Hybrid renewable energy systems are expected to become competitive to conventional power generation systems in the near future and, thus, ptimization of their operation is of particular interest. In this work, a hybrid power generation system is studied consisting of the following main omponents: photovoltaic array (PV), electrolyser, metal hydride tanks, and proton exchange membrane fuel cells...

An active and stable hydrogen evolution electrocatalyst composed of MoO 2 surface nanorod arrays was prepared using high-temperature reductive annealing. Electrodes with an area 78.5 cm were evaluated in a three-cell AEM electrolyser stack.

Maritime transport is investigating several options to reduce its greenhouse gases and air pollutant emissions. An experimental ship, Energy Observer, using excess renewable energy generate onboard hydrogen by electrolysis of purified seawater. As a promising option for storing energy, it can provide on-demand the ship through fuel cell (FC). FCs lifetime performance are correlated quality, pro...

Understanding the relationship between gas diffusion electrode (GDE) structures and performance of electrochemical CO2 reduction reaction (CO2RR) is crucial to developing industrial-scale technologies convert valuable products. We studied how microporous layer (MPL) on GDE's coated with silver nanoparticle catalysts affects conversion CO in a flow cell electrolyser. demonstrate convenient metho...

This paper describes the developments under a European Space Agency (ESA) activity for development of high-pressure steam electrolyser system exploration surface missions. The base case scenario considered is hydrogen and oxygen production unit lunar missions, where water generated from ice-bearing consolidated regolith.

Converting wood to grid quality methane allows to distribute a CO 2 free, renewable energy resource in a conventional energy distribution system and use it in transportation applications. Applying a multi-objective optimisation algorithm to a previously developed thermo-economic process model for the thermochemical production of synthetic natural gas from wood, the present paper assesses the pr...

The discrete regenerative fuel cell is being developed as a residential power control that synchronizes with a renewables load which fluctuates significantly with the time and weather. The power of proton exchange membrane fuel cells can be scaled-up adjustably to meet the residential power demand. As a result, scale-ups from a basic unit cell with a 25 cm(2) active area create a serpentine flo...

In the search for greener treatment technologies, this work studies the coupling of a wind turbine energy supply with an electrolytic cell (CWTEC device) for the remediation of wastewater polluted with pesticide 2,4-dichlorophenoxyacetic acid (2,4-D). The discontinuous and unforeseeable supply of energy is the main challenge inspiring this new proposal, which aims at reducing the environmental ...