Energy Systems Commons^™

Design And Implementation Of A Smart Solar Tracking System Using Hydraulic Actuation, Bassem Nashaat Zakher, Mahmoud M. Ramzi, Kirolos A. Amin

Journal of Engineering Research

This research presents the design and implementation of a smart single-axis solar tracking system that introduces a novel integration of hydraulic actuation with minimalistic sensor control. Unlike traditional trackers that rely on multiple light sensors and complex mechanical setups, the proposed system uses a simplified control mechanism driven by a single-point light detection strategy to maintain panel alignment with the sun. The core innovation lies in replacing motor-driven tracking mechanisms with a hydraulic actuator, offering smoother, more durable movement with reduced maintenance. Additionally, the system integrates smart monitoring via Arduino, enabling real-time data processing and decision-making without relying on costly …

Investigation The Effect Of Integrating Solar Desalination Systems With Firefighting Networks For Coastal Cities, Ramy Elramy, Mohamed Mahgoub, Mohamed Abdelgaied, Ayman Refat Abd Elbar

Journal of Engineering Research

This study investigates integrating solar desalination systems with seawater-based firefighting networks as a sustainable solution for coastal cities facing freshwater scarcity. This study evaluates technical feasibility, economic impact, and operational performance by comparing conventional seawater firefighting infrastructure with systems utilizing desalinated water produced via solar energy. The methodology includes a detailed component and cost analysis of both systems, supported by experimental pump performance tests using varying salt concentrations and seawater. Results indicate that desalinated water systems offer significant economic savings—approximately 48.82%—due to reduced corrosion, lower maintenance demands, and improved pump efficiency. Experimental findings also show that increased salinity accelerates cavitation …

Combustion Characteristics And Cycle-To-Cycle Variations In A Diesel Generator Fueled With Used Frying Oil Biodiesel Blends, Shady Elmozy, Ahmad Khira Dr., E. A. El Shenawy Prof. Dr., Medhat Elkelawy Prof. Dr, Eng.

Journal of Engineering Research

This paper investigates the combustion characteristics and cycle-to-cycle variations in a stationary direct-injection diesel generator fueled with biodiesel derived from used frying oil (UFO) blended with conventional diesel. Used frying oil methyl ester (UFOME), referred to as UB100, was produced through a single-step alkali transesterification process and blended with diesel fuel in varying proportions (UB10, UB20, UB30, UB40, and UB50). Experiments were conducted on a single-cylinder, naturally aspirated diesel engine operating at a constant speed of 1500 rpm under five different load conditions: 0%, 25%, 50%, 75%, and 90%. In-cylinder pressure data from 400 consecutive cycles were analyzed to determine …

An Eulerian-Pfem Approach To Model Transient Capillary Forces On Moving Contact Lines Of Spreading Liquid Drops: Applications In Hydraulic And Fluid Dynamics, Elaf N. Mahrous, Syed Yousufuddin, Muhammad Saleem Professor, Mohammed N. Iqbal, Muhammad T. Bin-Saleem

Journal of Engineering Research

This study addresses the complexities of simulating multiphase flows, particularly the dynamics of droplet behaviour on solid substrates, which are influenced by intricate capillary interactions. Despite advancements in fixed-grid and moving-grid methodologies, there remains a critical gap in accurately modelling transient phenomena and dissipative forces at the solid-liquid interface. We introduce a novel Eulerian-particle finite element method (PFEM) framework that captures the transient capillary forces associated with the movement of contact lines in liquid droplet spreading scenarios. Through a numerical assessment of three established dissipative force models—Jiang’s, Bracke’s, and Seeberg’s we identify Jiang's model as the most effective and stable …

Performance Evaluation Of Novel And Efficient Integration Of Solar-Assisted Hvac System With Solar Humidification-Dehumidification Desalination System, Ahmed M. Khaira, Ahmed Hossam, M. M. Bassuoni, Mohamed Abdelgaied

Journal of Engineering Research

This paper aims to study the performance of a novel and efficient integration of a solar-assisted HVAC system with a solar humidification-dehumidification desalination system for hot climates. The proposed hybrid system aims to achieve thermal comfort conditions, produce freshwater, reduce the required power input, and reduce environmental pollution. To achieve this idea, we designed, constructed, and tested the novel hybrid system consisting of a solar-assisted HVAC system incorporated with a solar humidification-dehumidification desalination system. The device takes the rejected hot air that has passed over a solid desiccant and feeds it into a solar still to extract fresh water, while …

Numerical Investigation Of Heat Transfer And Pressure Drop In A Circular Microchannel Using Sio₂ Nanofluids, Mahmoud G. Abdelfatah, Osama E. Abd-Ellatif, Ahmed A. A. Attia, Abdelrady O. Elnady

Journal of Engineering Research

A numerical investigation was conducted to analyze the flow characteristics and heat transfer performance of a circular microchannel. using water and SiO₂+pure water nanofluids with volume fractions of 0.3%, 0.7%, and 1%. The microchannel was subjected to a constant heat flux of 100W, and the pressure drop, friction factor, and thermal resistance were evaluated for different Reynolds numbers ranging from 250 to 850. The results show that the addition of SiO₂ nanoparticles enhances the thermal performance of the microchannel by reducing the thermal resistance by up to 1.9% compared to pure water. However, the pressure drop increases with higher Np …

Evaluating Energy Efficiency And Thermal Performance In Egypt’S Social Housing: Climate-Responsive Design And Material Impact In Hot Desert Environments, Ahmed M. Hanafi, Mohamed A. Moawed, Osama E. Abdullatif

Journal of Engineering Research

As Egypt's urban areas expand rapidly, the demand for energy-efficient, affordable housing in extreme hot desert climates has become increasingly urgent. This study investigates the energy efficiency and thermal performance of Egypt’s Social Housing Project, with a focus on residential building in New Aswan City, where summer temperatures frequently exceed 45°C. Employing a validated energy model, this research simulates annual energy consumption for the building, which comprises 24 residential units, each approximately 86 m². The model integrates realistic occupancy schedules, region-specific weather data, and common household behavior patterns to closely reflect actual energy usage. Findings indicate a high alignment between …

Experimental Study On A Hybrid Solar Distillation System Integrated With A Photovoltaic Thermal Collector For The Co-Production Of Electricity And Freshwater, S. A. El Agouz, Mohamed Samy Abo Shala, Ayman Refat Abd Elbar

Journal of Engineering Research

This experimental study investigates the performance of a hybrid solar still system integrated with a photovoltaic (PV) panel and a cooling system, with the goal of enhancing both the freshwater productivity and the performance of the photovoltaic panel. Over a span of four consecutive days, four distinct experimental cases were tested in Tanta (Longitude/Latitude: E 31° 0′/ N 30° 47′), each with different cooling water flow rates of (3 L/min, 6 L/min, and 9 L/min) for cooling the lower surface of photovoltaic panel, and different hot water flow rates of (0.6 L/hr, 0.9 L/hr, and 1.2 L/hr) input to …

A Numerical Study On The Thermal Management Of Cylindrical Lithium-Ion Batteries By Immersion Cooling: Effect Of Coolant Distribution, Alhussein M. Abdel-Hafeez, Mohammed B. Effat, O. Hassan, N. Y. Abdel-Shafi

Journal of Engineering Research

Management of the temperature of lithium-ion batteries (LIBs) is critical for ensuring their safety and optimal performance. As the electric vehicle industry continues to evolve rapidly, the demand for efficient battery thermal management (BTM) technologies has grown. Among these, dielectric fluid immersion cooling (DFIC) has emerged as a particularly promising solution. In this study, we evaluate the impact of varying the coolant distribution on the performance of a cylindrical lithium-ion module comprising 20 cells. Coolant distribution was controlled by varying the number of coolant inlets from one to five, keeping the mass flow rate constant at 10 g/min. The performance …

Numerical Investigation Of Temperature Distribution Analysis For A Domestic Refrigerator With Different Duct Shapes, Faisal Elhabashy, A.A. Hawwash, Aly M.A. Soliman, Walid G. Alshaer

Journal of Engineering Research

The domestic refrigerator is one of the most home appliance used and the enhancement in its performance will has a significant effect on energy saving and environment. Preserving food at low and uniform temperatures is especially important to avoid Food spoilage and decreases the microorganisms. The aim of this study is to investigate numerically a different duct shapes to achieve an efficient cooling in the refrigerator and keep the temperature at the required range, using software called SIMULIA. The numerical model was developed to simulate the refrigeration system accurately, porous media and heat balance techniques were combined to the conservation …

A Review Of Performance Assessment Of Solar-Driven Absorption Chillers Incorporated With Energy Storage Systems, A. Khalil, Mohamed Abdelgaied, May Abdelsalam

Journal of Engineering Research

Abstract- This study evaluates the performance of a solar

collector absorption chiller combined with Phase Change Material (PCM) energy storage devices. Solar energy is used for energy-efficient cooling, and PCM storage improves

efficiency by capturing surplus thermal energy during

abundant solar radiation and releasing it when insufficient. The research assesses performance measures like

COP, energy storage capacity, and overall system efficiency.

Performance Augmentation Of Single-Slope Solar Distiller Using An Evacuated Tube Solar Collector: Theoretical Study, Eman Mohammed Abuelezz Eng., Yasser El-Samadony Prof., Khaled Khodary Esmaeil Assoc. Prof., Mohamed Elsheshtawy Zayed Dr.

Journal of Engineering Research

In this research, the performance analysis of a solar-powered desalination system incorporating a single slope-slope solar still and an evacuated tube solar collector is theoretically investigated. The system comprises a solar evacuated tube that absorbs solar radiation, transferring heat to saline water. This water then flows into a solar still, where it absorbs solar energy, boosting the evaporation rate. Two solar distillers, namely the conventional solar distiller (Still-I) and solar still integrated with evacuated tube solar collector (Still-II), are simulated and analyzed under identical outdoor conditions in Tanta, Egypt. A comprehensive theoretical model, developed using FORTAN programming, simulates the performance …

Numerical Analysis Of Flow Fields For The Different Models Of The Shrouded Savonius Rotor, Alsaied Khalil Mahmoud, Mohamed Mahgoub Bassuoni, Mohamed Fawzy Obiaa, Ahmed Mostafa Khaira

Journal of Engineering Research

In this study, the effect of three different lengths (short, medium, and long) of flanged shrouded Savonius wind turbines is investigated three-dimensional (3-D) numerically by ANSYS-FLUENT. The 3-D numerical model of a simple rotor is validated by comparing the results with previous published experimental ones at the same operating conditions and geometry. The numerical and experimental results indicate a good agreement with each other when using the SST K-ω model with a time step size of 0.0025 s.The analysis of the numerical results of the three flanged shrouded models shows an enhancement of the torque coefficient at tip speed ratio …

Enhancing The Performance Of Conventional Solar Still Using The Nano-Doped Paint (Ndp) Coating, Hagar Alm-Eldin Bastawissi Prof.Dr, Nermin Elgendy Engineer, Ayman R. El-Tohamy

Journal of Engineering Research

Nations are throughout the entire globe continuously confronting the problem of potable water shortage. Recently, it has been thought that using solar energy to desalinate brackish water offers a practical answer to the world's water crises. The output of these stills, is meager, and academics haven't done much to boost it in any way. Solar distillers have been proposed as an efficient method to produce potable water. In recent years, saltwater has produced drinking water by various ways. The efficiency of a solar distiller is significantly influenced by various factors, most important factor of them is the absorber surface. In …

Numerical Study Of The Effect Of Long Shroud Diffuser With And Without Plate Obstacle On The Performance Of Savonius Wind Turbine, Alsaied Khalil Mahmoud, Mohamed Mahgoub Bassuoni, Mohamed Fawzy Obiaa, Ahmed Mostafa Khaira

Journal of Engineering Research

This study presents the three-dimensional (3-D) numerical analysis of the influence of the plate obstacle installed at the entrance of the long flanged diffuser on the simple Savonius rotor performance by ANSYS 2022 R1. In the beginning, the 3-D numerical model is validated using the sst k-ω turbulence model with the previous published experimental results at the same conditions, and they are in good agreement with each other. The numerical results indicate the remarkable enhancement of the rotor performance at a tip speed ratio of 0 to 0.7 by using a flanged diffuser with a plate obstacle. The shrouded diffuser …