R. Saadani

• Professor
• Professor at Université Moulay Ismail de Meknes

The fight against global warming is a goal shared by many countries, which are focusing on the development of hydrogen energy as an alternative, clean, and renewable energy resource. This chapter provides an overview of the different approaches to producing hydrogen from renewable and non-renewable resources. Nevertheless, the production of hydroge...

The environmental challenges stemming from fossil fuel consumption have spurred many countries and stakeholders to pursue energy transition solutions. One such technology is the direct solar floor system, which enhances sustainability and reduces environmental impact. In this study, a three-dimensional numerical model of a floor heating system was...

This paper deals with the results of an experimental research on the thermophysical and chemical properties of four types of plastic waste (PVC, HDPE, LDPE and PS). The objective is to test the feasibility of this waste (PW) without any addition (virgin) as thermal insulating material for filling hollow partitions. SEM coupled with scattering spect...

Piezoelectric materials have many interesting applications thanks to their ability to generate an electrical voltage when subjected to mechanical pressure, and vice versa. In the field of vibration energy recovery, these materials can convert mechanical vibrations into electrical energy. For example, piezoelectric sensors integrated into roads or p...

In the modern business landscape, the confluence of digital technologies with supply chain management (SCM) has ushered in an era of unprecedented change and opportunity. The concept of SCM, once rooted in traditional logistics and operational efficiency, has evolved into a sophisticated, technology-driven discipline. It is essential to leverage ad...

This chapter provides an in-depth review of the transport sector, it begins with a detailed assessment of the barriers to global transport expansion, including economic, infrastructural, regulatory, and technological issues. Beyond identifying barriers, it proposes practical approaches and recommended actions to overcome them. The second part exami...

The buildup of plastic waste (PW) in different ecosystems is a major environmental issue that has detrimental effects on people, wildlife, and their habitats. Our study aims to investigate specific plaster properties while reducing the rate at which end-of-life plastic is rejected in nature. This manuscript explores a gypsum composite reinforced wi...

The installation of direct solar floor (DSF) heating systems in Morocco is highly efficient due to its abundant solar potential, making it an optimal location for the implementation of solar energy systems. This system allows residential buildings to be heated in an environmentally friendly manner while reducing electrical energy consumption and gr...

Road transport of dangerous goods is the most accidental mode of transport, which can have an impact on the environment, including air pollution, global climate issues of concern, noise pollution, water pollution, accidents, land use and habitat fragmentation. The objective of this study is to manage the risks associated with Moroccan road transpor...

The building sector is one of the most energy-intensive fields in the world. Hence, enhancing the production techniques of traditional materials seems to offer a viable solution for tackling this challenge effectively. However, plaster is considered one of the most used construction substances thanks to its advantageous characteristics such as its...

The construction industry is a large consumer of cement which is used in concrete and mortar manufacture. Cement substitution would reduce its economic and environmental cost. This work is part of the local materials development such as cement and residual ash from thermal power plants. Our objective is to study the effect of ash fineness and repla...

Currently, energy storage is becoming a real challenge in the face of this industrial and economic technological transition. The orientation toward the strategy of use of phase change materials represents a sustainable and efficient alternative to reduce energy consumption in terms of heating during the period of intermittence and increase the ther...

The climate of the northern region of Morocco is Mediterranean, while the southern one is arid-type. They are both characterized by significant solar radiation during nearly eight months of the year, and as a result, direct and indirect solar energy contribute mainly to human discomfort in residential buildings. In this study, passive techniques su...

Due to their many advantages over conventional heating systems, underfloor heating systems have seen an increase in their use, particularly in the residential, commercial, and industrial sectors. The main objective of this work is to carry out a parametric study to predict the thermal behavior of various heating floor construction type, such as hom...

This research investigated the effect of adding Ferula Communis to building materials. Four ratios of this additive (2, 4, 6, and 8%) were used to replace gypsum in plasterboard and sand in mortar. Based on thermo-physical characterisation, it was observed that increasing the Ferula Communis content in the basic materials improved their thermal pro...

The Coronavirus (COVID-19) pandemic has been one of the many major epidemics in the world, affecting the health of millions of people and resulting in deaths. It prompted the authorities in all countries to take exceptional measures to protect the population from this virus, such as suspending commercial activities deemed non-vital and banning coll...

Thermal insulation is the most widely used solution to reduce the energy consumption of buildings. In order to minimize the cost and time needed to build an insulated wall as well as to decrease greenhouse gas emissions, this manuscript proposes to incorporate a bio-based insulation material into the air cavities of hollow bricks constituting the e...

Buildings frequently utilize radiant heating floors because they offer benefits including effective use of space and homogeneous temperature distribution, which results in increased thermal comfort. The present work aims to investigate the perfect use of floor heating systems analytically and numerically with improved thermal performance to prove t...

The development of electric vehicles (EVs) as a promising way to reduce greenhouse gas emissions has led to intensive and sustained research in the transportation sector. With advances in energy use and storage, electric vehicles offer competitive performance in terms of fuel consumption and energy perimeter compared to internal combustion engine v...

Enhancing insulating power of buildings envelope saves energy costs and minimizes associated CO2emissions. The development of materials with good thermal performance is a major challenge. This work shows the effect of incorporating different additions on the thermal properties of composites based on plaster and cement through a series of experiment...

This paper presents, in its entirety, an original experimental analysis which assesses simultaneously the influence of coffee waste incorporation and the water mixing ratio on plaster’s thermo-mechanical qualities. This investigation has additionally identified the optimal properties for the selection of the most suitable production scenarios hence...

The present contribution presents a comparison between two types of controls, namely, the optimal linear quadratic regulator (LQR) and the Kalman-LQG controller using the model order reduction process. Due to numerical constraints, the models of structures have been reduced so that the design of controllers and/or estimators could be performed. The...

This paper presents an implementation of a robust control LQG-Kalman model applied to composite Kirchhoff plate dynamics. A reduced model of a finite element method and control procedure is considered in the modeling of a structure because of the important number of piezoelectric patches used in control. Replacing the full model with a short model...

Currently, the development of energy production projects in the building sector using alternative energy sources such as solar energy are growing rapidly. This increasing technological progress to achieve the needs of comfort and safety can be considered a major priority, particularly with concerns about energy shortages and current environmental i...

Morocco has resolutely committed to the green transition of its economy by opting for industry decarbonation, which now imposes itself as an essential access criterion to foreign markets. Intending to include energy efficiency in the leading players in energy-intensive industries, this paper has the main objective of contributing to a better unders...

Energy efficiency through maintenance optimization in the industrial sector is a major challenge; it is a crucial factor that can help minimize energy costs, improve the performance of facilities and increase the economic competitiveness of the company. To date, less attention has been paid to improve energy efficiency through effective maintenance...

In recent years, building materials with a sustainable and reusable aspect, have gained an important position in the modern construction market. The main objective of this work is to evaluate the plaster thermo-mechanical properties according to three major influential parameters, which are mixing water ratio, natural additive concentration and int...

The construction industry has long been one of the most energy intensive sectors in the world. Therefore, the development of building materials appears to be one of the effective solutions to this challenge. Plaster is considered among the materials widely used in construction because of its advantageous properties. The present article includes in...

The road transport sector, particularly public transport, generates significant greenhouse gas emissions due to the excessive use of petroleum-based fuels. The use of alternative fuels with lower environmental impacts is therefore a major challenge to move towards a more sustainable public transport sector. In this context, the current study presen...

In recent years, the transition to a more sustainable and clean system has focused on the accelerated development of renewable energy technologies. This transition can be perceived as a major priority, especially with the current environmental concerns, threatening various aspects of human life. The objective of this article is, therefore, to highl...

Nowadays, optically smart thin materials are becoming more attractive to researchers in the field of building energy efficiency. This is due to their capacity to regulate radiative heat transfer through the dynamic variability of their optical properties depending on an external stimulus (natural or human). In this chapter, the categories of optica...

An analytical method on active vibration control of smart functionally graded laminated beam containing layers of piezoelectric materials, used as sensors and actuators, under a thermal load, is investigated. The properties of FGM layer are functionally graded in the z-axis direction according to the volume fraction power law distribution. During t...

The new construction models are based mainly on reducing energy losses through an efficient design of the building envelope. This article presents a passive design approach applied to a residential building located in Meknes. A set of parameters such as insulation and thermal capacitance, solar absorptance and glazing system, as well as external sh...

This article presents a simulation model comparison between a diode and two diodes of a photovoltaic cell. The simulation model created under the Matlab-Simulink environment predicts annual performances of the three photovoltaic field technologies connected to the grid. The simulation models have been validated by the experimental data of the photo...

In order to develop a mathematical modeling of the smart structure, the study consists of using, in first time, the finite element method and Euler-Bernoulli theory applied to a flexible beam divided into a finite number of elements. For this purpose, we define the beam represented by the imperfect FG material, partially bonded on both surfaces, fo...

The windows are considered the most sensitive part against external conditions in the building envelope. A suitable window selection reduces the energy requirements of a given building in a given climate. This article presents a parametric study of annual heating and cooling requirements for a commercial building, depending on the type and size of...

There are very few studies treating, with the same protocol, data arising from several identical photovoltaic systems installed at several sites. Results from the ‘Propre.Ma’ project are reported, they take profit from the combined advantage of having the same solar photovoltaic system in 20 different places in Morocco and, in each place, the same...

An analytical method on the active vibration control of a functionally graded beam equipped with layers of piezoelectric sensors and actuators, in a thermal environment, is studied. The study based on Euler-Bernoulli theory and finite element method, applied to a flexible beam divided into a finite number of elements. The equations of motion are ob...

This paper presents a dynamic study of sandwich functionally graded beam with piezoelectric layers that are used as sensors and actuators. This study is exploited later in the formulation of the active control laws, while using the optimal control Linear Quadratic Gaussian (LQG), accompanied by the Kalman filter. The mathematical formulation is bas...

Improving thermal insulation of buildings envelopes can reduce their energy consumption and related CO 2 emissions considerably. Searching for new and innovative insulation materials is therefore a key challenge. This work presents a synthesis study on series of experiments showing the addition effect of different additives on plaster and cement co...

An analytical method on the active vibration control of a functionally graded beam equipped with layers of piezoelectric sensors and actuators, in a thermal environment, is studied. The study based on Euler-Bernoulli theory and finite element method, applied to a flexible beam divided into a finite number of elements. The equations of motion are ob...

Recently, solar energy is considered as the most promising renewable energy source, due to the availability and advancement of the solar technologies. This paper presents an extensive energy, economic and environmental analysis of 2.04 kW p of polycrystalline (p-Si), 2.04 kW p of monocrystalline (m-Si) and 1.86 kW p of amorphous on microcrystalline...

In this paper, we proceed to a daily monitoring of module temperature T and incident solar irradiance G received on south faced tilted fixed photovoltaic solar module modelled by single diode equivalent electronic circuit. We assume that module series resistance Rs and shunt conductance Gp are constant and equal to values corresponding to standard...

In Morocco, Law 58/2015 has legalized the connection of photovoltaic systems on the low-voltage grid and the country should probably be adopting the net-metering approach. Since the electricity distributor should only buy a small part of the electricity injected, system over-sizing becomes critical for the investor. In these conditions, it is criti...

Improving thermal insulation of buildings envelopes can reduce their energy consumption and related CO2 emissions considerably. Searching for new and innovative insulation materials is therefore a key challenge. This paper presents an experimental study to show the effect of adding spent coffee grounds (SCGs) on thermal properties of plaster compo...

The photovoltaic is the technique used widely in the electricity production in applications of the renewable energy sources, and it is important to have a capacity to evaluate the performance of the systems installed. In this work, a model of simulation to predict the performance of technology system polycrystalline, connected to the grid and worki...

This paper aims at studying the thermal behavior of an under floor heating system via CFD calculations. The results have discussed some important parameters that need to be controlled for an appropriate operation of the system. These parameters include the velocity inside the pipes, inlet temperatures and the patterns of the tubing form. A new para...

Photovoltaic (PV) systems are the most promising renewable energy source in Morocco due to its abundant solar irradiation. The Moroccan government has launched various renewable energy programs to encourage the use of PV systems. In this work we present a comparative study in terms of energy produced and the efficiency of a grid connected photovolt...

Photovoltaic (PV) systems are the most promising renewable energy source in Morocco due to its abundant solar irradiation. The Moroccan government has launched various renewable energy programs to encourage the use of PV systems. In this work we present a comparative study in terms of energy produced and the efficiency of a grid connected photovolt...

The photovoltaic is the technique used widely in the electricity production in applications of the renewable energy sources, and it is important to have a capacity to evaluate the performance of the systems installed. In this work, a model of simulation to predict the performance of technology system polycrystalline, connected to the grid and worki...

Radiative rectification is one of the newest solutions for thermal building insulation. It is a phenomenon which has good analogy with electronic diode principle. It consists on being blocking for solar radiations in summer and passing radiations in winter. Among materials which have rectification capacity, Vanadium dioxide (VO 2) offers good appli...

The pool boiling phenomenon is used for the cooling of walls in several areas such as refrigeration and electrical energy production, in order to cope with the problems of thermal dissipation that limit significantly the current densities of operation. To quantify the thermal exchanges in pool boiling, we realized in one hand an experimental study...

This work presents a dynamic study of sandwich beams containing layers of Functionally Graded Materials (FGM) and piezoelectric layers, using the Euler-Bernoulli theory. The equations of motion are obtained by applying the Hamilton principle. The vibration frequencies are found by solving the eigenvalues problem. The theory proposed for the dynamic...

The grid connected PV systems are largely used in the applications of the renewable energy sources, and it is important to have a capacity to evaluate the performance of the systems installed. In this paper, the grid connected photovoltaic (Poly-Si), is presented, and its performance is evaluated under the weather conditions of Meknes city. The mat...

In Morocco, as in the rest of North Africa, the indoor climate of the houses leaves something to be desired. In summer, it is too hot and in winter too cold. This is why many homes install heating and air-conditioning equipment, which consumes large amounts of energy, with the high costs that this entails for them. However, it would be possible to...

In Morocco, it is currently difficult to obtain good quality insulation products at affordable prices, hence the need to develop and improve the quality of building materials in terms of thermal insulation by using Techniques for simple production and implementation. The aim of this work is to model the transfer of heat in building materials. The m...

Vanadium dioxide (VO2) is a material that has a great potential for building thermal insulation, spatially with his capacity of radiative rectification which is controlled by his transition temperature. Under the temperature of , VO2 has a semiconductor crystallographic structure; therefore it becomes transparent to visible and infrared solar radia...

The nucleate boiling is a phenomenon of heat transfer which occupies an important place in the industrial sector particularly in the areas of electric power generation and refrigeration, because it enable to reach high flux densities with relatively low temperatures differences. To quantify the thermal exchanges in pool boiling, we realized an expe...

The aim of this article is to study experimentally the thermal behavior and the energetic efficiency of a homogeneous multilayer wall. The chosen materials are polystyrene such as an organic insulation material and terra cotta such as an ecological insulation material. This work carried out consists of evaluating one by one the thermal performance...

In this paper, a performance analysis and economical/environmental assessment of two grid-connected PV systems in Meknes (Morocco) were carried out and their real energy production was reported. The PV system installed in an institutional building, consisted of polycrystalline silicon (Poly-Si) and monocrystalline silicon (Mono-Si) solar cell techn...

In weed management, the distinction between monocots and dicots species is an important issue. Indeed, the yield is much higher with the application of a selective treatment instead of using a broadcast herbicide overall the parcel. This article presents a fast shape descriptor designed to distinguish between these two families of weeds. The effici...

In weed management, the distinction between monocots and dicots species is an important issue. Indeed, the yield is much higher with the application of a selective treatment instead of using a broadcast herbicide overall the parcel. This article presents a fast shape descriptor designed to distinguish between these two families of weeds. The effici...

Theoretical and numerical results of the modeling of a smart plate are presented for optimal active vibration control. The smart plate consists of a rectangular aluminum piezocomposite plate modeled in cantilever configuration with surface bonded thermopiezoelectric patches. The patches are symmetrically bonded on top and bottom surfaces. A generic...

A high quality roasting approach for argan kernels is presented in this paper. Kernels color (i. e. brightness) is proposed as an index which determines the roasting quality. In fact, In order to test quality of argan kernels roasting, several experimentations were performed using a roaster containing CCD video camera, and a lighting system. This a...

A high quality roasting approach for argan kernels is presented in this paper. Kernels color (i. e. brightness) is proposed as an index which determines the roasting quality. In fact, In order to test quality of argan kernels roasting, several experimentations were performed using a roaster containing CCD video camera, and a lighting system. This a...

Smart structures with integrated sensors, actuators, and control electronics are of importance to the next generation high-performance structural systems. In this study, thermopiezoelastic characteristics of piezoelectric beam continua are studied and applications of the theory to active structures in sensing and optimal control are discussed. Usin...

A convenient representation of the microstructural evolution of 6061 aluminum alloy in income is to draw a diagram time, temperature, precipitations (TTP) which are worn areas of existence of each phase versus time and for each tempering temperature.

We assess the performances of the Incremental Unknowns numerical schemes when used in solving a time dependent 1D coupled nonlinear heat and mass transfer in a homogenous porous material. The formulation of this coupled heat and mass transfer phenomena is based on the simplified model of De Vries where it is assumed that the heat transfer due to th...