The Burst Chamber is versatile and applicable across industries: • Hydrogen Mobility ▹ Testing on-board storage cylinders for cars, buses, trucks, and trains. ▹ Qualification of Type III & IV composite cylinders used in fuel cell vehicles. • Aerospace ▹ Destructive testing of lightweight composite tanks used in aircraft, spacecraft,and UAVs. • Defense & Security ▹ Ensuring reliability of hydrogen cylinders for military and homeland security applications. • Research & Development ▹ Universities and research institutions validating new designs. ▹ Collecting data for material science and composite modeling. • Energy Infrastructure ▹ Certifying cylinders used in refueling stations, hydrogen transport, and stationary storage.
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Introduction Hydrogen is being recognized worldwide as a cornerstone of the clean energy transition. It offers zero-emission potential, high energy density, and the flexibility to power cars, trucks, trains, aircraft, ships, and stationary energy systems. However, to make hydrogen safe for daily use, one critical question must always be answered: How strong are the cylinders that store it? Hydrogen is typically stored at very high pressures — 350 bar for heavy-duty transport and 700 bar for passenger vehicles. To withstand these conditions, cylinders are built from advanced composite materials such as carbon-fiber reinforced polymers (CFRP), often wrapped over aluminum or polymer liners. These cylinders are lightweight, but their layered structure and composite nature require extensive testing to prove they can survive years of service without failure. The Burst Chamber for Hydrogen Cylinder Testing was developed to provide the safest and most reliable environment for answering that question. It is a destructive test system designed to deliberately pressurize hydrogen storage cylinders far beyond their design limits, until they burst. This ensures that the cylinder’s true strength, burst pressure, and failure characteristics are fully understood. Much like an automobile crash test, where cars are intentionally destroyed to ensure they protect passengers in real accidents, this chamber pushes hydrogen cylinders to catastrophic failure under controlled and safe conditions. The insights gained from these tests are invaluable for manufacturers, certification authorities, and research organizations — making the chamber an essential tool in the global rollout of hydrogen technology. What the Burst Chamber Does The machine is designed to replicate the harshest possible conditions a hydrogen cylinder might face and go further until failure occurs. Here’s how it works: 1. Cylinder Placement – The test cylinder is placed securely inside the stainless steel inner chamber. 2. Filling Medium – The cylinder is filled with water (instead of gas) for safety, as water is incompressible and reduces explosive risk. 3. Controlled Pressurization – A high-pressure Haskel pump gradually increases the pressure inside the cylinder, while advanced transducers measure pressure and expansion in real time. 4. Failure Point – The cylinder eventually bursts under extreme pressure, releasing energy that is safely absorbed by the dual-wall containment chamber. 5. Data Capture – The entire event is logged: maximum burst pressure, the deformation pattern, rate of volumetric expansion, and the nature of failure (crack, split, or rupture). This process provides: • Proof that the cylinder meets safety regulations. • Insights into design improvements. • Certification data for international markets. Construction & Design The Burst Chamber is engineered for robustness, longevity, and operator safety. • Dual-Wall Containment System ▹ Inner Chamber: Constructed from high-grade stainless steel (SS) for hydrogen compatibility and resistance to corrosion from water exposure. ▹ Outer Chamber: Built from thick mild steel (MS), providing structural strength and containing energy released during a burst. • Heavy-Duty Door Assembly ▹ Reinforced with multi-point locking system. ▹ Equipped with mechanical and electronic interlocks that prevent the test from starting unless the door is fully sealed. ▹ Large viewing port or optional camera integration for monitoring. • Containerized Installation ▹ The entire system is built inside a 20-foot ISO shipping container. ▹ Container is fitted with electrical, hydraulic, and safety infrastructure, allowing plug-and-play operation at customer sites. ▹ Portable and modular — can be relocated or integrated with other hydrogen test facilities. • Build Quality ▹ All welds are ultrasonically tested for integrity. ▹ Surfaces are painted with industrial epoxy coatings for corrosion resistance. ▹ Internal chamber undergoes leak testing before dispatch. Instrumentation & Control Precision measurement and reliable control are essential for safety and certification testing. • Pressure Measurement ▹ High-accuracy transducers rated up to 5000 bar (±0.25% FS). ▹ Glycerin-filled gauges (0–5000 bar, class 1.0). ▹ Dual redundancy ensures reliability of readings. • Pumping System ▹ Haskel DSXHF-602 Air-Driven Liquid Pump. ▹ Delivers intermittent pressures up to 75,000 psi (≈5170 bar). ▹ Adjustable pressurization rates for slow ramp (to detect leaks) or rapid pressurization (for burst testing). • Control System ▹ PLC-based automation with touchscreen HMI interface. ▹ Operator can set pressure ramp rate, hold duration, and burst termination. ▹ Automatic data acquisition (DAQ) captures burst curve, volumetric expansion, and failure point. ▹ Ethernet/USB data export for certification reports. • Monitoring Systems ▹ Pressure vs. time curves displayed in real time. ▹ Automated safety shutdowns triggered if unexpected conditions are detected. Safety Features Testing high-pressure hydrogen cylinders is inherently dangerous, but the Burst Chamber is designed to make it safe: • Explosion-Resistant Chamber – Dual-layer construction ensures all fragments and shock waves are fully contained. • Emergency Shutdown – System depressurizes instantly within 2 seconds if alarms are triggered. • Safety Relief Valves – Redundant relief valves automatically release excess pressure to protect the chamber. • Door Interlock System – Operation is impossible unless the chamber door is sealed. • Alarms & Sensors – Continuous monitoring for leaks, high oil temperature, low hydraulic fluid levels, and filter clogging. • Camera & Lighting – Optional internal camera system to visually record cylinder failure for research and analysis. Key Specifications – Burst Chamber for Hydrogen Cylinder Testing
