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Numerical study on purge characteristics and purge strategy for PEMFC hydrogen system based on exhaust hydrogen recirculation

International Journal of Energy Research, 2022
The lumped parameter model of the hydrogen system based on exhaust hydrogen recirculation and the CFD model of PEMFC stack were established in this paper. The system simulation results were used as the input of the stack model.
Ben Chen   +5 more
semanticscholar   +1 more source

Analysis of Bicarbonate-Based Purge Solution in Patients With Cardiogenic Shock Supported Via Impella Ventricular Assist Device

The Annals of Pharmacotherapy, 2022
Background: The Impella device is a continuous axial flow pump which provides hemodynamic support by expelling blood into the aorta. The manufacturer recommends using dextrose-based heparin containing solutions as the default purge.
Kyle Bergen   +4 more
semanticscholar   +1 more source

Effect of misalignment at 2nd vane endwall on heat transfer with purge flow

, 2021
Since the domestic power plants are typically operated at a partial load rather than the design point, the thermal expansion decreases, resulting in misalignment between first stage rotor and second stage stator.
Jeongju Kim   +5 more
semanticscholar   +1 more source

Anode purge management for hydrogen utilization and stack durability improvement of PEM fuel cell systems

, 2020
Proton exchange membrane fuel cell (PEMFC) is one of the most promising power sources for vehicle applications. However, improving efficiency has always been the focus of researches for PEMFCs. To improve the hydrogen utilization and protect the stack of
Zhiyang Liu   +7 more
semanticscholar   +1 more source

Hydrogen utilization enhancement of proton exchange membrane fuel cell with anode recirculation system through a purge strategy

, 2020
Proton exchange membrane (PEM) fuel cells are widely considered as potential alternative energy candidates for internal combustion engines because of their low-temperature start, high energy density, and ease of scale up.
Kunlun Shen, Suhan Park, Young‐Bae Kim
semanticscholar   +1 more source

Regeneration energy analysis and optimization in desiccant wheels using purge mechanism

, 2020
As the desiccant wheel has been commonly used for dehumidification in drying process and cooling systems, purge mechanism has been commercially applied to reduce the energy consumption and improve its performance.
Shahrooz Motaghian, H. Pasdarshahri
semanticscholar   +1 more source

Effect of Purge on the Secondary Flow-Field of a Gas Turbine Blade-Row

, 2020
Turbine disc cooling is required to protect vulnerable components from exposure to the high temperatures found in the mainstream gas path. Purge air, bled from the latter stages of the compressor, is introduced to the turbine wheelspace at low radius ...
B. Schreiner   +3 more
semanticscholar   +1 more source

On Twitter Purge: A Retrospective Analysis of Suspended Users

The Web Conference, 2020
Abuse and spam in Twitter have long been a pressing issue, and in response, Twitter regularly purges (i.e., suspends in mass) accounts that violate Twitter Rules.
F. A. Chowdhury   +3 more
semanticscholar   +1 more source

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