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Energy NewsEnergy News
Home Home - Patents
hydrogen

Nel Hydrogen Patents Novel Design for a Hydrogen Refueling Station

Arnes BiogradlijaBy Arnes Biogradlija11/07/20243 Mins Read
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This recent patent from Nel Hydrogen A/S introduces a novel design for a hydrogen refueling station, specifically focused on an advanced heat exchanger system to regulate the temperature of gaseous hydrogen. This technology is critical as effective and efficient hydrogen cooling is essential for maintaining the integrity and performance of hydrogen fuel cells.

Features and Improvements

The patented heat exchanger features a hydrogen pipe coiled around a center filler. The coolant enters the heat exchanger perpendicularly to the longitudinal axis of the center filler. This perpendicular entry point, combined with the function of a coolant pump, creates a radial swirling motion of the coolant around the center filler. Such a design ensures a more uniform and efficient heat exchange between the pipe’s swirling coolant and the hydrogen. This configuration addresses common issues in traditional linear heat exchangers where temperature gradients can lead to inefficient cooling and potential hotspots.

Potential Applications

1. Hydrogen Fueling Stations: The primary application is in hydrogen refueling stations. These stations can achieve quicker and safer refueling processes with improved heat management.
2. Industrial Applications: Industries relying heavily on hydrogen as a raw material or energy source could benefit from more efficient cooling processes.
3. Transportation: Enhanced cooling mechanisms could be critical for hydrogen-powered vehicles, ensuring better fuel management and longer operational lifespans.

Market Impact

Implementing this heat exchanger design could significantly impact the hydrogen market by addressing one of the critical barriers to efficient and safe hydrogen refueling. Improved cooling efficiency means reduced refueling times and enhanced safety, which is pivotal for hydrogen’s broad-scale adoption as a clean energy alternative. Moreover, such technological advancements can make hydrogen more competitive against other clean energy sources, accelerating market expansion.

Comparison with Existing Solutions

Compared to traditional heat exchangers used in hydrogen refueling stations, which often rely on linear flow paths and less optimized cooling, this patented design offers several enhancements:
– Efficient Cooling: The radial swirling coolant flow ensures heat is more evenly dissipated.
– Reduced Refueling Time: By optimizing heat exchange, the design may enable quicker refueling, a significant advantage over current slower, less efficient systems.
– Enhanced Safety: More uniform cooling reduces the risk of hotspots and associated dangers, such as pressure build-up or hydrogen leaks.

Technical Specifications

– Coolant Flow Path: Radial swirling around the center filler.
– Coolant Entry: Perpendicular to the longitudinal direction of the center filler.
– Hydrogen Pipe Coil: It is wrapped around the center filler, with entry and exit through the top and bottom flanges.
– Coolant Pump: Configured to introduce coolant at the perpendicular entrance to establish a swirling flow.

Key Takeaways

This patent represents a significant advancement in hydrogen refueling stations by addressing critical issues in heat exchange performance. The design’s innovative approach to coolant flow ensures more efficient and safer cooling of hydrogen gas. With its potential applications spanning various hydrogen-dependent sectors, this technology could play a pivotal role in hydrogen’s continued adoption and expansion as a clean energy source.

By making hydrogen refueling more efficient and safe, Nel Hydrogen A/S’s patented heat exchanger design may contribute to the renewable energy landscape, supporting a shift towards more sustainable and eco-friendly energy solutions.

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