Results 11 to 20 of about 135,845 (129)

Space‐Dependent Sobolev Gradients as a Regularization for Inverse Radiative Transfer Problems

Mathematical Problems in Engineering, Volume 2016, Issue 1, 2016., 2016
Diffuse optical tomography problems rely on the solution of an optimization problem for which the dimension of the parameter space is usually large. Thus, gradient‐type optimizers are likely to be used, such as the Broyden‐Fletcher‐Goldfarb‐Shanno (BFGS) algorithm, along with the adjoint‐state method to compute the cost function gradient.
Y. Favennec, F. Dubot, D. Le Hardy, B. Rousseau, D. R. Rousse, Maria Gandarias   +5 more
wiley   +1 more source

Optimizing gasification in downdraft fixed-bed gasifier through experimental and kinetic modeling

Case Studies in Thermal Engineering
Gasification is an effective way of converting biomass into electricity. However, determining optimal conditions to reach higher temperature gradients and ensure thermal stability of the reactors for syngas production is challenging.
Hamado Ouedraogo, Sayon dit Sadio Sidibe, Yohan Richardson, Laetitia Zoungrana   +3 more
doaj   +1 more source

Advancing small-scale biomass gasification (10–200 kW) for energy access: Syngas purification, system modeling and the role of artificial intelligence-A review

Energy Conversion and Management: X
Agro-industrial and food industries produce significant lignocellulosic bio-waste, which has a negative impact on the environment if poorly managed. Gasification provides a solution by converting this waste into energy.
Hamado Ouedraogo, Sayon Dit Sadio Sidibe, Yohan Richardson   +2 more
doaj   +1 more source

Efficacité énergétique et formes urbaines : élaboration d’un outil d’optimisation morpho-énergétique

Cybergeo, 2016
This paper deals with the link between urban forms and energy balance. Nowadays, many French urban planners recommend dense and compact cities to suit the imperatives of sustainable development.
Laëtitia Arantes, Solène Marry, Olivier Baverel, Daniel Quenard   +3 more
doaj   +1 more source

Improving optical efficiency of linear Fresnel collectors in the Sahel via position and length adjustment

Solar Compass
Linear Fresnel concentrators are promising technologies for solar thermal applications, but their performance is often hindered by end losses and inefficiencies related to receiver design and placement. This study aimed to enhance LFC optical performance
Souwera Stan Lionnel Somda, Kokouvi Edem N’Tsoukpoe   +1 more
doaj   +1 more source

Efficacité énergétique et captage de CO2 dans les centrales thermiques

, 2016
International audienceDans ce travail, les résultats technico-économiques qui ont permis d’évaluer le coût de production de l'électricité à partir des centrales au gaz naturel et au charbon avec le captage du CO2, et le coût par tonne de CO2 évitée sont ...
Bouallou, Chakib
core   +2 more sources

Evaluating Water–Energy–Food Nexus Strategies to Address Resource Scarcity in the Crocodile River Catchment, South Africa

Irrigation and Drainage, EarlyView.
ABSTRACT The water–energy–food (WEF) nexus approach highlights the interdependence of water, energy and food resources, all of which play central roles in agriculture, especially irrigation. A WEF nexus lens was applied to Mpumalanga's Crocodile River catchment, a vital irrigation area that significantly contributes to South Africa's staple food ...
N. Masekwana, M. van der Laan, S. Walker, Nicky Taylor   +3 more
wiley   +1 more source

Evaluating the suitability of six hydrophobic natural eutectic solvents as the internal phase in a cosmetic cream formulation

International Journal of Cosmetic Science, EarlyView.
Hydrophobic natural eutectic solvents can function as structural oil phase substitutes in creams prepared by low‐energy processes, enabling sustainable, regulation‐compliant formulations with desirable sensory profiles. Abstract Objective This work evaluates whether hydrophobic natural eutectic solvents can replace the conventional oil phase in ...
A. Verger, R. Grard, E. Vrignaud, X. Perse, S. Bouderbala, L. Boudesocque‐Delaye, M. Grisel, E. Gore, E. Munnier   +8 more
wiley   +1 more source

Efficacité énergétique [PDF]

, 2018
MasterLe document contient un diaporama, des exercices corrigés et un problème.Plan du diaporama : Introduction à l'énergie, Notions de rendementÉmissions de gaz à effet de serreProcédés énergétiques et leur efficacité Réglementation en matière d ...
Multon, Bernard
core   +1 more source

Consistency of performance indicators and simulation results in solar water heating studies: A comparison of RETScreen, TSOL and TRNSYS

Results in Engineering
Solar water heating simulations are widely used for feasibility assessment, system design, and optimisation. However, the reproducibility of such simulations and the consistency of reported performance indicators have received limited attention.
Kokouvi Edem N’Tsoukpoe
doaj   +1 more source