A5004296076- Radiative Heat Transfer Studies
- Combustion and flame dynamics
- Numerical methods in inverse problems
- Wind and Air Flow Studies
- Thermal Radiation and Cooling Technologies
- Advanced Combustion Engine Technologies
- Gas Dynamics and Kinetic Theory
- Computational Fluid Dynamics and Aerodynamics
- Atmospheric aerosols and clouds
- Fire dynamics and safety research
- Fluid Dynamics and Turbulent Flows
- Thermochemical Biomass Conversion Processes
- Calibration and Measurement Techniques
- Atmospheric chemistry and aerosols
- Optical Imaging and Spectroscopy Techniques
- Heat Transfer Mechanisms
- Air Quality and Health Impacts
- Advanced Thermoelectric Materials and Devices
- Computer Graphics and Visualization Techniques
- Heat transfer and supercritical fluids
- Heat Transfer and Optimization
- Building Energy and Comfort Optimization
- Refrigeration and Air Conditioning Technologies
- Vehicle emissions and performance
- Urban Heat Island Mitigation
University of Lisbon
2015-2024
Instituto Politécnico de Lisboa
2010-2023
Instituto de Engenharia de Sistemas e Computadores Investigação e Desenvolvimento
2012-2023
Nova Institut
2021
Shanghai Center for Brain Science and Brain-Inspired Technology
2020
Shanghai Institute for Science of Science
2020
Fudan University
2020
Instituto Superior Técnico
1998-2016
Institute of Mechanical Engineering and Industrial Mangement
2007
Universidade do Porto
2004
Ammonia (NH3) is an inorganic substance considered as a promising fuel for power sector decarbonization. As result of the absence carbon in its structure, ammonia capable producing energy with zero CO2 emissions when burned. However, combustion NH3 presents several challenges low reactivity and flame speed well formation large quantities nitrogen oxides (NOx) frequent slip. A suggested solution gas turbines use rich-to-lean approaches, fuel-rich first-stage combustion, which mitigates NOx...
Theoretical analysis and experimental investigations have shown that the mean heat fluxes in turbulent gaseous flows are influenced not only by scalar fields (temperature molar fraction of species) but also fluctuations. It is widely recognized increase radiative comparison with laminar may exceed 100%. This interaction between turbulence radiation mainly due to nonlinearity emission temperature. particularly important reactive flows, since temperature fluctuations typically higher these...
Abstract Flameless combustion in a laboratorial combustor is numerically simulated. A comparison of different turbulence and models chemical reaction mechanisms reported. The results are validated using experimental data obtained small-scale fired with methane. calculations show that the employed do not yield significant differences, as far mean temperature major species concerned. Combustion based on flamelet concept predict steep rise CO2 molar fraction along axis data, even though they...
The discrete transfer method, often employed to calculate radiative heat in combustion chambers, is not conservative. reason for this behavior examined and a conservative formulation proposed evaluated. A simple treatment of isotropic scattering media also presented. original the method are applied two-dimensional three-dimensional enclosures containing participating medium. It shown that accuracy very similar, but has advantage ensuring energy conservation.