms     Biodegradation     Carbon balance     Gut microorganism    

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Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 517-521 doi: 10.1007/s11708-010-0004-2

Abstract: A 3D calculation model of a refrigerator-ejector was built and simulated in a compression/injection hybridthermodynamic parameters (the pressure of primary fluid and secondary fluid) on the performance of the refrigerator-ejectorThe boundary conditions were set according to the actual operating condition and the parameters of refrigerator

Keywords： refrigerator-ejector     FLUENT     thermodynamic parameters     entrainment ratio performance    

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Gas dynamic characteristic of displacer in Stirling cryocoolers

LIU Xinguang, LIU Dongyu, WANG Yong, WU Yinong

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 499-503 doi: 10.1007/s11708-008-0090-6

Abstract: Based on the vector analysis of the dynamic characteristic of the displacer in split-type Stirling cryocoolers
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Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11708-015-0390-6

Abstract: In this paper, the influence of the dimensions of the main parts of the small-scale Stirling thermo-acousticBased on the numerical simulation, a small-scale Stirling thermo-acoustic engine were constructed and

Keywords： thermo-acoustic Stirling engine     small-scale     simulation     experiment    

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Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 406-410 doi: 10.1007/s11684-012-0217-3

Abstract: esophagus is perfused directly by prominent arteries and may provide a more consistent tissue source for pulseThe goal of this study was to evaluate the sensitivity and accuracy of an esophageal pulse oximetry probeon patients during controlled hypoxemia in comparison to measurements obtained with conventional pulsesub> is more accurate and enables earlier detection of hypoxemia when compared to conventional pulse

Keywords： esophageal pulse oximetry     conventional pulse oximetry     hypoxemia    

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A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 1-10 doi: 10.1007/s11708-019-0655-6

Abstract: The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developed

Keywords： free piston Stirling generator (FPSG)     potassium heat pipe     power system     energy conversion    

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Multi-objective optimization in a finite time thermodynamic method for dish-Stirling by branch and bound

Mohammad Reza NAZEMZADEGAN, Alibakhsh KASAEIAN, Somayeh TOGHYANI, Mohammad Hossein AHMADI, R. SAIDUR, Tingzhen MING

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 649-665 doi: 10.1007/s11708-018-0548-0

Abstract: There are various analyses for a solar system with the dish-Stirling technology.optimization, three-objective, two-objective, and single-objective optimizations have been done on the dish-StirlingThe comparison of the results shows the benefits of MOPSO in optimizing dish Stirling finite time thermodynamic

Keywords： dish-Stirling     finite time model     branch and bound algorithm     multi-objective particle swarm optimization    

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Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 606-624 doi: 10.1007/s11709-023-0925-6

Abstract: A novel cambered surface steel tube damper (CSTD) with a cambered surface steel tube and two concaveThe steel tube is the main energy dissipation component and comprises a weakened segment in the middleSubsequently, two CSTD specimens with different steel tube thicknesses are fabricated and tested underA parametric study is conducted to investigate the effects of the steel tube height, diameter, and thicknessCompared with equal-stiffness design steel tube dampers, the CSTD exhibits better energy dissipation

Keywords： cambered surface steel tube damper     energy dissipation capacity     finite element model     hysteretic performance    

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Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 485-492 doi: 10.1007/s11705-019-1831-2

Abstract: A pulse plasma chemical vapor deposition (CVD) technique was developed for improving the growth yieldThe growth yield of the SWNTs could be improved by repetitive short duration pulse plasma CVD, whileDetailed growth dynamics is discussed based on a systematic investigation by changing the pulse parametersThe nucleation can be controlled by adjusting the pulse on/off time ratio and the total processing time

Keywords： single-walled carbon nanotubes     chirality-controlled synthesis     pulse plasma chemical vapor deposition    

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Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 333-345 doi: 10.1007/s11708-009-0061-6

Abstract: The tube bank fin is commonly used to increase the area of the heat transfer surface with a small heatThis paper focused on the effect of transversal tube pitch on the local heat transfer performance ofthe three-row flat tube bank fin mounted with VGs.On the fin surface, constructing the flow channel but without mounted VGs, the transversal tube pitchLarge transversal tube pitch is more sensitive to fin material than to fin thickness.

Keywords： heat transfer enhancement     vortex generator     finned flat tube bank     heat exchanger    

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Title Author Date Type Operation

Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Journal Article

Theoretical modeling and experimental verifications of the single-compressor-driven three-stage Stirling-typepulse tube cryocooler

Haizheng DANG, Dingli BAO, Zhiqian GAO, Tao ZHANG, Jun TAN, Rui ZHA, Jiaqi LI, Ning LI, Yongjiang ZHAO, Bangjian ZHAO

Journal Article

Available energy analysis of new tandem double-capillary tube refrigeration system for refrigerator-freezers

HE Maogang, ZHANG Ying, SONG Xinzhou, ZHANG Jiantao

Journal Article

Three-dimensional numerical simulation of the basic pulse tube refrigerator

DING Wenjing, GONG Liang, HE Yaling, TAO Wenquan

Journal Article

Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization

Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU

Journal Article

Biodegradation of waste refrigerator polyurethane by mealworms

Journal Article

Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Journal Article

Gas dynamic characteristic of displacer in Stirling cryocoolers

LIU Xinguang, LIU Dongyu, WANG Yong, WU Yinong

Journal Article

Simulation and experimental improvement on a small-scale Stirling thermo-acoustic engine

Mao CHEN,Yonglin JU

Journal Article

Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Journal Article

A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Journal Article

Multi-objective optimization in a finite time thermodynamic method for dish-Stirling by branch and bound

Mohammad Reza NAZEMZADEGAN, Alibakhsh KASAEIAN, Somayeh TOGHYANI, Mohammad Hossein AHMADI, R. SAIDUR, Tingzhen MING

Journal Article

Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research

Journal Article

Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Journal Article

Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted

Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,

Journal Article