Article
Multidisciplinary Sciences
Sergio Alcalde-Morales, Loreto Valenzuela, J. J. Serrano-Aguilera
Summary: This paper presents a thermal study of a cavity receiver designed for a Fresnel-type linear solar collector using a two-dimensional computational fluid dynamics (CFD) model implemented in ANSYS Fluent. The study extensively examines the thermal behavior of air inside the cavity for a Fresnel collector. The study reveals that radiative losses contribute to 81% of the total heat losses, with the outer tubes temperature being the main responsible for these losses.
Review
Thermodynamics
B. Kalidasan, Muhammed A. Hassan, A. K. Pandey, Subramaniyan Chinnasamy
Summary: Hollow cavity receivers are a new type of structure that overcomes the drawbacks of conventional evacuated tube receivers. They have advantages such as extended working temperature ranges, reduced thermal losses, and improved efficiency. Future research should focus on optimization and economic assessments to promote the diversified development of the solar receiver industry.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
A. E. Rungasamy, K. J. Craig, J. P. Meyer
Summary: This paper compares the optical and thermal performance of four different types of receivers, filling the gap in the literature on comparative studies. The study finds that the adapted TERC-type monotube receiver is the best candidate for an etendue-conserving compact linear Fresnel field.
Article
Energy & Fuels
Dimitrios N. Korres, Evangelos Bellos, Christos Tzivanidis
Summary: The objective of this study is to integrate a linear cavity receiver in an asymmetric compound parabolic collector. Two numerical models were developed to compare and optimize the designs, leading to a significant improvement in optical and thermal efficiency. The simulation results were validated using an analytical solution, showing a good agreement between the two methods.
Article
Energy & Fuels
Alaric Christian Montenon, Rowida Meligy
Summary: The modelling of Linear Fresnel Collectors is crucial for accurate yield prediction and designing appropriate controller commands. This study compares two alternative modelling methodologies based on experimental data from a solar system in Cyprus. The RealTrackEff model, an improved ISO9806 modelling, shows the least error in temperature prediction.
Article
Thermodynamics
Z. Ebrahimpour, Seyyed Ali Farshad, M. Sheikholeslami
Summary: This paper examines the exergy loss and hydrothermal analysis of the Linear Fresnel Reflector (LFR) unit using the finite volume method. Multiple mirrors are used to guide solar radiation into the parabolic-shaped receiver. The radiation model is utilized to simulate the radiation mode. The aim is to minimize heat losses from the receiver for optimal design. The outputs are summarized as contours of incident radiation, isotherm, and streamline.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Green & Sustainable Science & Technology
Hai Wang, Yanxin Hu, Jinqing Peng, Mengjie Song, Haoteng Li
Summary: The research aims to investigate and optimize the solar flux uniformity of a fixed linear-focus Fresnel lens solar concentrator using a triangle cavity receiver. The receiver parameters, such as solar declination angle and solar angle, have significant effects on the uniformity factor of the receiver. Adjusting receiver parameters, especially the vertical distance f, is the most economical and effective way to improve the uniformity of the solar concentrator.
Article
Optics
Zhengbo Zhu, Le Yang, Donglin Ma
Summary: In a concentrating photovoltaic (CPV) system, designing a freeform mirror array is proposed to achieve uniform illumination and high optical performance. Each mirror can generate a uniform illumination pattern on the CPV cell. Its effectiveness is demonstrated through design examples and analysis of factors affecting the optical performance.
Article
Green & Sustainable Science & Technology
Zongxian Duan, Wei An
Summary: The utilization of offset-axis mirrors in linear Fresnel micro-concentrators can significantly improve ground utilization ratio and efficiency, providing a more compact design compared to conventional central-axis mirrors. This approach shows a promising potential to enhance solar energy harvesting efficiency in building integrated PV/T applications.
Article
Energy & Fuels
A. Barbon, J. A. Fernandez-Rubiera, L. Martinez-Valledor, A. Perez-Fernandez, L. Bayon
Summary: The new open-loop solar tracking system for a small-scale linear Fresnel reflector is able to automatically position itself with an accuracy of +/- 0.006 degrees, providing 16.64% more energy and a 78.46% higher energy-to-area ratio compared to the classic tracking system.
Article
Energy & Fuels
Z. Ebrahimpour, M. Sheikholeslami
Summary: The study discusses a new design for domestic usage where mirrors are used as primary reflectors, with the implementation of trapezoidal tanks and the use of alumina-water as the operating fluid to enhance optical performance. The analysis also examines the impact of twisted tapes and different parameters on various scenarios, while reporting on the irreversibility and thermal behavior of each case.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Energy & Fuels
Roberto Grena, Michela Lanchi, Luca Turchetti, Tommaso Crescenzi
Summary: A linear receiver capable of reaching temperatures of up to 800 degrees Celsius is achieved by avoiding limiting factors in traditional receivers and utilizing thermal insulation through an elliptic reflecting cavity. This technology opens up possibilities for processes requiring temperatures above 700 degrees Celsius, such as thermochemical cycles for hydrogen production and solar fuel production.
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Article
Energy & Fuels
Muhammad Imran Khan, Faisal Asfand, Sami G. Al-Ghamdi
Summary: A global transition towards more sustainable production and consumption systems is underway, and the transition in energy systems is particularly noticeable. Concentrated solar power (CSP) technologies are seen as one of the most promising ways to generate electric power in the coming decades. Efforts have been made to reduce the cost of CSP technologies, and there is a need to have a comprehensive understanding of the research and technological advancements in this field.
Article
Thermodynamics
M. J. Montes, V. Stojceska, D. Reay, M. Ibarra
Summary: This study focuses on the application of linear Fresnel technology for solar heating in industrial processes, and proposes a new design for a pressurized gas microchannel receiver. By using two converging absorber panels with compact core fin structures, the flow of the fluid is optimized to improve heat transfer. A thermal resistance model is formulated to quantify fluid heating and thermal gradient along the panel length and thickness, and a thermo-exergy optimization is conducted based on specific characteristic parameters.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Mokhtar Ghodbane, Zafar Said, Arun Kumar Tiwari, L. Syam Sundar, Changhe Li, Boussad Boumeddane
Summary: The study conducted a numerical investigation of an industrial process in the El-Oued region of Algeria using a linear Fresnel reflector (LFR) coupled with a Therminol 66 oil storage tank. By utilizing different concentrations of MXene/silicone oil nanofluids, the study showed improvements in thermal conductivity and thermal efficiency, cost reduction, and reduction in greenhouse gas emissions.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Engineering, Mechanical
Mohammad Hemmat Esfe, Davood Toghraie, Fatemeh Amoozadkhalili
Summary: This study investigates the viscosity (mu nf) of MWCNT-TiO2(10:90)/SAE40 nanofluid (NF) using an artificial neural network (ANN). The results show that ANN can accurately estimate the viscosity and is more time and cost-effective compared to repetitive experiments.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Chemistry, Physical
Zhihui Liu, Kejun Zhu, Azher M. Abed, Davood Toghraie
Summary: By simulating the reactions, the performance of catalysts in catalytic combustion can be improved, reducing the release of harmful gases. In this study, the catalytic combustion process of air-methane was simulated in a helical microchannel using Palladium (Pd) as the catalyst. The results showed that adding Pd catalyst improved the thermal performance of the simulated structure and increased the combustion efficiency. Increasing the initial pressure reduced the heat flux and thermal conductivity.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Multidisciplinary
Mohammad Hemmat Esfe, Davood Toghraie
Summary: This study simulates the effects of wind velocity on the performance of passive single-slope solar stills in Khuzestan Province, Iran. The results indicate that a rise in the wind velocity decreases the freshwater production rate, and Ramhormoz, Dehdez, and Izeh are found to be optimal regions for deploying solar stills based on wind velocity.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Biology
Huanlei Wang, Azher M. Abed, Anahita Piranfar, Ghassan Fadhil Smaisim, Salema K. Hadrawi, Hussein Zekri, Davood Toghraie, Maboud Hekmatifar, As'ad Alizadeh
Summary: The impact of porosity and the number of cancer cells on the atomic behavior of cancer cells during hematogenous spread was investigated using molecular dynamics simulation. It was found that increasing porosity and increasing number of cancer cells led to changes in cancer cell structure and affected their stability. The gyration radius, interaction energy, and interaction force of the samples increased with increasing porosity, while decreased with increasing number of cancer cells. Decreasing the gyration radius can improve the strength and stability of the simulated samples.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Engineering, Multidisciplinary
Navid Habibollahi, Ali Abdollahi, S. Mohammad Sajadi, Davood Toghraie, Sobhan Emami, Mohamad Shahgholi, Mustafa Inc
Summary: This study used MD simulations to investigate the thermal and combustion behavior of coated aluminum hydride nanoparticles in an oxygenated medium. The system's behavior was studied in the presence of two coatings, ethanol and nickel atomic, by analyzing temperature changes, potential energy changes, penetrated oxygen, heat flux changes, and radial distribution functions. The results showed that the combustion process occurred faster with the ethanol coating than the nickel coating, as evidenced by higher heat flux and oxygen penetration. Increasing the percentage of ethanol coating to 12% further enhanced the combustion process and increased the number of infiltrated oxygen atoms.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Engineering, Chemical
Meng Xia Wang, Behnam Almasi, Zainab Ali Bu Sinnah, Hasan Sh. Majdi, Farag M. A. Altalbawy, Davood Toghraie, Ibrahem Waleed, Rahman S. Zabibah, Usama S. Altimari, Yun Xiang Zhang
Summary: This study investigates the thermal conductivities of Ag-CuO-tungsten oxide/water ternary hybrid nanofluids with different mixing ratios, as well as other mono and hybrid nanofluids. The results show that increasing temperature and volume fraction of nanoparticles both increase the thermal conductivity. The Ag/water nanofluids with a volume fraction of 0.4% and temperature of 50℃ exhibit the highest thermal conductivity. A mathematical model is proposed to estimate the thermal conductivity of Ag-CuO-tungsten oxide/water ternary hybrid nanofluids.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Chemical
Ashkan Ghafouri, Davood Toghraie
Summary: This study evaluates the thermal conductivity of a new mixture of hybrid nanofluids composed of SiC and ZnO nanoparticles in the base fluid of ethylene glycol. The results show that the thermal conductivity enhancement is maximized at the highest temperature and volume fraction, as well as the smallest nanoparticle size. A new multivariate correlation is proposed, which accurately predicts the thermal conductivity based on temperature, nanoparticle size, and volume fraction. The importance of the parameters is found to be in the order of volume fraction > temperature > nanoparticle size.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Biology
Hao Peng, Leping Dang, Davood Toghraie
Summary: The aggregation of 7S globulin protein in soybean seeds plays an important role in the food industry. Molecular Dynamics simulations were used to predict the thermal properties and behavior of this protein under different conditions. The results showed that pressure and temperature have a significant impact on the thermal behavior of the protein. These findings can contribute to the development of new methods for food industry purposes.
JOURNAL OF THERMAL BIOLOGY
(2023)
Article
Mechanics
Samaneh Soleymani, Parham Memarzadeh, Davood Toghraie
Summary: The present study investigates the sound transmission loss through the air-filled rectangular double-walled cross-ply fiber metal laminated (FML) nanoplates under different boundary conditions using nonlocal strain gradient theory and third-order shear deformation theory. The accuracy and precision of the developed solution are evaluated by comparing with existing data. The effects of various parameters on the sound transmission loss are examined, including boundary conditions, nonlocal and strain gradient parameters, lay-ups, incident angles, and acoustic cavity depth.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Review
Materials Science, Multidisciplinary
Vahid Monfared, Hamid Reza Bakhsheshi-Rad, Mahmood Razzaghi, D. Toghraie, Maboud Hekmatifar, Filippo Berto
Summary: This article provides a brief review of the creep behavior of nanocomposites-based materials in recent years. Investigating the time-dependent plastic deformation of nanocomposites is crucial in modern sciences. The study of creep is important for applications under high temperature and high stresses, such as turbine blades, spaceships, shuttles, and nozzle guide vanes. Additionally, the article presents a detailed review of the creep behavior of metal-based nanocomposites, particularly magnesium-based ones, and suggests the use of nanoparticle encapsulation to improve their creep resistance.
METALS AND MATERIALS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Vahid Monfared, Seeram Ramakrishna, Navid Nasajpour-Esfahani, Davood Toghraie, Maboud Hekmatifar, Sadegh Rahmati
Summary: This article reviews and studies several significant and applied results in 3D printing and additive manufacturing (AM) science and technology, which were published in 2020. The main purpose is to collect new and applied research results for researchers. AM is a highly discussed topic and subject in scientific and industrial societies, and it is considered as a new vision of the unknown modern world. The future of AM materials is undergoing fundamental changes, making it a continuous new industrial revolution in the digital world. Additionally, AM and 3D printing are moving towards the fifth industrial revolution. Studying AM is vital for generating future developments that benefit human beings and life. This article presents a brief overview of the updated and applied methods and results published in 2020.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Mohammad Hemmat Esfe, Soheyl Alidust, Mohammad Hosseini, Davood Toghraie, Vahid Vaisi, Hossein Hatami
Summary: Qom province in Iran suffers from drought and water shortage. Recent efforts have improved access to safe drinking water for people in both cities and villages in the province. This research focuses on the performance evaluation of a double-slope solar still with a semi-circular basin in Qom province, specifically investigating the effects of different glass angles on freshwater production rate. The study found that an increase in slope angle leads to higher production rate but lower fresh water production per unit volume.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Automation & Control Systems
Xiaofei Cheng, Sara Hakem Al-Khafaji, Mohammad Hashemian, Mariem Ahmed, S. Ali Eftekhari, Ali Ihsan Alanssari, Nabaa Muhammad Diaa, Manal Morad Karim, Davood Toghraie, Ahmed Hussien Alawadi
Summary: In this study, the natural frequency of a clamped-clamped functionally graded porous (FGP) nanobeam is predicted by considering different material distribution patterns in the thickness direction. The governing equations of the nanobeam are derived based on third-order shear deformation beam theory, nonlocal strain gradient theory (NSGT), and surface effects. Artificial neural network (ANN) is employed to analyze the impact of various parameters on the fundamental frequency of FGP nanobeam. The results show that factors such as temperature gradient, nonlocal parameter, and material length scale have significant influence on the natural frequency.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Engineering, Mechanical
Davood Toghraie, Seyed Naser Hosseini Tamrabad, Soheyl Alidoust, Hossein Hatami
Summary: The performance of hybrid nanofluid (HNF) based on SAE40 oil was investigated using response surface methodology (RSM) in this study. Various statistical analyses were conducted to evaluate different modeling functions, and the quartic model was found to have the highest accuracy in presenting the properties of HNF. The optimal viscosity mode of HNF for lubrication in a cold environment was suggested as 212.360 MPa.sec.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Acoustics
Zhiming Liu, Ashkan Bahadoran, As'ad Alizadeh, Nafiseh Emami, Tariq J. Al-Musaw, Ahmed Hussien Radie Alawadi, Aseel M. Aljeboree, Mahmoud Shamsborhan, Iman Najafipour, Seyed Erfan Mousavi, Milad Mosallanezhad, Davood Toghraie
Summary: Water pollution management, reduction, and elimination are crucial challenges in current times that put the lives of millions at risk. The increased use of antibiotics, like azithromycin, due to the spread of the coronavirus in December 2019, has led to their presence in surface waters. A ZIF-8/zeolite composite was synthesized using the sonochemical method and its efficacy in adsorption was studied through various parameters. The composite showed promising adsorption capacity, spontaneous and endothermic adsorption process, and successful removal of the drug in multiple cycles.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.
