Amores Ernesto · Rodríguez Jesús · Oviedo José · de Lucas-Consuegra Antonio
Open Engineering 2017;7:141

Engineering. Civil engineering

Alkaline water electrolysis powered by renewable energy sources is one of the most promising strategies for environmentally friendly hydrogen production. However, wind and solar energy sources are highly dependent on weather conditions. As a result, power fluctuations affect the electrolyzer and cause several negative effects. Considering these limiting effects which reduce the water electrolysis efficiency, a novel operation strategy is proposed in this study. It is based on pumping the electrolyte according to the current density supplied by a solar PV module, in order to achieve the suitable fluid dynamics conditions in an electrolysis cell. To this aim, a mathematical model including the influence of electrode-membrane distance, temperature and electrolyte flow rate has been developed and used as optimization tool. The obtained results confirm the convenience of the selected strategy, especially when the electrolyzer is powered by renewable energies.

1st degree connections


Gas fired boilers: Perspective for near future fuel composition and impact on burner design process
E3S Web of Conferences 2017 (https://doi.org/10.1051/e3sconf/20172200154)
The advancements on gas boiler technology run in parallel with the growth of renewable energy production. The renewable production will impact on the fuel gas quality, since the gas grid will face an increasing injection of alternative fuels (biogas,...

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Design and Implementation of a Data Acquisition System for Combustion Tests
Energies 2017 (https://doi.org/10.3390/en10050630)
In recent years, the biomass market has constantly increased. The pellet manufacture industry has started looking for new products, such as wastes from forest, agriculture, and agroindustrial residues, among others, with the potential to be used as b...

Enhanced Control for Improving the Operation of Grid-Connected Power Converters under Faulty and Saturated Conditions
Energies 2018 (https://doi.org/10.3390/en11030525)
In renewable energy based systems Grid-Connected Voltage Source Converters (GC-VSC) are used in many applications as grid-feeding converters, which transfer the power coming from the renewable energy sources to the grid. In some cases, the operation ...

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Development of Phase Lock Loop System for Synchronisation of a Hybrid System with the Grid
Nigerian Journal of Technological Development 2016 (https://doi.org/10.4314/njtd.v13i1.2)
Phase locked loop (PLL) is an important part of the control unit of the grid connected power converter. The method of zero crossing detection (ZCD) does not produce accurate phase information when grid is non-ideal. In this work, a synchronous refere...

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Rule-based Energy Management System in an Experimental Microgrid with the Presence of Time of Use Tariffs
MATEC Web of Conferences 2016 (https://doi.org/10.1051/matecconf/20167010011)
This paper aims to investigate a method of peak load shaving through the utilization of solar PV and battery energy storage whilst creating a cost effective Energy Management System (EMS). This is achieved by utilizing a rule-sets to manage and optim...

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Electrolyzer Performance Analysis of an Integrated Hydrogen Power System for Greenhouse Heating. A Case Study
Sustainability 2016 (https://doi.org/10.3390/su8070629)
A greenhouse containing an integrated system of photovoltaic panels, a water electrolyzer, fuel cells and a geothermal heat pump was set up to investigate suitable solutions for a power system based on solar energy and hydrogen, feeding a self-suffic...

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Biochars as Potential Adsorbers of CH4, CO2 and H2S
Sustainability 2017 (https://doi.org/10.3390/su9010121)
Methane gas, as one of the major biogases, is a potential source of renewable energy for power production. Biochar can be readily used to purify biogas contaminants such as H2S and CO2. This study assessed the adsorption of CH4, H2S, and CO2 onto fou...

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Numerical simulation on heat transfer characteristics of the storage tank for concentrating solar power plant
Advances in Mechanical Engineering 2016 (https://doi.org/10.1177/1687814016656105)
Concentrating solar power plant coupling with energy storage is a new and emerging technology, which can solve two issues, that is, low flux density and intermittent of solar energy. Heat transfer characteristics of the storage tank in this system ha...

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Thermal and Ash Characterization of Indonesian Bamboo and Its Potential for Solid Fuel and Waste Valorization
International Journal of Renewable Energy Development 2016 (https://doi.org/10.14710/ijred.5.2.95-100)

Bamboo has been widely used in Indonesia for construction, handicrafts, furniture and other uses. However, the use of bamboo as a biomass for renewable energy source has not been extensively explored. This paper describes the thermal and ash chara...


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Techno-Economic Evaluation of Solar Irrigation Plants Installed in Bangladesh
International Journal of Renewable Energy Development 2016 (https://doi.org/10.14710/ijred.5.1.73-78)

In the summer season, irrigation sector in Bangladesh suffers a lot due to the country wide electricity crisis. Solar pump offers a clean and simple alternative to the conventional fuel fired engine or grid electricity driven pump in this regard t...


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Predicting Harmonic Distortion of Multiple Converters in a Power System
Journal of Electrical and Computer Engineering 2017 (https://doi.org/10.1155/2017/7621413)
Various uncertainties arise in the operation and management of power systems containing Renewable Energy Sources (RES) that affect the systems power quality. These uncertainties may arise due to system parameter changes or design parameter choice. In...

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PENGARUH LAJU ALIR UDARA DAN WAKTU PROSES GASIFIKASI TERHADAP GAS PRODUCER LIMBAH TANGKAI DAUN TEMBAKAU MENGGUNAKAN GASIFIER TIPE DOWNDRAFT
Jurnal Bahan Alam Terbarukan 2016 (https://doi.org/10.15294/jbat.v5i2.6054)
The continued development of industry and agriculture along with unutilized of industrial and agricultural wastes properly, the waste will only be garbage which can be an interference to environment. Is required to have waste treatment technologies t...

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