A5046619350- Spacecraft and Cryogenic Technologies
- Hybrid Renewable Energy Systems
- Advanced Battery Technologies Research
- Heat transfer and supercritical fluids
- Hydrogen Storage and Materials
- Gas Sensing Nanomaterials and Sensors
- Nuclear reactor physics and engineering
- Spectroscopy and Laser Applications
- Rocket and propulsion systems research
- Urban Heat Island Mitigation
- Phase Equilibria and Thermodynamics
- University-Industry-Government Innovation Models
- Fusion materials and technologies
- Solar Radiation and Photovoltaics
- Nuclear Materials and Properties
- Advanced Chemical Sensor Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Regional Development and Policy
- Chemical Thermodynamics and Molecular Structure
- Air Quality Monitoring and Forecasting
- Advanced Combustion Engine Technologies
- Refrigeration and Air Conditioning Technologies
- Building Energy and Comfort Optimization
- Magnetic confinement fusion research
- Superconducting Materials and Applications
Joint Research Centre
2013-2023
Ayuntamiento de Sevilla
2005
During the filling of hydrogen tanks high temperatures can be generated inside vessel because gas compression while during emptying low reached expansion. The design temperature range goes from −40 °C to 85 °C. Temperatures outside that could affect mechanical properties tank materials. CFD analyses and processes have been performed in HyTransfer project. To assess accuracy model simulation results compared with new experimental data for different strategies. comparison between experiments...
The influence of the initial tank temperature on evolution internal gas during refuelling on-board hydrogen tanks is investigated in this paper. Two different types tanks, four fuel delivery temperatures (from ambient to a pre-cooled at −40 °C), several filling rates and pressures are considered. It has been found that final increases linearly with increase while (ΔT) state charge (SOC) decrease increasing temperature. This dependency be larger type III than IV pressure. Additionally CFD...
Short refueling time and high final state of charge are among the main hydrogen car user's requirements. To meet these requirements, without exceeding tank materials safety limits, precooling is needed. Filling experiments with different inlet gas temperatures mass flow rates have been executed using two types on-board tanks (type 3 4). State has a strong dependency on temperature. This more visible for type 4 tanks. Lowest temperature (−40 °C) not always required in order to so energy...
At the JRC-IET, on-board hydrogen tanks have been subjected to filling–emptying cycles investigate their long-term mechanical and thermal behaviour safety performance. The local temperature history inside has measured compared with temperatures outside at tank metallic bosses, which is measurement location identified by some standards. outcome of these activities a set experimental data will be made publicly available as reference for studies validation computational fluid dynamics.
During the driving of a fuel cell car, expansion hydrogen along emptying high pressure storage tank produces cooling gas. The vessel can experience fast depressurization during acceleration or under an emergency release. This result on one hand in exceeding low safety temperature limit −40 °C inside on-board compressed and other its walls. In present paper, defueling experiments two different types tanks (Type III Type IV) have been performed all range expected rates. lowest temperatures...
In order to maximise European, national and regional research innovation potential the European Union is investing in these fields through different funding mechanisms such as ESIF or H2020 programme. This investment plan part of 2020 strategy, where concept Smart Specialisation also included. an policy designed promote efficient effective use public achieve economic growth. The Platform was created support this by assisting regions Member States developing, implementing reviewing their...
In this article we show a refueling strategy analysis using different injector configurations to refuel 70 MPa composite reinforced type 4 tank. The gas has been injected through single openings of diameters (3 mm, 6 mm and 10 mm) alternatively multiple small holes (4 × 3 mm). For each configuration, slow (12 min) faster fillings have performed. temperature measured at positions inside the tank, as well temperatures wall materials various locations: on external surface interface between...
This article portrays the European Commission's High Pressure Gas Tank Testing Facility (GasTeF), which is located at Joint Research Centre in Petten (the Netherlands). GasTeF one of few facilities Europe where research conducted on on-board compressed hydrogen storage systems. The facility designed to carry out pneumatic cycle and permeation tests according procedures prescribed by type approval regulations. as well suited for performing experiments replicating refuelling tanks also...
This article presents an analysis of the permeation tests established in current regulations for type-approval on board tanks hydrogen vehicles. The is done from point view a test maker, regarding preparation execution test. contains description required instrumentation and set-up to carry out according applicable standards regulations. Tank conditions at beginning test, configuration chamber, duration or rate be reported, are aspects that not well-defined In this paper we examine challenges...
Certification of hydrogen sensors to meet standards often prescribes using large-volume test chambers [1,2]. However, feedback from stakeholders such as sensor manufacturers and end-users indicates that chamber methods are viewed too slow expensive for routine assessment. Flow-through potentially an efficient cost-effective alternative performance A large number can be simultaneously tested, in series or parallel, with appropriate flow-through fixture. The recent development response times...