Numerical and experimental investigation into passive hydrogen recovery scheme using vacuum ejector

Hwang, Jenn Jiang; Cho, Ching Chang; Wu, Wei; Chiu, Chin-Fu; Chiu, Kuo Ching; Lin, Chih Hong

doi:10.1016/j.jpowsour.2014.11.057

Cited by 33 publications

(2 citation statements)

References 20 publications

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“…Nikiforow K [6] designed a hydrogen ejector for the hydrogen cycle system of 5 kW power PEMFC, and test the hydrogen ejector by test platform, and verified the emission performance of the hydrogen ejector under different pressure drop of the induction loop, different inlet pressure and different hydrogen humidity. Hwang J [7] established a three-dimensional CFD model of ejector and carried out numerical simulation, and tested the performance of ejector on the test bench, and the experimental results show that the model accuracy of hydrogen ejector is high. Song Y [8] made the actual hydrogen ejector, and verified the accuracy of the model with the help of the test bench, and the relative error of the test data to the simulation data was within 7%, indicating that the CFD model had high accuracy.…”

Section: Introductionmentioning

confidence: 99%

Development of Hydrogen Circulation System Test Platform for High-Power Fuel Cell

Chen

Feng

et al. 2022

Advances in Transdisciplinary Engineering

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The increasing demand for high-power fuel cell system pushes the improvements of each subsystem, and hydrogen circulation system is one of the key subsystems. Therefore, it is necessary to establish a test platform for hydrogen circulation subsystem with complete testing capabilities and reliability. However, the research on the hydrogen circulation system test system is obviously lagging, especially in the performance test of the core components of the hydrogen circulation pump and the ejector. This paper adopts the modular design idea, develops a complete and reliable comprehensive performance test platform for hydrogen circulation system, designs the corresponding closed-loop control strategy of pressure and temperature, and finally conducts test verification.

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Section: Introductionmentioning

confidence: 99%

Development of Hydrogen Circulation System Test Platform for High-Power Fuel Cell

Chen

Feng

et al. 2022

Advances in Transdisciplinary Engineering

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“…At present, these researches concentrate on the structural parameter optimization and internal flow field analysis of ejectors. For example, Hwang et al [26] used a numerical simulation to study the influence of the inlet mass flow rate and nozzle throat diameter on the pressure, Mach number, temperature, suction channel mass flow, outlet channel mass flow and suction channel entrainment ratio. Nikiforow et al [27] designed an ejector for a 5-kW static PEMFC system.…”

Section: Introductionmentioning

confidence: 99%

Proton Exchange Membrane Fuel Cell Ejector Test Platform Design and Ejector Test Analysis

Chen

Mingtao

Pei

et al. 2021

WEVJ

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The hydrogen recirculation system is essential to the performance of the fuel cell system; the ejector device plays an important role in the hydrogen recirculation system. In this paper, a test platform which can simulate the fuel cell anode system is integrated for ejector performance testing. Based on the ejector test platform, an ejector device was tested under different operating conditions. The design of the ejector test platform, the test method and test process are introduced in detail. The test results of the ejector are compared with the Computational Fluid Dynamics (CFD) simulation results of different turbulence models. The results show that the standard k-e model is more accurate than other turbulence models at small and medium flow rates. At a large flow rate, the realizable k-e model has a higher simulation accuracy than other turbulence models.

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Experimental investigation and numerical calculation of the cryogenic ejector in a liquid nitrogen system

Jia

Gong

et al. 2021

Applied Thermal Engineering

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Numerical and experimental investigation into passive hydrogen recovery scheme using vacuum ejector

Cited by 33 publications

References 20 publications

Development of Hydrogen Circulation System Test Platform for High-Power Fuel Cell

Development of Hydrogen Circulation System Test Platform for High-Power Fuel Cell

Proton Exchange Membrane Fuel Cell Ejector Test Platform Design and Ejector Test Analysis

Experimental investigation and numerical calculation of the cryogenic ejector in a liquid nitrogen system

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