Article
Environmental Sciences
Sonia Z. Issaq, Shamil K. Talal, Aasim A. Azooz
Summary: A new model has been developed to determine the optimal tilt angle for PV panels and solar collectors based on yearly, seasonal, and monthly basis. The model estimates the diffusion component of solar radiation using Orgill and Holland's model, and the relationship between diffusion and direct components is derived from empirical data. The optimal tilt angle for each month, season, and year is determined by maximizing the total amount of diffused and direct radiation. The model is programmed in MATLAB and is consistent with experimental data and other published model predictions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Amir Aghamohammadi, M. Ebrahim Foulaadvand
Summary: In this study, we investigate the best orientation for a fixed flat plate solar collector using the clear sky model. Ground reflection is ignored due to its small magnitude compared to direct beam and sky diffusive components. Our analysis shows that the most effective azimuthal angle, regardless of latitude, is 0 (North-South direction). The optimal tilt angle depends on both the Day of Year and the collector's latitude and we calculate it for mid-altitude climate zones.
SCIENTIFIC REPORTS
(2023)
Article
Thermodynamics
Waqas Ahmed, Jamil Ahmed Sheikh, Salman Ahmad, Shahjadi Hisan Farjana, M. A. Parvez Mahmud
Summary: This paper explores the impact of accuracy of orientation angles on the potential of greenhouse gas mitigation in photovoltaic systems. It demonstrates that precise orientation can increase the output of PV systems and reduce greenhouse gas emissions. Adjusting the orientation angles of PV systems has the potential to avoid significant greenhouse gas emissions without additional costs.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Myeongchan Oh, Jin-Young Kim, Boyoung Kim, Chang-Yeol Yun, Chang Ki Kim, Yong-Heack Kang, Hyun-Goo Kim
Summary: This study introduces the concept of tolerance angle to analyze the optimal range of PV panel orientation for practical optimization. A simple calculation formula is derived for calculating the theoretical optimal orientation and tolerance angle, making the process more practical without complex calculations or considerable data. The results are expected to enhance the practicality of panel orientation optimization and improve actual PV panel installation.
Article
Green & Sustainable Science & Technology
Ali Saleh Aziz, Mohammad Faridun Naim Tajuddin, Mohd Rafi Adzman, Makbul A. M. Ramli
Summary: This study investigated the impact of temperature, tilt and azimuth angles, and ground reflectance on the performance of a solar energy system in Choman, Iraq. The results showed that facing PV panels to the south with a tilt angle of 40 or 45 degrees resulted in the most economical system. Increasing ground reflectance from 10% to 90% led to changes in the annual optimum tilt angle and PV required capacity.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Thermodynamics
Saboor Shaik, Pethurajan Vigneshwaran, Abin Roy, Karolos J. Kontoleon, Domenico Mazzeo, Erdem Cuce, C. Ahamed Saleel, Mamdooh Alwetaishi, Sher Afghan Khan, Ali Etem Gurel, Umit Agbulut
Summary: This study evaluated the performance of solar PV panels under different tilt angles and dust deposition. Bird droppings were found to have the greatest impact on efficiency, while coal dust had the least effect. The considered tilt angles had a minor influence on the overall performance of the PV panels.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Jiaxuan Jing, Yong Zhou, Lingyu Wang, Yanfeng Liu, Dengjia Wang
Summary: This study aims to fill the gaps in global solar radiation data by using limited data from 85 meteorological observation stations and routine meteorological data from 2001 stations. The spatial distribution of global solar radiation and diffuse solar radiation is obtained using the Inverse Distance Weighing model. The optimum tilt angle of photovoltaic systems is calculated using the Collares-Pereira and Rabl hourly solar radiation model and the solar radiation on sloped surfaces model. The results show the range of annual global solar radiation and diffuse solar radiation in China, as well as the optimal tilt angle and photovoltaic power generation potential.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Environmental Sciences
F. Abed, Q. H. Al-Salami
Summary: This study uses a mathematical model to determine total solar radiation and the best fixed tilt angle for photovoltaic panels in all provinces of Turkey, providing important reference for those looking to install solar panels in Turkey.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Moon Keun Kim, Khalid Osman Abdulkadir, Jiying Liu, Joon-Ho Choi, Huiqing Wen
Summary: This study introduces an advanced strategy of combining a reflector with PV panels on a building to improve electricity generation. By optimizing the shape and tilt angle of the reflector using polished aluminum material, the solar radiation gain and electricity output of the PV panels can be significantly increased.
Article
Engineering, Mechanical
Vineet Singh, Vinod Singh Yadav
Summary: In this research paper, the efficiency and temperature of solar panels with water cooling arrangements were optimized using experimental data and model equations. The best input parameters were determined as solar flux of 705 W/m², water inlet velocity of 0.7263 m/s, and atmospheric temperature of 32.87 degrees C. The optimized responses showed good agreement with predicted values and previous research.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Vineet Singh, Vinod Singh Yadav
Summary: This research optimized the input parameters of a solar pump based on experimental data to improve performance, finding the optimal tilt angle and surface azimuth angle to be 18.2291 degrees and 6.2568 degrees respectively.
IETE JOURNAL OF RESEARCH
(2022)
Review
Energy & Fuels
Aboubakr El Hammoumi, Smail Chtita, Saad Motahhir, Abdelaziz El Ghzizal
Summary: PV systems are becoming increasingly popular due to their availability, ease of implementation, and environmental friendliness. However, the high initial cost, low conversion efficiency, and intensive land use are major drawbacks. Manufacturers and researchers worldwide have made improvements at the materials and system levels to overcome these limitations and enhance performance. Techniques such as solar tracking and floating PV systems have been introduced to optimize power generation. This paper provides a comprehensive review of these technologies, their benefits, drawbacks, and relevant literature. It also gives a brief introduction to solar PV energy.
Article
Chemistry, Analytical
Henrik Zsiboracs, Gabor Pinter, Andras Vincze, Nora Hegedusne Baranyai
Summary: This paper introduces a new active sensor-tracking algorithm for photovoltaic systems, which aims to solve the issues of traditional solutions and has been tested and patented. Based on the concepts of periodic movement and almost horizontal positioning, this system extends system lifetime, enhances resistance to storm damages, and achieves sun tracking practically without decreasing power compared to the focal point position.
Article
Energy & Fuels
Raghed Melhem, Yomna Shaker
Summary: This article focuses on optimizing the tilt angle of solar panels in the GCC countries. By using a mathematical model and comparing it with the PVWatts calculator, the study calculates the optimal tilt angle based on latitude and longitude. The importance of choosing the right tilt angle for maximizing solar energy production is emphasized. The results show that changing the tilt angle 12 times a year can increase power output by 10.9%. The study highlights the importance of selecting the optimal tilt angle and provides valuable data for the GCC countries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Computer Science, Information Systems
Ridha Ben Mansour, Meer Abdul Mateen Khan, Fahad Abdulaziz Alsulaiman, Rached Ben Mansour
Summary: Estimation of solar radiation distribution is crucial for solar panels and/or collector systems. A study found anisotropic models gain more energy than isotropic models and proposed optimal tilt angles. Additionally, the ambient temperature was found to significantly impact the performance of the PV system.
Article
Multidisciplinary Sciences
Muhammad Amar, Naveed Akram, Ghulam Qadar Chaudhary, Salim Newaz Kazi, Manzoore Elahi M. Soudagar, Nabisab Mujawar Mubarak, Md Abul Kalam
Summary: The use of solar energy is a prominent strategy for addressing energy management challenges. Flat plate solar collectors, powered by nanofluids, are shown to have improved thermal efficiency compared to conventional heat transfer fluids. This research examines the effects of a novel green nanofluid on the performance of flat plate solar collectors.
SCIENTIFIC REPORTS
(2023)
Article
Green & Sustainable Science & Technology
Ahmed Sule, Zulkarnain Abdul Latiff, Mohd Azman Abas, Ibham Veza, Manzoore Elahi M. Soudagar, Irianto Harny, Vorathin Epin
Summary: This study investigates the impact of magnetite dispersed in butanol and added to blends of palm biodiesel and diesel on engine behavior for emissions and performance. Results show that the addition of magnetite and butanol reduces emissions and improves performance compared to ordinary blends, with higher dosage of magnetite yielding better results. The best sample was found to have 150 ppm magnetite in butanol added at 10% to B30, which showed higher brake thermal efficiency and lower fuel consumption than other samples. An artificial neural network model successfully predicted the performance and emissions of the dual fuel application.
Correction
Materials Science, Multidisciplinary
Venkatesh Chenrayan, Chandru Manivannan, Selladurai Velappan, Kiran Shahapurkar, Manzoore Elahi M. Soudagar, T. M. Yunus Khan, Ashraf Elfasakhany, Ravinder Kumar, Catalin I. Pruncu
DIAMOND AND RELATED MATERIALS
(2023)
Review
Energy & Fuels
Atul Bhattad, Vinay Atgur, Boggarapu Nageswar Rao, N. R. Banapurmath, T. M. Yunus Khan, Chandramouli Vadlamudi, Sanjay Krishnappa, A. M. Sajjan, R. Prasanna Shankara, N. H. Ayachit
Summary: Nano fluids, including hybrid nano-coolants, are extensively used in energy-related applications such as coolants, refrigerants, and fuel additives. This review article focuses on the hydrothermal behavior of heat exchangers (radiators for engine applications) with mono/hybrid nanofluids. It discusses the preparation and properties of hybrid nanofluids, innovative methodologies for higher heat transfer rates, and applications in engine radiators and fuel additives.
Article
Chemistry, Physical
Sadashiva Lalsangi, V. S. Yaliwal, N. R. Banapurmath, Manzoore Elahi M. Soudagar, Umit Agbulut, M. A. Kalam
Summary: This study aims to investigate the effects of fuel injection and hydrogen injection on the combustion and exhaust characteristics of a diesel engine. The results showed that multiple injections reduced thermal efficiency but decreased NOx emissions, and changed cylinder pressure and heat release rate compared to the traditional fuel injection method.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Mechanical
Venkatesh Chenrayan, Kiran Shahapurkar, Gangadhar M. M. Kanaginahal, Vineet Tirth, Abdulaziz H. H. Alghtani, Ali Algahtani, Fadi Althoey, Manzoore Elahi M. Soudagar, Chandru Manivannan, H. C. Ananda Murthy
Summary: The present study investigates the dynamic mechanical response of crump rubber filled epoxy composites. The effect of crump rubber content (0, 10, 20 and 30 vol.%) on the storage modulus, loss modulus and damping properties is assessed by experimental and theoretical approaches. The experimental storage modulus decreases with an increase in temperature for all the compositions while the experimental loss modulus of EC-30 registers higher values in comparison with other compositions. Damping capabilities also increase with higher filler content. The strengthening mechanism of the crump rubber composite is validated through the effectiveness of dispersion, degree of entanglement and activation energy. The increment in the degree of entanglement and activation energy are 84 and 154% higher than the neat epoxy, respectively, which implies the thermal stability of the composite. The results of theoretical modeling evaluated for the storage and loss modulus are in good agreement with the experimental results.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Materials Science, Composites
M. A. Umarfarooq, P. S. Shivakumar Gouda, N. R. Banapurmath, M. I. Kittur, Tabrej Khan, Bisma Parveez, Tamer A. Sebaey, Irfan Anjum Badruddin
Summary: Failure by delamination is a significant concern in laminated composites, as it leads to degradation of stiffness and potential structural failure. Knowledge of delamination resistance and influencing factors is crucial for material selection. This study investigates the effect of fiber hybridization and post-curing on the interlaminar fracture toughness of Glass/Carbon/Epoxy composites. The hybrid GCE laminates exhibit higher fracture toughness, attributed to the synergistic effect of Carbon and Glass fibers. Post-curing at 180 degrees C also improves fracture toughness.
POLYMER COMPOSITES
(2023)
Article
Construction & Building Technology
A. K. Roopa, A. M. Hunashyal, Arun Y. Patil, Abhishek Kamadollishettar, Bharatkumar Patil, Manzoore Elahi M. Soudagar, Kiran Shahapurkar, T. M. Yunus Khan, M. A. Kalam
Summary: There is a growing demand for cement nanocomposites in the 21st century due to their composition, strength, efficiency, and multiscale nature. The inclusion of carbon nanotubes in small quantities to the concrete mix can enhance the material's properties. Molecular dynamics simulations and continuum mechanics modeling are used to understand the behavior and properties of these composites.
ADVANCES IN CIVIL ENGINEERING
(2023)
Review
Energy & Fuels
M. M. Hasan, Shakhawat Hossain, M. Mofijur, Zobaidul Kabir, Irfan Anjum Badruddin, T. M. Yunus Khan, Esam Jassim
Summary: This review provides a comprehensive evaluation of an integrated solar energy system, including photovoltaic technologies, solar thermal systems, and energy storage solutions. It emphasizes the importance of solar energy as a renewable resource and its role in addressing global energy demand and mitigating climate change.
Article
Pharmacology & Pharmacy
Revati Dharampal Sagare, Fatima Sanjeri Dasankoppa, Hasanpasha N. Sholapur, N. R. Banapurmath, M. A. Umarfarooq
Summary: Burn injuries have a significant negative impact on individuals and healthcare system. Doped halloysite nanotubes (DHNTs) show potential as a nanocarrier for drug delivery and as a scaffold for faster wound healing. In this study, Ciprofloxacin hydrochloride (Cip HCl) loaded DHNTs coated poly vinyl alcohol pellets were used to fabricate 3D printed scaffolds for tissue engineering applications.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Rajadurai Murugesan, Srikanth Holalu Venkataramana, Siva Marimuthu, Praveena Bindiganavile Anand, Santhosh Nagaraja, J. Samson Isaac, R. Raja Sudharsan, T. M. Yunus Khan, Naif Almakayeel, Saiful Islam, Abdul Razak
Summary: This Review provides a comprehensive overview of research endeavors and achievements in the advancement of magnesium alloys, with a focus on aerospace, automotive, and biomedical applications. The pivotal role played by alloying constituents and PEO coatings in influencing microstructural attributes, mechanical potency, and resistance to corrosion is emphasized.
Article
Chemistry, Multidisciplinary
Navin Kumar, Shatrughan Soren, Akhileshwar Nirala, Naif Almakayeel, T. M. Yunus Khan, Mohammad Amir Khan
Summary: To overcome the limitations of standard ball-mill mixing processes, a unique solution-mixing process was developed to fabricate a uniformly dispersed carbon nanotube (CNT) reinforcement composite without damaging CNTs in matrix powder. The solution-mixing process was found to be simple and effective for achieving uniform distribution of CNTs without structural damage, as compared to the ball-milling process. Various methods, such as HRTEM, XRD, FESEM, Raman spectroscopy, and particle size analysis, were used to examine the structural and thermal properties of the composites.
Article
Chemistry, Multidisciplinary
Atul Bhattad, B. Nageswara Rao, Vinay Atgur, Nagaraj R. Banapurmath, Ashok M. Sajjan, Chandramouli Vadlamudi, Sanjay Krishnappa, T. M. Yunus Khan, Narasimha H. Ayachit
Summary: Extensive investigations were conducted to explore the thermal conductivity of mono-nanofluids, but the effect of concentration, diameter, and thermal properties of nanoparticles was often overlooked. This study proposed a model that considers the influence of these parameters on the thermal conductivity of hybrid nanofluids. Experimental results showed 2.4% and 2.1% enhancements in thermal conductivity for alumina (5:0) and titania (0:5) nanofluids, respectively, with a 0.1% particle volume concentration.
Article
Chemistry, Inorganic & Nuclear
Ratchagaraja Dhairiyasamy, Bahaa Saleh, Mohan Govindasamy, Ayman A. Aly, Asif Afzal, Yasser Abdelrhman
Summary: In this study, the effectiveness of using silver nanoparticles of different particle sizes to improve the heat transfer properties of a car radiator was investigated. It was found that smaller nanoparticles exhibited higher thermophysical properties. Correlations were developed to estimate the heat transfer properties and friction factor characteristics based on experimental Nusselt numbers and friction factor values.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)
Article
Engineering, Mechanical
Mohammed Kareemullah, Asif Afzal, K. Fazlur Rehman, K. C. Vishwanath, Hurmathulla Khan, Manzoore Elahi. M. Soudagar, Abdul Razak Kaladgi
Summary: The development of bio-lubricants is crucial in addressing environmental pollution. This article focuses on the preparation and evaluation of a bio-lubricant based on Neem oil. The study shows that Neem oil has the lowest viscosity, while blended lubricants have reduced viscosity compared to Neem oil.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)