Recent research has focused on energy recovery and storage technologies. One of the materials allowing the recovery of dissipated energy is the piezoelectric material (PE). These functional materials perform reversible energy conversion, transforming electrical energy into mechanical and vice versa. In this study, we investigate the recovery of vibratory energy in vehicle suspension systems—energy traditionally dissipated by conventional shock absorbers—using piezoelectric materials to capture this wasted energy and redirect it to the vehicle’s auxiliary power supply network. We propose an integrated electromechanical model incorporating piezoelectric actuators in parallel with the suspension mechanism. The collected energy is processed and stored for later use in powering accessories such as windows and mirrors. The idea is to integrate renewable energy sources to optimize the performance of the vehicle. We proposed a Multiphysics model of the system under a software used to this type of modeling (Simcenter AMESim v1610_student). The simulation results of the system and its various sub-systems are presented for studying the piezo-actuator response to reduce consumption and increase energy performance in a vehicle. These findings will undergo experimental validation in the project’s subsequent phase.

This research examines the feasibility of recovering and recycling condensate water, a waste byproduct generated by Atlas Copco ZR315 FF industrial air compressors utilizing oil-free rotary screw technology with integrated dryers. Given the growing severity of global water scarcity, finding alternative water sources is essential for sustainable industrial practices. This study specifically evaluates the potential of capturing and treating compressed air condensate as a viable method for water recovery. The investigation analyzes both the quantity and quality of condensate water produced by the ZR315 FF unit. It contrasts this recovery approach with traditional water production methods, such as desalination and atmospheric water generation (AWG) via dehumidification. The findings demonstrate that recovering condensate water from industrial air compressors is a cost-effective and energy-efficient substitute for conventional water production, especially in water-stressed areas like Morocco. The results show a significant opportunity to reduce industrial water usage and provide a sustainable source of process water. This research therefore supports the application of circular economy principles in industrial water management and offers practical solutions for overcoming water scarcity challenges within manufacturing environments.

This research examines the feasibility of recovering and recycling condensate water, a waste byproduct generated by Atlas Copco ZR315 FF industrial air compressors utilizing oil-free rotary screw technology with integrated dryers. Given the growing severity of global water scarcity, finding alternative water sources is essential for sustainable industrial practices. This study specifically evaluates the potential of capturing and treating compressed air condensate as a viable method for water recovery. The investigation analyzes both the quantity and quality of condensate water produced by the ZR315 FF unit. It contrasts this recovery approach with traditional water production methods, such as desalination and atmospheric water generation (AWG) via dehumidification. The findings demonstrate that recovering condensate water from industrial air compressors is a cost-effective and energy-efficient substitute for conventional water production, especially in water-stressed areas like Morocco. The results show a significant opportunity to reduce industrial water usage and provide a sustainable source of process water. This research therefore supports the application of circular economy principles in industrial water management and offers practical solutions for overcoming water scarcity challenges within manufacturing environments.

Solar photovoltaic (PV) systems play a pivotal role in sustainable energy generation, yet their efficiency declines with elevated operating temperatures caused by solar irradiance and environmental factors. To address this, hybrid, active, and passive cooling technologies have emerged as effective solutions, offering the dual benefit of temperature regulation and waste heat recovery for secondary applications. This paper presents a comprehensive review of recent advancements in PV cooling methods, analyzing their working principles, thermal performance, advantages, and limitations. Special emphasis is placed on hybrid cooling systems, which integrate multiple techniques to maximize efficiency, alongside active and passive approaches. Furthermore, the study explores the integration of heat recovery systems , such as heat pumps and thermal storage tanks , to repurpose waste heat for domestic, industrial, or space-heating applications, thereby enhancing overall energy utilization. The review concludes by identifying critical research gaps and future directions for optimizing PV cooling and heat recovery systems.

This study investigates the integration of a bio-sourced building material-specifically, conventional clay enhanced with 10% eggshell powder-into the envelope of a typical two-level building in Morocco. The thermophysical characterization of this composite (thermal conductivity, specific heat capacity, and density) was implemented into EnergyPlus to evaluate its application at the whole-building scale through dynamic thermal simulations. The research quantifies the composite's impact on indoor temperatures, energy consumption, and thermal comfort across three representative Mo-roccan climates: Casablanca (Nouacer), Tangier, and Nador. The simulation results demonstrate that integrating the 10% eggshell composite into the building envelope reduces heating and cooling energy demands by up to 40% compared to conventional clay. Furthermore, the material significantly improves indoor thermal comfort by re-ducing total annual discomfort hours outside the thermal comfort setpoint range (20.00-24.00 °C) by up to 40%, offering a viable pathway for greening the building stock through agricultural waste valorization.