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Source publication
This paper presents the design, modelling and
control simulation of the Balance of Plant (BoP) for a medium-
size PEM (Proton Exchange Membrane) electrolyzer.
Taking into consideration the main chemical process that
occurs in the electrolysis of a PEM electrolyzer, the BoP
must be clearly divided into two main parts: water management
and hydrogen p...
Contexts in source publication
Context 1
... to the water subsystem, the hydrogen subsystem must be thoroughly designed to guarantee the safety parameters, as well as the correct drying, in order to eliminate the humidity that may be contained, sending it back to the water level tank. The hydrogen subsystem, Figure 4, is made up the PEM stack, followed by a high pressure separator. The separator takes advantage of the pressure difference in water contained in the form of moisture to dry the hydrogen. ...
Context 2
... second test will show the behaviour of the hydrogen production subsystem according to the balance of plant shown in Figure 4 and the logic control designed in Fig- ure 6. Then, the test start considering a low level of condensates in HPS, Fig Figure 11a, and it will rise. ...
Context 3
... to the water subsystem, the hydrogen subsystem must be thoroughly designed to guarantee the safety parameters, as well as the correct drying, in order to eliminate the humidity that may be contained, sending it back to the water level tank. The hydrogen subsystem, Figure 4, is made up the PEM stack, followed by a high pressure separator. The separator takes advantage of the pressure difference in water contained in the form of moisture to dry the hydrogen. ...
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Citations
Water‐based hydrogen production is currently an attractive research field, as it provides a greener method to produce hydrogen than existing alternatives. Green hydrogen is expected to progressively replace fossil fuels, which are highly harmful environmentally. This paper presents a critical analysis over time of the main water splitting technologies currently in use for sustainable hydrogen production. As a result of the critical analysis, all the studied techniques have been ordered chronologically in the way that it is possible to understand how new materials have driven to new techniques, more efficient and less expensive. This allows having a complete vision of these technologies. A high level of maturity has been reached in electrolysis, while other techniques still have a long way to go, although many improvements and relevant advancements have been made over the years. The paper offers a global and comparative vision of each technology. From this, it is possible to identify the different paths where efforts are needed to make water‐based hydrogen production a mature, stable and efficient technology. Critical analysis over time of hydrogen production techniques based on water splitting. Chronological revision about photolysis, thermolysis and electrolysis. Historical achievements and current advances are presented. Technical comparison of water splitting‐based hydrogen production alternatives. Qualitative discussion over advantages and disadvantages of water splitting techniques.
