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Xiaohan Jia

Researcher at Xi'an Jiaotong University

Publications -  35
Citations -  415

Xiaohan Jia is an academic researcher from Xi'an Jiaotong University. The author has contributed to research in topics: Gas compressor & Reciprocating compressor. The author has an hindex of 9, co-authored 26 publications receiving 255 citations.

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Fault diagnosis of reciprocating compressor valve with the method integrating acoustic emission signal and simulated valve motion

TL;DR: In this paper, a method of diagnosing faults in reciprocating compressor valves using the acoustic emission signal coupled with the simulated valve motion was proposed, which can easily distinguish the normal valve, valve flutter and valve delayed closing conditions.
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Improved rotary vane expander for trans-critical CO2 cycle by introducing high-pressure gas into the vane slots

TL;DR: In this paper, the rotary vane expander was proposed to replace the throttling valve in the trans-critical CO2 refrigeration system, and an improved structure was suggested by introducing high-pressure gas into the vane slots.
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Three-dimensional numerical simulation and experimental validation of flows in working chambers and inlet/outlet pockets of Roots pump

TL;DR: In this paper, two cases of three-dimensional computational fluid dynamics (CFD) were established to simulate the flow in Roots pumps, using the dynamic mesh method, and the results from the case with narrow pipes agreed much better with the experimental results in terms of pressure distribution.
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FSI model of valve motion and pressure pulsation for investigating thermodynamic process and internal flow inside a reciprocating compressor

TL;DR: In this article, a 3D computational fluid dynamics (CFD) model of a double acting reciprocating compressor was presented, in which a mesh mapping method was proposed to realize the independent motion of each valve plate.
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Study of a Rotary Vane Expander for the Transcritical CO2 Cycle—Part II: Theoretical Modeling

TL;DR: In this article, a mathematical model focusing on expander thermodynamics and vane dynamics was developed to investigate the major factors influencing the efficiencies of the rotary vane expander.