Younes Bahammou

• Energy Engineering & Technology / Civil Engineering
• Marrakech at Cadi Ayyad University

We present an experimental investigation of a bentonite material as a function of different parameters like compaction intensity, water content, and sintering temperature. Three thermal states are considered in this study: a) immediately after sample preparation (ASP), b) after curing for 28 days followed by a drying process at 105 °C, and c) after...

Aromatic and medicinal plants are a natural source of pharmaceutical compounds with curative and therapeutic properties. They have been used for centuries to treat various ailments and offer alternative options to conventional treatments. Among these plants, Marrubium vulgare L., which is widely used in traditional medicine for diabetes treatment,...

This study aims to valorize coproducts from the anchovy processing chain by obtaining compounds of interest through the implementation of environmentally friendly and energy‐efficient techniques. These methods, which also apply to other fresh anchovy waste coproducts, seek to minimize the environmental pollution associated with conventional systems...

The solar drying of sewage sludge in greenhouses is one of the most used solutions in wastewater treatment plants (WWTPs). However, it presents challenges, particularly in terms of efficiency and drying time. In this context, the present study explores the drying performances of an innovative Combined Solar Greenhouse Dryer (CSGD) for sewage sludge...

Current study aims to analyze the drying kinetics of madder roots. To accomplish this, a conventional solar dryer was utilized to generate drying curves at 50, 55, and 60 °C, as drying temperatures. These curves were then fitted using established drying models. The results obtained from the experimental drying curves demonstrate that the drying rat...

As one of the main chili varieties in Mexico, Yahualica chili requires year-round availability. This study examines the feasibility of five drying methods (open-air, solar, microwave, freeze-drying and shade drying) used to preserve this culturally and economically valuable product. The results show the drying duration and rate for solar drying wit...

Given the seasonal nature and high perishability of Eriobotrya japonica fruits, employing effective preservation techniques like drying is crucial to minimize economic losses and extend the fruit's availability throughout the year. This study rigorously examines the drying kinetics of Eriobotrya japonica fruits using an indirect forced convection s...

This study aims to valorize co-products from the anchovy processing chain by obtaining compounds of interest through the implementation of environmentally friendly and energy-efficient techniques. These methods, which also apply to other fresh anchovy waste co-products, seek to minimize the environmental pollution associated with conventional syste...

The significant production of sewage sludge by wastewater treatment plants on a global scale and the lack of correspondence between housing development and the expansion of sanitation infrastructure indicate a genuine concern regarding environmental preservation. This study addresses the crucial issue of effective sewage sludge management and its e...

Apricots offer diverse health benefits, making them a valuable component of an attractive diet. In addition to ensuring the physicochemical and microbiological stability during storage and the year-round availability of this nutrient-dense fruit, apricot preservation, especially through sorption isotherm processes, also considers economic, nutritio...

This paper aims to study the possibility of incorporating wood ash or waste from the ground translational pottery into the formulation of ecological bricks. The lab-scale experimental study aimed to identify the best dosage for achieving ideal mineralogical, geotechnical, thermal, and mechanical properties in brick blocks through various formulatio...

This comprehensive research addresses the significant challenge of building‐related energy consumption in Morocco. Our innovative approach involves integrating phase change materials (PCMs) into hollow bricks, strategically addressing the diverse climate zones prevalent in the country. The primary focus is on enhancing energy efficiency within stru...

The current study aims to improve the thermal and energetic performances of building materials used in construction field and especially to meet the heating and cooling needs required by the Moroccan thermal building regulations (RTCM 2015). The study aims to investigate the possibility of incorporating wood ashes or crushed waste from traditional...

Most building materials exhibit hygroscopic behavior, wherein they absorb or release moisture from the surrounding environment until equilibrium is reached. This behavior can lead to expansion and shrinkage of the building materials, posing a risk of cracking mortar structures at an early stage. This research aims to enhance our understanding and c...

Purpose The paper aims to evaluate drying performance of earth mortar by solar drying for more durability, minimize pathologies in traditional construction and determine the influence of temperature and humidity on the microstructure of earth mortar using static gravimetric method. Design/methodology/approach A convective solar dryer was used for...

The paper aims to study the hygroscopic behavior of water absorbed by capillarity of clay reinforced with Chamarrops humilis fibers as an ecologic building material strongly used in building construction in Morocco. This leads to provide a better understanding and controlling hydrothermal behavior of a building material, which integrates sorption p...

This work deals with the study of the drying kinetics of Crocus sativus L. using convective solar drying. The main objective was to identify the influence of airflow drying temperatures for ambient air temperature ranged between 15.6 and 18.9°C, and a relative humidity between 24.4 and 46.5%. The equilibrium moisture content varies from 0.09 to 0.0...

This paper aims to analyze solar and microwave drying of Horehound leaves (Marrubium vulgare) from an exergetic point of view. Solar drying tests in forced convection were performed at airflow rates (150 and 300 m3/h) and air‐drying temperatures (60°C, 70°C, and 80°C), where the microwave tests were performed in microwave powers ranging from 50 to...

In this work the sorption behavior of Terfezia boudieri truffle was studied and evaluated using the static gravimetric method. This approach permits the measurement of the sorption isotherms at three given temperatures 30, 40, and 50°C. Where in the first step experimental sorption data was collected, and then was used in order to identify the ther...

The preservation of biological products during storage and transportation is a major issue taking into consideration theshort shelf-life of most natural foods and plants. Hot air dryingusingthermalenergy derived from the sun is the most operated technique to extend the shelf-life of plants and food materials. The investigation of this study propose...

The drying process is a fundamental operation in the industry that demands much energy and time, this method is used in order to increase the shelf life of the products as well as the mass and volume during the storage and the transportation. The moisture content permits the deterioration of quality through the microorganisms and the enzymatic reac...

Preserving food products through solar drying is a promising application. It is an efficient friendly environment technique to conserve food. The contamination of food is actually due to the presence of certain harmful microorganisms that deteriorate the products. Indeed, water activity in the product is one of the major causes of this problem. The...

Purpose This work aims to study the hydrothermal behavior of mortar cement toward certain environmental factors (ambient air temperature and air velocity) based on its drying kinetics data. The objective is to provide a better understanding and controlling the stability of mortar structures, which integrate the sorption phenomenon, drying process,...

The purpose of this work was to study the effect of the air-drying process on the dehydration kinetics of anchovy fillets. Experimental drying kinetics was measured at four air temperatures (50, 60, 70 and 80 ° C), a constant relative humidity of 150 m3 / h. The drying kinetics of the anchovies was accelerated by increasing the air temperature and...

Apple peels are available worldwide as organic waste from the food processing industries which have many functional groups that can be exploited for industrial such as food supplements. The valorization and conservation of this organic waste with good quality at a low cost still remains a big problem in the agro-food industry. Hence, a forced conve...

Fish is a highly perishable food product. It has a very short because it contains up to 78% of water. The aim of this work is to examine the effect of solar drying on the dehydration kinetics of Moroccan sardine fillets. The curves of the experimental kinetics of drying sardine fillets are carried out at four temperatures (50, 60, 70 and 80°C) with...

Cyclic drying has been reported as an innovative drying technique for the drying of food materials in terms of drying time, energy cost and product quality. In this study, drying characteristics and product quality of continuous and cyclic drying of Mytilus galloprovincialis in a convective solar dryer were investigated. A two-stage increasing–decr...

This work aims to model the adsorption isotherms and study the essential thermodynamic properties of Taraxacum Officinale’ powder during the moisture adsorption phenomenon at three temperatures 30, 40, and 50°C. The results have been determined by the application of the thermodynamics physical principles to the equilibrium data, which are experimen...

Drying kinetics of food materials treated under microwave irradiation is a crucial process to predict moisture content, design, and optimize the drying characteristics. In this study, the performance energy and exergy of two products of Dosidicus gigas and Mytilus Chilensis were analyzed undergoing microwave treatment. Basically fitting of five wel...

Durum Wheat is deemed as one of the most important agricultural elements in the food system. Gamma irradiation treatment proves to be an efficient technique to decontaminate cereals so that we can ensure their hygienic quality during conservation. This paper seeks to study the hygroscopic behavior of irradiated and non-irradiated durum wheat at thr...

In regards to the highly perishable character of most food products and plants, their conservation during large transportation distances and storage is a sensitive issue. The drying process is a method used to increase the shelf life of the products. It is a fundamental operation in the industry that requires energy and time. This process permits t...

Local fish markets are often saturated during periods of full production. Solar drying offers a suitable alternative to reduce losses of surpluses, and to preserve products for a longer period. In this respect, this work was carried out to study the effect of the air indirect solar convective drying process on the dehydration kinetics of anchovy. E...

Free water contained in porous structure of food plays a fundamental role in proliferation of microorganisms and bacteria that can damage the product materials. This work presents a thermo-kinetic study carried out in a natural and forced convection solar dryer; the objective was to establish the optimal conditions for drying and storing Herniaria...

Apple peel is an important nutrient source in human nutrition. Drying is essential for the conservation of this co-product. A comparative study for two methods of drying apple peels. Mathematical modeling of drying curves.

7th Mehrabian Seminary of Sciences and Technologies of Drying SMST-7

Drying is a process of hydration and Elimination of water which allows the proliferation of microorganisms and development of chemical reactions without influencing morphological structure of Food Material. This paper focused on the influence of temperature on drying kinetics of the Mediterranean mussels (mytilus galloprovincilis) as per the requir...

Adapting seasonal medicinal plants for human consumption and every day use, is one of the ultimate objectives for both pharmaceutical industry and traditional medicine. This work presents a thermo-kinetic study carried out in a forced convection solar dryer in order to establish the optimal conditions for drying and storing Marrubium vulgare L. lea...

This work aims to investigate the drying behavior of Terfezia Boudieri truffle in a thin layer convective solar dryer. In this work, different variables were taken into account. The slice thickness was 3, 6, 8 and 10 mm, the drying temperatures were 50, 60, 70 and 80 °C and air flow rates were 0.0416 and 0.0833 m³/s. The experimental data were anal...

This work aims to valorise a co-product resulting from the sardine processing chain (Sardina pilchardus) in order to obtain the compounds of interest by the implementation of soft techniques seeking a wider investment, low energy cost and low environmental pollution impacts caused by conventional systems, which are valid also for other co-products...

The aim behind this work is to demonstrate and validate a predictive experimental model of the thermophysical behaviors of the three argan products, leaves, pulps and fruits, using the experimental determination of sorption isotherms. They constitute an important information source to establish the stability of the products of argan and their condi...

Most biological products are highly perishable, so the issue of their conservation during large transportation distances and storage is a sensitive problem. Solar drying is the most useful method of keeping food staff safe in terms of both energy and time. Our work aims to contribute to the optimization of solar convective drying at the pulp of car...

Carob tree (Ceratonia siliqua L.) is native vegetation in the Mediterranean area; it is mainly cultivated for its environmental and economic benefits.