Article
Thermodynamics
Shen Liang, Hongfei Zheng, Shuli Liu, Xinglong Ma
Summary: This paper introduces a solar concentrating photovoltaic-thermal module designed for building louvers, which combines a specially designed concentrating blade with a PV-T module to provide electricity and heat in building vertical spaces. The concentrating blade operates under solar incident angles of 0-90 degrees, with a high-efficiency photovoltaic-thermal working range of 20-70 degrees. Optical simulations show that the maximum geometrical concentration ratio is 2.96 at an incident angle of 20 degrees, and remains above 2 over a wide range of incident angles between 12.5 degrees and 52.5 degrees. Experiment results demonstrate that the CPV-T module can achieve an overall efficiency above 55% for nearly 5 hours without tracking during all-day experiments.
Article
Green & Sustainable Science & Technology
Shen Liang, Hongfei Zheng, Xuanlin Wang, Xinglong Ma, Zhiyong Zhao
Summary: This paper proposes a solar louver for harvesting solar energy in vertical building space. The solar louver consists of concentrating photovoltaic-thermal (CPV-T) modules and allows users to adjust interior daylight. Experimental results show that the solar louver maintains electrical efficiency above 4.18% and thermal collection efficiency above 55.6% within a specific range of light incident angles, making it a promising solution for building applications.
Article
Thermodynamics
Mehmet Ali Yildirim, Artur Cebula, Maciej Sulowicz
Summary: This paper proposes an innovative thermal collector that couples the thermal behavior of photovoltaic modules and a designed cooling system to enhance the thermal and electrical conversion efficiencies of water-based photovoltaic-thermal systems. The results show that the designed cooling system achieves better performance and significantly improves the thermal and electrical conversion efficiency compared to existing solutions in the literature.
Article
Thermodynamics
Yishuang Ji, Song Lv, Zuoqin Qian, Yitong Ji, Juwen Ren, Kaiming Liang, Shulong Wang
Summary: This study comparatively studied CPV systems with air cooling, water cooling, and heat pipe cooling methods and conducted outdoor experiments. The results showed that the CPV cell with heat pipe cooling method had the highest output power. Additionally, a thermal-electrical coupling model was established to provide guidance for the design and application of practical CPV cooling systems.
Article
Thermodynamics
Navid Aslfattahi, R. Saidur, A. Arifutzzaman, A. S. Abdelrazik, L. Samylingam, Mohd Faizul Mohd Sabri, Nor Azwadi Che Sidik
Summary: In this research, a new hybrid graphene-silver nanomaterial was used with paraffin wax as a phase change material (PCM) to improve its thermo-physical properties. The thermal and electrical energy efficiencies of the synthesized nanocomposite (PCM/graphene-silver) were investigated in solar thermal collector systems. The results showed that the hybrid nanocomposite exhibited improved specific heat capacity, thermal conductivity, and energy efficiency compared to the pure PCM.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Green & Sustainable Science & Technology
Yunjie Wang, Huihan Yang, Haifei Chen, Bendong Yu, Haohua Zhang, Rui Zou, Shaoyang Ren
Summary: This paper provides a comprehensive review of different photovoltaic systems and corresponding cooling technologies. It investigates the distinctions, applicability, development trends, and future technologies of both passive and active cooling methods. The paper highlights the importance of appropriate cooling technologies in maintaining optimal performance for concentrated photovoltaic systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
Giovanni Barone, Aggelos Zacharopoulos, Annamaria Buonomano, Cesare Forzano, Giovanni Francesco Giuzio, Jayanta Mondol, Adolfo Palombo, Adrian Pugsley, Mervyn Smyth
Summary: This paper introduces an innovative Concentrating Photovoltaic Glazing system (CoPVG) that utilizes Total Internal Reflection to achieve a seasonal effect of increasing light entering the building in winter and higher electricity production in summer. By developing a simulation tool to study the performance of the device and implementing it in DETECt for building energy performance simulation, the potential for energy savings ranging from 30 to 60% is demonstrated.
Article
Green & Sustainable Science & Technology
Zhenghao Liu, Heng Zhang, Chao Cheng, Jiguang Huang
Summary: Membrane distillation seawater desalination technology integrated with low-concentrating photovoltaic/thermal modules shows high thermal and electrical efficiency in the experiment, with a higher water yield, providing guidance for future research on membrane distillation.
Article
Thermodynamics
Ju Huang, Xinyue Han, Azhar Abbas Khosa
Summary: This study introduces an innovative approach by incorporating blended nanofluid filters into a concentrating photovoltaic/thermal system to efficiently convert solar energy into hydrogen. The results demonstrate the significant promise of blended nanofluid in facilitating a solar-driven hydrogen production system across the complete spectrum, offering a feasible pathway toward achieving comprehensive solar-driven hydrogen production.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Environmental Sciences
Sumit Tiwari, Muthukarupan Swaminathan, Santhosh S. Eashwar, Harender, Desh Bandhu Singh
Summary: This review paper discusses the importance of reducing solar cell temperature for the efficiency of PV systems and explores different cooling techniques. The study finds that PVT systems using nanofluids as a cooling medium have the best overall efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Environmental Sciences
Susant Kumar Sahu, Arjun Singh Kopalakrishnaswami, Sendhil Kumar Natarajan
Summary: Solar energy is a promising form of energy that can meet the world's energy needs. The solar parabolic dish collector system has gained attention for its higher thermal energy conversion efficiency and unique advantages. This article reviews the progress of solar concentrating techniques using solar parabolic dish collectors and discusses their applications in heat and electrical power production.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Ahmed Mohamed Soliman
Summary: A numerical analysis is conducted on a photovoltaic-thermal (PVT) hybrid system with different cooling configurations. The study examines the influence of cooling patterns, operating conditions, and weather conditions on the system performance, as well as evaluates its energy and exergy efficiency. The results show that the fifth cooling pattern performs the best, while the second pattern performs the worst.
Article
Thermodynamics
Yanfeng Liu, Yingya Chen, Dengjia Wang, Jingrui Liu, Xi Luo, Yingying Wang, Huaican Liu, Jiaping Liu
Summary: The study investigates the structural layout and parameter optimization of a PV cooling system which effectively reduces the surface temperature, increases power generation efficiency, and achieves maximum conversion and exergy efficiencies through exponential relationships with mass flow rate. Economic calculations show that the PV cooling system can increase power generation by 7%-15% in typical cities in China.
Article
Thermodynamics
Mohamed Lebbi, Khaled Touafek, Ahmed Benchatti, Lyes Boutina, Abdelkrim Khelifa, Mohamed Taher Baissi, Samir Hassani
Summary: The study aimed to address the issues of temperature rise and dust accumulation on solar panels in desert areas, by utilizing a new hybrid system PV/T Bi-fluid to achieve both cooling and self-cleaning simultaneously. Experimental results demonstrated the effectiveness of this system in improving electrical performance.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Sakhr M. Sultan, C. P. Tso, E. M. N. Ervina, M. Z. Abdullah
Summary: This paper proposes new methods for assessing the performance of a photovoltaic cooler, which can significantly reduce the assessment cost and are time-efficient.
Article
Chemistry, Physical
Minghong Jian, Sa'd Hamasha, Ali Alahmer, Mohammad Hamasha, Xin Wei, Mohamed El Amine Belhadi, Khozima Hamasha
Summary: This study investigates the influence of aging and varying cycles on the fatigue of SnAgCu-Bi (SAC-Bi) solder joints. The results show that aging reduces the fatigue life of the solder joints, especially SAC305. A new fatigue model is proposed that provides a more accurate estimation of damage accumulation by assessing inelastic work amplification.
Article
Energy & Fuels
Hegazy Rezk, Abdul Ghani Olabi, Rania M. M. Ghoniem, Mohammad Ali Abdelkareem
Summary: The amount of energy harvested by a thermoelectric generator (TEG) depends on the temperature difference between its hot and cold sides. To ensure efficient operation of the TEG under varying conditions, a reliable maximum power point tracker (MPPT) is crucial. Fractional control with non-integer parameters allows for more precise and flexible control of the system. This paper proposes an optimized fractional PID-based MPPT that addresses dynamic response and oscillation issues, outperforming other optimization algorithms and tracking methods.
Review
Engineering, Chemical
Ala'a K. Al-Bawwat, Antonio Cano, Mohamed R. Gomaa, Francisco Jurado
Summary: Jordan's energy situation is heavily dependent on imports to meet its increasing energy demands. Renewable energy, particularly bioenergy, has the potential to be a crucial alternative energy source in Jordan. Nanotechnology can improve the properties and processes of biofuels, making it a viable option for bioenergy production in the country.
Article
Engineering, Marine
Hegazy Rezk, A. G. Olabi, Mohammad Ali Abdelkareem, Ali Alahmer, Enas Taha Sayed
Summary: The use of green hydrogen as a fuel source in the marine industry has the potential to reduce its carbon footprint. Developing a sustainable method for producing green hydrogen is important, and water electrolysis is the best method for renewable energy production. By using ANFIS modeling and POA optimization, the hydrogen production can be increased.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Hegazy Rezk, Tabbi Wilberforce, A. G. Olabi, Rania M. Ghoniem, Enas Taha Sayed, Mohammad Ali Abdelkareem
Summary: The parameter identification of a Proton Exchange Membrane Fuel Cell (PEMFC) involves using optimization algorithms to determine unknown variables that are crucial for accurately predicting the fuel cell's performance. This study compared five optimization methods and found that the Bald Eagle Search (BES) algorithm achieved the lowest sum square error (SSE) of 0.035102, indicating accurate performance prediction. BES was identified as suitable for developing digital twins and control systems in the automotive industry. Additionally, BES demonstrated faster convergence compared to other algorithms. This research highlights the use of metaheuristic algorithms in fuel cell performance prediction for digital twin development in the automotive sector.
Article
Green & Sustainable Science & Technology
Hegazy Rezk, Mokhtar Aly, Rania M. Ghoniem
Summary: This study improves the design of fuzzy logic control (FLC) systems for proton exchange membrane fuel cells (PEMFCs) maximum power point tracking (MPPT) by using a gradient-based optimizer (GBO). The results of the proposed GBO-FLC method outperform other computational methods in terms of mean, median, variance, and standard deviation. Comparison between regular FLC and upgraded FLC shows that the suggested FLC-based GBO design provides a dependable MPPT solution in PEMFCs.
Article
Green & Sustainable Science & Technology
Rania M. Ghoniem, Ali Alahmer, Hegazy Rezk, Samer As'ad
Summary: This study examines the techno-economic viability and sensitivity of utilizing solar photovoltaic/polymer electrolyte membrane (PEM) fuel cells (FCs) to meet specific power demands in NEOM, Saudi Arabia. The outcomes show that the 30 kW PEMFC and the 201 kW Trina Solar TSM-430NEG9R.28 are the most favorable choices. The findings emphasize the criticality of choosing optimal system configurations to attain favorable economic outcomes.
Article
Construction & Building Technology
Mujahed Al-Dhaifallah, Zuhair Alaas, Alireza Rezvani, Binh Nguyen Le, Samaneh Samad
Summary: This research aims to optimize the functioning of micro-grids by providing a multi-objective energy management system that incorporates the availability of renewable energy sources and allows for demand response activities. The study develops schedules for demand response operations and employs various power sources to establish a standard microgrid. A modified manta ray foraging optimization algorithm is used to solve the complex problem. The results show that considering demand response leads to a reduction in the power capacity of wind turbines and PV systems.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Engineering, Aerospace
Mujahed Al-Dhaifallah, Fahad M. Al-Qahtani, Sami Elferik, Abdul-Wahid A. Saif
Summary: This study introduces a new method of controlling the slung load system of quadrotors using the fractional-order sliding mode control (FOSMC) method to enhance performance. The FOSMC method proves its robustness in stabilizing and tracking quadrotors with minimized swinging of the attached load, even in the presence of external disturbances. The results of this study can contribute to the development of more efficient and accurate load transportation drones.
Article
Energy & Fuels
Ahmed Ali A. Mohamed, Stephanie Lojano, Carlos Maldonado, Tamer Ibrahim, Hebatallah E. Mostafa, Razib Sarkar, Tafadar Soujad, Hegazy Rezk, Mujahed Aldhaifallah
Summary: The number of Electric Vehicles (EVs) is expected to rise dramatically, which will increase the demand for electricity due to EV charging. The question is whether the current distribution systems can handle this increased demand. The hypothesis is that coordinated charging is necessary for wide scale deployment of EV chargers.
Article
Computer Science, Information Systems
Abdul-Wahid A. Saif, Khaled Bin Gaufan, Sami El-Ferik, Mujahed Al-Dhaifallah
Summary: This research proposes the implementation of two advanced controllers with integer and fractional order quadrotor systems to enhance control performance, robustness, and accuracy. MATLAB simulation studies verify the effectiveness of the approach, showing that the fractional order quadrotor system outperforms the traditional integer order system. The study highlights the potential of fractional order modeling and control techniques in improving quadrotor system performance, with implications for modern control engineering.
Article
Computer Science, Information Systems
Sami El-Ferik, Muhammad Maaruf, Fouad M. Al-Sunni, Abdulwahid Abdulaziz Saif, Mujahed Mohammad Al Dhaifallah
Summary: In this research, a reinforcement learning-based control strategy is investigated for second-order continuous-time multi-agent systems (MASs) under actuator cyberattacks during affine formation maneuvers. To approximate the ideal solution for systems vulnerable to cyberattacks during time-varying maneuvers, a critical neural network is utilized. The actor-critic neural networks are employed to calculate unknown dynamics and severity of attacks on the MAS actuators. The stability of the closed-loop system is emphasized using a Lyapunov candidate function. The suggested strategy is supported by a numerical simulation.
Article
Energy & Fuels
Hussein Alahmer, Ali Alahmer, Razan Alkhazaleh, Mohammad Alrbai, Malik I. Alamayreh
Summary: Water-in-diesel emulsion fuel is a potential alternative fuel that can lower NOx emissions and improve combustion efficiency. This study examines the impact of the emulsion fuel on engine performance and NOx emissions using a compression ignition engine. The results show that using emulsified gasoline enhances engine performance and reduces emissions. The application of optimizers helps determine the optimal water addition and engine speed, further improving the engine's performance and reducing emissions.
Article
Thermodynamics
Basil Mahdi Al-Srayyih, Ahmed Al-Manea, Khalid Saleh, Azher M. Abed, Qusay Rasheed Al-Amir, Hameed K. Hamzah, Farooq H. Ali, Raed Al-Rbaihat, Ali Alahmer
Summary: This study investigates the effects of introducing oscillating elliptical obstacles on natural convection and entropy generation in a quarter-circle cavity filled with a water-based hybrid nanofluid. The results show that an increase in the length of the hot source leads to a decrease in heat transfer rate, and increasing the Rayleigh number significantly increases total entropy generation and heat transfer irreversibility. The amplitude has a greater impact on the average Nusselt number compared to the frequency, and the direction of oscillation of the elliptical obstacles has different effects on the average Nusselt number at different Rayleigh numbers.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Agricultural Engineering
Sameer Al-Dahidi, Mohammad Alrbai, Loiy Al-Ghussain, Ali Alahmer, Hassan S. Hayajneh
Summary: This study presents a comprehensive performance and forecasting analysis of the As-Samra wastewater treatment plant in Jordan, providing valuable perspectives for enhancing operational efficiency, refining production planning, and improving environmental impact.
BIORESOURCE TECHNOLOGY
(2024)
