Study on the matching performance of a low temperature reverse Brayton air refrigerator

Hou, Yu; Yang, Shanju; Chen, Xingya; Chen, Shuangtao; Lai, Tianwei

doi:10.1016/j.enconman.2014.09.078

Cited by 27 publications

(23 citation statements)

References 19 publications

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“…The expander is the same one as shown in [11]. The compressor is newly designed for energy recycling.…”

Section: Coupling Analysismentioning

confidence: 99%

“…Due to advantages of high reliability, simple matching between expander and brake blower, easy regulation and so on, a brake blower is often used to regulate the turboexpander in small reverse Brayton refrigerator [5,11]. Hou et al [11] proposed a brake pressure feedback control to reverse Brayton air refrigerator, with which the maximum turboexpander efficiency could be obtained under different operating conditions. The refrigerator cooling capacity could be regulated through the brake blower.…”

Section: Introductionmentioning

confidence: 99%

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Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

Yang

Chen

et al. 2016

Energy Conversion and Management

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“…The expander is the same one as shown in [11]. The compressor is newly designed for energy recycling.…”

Section: Coupling Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

Yang

Chen

et al. 2016

Energy Conversion and Management

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“…(2) The refrigeration temperature range is wide and the operating performance is excellent under low temperature. The refrigeration temperature can be adjusted in a wide range above 0 ℃, which can meet the requirement of working in the field of low temperature under -30℃ for a long time, and this is the unique advantage of air refrigeration system.…”

Section: Working Principle Of Air Cycle Refrigeration Systemmentioning

confidence: 99%

“…But the alternatives are not only expensive but also partly toxic. Although the destruction of the Ozone layer resulting from the use of CFCs is effectively avoided, the influence of the unknown risk on people's daily life cannot be ignored [1,2]. Air cycle refrigeration technology is a kind of environment-friendly and resource-saving mode of refrigeration, for using air as the refrigerant, the cost is low and dispose of air generating no pollution.…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Air Cycle Refrigeration Technology

Xue¹,

Feng-lan²,

Li³

2016

Proceedings of The6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016)

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Abstract:In response to the global call of environmental protection, a kind of environment-friendly air circulation refrigeration system is analyzed . Working principle of air cycle refrigeration system is introduced.The advantages of air refrigeration system are summarized, and main research achievements and progress in related fields at home and abroad are briefly narrated. The application in the field of the research of air cycle refrigeration are introduced as a clean and environment-friendly refrigeration way, in addition, the future development direction and the prospect of air cycle refrigeration technology are also predicted. Air cycle refrigeration technology will take up an important position in the future air conditioning field according the analysis.

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“…Two kinds of journal bearings, copper wire support and viscoelastic support, were compared for small cryogenic turboexpander of 12 mm diameter around 220000 rpm [6]. Recently, bump foil journal bearings was applied in the above turboexpander that could operate smoothly in a wide speed range [25]. Numerical results indicated that the journal bearing was stable in high speed range [26].…”

Section: Introductionmentioning

confidence: 99%

Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander

Lai

Guo

Wang

et al. 2017

International Journal of Rotating Machinery

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Foil bearing provides compliant support and moderate Coulomb friction for rotor-bearing system, which is conducive to stability and reliability of high speed rotating machinery. In this paper, both hydrodynamic lubricated foil journal and foil thrust bearings are applied in a 150 m 3 ⋅h −1 turboexpander for air separation. In the bearings, protuberant foil is chosen as the supporting subfoil due to its merits of easy fabrication and assembly. Static loading and deflection of the bearings are tested, respectively, before integration into the turboexpander. Afterwards, the loading and deflection curves of the journal and thrust bearings are polynomial fitted using least-square method. Then, performance tests are carried out on the rotor-bearing system, including transient speed-up, high speed, and speed-down processes. In the tests, the turboexpander supported by the hydrodynamic foil bearings operates smoothly with repeatability. Maximal rotor speed of the turboexpander reaches 52000 rpm with hydrodynamic lubricated protuberant foil bearings.

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Study on the matching performance of a low temperature reverse Brayton air refrigerator

Cited by 27 publications

References 19 publications

Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

Research Progress of Air Cycle Refrigeration Technology

Development and Application of Integrated Aerodynamic Protuberant Foil Journal and Thrust Bearing in Turboexpander

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