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Hydrogen Circulating Pump for Hydrogen Fuel Cell ...

Hydrogen Circulating Pump for Hydrogen Fuel Cell Circulation ...

Scroll Recirculation Pump for Fuel Cell | Air Squared Scroll ...

Hydrogen circulation pumps for fuel cells, such as PAM/PEM fuel cell systems (120 kW), optimize efficiency by recirculating unused hydrogen, requiring high gas tightness and corrosion resistance. Key types include diaphragm pumps, claw blowers, and lobe-type pumps, which manage wet gases and handle high operating pressures.

Key Hydrogen Circulation Pump Technologies

Claw Pumps/Blowers (e.g., Mink MH Series): These are ideal for PEM fuel cell systems up to 120 kW, providing dry and contact-free internal compression of hydrogen, with capacities from 18 to 40 cubic meters per hour.
Diaphragm Pumps (e.g., KNF): Known for being hermetically airtight, they are used in varied systems (forklifts, buses, marine), offering high pressure up to 7 bar and flow rates up to 60 L/min.
Lobe/Roots Pumps: Preferred in automotive applications for their high volumetric efficiency at high speeds, they excel at maintaining stable performance with low noise, as noted in the AIP Publishing report.
Vortex/Centrifugal Pumps: Suitable for specialized high-flow, high-pressure, or large-scale applications where high pressure-rise is required.

Key Features for Selection

Gas Tightness: All pumps must be highly leak-tight, often featuring sealless, magnetic drive designs, or specialized stainless steel/aluminum components.
Moisture Tolerance: Pumps must handle humid hydrogen gas from the stack exhaust (wet gases).
Scalability: Ranging from compact 24V units for smaller vehicles to high-flow units for heavy-duty, marine, and stationary backup power.
Performance: High-efficiency, low-noise designs with adjustable flow rates to match the fuel cell stack's fluctuating power needs.

Applications

Mobile Fuel Cells: Fuel cell passenger vehicles, buses, and heavy-duty trucks (e.g., Toyota Mirai).
Stationary/Backup: Power generation for buildings.
Industrial: Marine vessels and forklifts.

A new design method for the vortex hydrogen circulating ...
Dec 1, 2023 — Hydrogen recirculation pumps are key devices in fuel cell systems, and the spiral hydrogen recirculation pump has become the prefe...
AIP Publishing
Flow field analysis and performance study of claw hydrogen ...
Oct 6, 2021 — Due to its compact design, high efficiency, and outstanding low-temperature adaption performance, the lobe hydrogen circulating pu...
ScienceDirect.com
Hydrogen Pumps | KNF
KNF hydrogen pumps are used in: * **Fuel cell vehicles** Forklifts, busses, airport vehicles, and marine vessels * **Emergency and...
KNF Group

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Hydrogen Pumps

KNF Group

https://knf.com › global › solutions › industries › hydrog...

KNF Group

https://knf.com › global › solutions › industries › hydrog...

KNF offers cutting-edge hydrogen pumps for various applications. This includes hydrogen fuel cell vehicles, backup power generation and hydrogen handling.

Circulation Pump for Different Hydrogen Fuel Cell from knf.com

Hydrogen Circulation Pump DQ20

Hyfindr

https://hyfindr.com › ... › Hydrogen Pumps

Hyfindr

https://hyfindr.com › ... › Hydrogen Pumps

Hydrogen circulation pump designed for 150-200 kW fuel cell system · Small volume · Large flow · High voltage rise · Stable performance.Read more

Circulation Pump for Different Hydrogen Fuel Cell from hyfindr.com

Certified Hydrogen Fuel Cell Technology

Busch Vacuum Solutions

https://www.buschvacuum.com › ... › Industries

Busch Vacuum Solutions

https://www.buschvacuum.com › ... › Industries

Busch hydrogen recirculation blowers have been specially developed for the reliable recirculation of hydrogen in fuel cells.

Circulation Pump for Different Hydrogen Fuel Cell from www.buschvacuum.com

Missing: ~~Circulation~~ ‎| Show results with: Circulation

Research on the performance characteristics of hydrogen ...

Harvard University

https://ui.adsabs.harvard.edu › abs › abstract

Harvard University

https://ui.adsabs.harvard.edu › abs › abstract

by Y Gao2024Cited by 51 — The principles and characteristics of several mechanical pumps that can be used for hydrogen circulation are introduced, including root pump, claw pump, vortex ...Read more

A new design method for the vortex hydrogen circulating ...

AIP Publishing

https://pubs.aip.org › aip › adv › article › A-new-desig...

AIP Publishing

https://pubs.aip.org › aip › adv › article › A-new-desig...

Dec 1, 2023 — The hydrogen circulation pump is designed to recirculate the excess hydrogen gas from the fuel cell stack outlet back to its inlet through a ...Read more

Sealless Magnetic Drive Pumps for Hydrogen Fuel Cells

PTCXPUMP

https://www.ptcxpump.com › faq › data › Sealless-Mag...

PTCXPUMP

https://www.ptcxpump.com › faq › data › Sealless-Mag...

PTCXPUMP sealless magnetic drive pump is perfect for circulating coolant, ensuring efficient heat removal during hydrogen fuel cell operation.

Energy loss characteristics of hydrogen circulation pump ...

ScienceDirect.com

https://www.sciencedirect.com › article › abs › pii

ScienceDirect.com

https://www.sciencedirect.com › article › abs › pii

by Y Li2025 — Hydrogen circulation pumps (HCP) are key components in fuel cell systems, ensuring stable hydrogen recirculation and efficient utilization.Read more

High Purity Hydrogen Fuel Cell Circulation Pump Unit for ...

Made-in-China.com

https://m.made-in-china.com › ... › Self-Priming Pump

Made-in-China.com

https://m.made-in-china.com › ... › Self-Priming Pump

Circulating Pump ; Functions: 1. Improving Hydrogen Utilization In order to improve the reaction efficiency of fuel cells and reduce the reaction time of fuel ...Read more

Circulation Pump for Different Hydrogen Fuel Cell from m.made-in-china.com

$2,600.00In stockReview by MIC_BUYERFree delivery

China 10kw-15kw Fuel Cell Air Hydrogen Circulation ...

Hfsinopower.com

https://www.hfsinopower.com › Fuel Cell

Hfsinopower.com

https://www.hfsinopower.com › Fuel Cell

Best Hydrogen Circulation Pump supplier, Offer 10kw-15kw Fuel Cell Air Hydrogen Circulation Pump for many years. Factory price. Custom and OEM/ODM today!