- Home
- A-Z Publications
- Publications
Publications
Techno-economic and Environmental Assessment of Renewable Hydrogen Import Routes from Overseas in 2030
Dec 2024
Publication
Converting renewable electricity via water electrolysis into green hydrogen and hydrogen-based products will shape a global trade in power-to-x (PtX) products. The European Union's renewable hydrogen import target of 10 million tonnes by 2030 reflects the urgent need for PtX imports by sea to early high-demand countries like Germany. This study evaluates the cost efficiency and greenhouse gas (GHG) emissions of four hydrogen carrier ship import Read More
A Rigorous Optimization Method for Long-term Multi-stage Investment Planning: Integration of Hydrogen into a Decentralized Multi-energy System
Dec 2024
Publication
Thoroughly assessing future energy systems requires examining both their end states and the paths leading to them. Employing dynamic investment or multi-stage optimization models is crucial for this analysis. However solving these optimization problems becomes increasingly challenging due to their long time horizons – often spanning several decades – and their dynamic nature. While simplifications like aggregations are often used to expedite solvi Read More
Exploring the State-of-operation of Proton Exchange Membrane Electrolyzers
Dec 2024
Publication
Proton exchange membrane electrolytic cells (PEMECs) have the potential to provide green Hydrogen as a sustainable energy source. PEMEC has already been applied at an industrially relevant scale. However it still faces challenges regarding reliability and durability especially in long-term operation. This review emphasizes the need for standardizing the cell configuration the testing protocols and the evaluation procedures to attain the optimum operation Read More
Renewable Hydrogen in Industrial Production: A Bibliometric Analysis of Current and Future Applications
Dec 2024
Publication
Renewable hydrogen is widely considered a key technology to achieve net zero emissions in industrial production processes. This paper presents a structured bibliometric analysis examining current and future applications of hydrogen as feedstock and fuel across industries quantifying demand for different industrial processes and identifying greenhouse gas emissions reduction potential against the context of current fossil-based practices. The findings highligh Read More
Large-scale Production of Green Hydrogen from Solar Energy in Australia: Operation and Control of a Multi-unit PEM Electrolyser System
Dec 2024
Publication
Large-scale production of hydrogen using clean electricity from renewable energy sources (RESs) is gaining more momentum in attempts to foster the growth of the nascent hydrogen energy market. However the inherited intermittency of RESs constitutes a significant challenge for the reliable and economic operation of electrolysers and consequently the overall hydrogen production plant. This paper proposes a power allocation control strategy to reg Read More
Numerical Modeling for Analysis and Improvement of Hydrogen Refueling Process for Heavy-duty Vehicles
Dec 2024
Publication
This paper presents the development validation and application of a numerical model to simulate the process of refueling hydrogen-powerd heavy-duty vehicles with a cascade hydrohen refueling station design. The model is implemented and validated using experimental data from SAE J2601. The link between the average pressure ramp (APRR) and flow rate which is responsible for the dynamic evolution of the refueling process was analyzed. V Read More
Local and Global Sensitivity Analysis for Railway Upgrading Between Hydrogen Fuel Cell and Electrification
Nov 2024
Publication
In the field of rail transit the UK Department of Transport stated that it will realize a comprehensive transformation of UK railways by 2050 abandoning traditional diesel trains and upgrading them to new environmentally friendly trains. The current mainstream upgrade methods are electrification and hydrogen fuel cells. Comprehensive upgrades are costly and choosing the optimal upgrade method for trams and mainline railways is critical. Wit Read More
Enhancing the Risk-oriented Participation of Wind Power Plants in Day-ahead Balancing, and Hydrogen Markets with Shared Multi-energy Storage Systems
Dec 2024
Publication
The increasing demand for renewable energy sources (RES) to address environmental concerns and reduce fossil fuel dependency highlights the need for efficient energy storage and balancing mechanisms to manage RES output uncertainty. However providing dedicated storage units to RES owners is often infeasible. Additionally the growing interest in hydrogen utilization complicates optimal decision-making for multi-energy systems. To tackle these Read More
Harnessing Enhanced Solar Efficiency for Green Hydrogen Production: A Comparative Analysis of PV and PV-T Systems
Dec 2024
Publication
Green hydrogen a critical element in the shift towards sustainable energy is traditionally produced by electrolysis powered by solar photovoltaic (PV) systems. This research explores the potential of underexploited photovoltaic thermal (PV-T) systems for efficient green hydrogen generation. This paper compares this advanced technology performance and economic viability against conventional PV setups. This paper uses TRNSYS simulation software to analyze Read More
Recent Developments in Sensor Technologies for Enabling the Hydrogen Economy
Dec 2023
Publication
Efforts to create a sustainable hydrogen economy are gaining momentum as governments all over the world are investing in hydrogen production storage distribution and delivery technologies to develop a hydrogen infrastructure. This involves transporting hydrogen in gaseous or liquid form or using carrier gases such as methane ammonia or mixtures of methane and hydrogen. Hydrogen is a colorless odorless gas and can easily leak into the atmosp Read More
An Updated Review of Recent Applications and Perspectives of Hydrogen Production from Biomass by Fermentation: A Comprehensive Analysis
Mar 2024
Publication
Dayana Nascimento Dari,
Isabelly Silveira Freitas,
Francisco Izaias da Silva Aires,
Rafael Leandro Fernandes Melo,
Kaiany Moreira dos Santos,
Patrick da Silva Sousa,
Paulo Gonçalves de Sousa Junior,
Antônio Luthierre Gama Cavalcante,
Francisco Simão Neto,
Jessica Lopes da Silva,
Érico Carlos de Castro,
Valdilane Santos Alexandre,
Ana M. da S. Lima,
Juliana de França Serpa,
Maria C. M. de Souza and
José C. S. dos Santos
Fermentation is an oxygen-free biological process that produces hydrogen a clean renewable energy source with the potential to power a low-carbon economy. Bibliometric analysis is crucial in academic research to evaluate scientific production identify trends and contributors and map the development of a field providing valuable information to guide researchers and promote scientific innovation. This review provides an advanced bibliometric analy Read More
Hydrogen, Medium-range Airplane Design Optimisation for Minimal Global Warming Impact
May 2024
Publication
This paper focuses on the conceptual design optimization of liquid hydrogen aircraft and their performance in terms of climate impact cash operating cost and energy consumption. An automated multidisciplinary design framework for kerosene-powered aircraft is extended to design liquid hydrogen-powered aircraft at a conceptual level. A hydrogen tank is integrated into the aft section of the fuselage increasing the operating empty mass and wetted a Read More
Eye-readable Sensors for Intuitive Hydrogen Monitoring
Apr 2024
Publication
Hydrogen energy is a cornerstone of the future climate-neutral economy. Yet as undetected leaks easily generate dangerous atmospheres sensing systems must timely detect accumulated hydrogen to prevent ignitions and explosions. Eye-readable sensors (ERSs) displaying intuitive readouts promise to guarantee safe use and universal access to hydrogen-based technology. This review highlights the impact of reversible ERSs in hydrogen moni tori Read More
Sustainable Integration of Green Hydrogen in Renewable Energy Systems for Residential and EV Applications
Jan 2024
Publication
The surge in interest surrounding renewable energy stems from concerns regarding pollution and the finite supply ofnonrenewable resources. Solar PV and wind hybrid renewable energy systems (HRES) are increasingly recognized as practicaland cost-effective solutions particularly in remote areas. However the intermittent nature of solar and wind power presents achallenge. To address this incorporating a hydrogen source into the system has been propo Read More
Efficient Solar-powered PEM Electrolysis for Sustainable Hydrogen Production: An Integrated Approach
Apr 2024
Publication
The coupling of photovoltaics (PVs) and PEM water electrolyzers (PEMWE) is a promising method for generating hydrogen from a renewable energy source. While direct coupling is feasible the variability of solar radiation presents challenges in efcient sizing. This study proposes an innovative energy management strategy that ensures a stable hydrogen production rate even with fuctuating solar irradiation. By integrating battery-assisted hydrogen productio Read More
Experimental Investigation of Hydrogen Enriched Natural Gas Combustion with a Focus on Nitrogen Oxide Formation on a Semi-industrial Scale
Mar 2024
Publication
Combustion of hydrogen-enriched natural gas is a valuable short-term strategy for reducing CO2 emissions from high temperature industrial heating. This paper presents several experiments on combustion characteristics and the formation of nitrogen oxides. The experiments included hydrogen contents up to 100% and fuel heat inputs up to 75 kW. Water-cooled lances were used to influence the furnace temperature. The analysis includes the distributio Read More
Modeling of Hydrogen Dispersion, Jet Fires and Explosions Caused by Hydrogen Pipeline Leakage
Dec 2023
Publication
Accidental hydrogen releases from pipelines pose significant risks particularly with the expanding deployment of hydrogen infrastructure. Despite this there has been a lack of thorough investigation into hydrogen leakage from pipelines especially under complex real-world conditions. This study addresses this gap by modeling hydrogen gas dispersion jet fires and explosions based on practical scenarios. Various factors influencing accident consequences suc Read More
Research on Characteristics of Hydrogen Dynamic Leakage and Combustion at High Pressure
Apr 2023
Publication
Hydrogen is promoted as an alternative energy given the global energy shortage and environmental pollution. A scientific basiscan be provided for the safe use and emergency treatment of hydrogen based on hydrogen leakage and combustion behavior.This study examined the stagnation parameters of dynamic hydrogen leakage and flame propagation in turbulent jets undernormal temperatures and high pressure. Based on van der Waals’ equation of stat Read More
Estimating Greenhouse Gas Emissions from Hydrogen-Blended Natural Gas Networks
Dec 2024
Publication
Methane is a significant contributor to anthropogenic greenhouse gas emissions. Blending hydrogen with natural gas in existing networks presents a promising strategy to reduce these emissions and support the transition to a carbon-neutral energy system. However hydrogen’s potential for atmospheric release raises safety and environmental concerns necessitating an assessment of its impact on methane emissions and leakage behavior. This stu Read More
Minimization of Construction and Operation Costs of the Fuel Cell Bus Transportation System
Dec 2024
Publication
This paper took the actual bus transportation system as the object simulated the operating state of the system replaced all the current diesel engine buses with fuel cell buses using electrolysis-produced hydrogen and completed the existing timetable and routes. In the study the numbers of hydrogen production stations and hydrogen storage stations the maximum hydrogen storage capacity of the buses the supplementary hydrogen capacity of the buses Read More
No more items...