Nathan Blassel

I work as an independent consultant specializing in the field of energy, offering services in data analysis, consulting and energy management. I propose the following services: • Consulting and data analysis, notably for decarbonation and energy efficiency / energy optimisation • Structuring methods and tools, training operational teams • Supporting teams on development or research projects

I help local authorities, consulting firms, and associations leverage mobility data to understand travel patterns and guide decision-making. My contribution: transforming raw data into actionable insights through data analysis and clear visualizations (maps, graphs). ✔ Mobility flow analysis: origin-destination studies, GPS data (apps, Floating Mobile Data), OpenStreetMap, field counts ✔ Cross-analysis of travel and infrastructure: accessibility, impact of developments, route continuity ✔ Modeling & forecasting: usage anticipation, impact of new infrastructures, comparison with other data sources ✔ Visualization & reporting: creation of graphs, interactive maps, reports ✔ Strategic recommendations ⚡ Project examples: ➡️ Cross analysis of Strava Metro Data and bikeways in Rio de Janeiro ➡️ Modeling real traffic data against various partial data sources ➡️ Creation of a cycling MinuteMap generator, available at https://cartes-minutes.lavilleavelo.org/

The Strava Metro Data Analysis Commission is one of the projects undertaken by the association's Research Working Group. The project involves: • Studying Strava Metro data to gain insights into cycling patterns. • Developing a robust methodology for analyzing georeferenced variables related to cyclomobility. • Generating statistical data to support cycling infrastructure planning. • Scaling the methodology to multiple Brazilian cities, enabling consistent data generation across regions. I have been responsible for the Rio de Janeiro region, collaborating closely with team members and representatives from other organizations. Together, we developed a methodology corresponding to the local needs, and generated data, maps and reports supporting the city’s current cycling infrastructure expansion plans.

R&D work on a Compressed Air Energy Storage project Literature review: - actual and in-development technologies used in the energy storage field - air compression and expansion challenges - thermodynamic equations and empirical correlations Analysis of thermodynamic behaviors Modeling of specific air compression (pressure, temperature) curves Development of performance indicators Optimization of the parameters of the compression chamber Modeling of the complete system through an association of thermodynamic, thermal, mechanical, hydraulic and electric parts

In charge of the development of a numerical environment in order to simulate motor-vehicle systems and observe their behavior and performance in diverse situations and conditions. Three different projects: - modeling a dump truck, with diesel motor and mechanical transmission - modeling a dump truck, with diesel motor and electromechanical transmission - modeling of an hydraulic fracking unit Development of models based on thermodynamic and mechanical theories. Implementation of different units (motor, motor controller, transmission systems, specific environment). Interviews within the staff to understand the vehicles characteristics in terms of specific uses. Comparison between the results of the models and measured datas under the same conditions Adjustment of empirical coefficients. Creation of an executable virtual environment. Publication of a documentation and recommendations when using the models.

Private teacher for maths and physics for pupils

Centrale Nantes Etudes is the Junior-Entreprise of the engineering school. During my first year there, I spend time approaching customers, realizing administrative documents in order to formalize and regulate the projects some students were developing with enterprises.

Industrial study project, realized with a team made of 6 students from our engineering school. Part-time project during 5 months, with Areva Cezus ( Compagnie Européenne du Zirconium) which manufactures materials made of zirconium for the nuclear cores. We worked on the quality database, with a focus on the implementation of new extractions procedures and non-quality costs analysis.