WP 6
WP 6
Testing and validation of storage systems
Testing and validation of storage systems
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The activities of WP6 will focus on the experimental analysis necessary for the design of the proposed storage systems, and the testing and experimental validation of the developed prototypes.
Specifically, the activities will primarily focus on the development of diagnostic methodologies for the thermal analysis of metal hydride tanks. These will be initially applied during the design and prototype construction phase to preliminarily determine the heat exchange characteristics of the developed systems and provide useful information for their optimization.
Subsequently, a test bench and an experimental campaign will be set up to test the developed prototypes. Testing on the prototypes will be aimed at fully characterizing the developed systems and their performance under various operating conditions, both reference and real-world.
The effects of the system layout and configuration on overall performance will be carefully assessed.
Great attention will be paid to characterizing the thermal performance of the developed storage systems. Specifically, for the prototype metal hydride/battery hybrid system, the system performance will be evaluated in relation to the thermal behavior of the batteries by analyzing the temperature distribution within them during typical operation. Furthermore, the kinetic performance of the systems will also be characterized during this phase, in order to determine the achievable filling/emptying times.
The results from the experimental measurements will be systematically compared with those obtained from numerical simulations performed on the models in the other WPs.
The WP 6 in divided into 3 tasks.
WP 6.1 TANKS
WP 6.1 TANKS
This section involves the development of testing, diagnostic and thermal analysis systems for tanks.
Initially, a diagnostic methodology will be developed to determine the temperature distribution inside metal hydride tanks. This will then be applied both during the design and construction phases of the prototypes, in order to identify the system configuration that promotes optimal thermal management, and in the subsequent testing phase of the developed prototypes.
In this phase, the preliminary design of the test bench set-up will also be carried out, intended for testing the prototypes in relation to different operating conditions, both reference and real.
WP 6.2 PROTOTYPE FOR STATIONARY APPLICATION
WP 6.2 PROTOTYPE FOR STATIONARY APPLICATION
This WP includes the experimental analysis of prototypes for stationary applications.
The prototypes created by the proponents will be tested in a controlled environment. Typical operating conditions at refuelling stations will also be emulated to assess the effectiveness of the thermal management system of all prototypes.
The operating conditions will also take into account the dimensional scale factors between stationary tanks and those of the vehicles to be refuelled.
The objective of this activity is also to test the flexibility of the developed system as climatic conditions vary and the number of refuelling operations expected during a typical day.
An analysis will also be carried out of the kinetic behaviour of stationary tanks during emptying operations under different operating conditions of the thermal management system.
The first two months of this task (pending the arrival of the prototypes produced in WP4) will be dedicated to setting up an adequate monitoring/testing infrastructure.
WP 6.3 PROTOTYPE FOR MOBILE APPLICATIONS
WP 6.3 PROTOTYPE FOR MOBILE APPLICATIONS
The activity of experimental analysis of prototype storage system for mobile applications will consist of testing a prototype hybrid battery/metal hydride storage system in a controlled environment.
The analysis will be conducted both during the tank emptying and filling phases. In the first case, the performance of the thermal management system will be evaluated, using the mission profiles estimated and testing the integrated tank as its operating conditions vary: e.g. hydrogen flows desorbed from hydride tanks.
The tests will be repeated both under reference operating conditions and under critical operating conditions in order to provide a comprehensive characterisation of the prototype. During the tests, all relevant parameters will be measured and characterised, such as hydrogen flow, test pressure and temperature, and tank surface temperatures.
The first two months of this task (pending the arrival of the prototypes produced in WP5) will be dedicated to setting up an adequate monitoring/testing infrastructure.
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