M. BENMANSOUR Nadia

MCB

Directory of teachers

Department

Departement of Physics

Research Interests

composite materials Biocomposites, Characterization of materials, thermal properties, natural fibers, thermal comfort in buildings numerical modeling

Contact Info

University of M'Sila, Algeria

Email : nadia.benmansour@univ-msila.dz

On the Web:

  • Google Scholar N/A
  • ResearchGate
    ResearchGate N/A
  • ORCID N/A
  • SC
    Scopus N/A

Recent Publications

2023-02-08

Numerical modeling of effective thermal conductivity of composites based on the mortar date palm fibers for use as thermal insulating in building

The main objective of this paper is to evaluate the possibility of using date palm fiber (DPF) in mortar matrices to obtain a low thermal conductivity biocomposites material in view to reduce heat losses in buildings. The effective thermal conductivity of date palm fibers dispersed in the mortar matrix was investigated numerically as a function of filler concentration. The finite-element method was carried out for modeling the thermal heat transport. The effect of thermal contact resistance and the diameter of fibers on the composites are also taken into account. The numerical results are compared with our previously measured experimental data and some theoretical models.
Citation

M. BENMANSOUR Nadia, (2023-02-08), "Numerical modeling of effective thermal conductivity of composites based on the mortar date palm fibers for use as thermal insulating in building", [international] First international conference on materials science and applications , Khenchela University

Read Full Paper
2023-01-01

Effective Thermal Conductivity of Composites: Numerical Study

The objective of this paper was to estimate the effective thermal conductivity (Keff) values of the composite based on fibers, and to validate the experimental values measured in previous work. The paper focuses especially on the numerical investigation of the effective thermal conductivity (Keff) of date palm fibers/ mortar composite. The finite element model was employed for modeling the thermal heat transport. The effect of the inclusions concentrations, the diameter of fibers, and the thermal contact resistance on the composites is considered. The numerical results are compared with measured experimental data and some theoretical models. As conclusions, it was shown that adding date palm fibers to mortar leads to a diminution of the effective thermal conductivity. Also, the effect of each of the factors studied on the effective thermal conductivity is almost nonexistent. On the other hand, both theoretical and simulation models give close results with experimental values for the high concentrations of fibers.
Citation

M. BENMANSOUR Nadia, (2023-01-01), "Effective Thermal Conductivity of Composites: Numerical Study", [national] Computational engineering and physical modeling , Pouyan Press

Read Full Paper
2021-06-13

Conversion photothermique

Avant la crise énergétique de 1973, l'énergie solaire n'était presque pas explorée, sauf par
quelques laboratoires universitaires éparpillés dans le monde. Cependant, de nos jours, cette
source d'énergie renouvelable suscite un intérêt croissant.
Dans le domaine de l'énergie solaire, qui est la science appliquée de l'exploitation de l'énergie
solaire, plusieurs méthodes de conversion de cette énergie ont été explorées ces dernières
années, et elles sont désormais utilisées dans de nombreuses applications: le chauffage
domestique, la production d’électricité, le traitement des matériaux (réfractaires), la
production d’hydrogène, de méthane, etc.
Le type de conversion le plus couramment est la conversion photo-thermique qui consiste en
une transformation directe du rayonnement solaire en chaleur et de conversion indirecte
lorsque le rayonnement subit au moins une transformation préalable : conversion
thermodynamique, conversion thermochimique.
La conversion photo-thermique peut constituer un apport d’énergie non négligeable pour un
grand nombre d’applications thermiques, thermomécaniques et thermochimiques à condition
que des rendements de conversion élevés puissent être atteints dans une gamme de
températures relativement étendue.
Quatre catégories d’applications se dégagent en fonction de la température :
- Applications aux basses températures solaires (T < 60°C) : chauffage de l’eau sanitaire,
chauffage des piscines...,
- Applications aux moyennes températures solaires (60°C < T <150°C) : chauffage des
habitations, réfrigération, climatisation, dessalement de l’eau de mer, production d’énergie
mécanique...,
- Applications aux hautes températures solaires (150°C< T < 800°C) : production d’énergie
mécanique, production de vapeur, dissociation catalytique de l’eau...,
- Applications aux très hautes températures solaires (T > 800°C) : dissociation thermique de
l’eau, magnétohydrodynamique, thermo-électricité).
La conversion photo-thermique peut être réalisée par deux procédés différents : l’effet de
serre ou la concentration.
Citation

M. BENMANSOUR Nadia, (2021-06-13), "Conversion photothermique", [national] University of M'sila

Read Full Paper
2015-08-31

Experimental and modeling study of effective thermal conductivity of polymer filled with date palm fibers

The scope of this article is to evaluate the possibility of using waste date palm wood in polymer matrices to obtain a low thermal conductivity biocomposite material in view to reduce heat losses in buildings. Experimental and numerical investigation of effective thermal conductivity properties of composites were carried out using guarded hot plate method and 3D finite element modeling. Water absorption of composites materials was also investigated. The results showed that the thermal conductivity of the polymer-based materials decreases with increasing date palm fiber concentration and that the size of fillers has no significant effect. The water test revealed that the composites have a strong tendency to absorb water, particularly with increasing filler contents. POLYM. COMPOS.
Citation

M. BENMANSOUR Nadia, Haddadi Manel, Boudjemaa Agoudjil, Abderrahim Boudenne, Bertrand Garnier, , (2015-08-31), "Experimental and modeling study of effective thermal conductivity of polymer filled with date palm fibers", [national] polymer composites , Wiley analytical science

Read Full Paper
2014-06-19

Thermal and mechanical performance of natural mortar reinforced with date palm fibers for use as insulating materials in building

This paper presents an investigation on the use of a new material, composed with natural cement, sand and date palm fibers (DPF). The main goal is to evaluate the possibility of using this new material as insulating building materials. Several composites were prepared for different weight concentrations (from 0% to 30%) and for three sizes of fibers. Water absorption, thermal conductivity and compressive strength were experimentally investigated. The results reveal that the incorporation of DPF reduces the thermal conductivity and the compressive strength of the composite while reducing the weight. For a DPF loading lower than 15%, the composite satisfies both thermal and mechanical requirements of construction materials, and they could be used for wall structures. Thus, utilization of DPF as filler in mortar seems to be a very promising option which allows to be applied as thermal insulation materials in buildings.
Citation

M. BENMANSOUR Nadia, Boudjemaa Agoudjil,, Abdelkader Gherabli,, Abdelhak Kareche,, Aberrahim Boudenne,, , (2014-06-19), "Thermal and mechanical performance of natural mortar reinforced with date palm fibers for use as insulating materials in building", [international] Energy and Buildings , Science direct; Elsevier

Read Full Paper
2014-06-15

Study of Thermophysical and Mechanical Properties For New Composites Based on The Mortar and The Date Palm Wood to Use For Thermal Insulation In Buildings

This work focuses on the experimental study of thermophysical and mechanical properties of
mortar reinforced with date palm fibers (DPF) and to the evaluation of the possibility of using this
material as insulating component in buildings. The thermal and mechanical investigations were
carried out on different composite samples as a function of DPF loading and sizes.The
biocomposites were obtained by mixing cement, sand, and water for several palm wood fibres
concentrations. Drying tests were performed in the air for 48 hours in the moulds and 28 days
after moulding.
Citation

M. BENMANSOUR Nadia, (2014-06-15), "Study of Thermophysical and Mechanical Properties For New Composites Based on The Mortar and The Date Palm Wood to Use For Thermal Insulation In Buildings", [international] International Conference on Thermophysical and Mechanical Properties of Advanced Materials & 3 rd Rostocker Symposium on Thermophysical Properties for Technical Thermodynamics, p.144 , IZMIR, TURKEY

Read Full Paper
2013-04-27

Numerical Investigation of Heat Transfer of Silver-Coated Glass Particles Dispersed in Ethylene Vinyl Acetate Matrix

The effective thermal conductivity of silver-coated glass spheres dispersed in an ethylene vinyl acetate matrix was investigated numerically as a function of filler concentration. The finite-element method was carried out for modeling the thermal heat transport and to calculate the effective thermal conductivity of the composite for three elementary cells; simple cubic (SC), body-centered cubic (BCC), and face-centered cubic (FCC). The effect of the inclusion/matrix thermal contact resistance and the ratio of thermal conductivities of the filler-to-matrix material are also taken into account. The numerical results are compared with previously published experimental data and some theoretical models. The calculated values of the thermal conductivity of the SC model are in good agreement with the measured results for all the filler volume fractions. Numerical results for FCC and BCC models were found to be in good agreement with analytical models. The results show that the filler/matrix contact resistance has an important effect on the effective thermal conductivity.
Citation

M. BENMANSOUR Nadia, Boudjemaa Agoudjil,, Abderrahim Boudenne ,, Bertrand Garnier, , (2013-04-27), "Numerical Investigation of Heat Transfer of Silver-Coated Glass Particles Dispersed in Ethylene Vinyl Acetate Matrix", [national] International Journal of Thermophysics , Springer

Read Full Paper
2011

Etude des performances de produits renouvelables et locaux adaptés à l'isolation thermique dans le bâtiment

Ce travail porte sur l'étude théorique et expérimentale des propriétés thermophysiques de matériaux naturels, en l'occurrence le bois de palmier dattier, en vue de les utiliser dans le domaine de l'isolation thermique des bâtiments. L'étude expérimentale est composée de deux parties. La première partie est dédiée au processus de séchage. Dans la deuxième partie, on s'intéresse aux mesures expérimentales des propriétés thermophysiques de bois du palmier. Dans la caractérisation thermophysique, certains types de bois de palmier ont fait l'objet de mesures permettant de mettre en évidence l’effet de l’orientation des fibres. Enfin, une comparaison de ses propriétés à celles d'autres matériaux connus dans la littérature est effectuée.
Citation

M. BENMANSOUR Nadia, BOUDJEMAA Agoudjil,, BOUDENNE Abderrahim,, , (2011), "Etude des performances de produits renouvelables et locaux adaptés à l'isolation thermique dans le bâtiment", [international] 29ème rencontre de l’AUGC Tlemcen , l'Universite Abou Bekr Belkaid Tlemcen UABT

Read Full Paper
2010

Caractérisation thermique du bois de palmier dattier

Ce travail porte sur l’étude expérimentale des propriétés thermiques de deux parties de palmier dattier (pétiole, grappe) provenant de l’oasis
de Biskra et appartenant à quatre variétés de palmier dattier: Deglet Nour, Mech Degla, Elghers, Dhokar. Le travail présenté est consacré
dans un premier temps à l’élaboration des échantillons puis à la détermination de la conductivité thermique et enfin à la comparaison des
valeurs mesurés avec celles de bois de tronc , puis avec celles d’autres isolants.
Citation

M. BENMANSOUR Nadia, Boudjemaa Agoudjil, , (2010), "Caractérisation thermique du bois de palmier dattier", [national] Workshop sur les Energies Renouvelables et leurs Applications, WERA’10 , Université of Batna1

Read Full Paper
← Back to Researchers List