Applications & Pathways

This paper mainly focuses on the optimal design of a grid-dependent and off-grid hybrid renewable energy system (RES). This system consists of Photovoltaic (PV) Wind Turbine (WT) as well as Fuel Cell (FC) with hydrogen gas tank for storing the energy in the chemical form. The optimal components sizes of the proposed hybrid generating system are achieved using a novel metaheuristic optimization technique. This optimization technique called Improved Read More

Cement industry due to the decomposition of CaCO3 and the production of clinker emits large amounts of CO2 into the atmosphere. This anthropogenic gas can be captured and through its synthesis with green hydrogen methanol and finally synthetic fuels are achieved. By using e-fuel Europe’s climate neutrality objectives could be achieved. However the energy transition still lacks a clear roadmap and decisions are strongly affected by the geopolitical situ Read More

BACKGROUND: Norway is facing the challenge of reducing transport emissions. High speed crafts(HSC) are the means of transport with highest emissions. Currently there is little literature or experienceof using hydrogen systems for HSC.OBJECTIVE: Evaluate the economic feasibility of fuel cell (FC) powered HSC vs diesel and biodieseltoday and in a future scenario based on real world operation profile.METHOD: Historical AIS position data from the route co Read More

Growing expectations are being placed on green hydrogen-based steel for decarbonising the global steel industry. However the scale of the expected demand is dispersed across numerous case studies resulting in a fragmented picture. This study examines 28 existing scenarios to provide a cohesive view of future global demand. In the short term the demand for green hydrogen-based steel is expected to be limited constituting 2% of current total stee Read More

The increasing global residential energy demand causes carbon emissions and ecological impacts necessitating cleaner efficient solutions. This study presents an innovative hybrid energy system integrating wind power and gas turbines for a four-story 16-unit residential building. The system generates electricity heating cooling and hydrogen using a Proton Exchange Membrane electrolyzer and a compression chiller. Integrating the electrolyzer e Read More

The renewable hydrogen economy is recognized as an integral solution for decarbonizing energy sectors. However high costs have hindered widespread deployment. One promising way of reducing the costs is optimization. Optimization generally involves finding the configuration of the renewable generation and hydrogen system components that maximizes return on investment. Previous studies have included many aspects into their optimisations incl Read More

The decarbonization of the building stock in this paper focusing the single-family house sector in Germany is essential to achieve the climate goals. In fact as the largest part of the building stock it represents more than 65 % of the entire German residential building stock. Current strategies and regulations have demonstrated low impact on carbon emission reduction due to poor renovation rates particularly in the single-family house typology. The present Read More

Ammonia is a versatile energy carrier without carbon emissions that can be used for power generation. In this article a techno-economic analysis has been done to predict the levelized cost of electricity production using gas turbines with clean fuel in Iran. In the technical discussion the analysis of different scenarios of ammonia and hydrogen fuel composition ratio was done and by keeping the turbine inlet temperature to the same gas turbine as the Read More

In the context of renewable energy systems microgrids (MG) are a solution to enhance the reliability of power systems. In the last few years there has been a growing use of energy storage systems (ESSs) such as hydrogen and battery storage systems because of their environmentally-friendly nature as power converter devices. However their short lifespan represents a major challenge to their commercialization on a large scale. To address this issue the Read More

The energy hub (EH) concept is an efficient way to integrate various energy carriers. Inaddition demand response programmes (DRPs) are complementary to improving anEH's efficiency and increase energy system flexibility. The hydrogen storage system as agreen energy carrier has an essential role in balancing supply and demand preciselysimilar to other storage systems. A hybrid robust‐stochastic approach is applied herein toaddress fluctuations in wind Read More