Colombia
Economic Evaluation and Technoeconomic Resilience Analysis of Two Routes for Hydrogen Production via Indirect Gasification in North Colombia
Nov 2023
Publication
Hydrogen has become a prospective energy carrier for a cleaner more sustainable economy offering carbon-free energy to reduce reliance on fossil fuels and address climate change challenges. However hydrogen production faces significant technological and economic hurdles that must be overcome to reveal its highest potential. This study focused on evaluating the economics and technoeconomic resilience of two large-scale hydrogen productio Read More
Entropy Production and Filling Time in Hydrogen Refueling Stations: An Economic Assessment
Aug 2024
Publication
A multi-objective optimization is performed to obtain fueling conditions in hydrogen stations leading to improved filling times and thermodynamic efficiency (entropy production) of the de facto standard of operation which is defined by the protocol SAE J2601. After finding the Pareto frontier between filling time and total entropy production it was found that SAE J2601 is suboptimal in terms of these process variables. Specifically reductions of filling time fr Read More
Hydrogen Combustion in Micromix Burners: Present Stages, Opportunities, and Challenges
Nov 2024
Publication
Due to its low NOx emission index the micromix burner technology is a promising alternative for using hydrogen in combustion. Various universities and research centers in Germany England and Spain have documented and studied this technology. However the number of studies on micromix burners is limited which hinders their implementation on an industrial scale. The present study aims to review developed works focused on micromix combus Read More
Assessing the Impacts of Low-carbon Intensity Hydrogen Integration in Oil Refineries
Nov 2024
Publication
This paper evaluates the potential impacts of introducing low-carbon intensity hydrogen technologies in two oil refineries with different complexity levels emphasizing the role of hydrogen production in reducing CO2 emissions. The novelty of this work lies in three key aspects: Comprehensive system analysis of refinery complexity using real site data integration of low-carbon Hydrogen technologies long-term and short-term strategies. Two Colombian refi Read More
Experimental Assessment of Performance and Emissions for Hydrogen-diesel Dual Fuel Operation in a Low Displacement Compression Ignition Engine
Apr 2022
Publication
The combustion of pure H2 in engines is still troublesome needing further research and development. Using H2 and diesel in a dual-fuel compression ignition engine appears as a more feasible approach. Here we report an experimental assessment of performance and emissions for a single-cylinder four-stroke air-cooled compression ignition engine operating with neat diesel and H2-diesel dual-fuel. Previous studies typically show the performance and emissi Read More
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