Hyfindr Tech Talks Hydrogen | Fuel Cell | Technology

Hyfindr - Let us build the Hydrogen Economy together!

Subscribe to never miss a technology innovation in the hydrogen economy! Hyfindr, a German startup, fuels the global hydrogen ecosystem with digital tools, expert knowledge, and a collaborative community. Gain insights through Hyfindr Tech Talks—your hub for advanced fuel cell technology, hydrogen education, and the best industry videos. Engineers, students, and professionals can dive deep into how the hydrogen economy works, exploring electrolyzers, zero-emission mobility, and real-world applications. Join us to unlock game-changing insights in the global hydrogen revolution!

  1. 10/23/2025

    #19 – Hyfindr Tech Talks – Hydrogen Tank Systems & Refueling | Jan Andreas – Argo-Anleg

    What actually makes up a hydrogen tank system—and how do you refuel safely at 350/700 bar? In this episode of Hyfindr Tech Talks, Jan Andreas (Argo-Anleg) joins Steven Oji to break down complete hydrogen storage systems for vehicles and vessels. From the on-tank valve (OTV) and thermal pressure relief device (TPRD) to the integrated gas handling unit (GHU) with sensors, solenoid valves, and pressure regulation, Jan explains how systems deliver hydrogen at the right pressure to fuel cells or H₂ ICEs. They also cover refueling protocols, IR communication between vehicle and dispenser, temperature management (pre-cooling to ~–40 °C and tank 65 °C limits), and real-world deployments—from buses and 40-ton trucks to swappable MEGC cartridges on a hydrogen push boat. You’ll learn about: System boundaries: refueling interface, tanks with OTV/TPRD, GHU block, outlet to fuel cell/engine Pressure & regulation: stepping down 350/700 bar to stack/application requirements Sensing & control: pressure/temperature sensing, solenoids, communications (IR handshake) Refueling engineering: ramp control, flow rates, hot-spot formation, pre-cooling to manage heat Applications & sizing: ~5–6 kg (passenger cars), ~20–30 kg (buses/medium trucks), ~40–60 kg (heavy trucks), hundreds of kg for maritime with swappable containers LH₂ vs compressed H₂: cryogenic challenges (≈–253 °C), boil-off, and why compressed storage often wins on complexity Ideal for vehicle integrators, storage engineers, and hydrogen infrastructure teams designing safe, efficient H₂ systems end-to-end. Explore more at Hyfindr.com

    21 min
  2. 10/20/2025

    #18 – Hyfindr Tech Talks – Manufacturing Metallic Bipolar Plates at Scale | Fabian Kapp – Gräbener

    How do you manufacture fuel-cell bipolar plates with high precision, high yield, and production-scale efficiency? In this episode of Hyfindr Tech Talks, Fabian Kapp (Gräbener) joins Steven Oji to walk through an end-to-end bipolar plate manufacturing line—from coil to stack-ready plate. Fabian explains hydroforming (up to ~2,500+ bar), precision laser cutting & welding, proprietary straightening for ultra-flat plates, and why cleaning, leak testing, and sealing are critical for quality and cost. He also shares practical lessons on OEE, staffing, and how to reduce scrap by controlling welding and base-material quality. You’ll learn about: Process flow: decoiling → hydroforming → cleaning → separation → laser cutting → laser welding → straightening → final clean → leak test → sealing → stacking Hydroforming details: pressure ranges, flexibility across materials/thicknesses, low tooling cost Laser operations: edge quality, port accuracy, 3D features, nitrogen assist Welding quality: fixturing/clamping, stitch seams, leak-tight designs around ports/fields Flatness & yield: straightening for stackability, scrap reduction, optical inspection Production reality: leak testing (pressure-drop/helium), staffing, maintenance windows, and OEE best practices Ideal for manufacturing engineers, operations leaders, and stack designers scaling fuel-cell production lines. Explore more at Hyfindr.com

    22 min
  3. 10/09/2025

    #15 – Hyfindr Tech Talks – Pressure Regulators for Hydrogen | Jack Samways – Pressure Tech

    How do pressure regulators deliver stable hydrogen pressure and flow for fuel cells, refueling, and electrolysis—safely and efficiently? In this episode of Hyfindr Tech Talks, Jack Samways (Pressure Tech) joins Steven Oji from the factory floor to unpack pressure regulator fundamentals and real-world hydrogen applications. Jack explains spring-loaded (manual) vs air-loaded (PLC-controlled) regulators, the decaying inlet effect, balanced main valves, and two-stage designs used for high-pressure systems. You’ll also hear where regulators fit across the hydrogen ecosystem—from electrolyzers and refueling stations to trucks, buses, and fuel cell stacks. You’ll learn about: Regulator basics: reducing 350–700 bar down to precise set pressures for fuel cells Flow vs. pressure requirements: orifice/Cv sizing for accurate delivery Stability & accuracy: decaying inlet effect, balanced main valve, and two-stage approaches Control strategies: manual set-and-forget vs air-loaded regulators with PLC control (ramp rates, temperature/pressure corridors) Where they’re used: electrolyzers (back-pressure regulation), H₂ refueling, and vehicle fuel cell systems Safety & standards (overview): responsiveness to J2601 fueling profiles, robust design practices aligned with hydrogen high-pressure expectations Perfect for system engineers, safety leads, and fuel cell integrators who need reliable pressure control across hydrogen applications. Explore more at Hyfindr.com

    23 min

About

Subscribe to never miss a technology innovation in the hydrogen economy! Hyfindr, a German startup, fuels the global hydrogen ecosystem with digital tools, expert knowledge, and a collaborative community. Gain insights through Hyfindr Tech Talks—your hub for advanced fuel cell technology, hydrogen education, and the best industry videos. Engineers, students, and professionals can dive deep into how the hydrogen economy works, exploring electrolyzers, zero-emission mobility, and real-world applications. Join us to unlock game-changing insights in the global hydrogen revolution!