Study on Key Parameters of Two-Stage Pressure Reducing Valve for 70mpa Hydrogen Supply System

2021 ◽  
Author(s):  
Chunjie Li ◽  
Zhixin Zhang ◽  
Wang ChunPeng ◽  
Shuiying Zheng
Keyword(s):  
Supply System ◽  
Two Stage ◽  
Hydrogen Supply ◽  
Pressure Reducing Valve

Study on Key Parameters of Two-Stage Pressure Reducing Valve for 70MPa Hydrogen Supply System

2020 ◽  
Author(s):  
Chunjie Li ◽  
Zhixin Zhang ◽  
Wang Chunpeng ◽  
Shuiying Zheng
Keyword(s):  
Flow Field ◽  
Structural Parameters ◽  
State Equation ◽  
Hydrogen Gas ◽  
Hydrogen Fuel Cell ◽  
Two Stage ◽  
Electric Bus ◽  
Hydrogen Supply ◽  
Supply Systems ◽  
Pressure Reducing Valve

Abstract With the increase of endurance mileage, 70MPa hydrogen supply systems are used more and more widely, in which pressure reducing valves are the key component. The flow field and the key parameters of 70MPa two-stage pressure reducing valve for hydrogen are studied in this paper. The two-stage pressure reducing valve with cone and flat valves is simplified to two-dimensional model, which is used in condition of high pressure difference with medium of hydrogen gas. Based on NIST real gas model and state equation of modefied Bennedict-Webb-Rubin (BWR), flow field simulation model is developed. A stepwise initialization method for convergence of calculation is proposed in the paper. The numerical simulations for the flow in two-stage pressure reducing valve are carried out. A set of structural parameters is obtained, which is reasonable for 500km hydrogen fuel cell electric bus.

Study of the carbon cycle of a hydrogen supply system over a supported Pt catalyst: methylcyclohexane–toluene–hydrogen cycle

2020 ◽  
Vol 10 (4) ◽  
pp. 1171-1181 ◽  
Author(s):  
Xiaotong Zhang ◽  
Ning He ◽  
Long Lin ◽  
Quanren Zhu ◽  
Gang Wang ◽  
...  
Keyword(s):  
Carbon Cycle ◽  
Supply System ◽  
Pt Catalyst ◽  
Carbon Loss ◽  
Hydrogen Supply ◽  
Hydrogen Cycle ◽  
Supply Systems ◽  
Supported Pt Catalyst

Owing to the importance of the carbon cycle and the universality of carbon loss in sustainable hydrogen supply systems, Pt-based catalysts were designed carefully for a reversible methylcyclohexane–toluene–hydrogen (MTH) cycle.

scholarly journals A Recycling Hydrogen Supply System of NaBH4 Based on a Facile Regeneration Process: A Review

Inorganics ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 10 ◽  
Author(s):  
Liuzhang Ouyang ◽  
Hao Zhong ◽  
Hai-Wen Li ◽  
Min Zhu
Keyword(s):  
Supply System ◽  
Regeneration Process ◽  
Hydrogen Supply

G124 Control of Hydrogen Supply System for Fuel Cell Electric Vehicles

2005 ◽  
Vol 2005 (0) ◽  
pp. 275-276
Author(s):  
Izuru Fujisawa ◽  
Kuniyuki Hirano ◽  
Takashi Saika ◽  
Shigehiko Yamamoto
Keyword(s):  
Fuel Cell ◽  
Electric Vehicles ◽  
Supply System ◽  
Fuel Cell Electric Vehicles ◽  
Hydrogen Supply

Optimization of the photovoltaic-hydrogen supply system of a stand-alone remote-telecom application

2009 ◽  
Vol 34 (13) ◽  
pp. 5304-5310 ◽  
Author(s):  
Guillermo Gómez ◽  
Graciano Martínez ◽  
José L. Gálvez ◽  
Raúl Gila ◽  
Raquel Cuevas ◽  
...  
Keyword(s):  
Supply System ◽  
Hydrogen Supply
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