Article
Thermodynamics
S. N. M. Zainon, W. H. Azmi
Summary: The study found that the green Bio-glycol based TiO2-SiO2 nanofluids exhibit good stability and enhanced thermal conductivity. However, there is minimal change in dynamic viscosity with temperature.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Green & Sustainable Science & Technology
Lei Shi, Shuai Zhang, Adeel Arshad, Yanwei Hu, Yurong He, Yuying Yan
Summary: This study utilizes a neural network model to predict the thermophysical properties of magnetic nanofluids, demonstrating its accuracy compared to previous theoretical models and providing a theoretical basis for heat transfer.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Thermodynamics
Rashmi Walvekar, Danial Aminin Zairin, Mohammad Khalid, Priyanka Jagadish, Nabisab Mujawar Mubarak, T. C. S. M. Gupta
Summary: This study investigates the stability, thermo-physical properties, and electrical properties of pure transformer oil, palm oil methyl ester, and blend oils suspended with SiO2-graphene nanoparticles. The optimized nanofluid blend showed improved thermal conductivity and lower viscosity for faster heat dissipation and fluid flow. Pure transformer oil exhibited higher breakdown voltage and resistivity compared to the optimized sample with hybrid nanoparticles.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Materials Science, Multidisciplinary
Alexandru Vardaru, Gabriela Huminic, Angel Huminic, Claudiu Fleaca, Florian Dumitrache, Ion Morjan
Summary: The main goal of this paper is to develop a new solar hybrid nanofluid with improved thermo-physical properties for solar applications in order to enhance solar efficiency. Reduced graphene oxide (rGO) was synthesized using the modified Hummers' method, while silver nanoparticles (Ag NPs) were synthesized through liquid-phase reduction. Characterization of the Ag-rGO/water hybrid nanofluid was done using scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Stability of the prepared hybrid nanofluid was investigated through measurements of Zeta potential and PI index. The results showed enhanced thermal conductivity and viscosity, as well as a slight increase in density, with increasing concentration of Ag-rGO nanofluid.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Thermodynamics
Jinghua Tang, Cong Qi, Zi Ding, Masoud Afrand, Yuying Yan
Summary: The study focuses on the development of a bionic surface based on the wing structure of the dragon louse for thermal management in electronic components, as well as the behavior of Fe3O4-water nanofluids under magnetic field. Various factors affecting heat transfer, such as nanofluid concentration, Reynolds number, magnetic field angle, and intensity, were considered. Results show that the bionic surface has a significant drag reduction effect and the magnetic field has a notable influence on CPU cooling.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Review
Chemistry, Analytical
S. N. M. Zainon, W. H. Azmi
Summary: This paper discusses the importance of stability of nanofluids and various methods to improve it, emphasizing the impact of factors such as nanoparticle type, concentration, temperature, etc., on the thermo-physical properties of nanofluids.
Article
Materials Science, Multidisciplinary
Robar Arafat, Christian Koehn, Annelise Jean-Fulcrand, Tim Abraham, Georg Garnweitner, Christoph Herrmann
Summary: This study investigated the usability of Al2O3, ZrO2, and TiO2 nanoparticles in water-glycerine based nanofluids as MQL-cutting fluids in tribological tests. The physical-chemical properties and behavior of the nanofluids were assessed, and the influence of these properties on wear and particle deposition on steel workpieces was evaluated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Thermodynamics
Sayantan Mukherjee, Sayan Jana, Purna Chandra Mishra, Paritosh Chaudhuri, Shanta Chakrabarty
Summary: In this experimental study, convective flow boiling heat transfer using Al2O3/water nanofluid in a horizontal tube was analyzed. The nanofluids exhibited good stability and enhanced thermophysical properties, resulting in a significant increase in heat transfer coefficient, although it also led to an increase in pressure drop. Performance evaluation criteria showed a 94% improvement in overall thermal performance compared to pure water.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Thermodynamics
Evans K. Quaye, Jianfeng Pan, Qingbo Lu, Yi Zhang, Yu Wang
Summary: The study investigated the optimization of an MTPV system by analyzing different porous media (PM) geometries. Results showed that the spherical PM structure had the highest methane conversion rate and wall temperature. The best operating conditions were found to be a diameter ratio of 0.7, porosity of 0.5, equivalence ratio of 0.8, and wall thermal conductivity of 22.99 W/(m center dot K).
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Energy & Fuels
Kadir Gelis, Ali Naci Celik, Kadir Ozbek, Omer Ozyurt
Summary: This study investigated the impact of nanofluids on the electrical and thermal efficiency of photovoltaic thermal systems (PVT) using the Response Surface Methodology (RSM). The experimental results showed that the flow rate, nanofluid volumetric concentration, and solar radiation were the most influential parameters affecting the thermal and electrical efficiency. The mathematical models developed based on the experimental outcomes successfully verified the performance of the PVT system in terms of electrical and thermal efficiencies.
Article
Thermodynamics
Duygu Yilmaz Aydin, Metin Guru
Summary: Nanofluids with better thermo-physical properties compared to conventional fluids are widely used in various systems. Studies on preparation techniques, stability improvement, and thermal performance evaluation are increasing. The use of nanofluids shows potential in enhancing heat transfer properties in thermal systems.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Multidisciplinary Sciences
Adela Svobodova-Sedlackova, Alejandro Calderon, Camila Barreneche, Pablo Gamallo, A. Ines Fernandez
Summary: This study analyzed nanofluids with different concentrations of SiO2 NPs using techniques such as infrared thermography, infrared spectroscopy, and differential scanning calorimetry to understand the mechanism behind the increase in heat capacity. Results showed that the clustering of NPs and ionic exchange processes contribute to the anomalous behavior of the heat capacity in nanofluids.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
R. N. Prithiviraajan, S. Somasundharam, K. S. Reddy
Summary: A novel experimental methodology is proposed for estimating the unknown thermal conductivity and specific heat capacity of engineering materials. The method involves radiative heating of the test sample and measuring its temperature response at two different locations. Numerical estimations and real-time temperature measurements suggest that the time-dependent heat flux boundary condition is more suitable for estimating the properties of materials with higher thermal conductivity.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Construction & Building Technology
Abbas Mukhtar Adnan, Xue Luo, Chaofeng Lu, Jinchang Wang, Zhiyi Huang
Summary: This study investigated the impact of graphene oxide (GO) on the physical properties and performance of asphalt binders. The results showed that the addition of GO significantly improved the physical properties of the asphalt, and the preparation process had a significant influence on the tensile strength, stability, and plastic flow of the asphalt mixture.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Materials Science, Composites
Abd Baghad, Khalil El Mabrouk
Summary: Process parameters of the autoclave cure method play a critical role in controlling the microstructure and physical and mechanical properties of composite laminates. Temperature significantly affects the degree of cure, while pressure has the most significant linear effect on density. Vacuum and pressure, temperature and pressure, and pressure alone also affect fiber volume fraction. Only pressure and vacuum have a significant effect on void content. The predicted responses using quadratic models are in good agreement with experimental values.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2023)
Review
Food Science & Technology
Ravichandra Hospet, Devarajan Thangadurai, Natalia Cruz-Martins, Jeyabalan Sangeetha, Konerira Aiyappa Anu Appaiah, Zaira Zaman Chowdhury, Namita Bedi, Kasem Soytong, Abdel Rahman Mohammad Al Tawahaj, Shoukat Jabeen, Misbah Mubeen Tallur
Summary: Strain improvement technology plays a crucial role in enhancing the quality of industrial strains. The genome shuffling technique, which involves inducing mutation and recursive protoplast fusion, ensures specific phenotype improvement and does not require gene sequence data.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Multidisciplinary Sciences
S. N. A. Ghani, Hooman Yarmand, N. F. M. Noor
Summary: This study focuses on the enhancement of heat flux caused by the use of different graphene-based nanoparticles in water-based fluids. Through numerical simulations and analysis, it is found that graphenes-water has the highest heat flux performance, while graphene oxides-water has the lowest heat flux performance. This research is of significance for applications involving heat conduction and fluid dynamics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES
(2023)
Article
Thermodynamics
Mingwang Zhan, Ibrahim B. Mansir, Pradeep Kumar Singh, Husam Rajab, Azher M. Abed, Mahidzal Dahari, Samia Nasr, Ilyas Khan, Sayed M. Eldin, Dianjie Sui
Summary: The feasibility of integrating bi-evaporator technology and a single-flash geothermal power plant is assessed in this study. A novel combined cooling and power (CCP) production cycle is designed using organic Rankin cycle and modified bi-evaporator refrigeration cycle. The use of a zeotropic mixture (Pentane/Isobutane) in the CCP is another difference from previous research. The proposed system is analyzed from energy, exergy, specific exergy costing, and net present value perspectives, and an advanced triple-objective optimization is conducted.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Hao-Feng Lin, Ibrahim B. Mansir, Hawzhen Fateh M. Ameen, A. Cherif, Abdulkareem Abdulwahab, Mahidzal Dahari, Haitao Lin, Ayman A. Aly, Samia Nasr
Summary: There is a need to develop novel clean systems for environmental and energy solutions. A novel tri-generation system for power, cooling and freshwater was developed using emergy analysis for evaluating economic and environmental aspects. The system performance was studied based on gasification temperature, combustion temperature and natural gas contribution. Various indicators were considered, including environmental loading ratio, Emergy sustainability index, Emergy investment ratio, Renewability scale, Emergy yield ratio, and energy efficiency. The system performance was optimized using response surface methodology. The results showed that increasing natural gas contribution improved system energy efficiency. The optimum conditions were found to be natural gas contribution of 1, gasification temperature of 1000 degrees C, and combustion temperature of 1403 degrees C, with prediction accuracy of response surface methodology below 5%.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Environmental
Zeqi Wang, Zhanguo Su, Vishal Goyal, N. Bharath Kumar, Mahidzal Dahari, Abdulkareem Abdulwahab, A. M. Algelany, Fatma Aouaini, Husam Rajab, H. Elhosiny Ali
Summary: This study investigates the use of the Taguchi technique in optimizing and evaluating a tri-generation system based on a gas turbine. The results show that the air-based system performs better with a compression ratio of 10, maximum temperature of 900 degrees C, and fed MSW of 1 mol/s. On the other hand, the steam-based system operates optimally at a compression factor of 15, maximum temperature of 1000 degrees C, and fed MSW of 1.2 mol/s. Overall, the air-based system outperforms the steam-based system with higher electrical power, heating capacities, efficiency, and lower normalized emission.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Thermodynamics
Tao Hai, Ibrahim B. Mansir, Bader Alshuraiaan, Azher M. Abed, H. Elhosiny Ali, Mahidzal Dahari, Hind Albalawi
Summary: This study investigates the performance enhancement of a solar air heater using inclined impinging jets on the heater surface. Two main sets of arrangements are considered for the jet nozzles including the parallel and crossing orientation of nozzles in consecutive rows. It was found that the proposed jet solar air heater improved the Nu number and thermohydraulic performance parameter compared to the conventional unimproved solar air heater.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Xiangbo Liang, N. Bharath Kumar, Ibrahim B. Mansir, Pradeep Kumar Singh, Azher M. Abed, Mahidzal Dahari, Samia Nasr, Hind Albalawi, A. Cherif, Makatar Wae-hayee
Summary: Using micro-channel heat sinks (MCHSs) in electronic devices is common but the generated heat poses challenges in heat rejection. Placing vortex generators (VGs) improves cooling but increases pressure drop. In this study, ANN and RSM models were used to analyze the effect of varying VGs' placement angle, distances on the Nusselt number and pressure drop of MCHSs.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Xiaoqin Wang, Zhanguo Su, Ibrahim B. Mansir, Pradeep Kumar Singh, Nashwan Adnan Othman, Lei Zhang, Mingkui Li, Mahmood Shaker Albdeiri, H. Elhosiny Ali, Mahidzal Dahari, Ahmed Deifalla
Summary: Thermal management of microelectronic circuits is a difficult challenge, but an artificial neural network can optimize the geometry of a finned-MCHS. The parameter t has a noticeable impact on the thermal and hydrodynamic properties of the device.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Review
Remote Sensing
Anees ul Husnain, Norrima Mokhtar, Noraisyah Mohamed Shah, Mahidzal Dahari, Masahiro Iwahashi
Summary: UAVs have significantly contributed to multi-disciplinary research, with a rapid increase in publications in recent years. This article presents a systematic literature review of 20 parameters in six categories to analyze the characteristics of UAV research sectors. The study highlights the relationship between UAV autonomy and mission complexity, and introduces two key models and a complexity matrix to measure autonomy. The article also provides information on the technologies used in academic research.
Article
Thermodynamics
Yanqin Wang, H. S. Hedia, Pradeep Kumar Singh, M. A. Almas, H. M. Attar, Mahidzal Dahari, M. H. Hedia, A. M. Algelany, Makatar Wae-hayee
Summary: A novel tri-generation system of power, heating, and freshwater is developed in this study, which integrates a supercritical CO2 Brayton cycle, a solid oxide fuel cell, and a desalination system of humidification-dehumidification type. The key variables of the solid oxide fuel cell are evaluated and optimized to achieve the maximum power. The system provides 674.6 kW of net power, 157.3 g/h of freshwater mass flow rate, and 13812 kg/h of hot water mass flow rate in its optimum condition.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Zhongjie Fei, Su Zhanguo, Jianbo Lu, Pradeep Kumar Singh, Mahidzal Dahari, Hasan Sh. Majdi, H. Elhosiny Ali, Souhail Mohamed Bouzgarrou
Summary: In this study, a hydrogen production system based on a solid oxide electrolyzer, a gasifier, and a hydrogen separation membrane was analyzed from a techno-economic perspective. Multi-objective optimization was carried out to minimize the levelized cost of hydrogen and carbon dioxide emissions. The cost of selling the produced hydrogen was determined according to different payback times.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Civil
Xubo Ye, Zhanguo Su, Mahidzal Dahari, Yiping Su, Samirah H. Alsulami, Musaad S. Aldhabani, Azher M. Abed, H. Elhosiny Ali, Souhail Mohamed Bouzgarrou
Summary: Investigation on using RVM, SVM, and LSSVM algorithms for hybrid modeling of mechanical properties and hardness in FSW. Comparison between experimental data and model outputs showed that the hybrid LSSVM-RVM model efficiently estimates the mechanical properties and hardness.
Article
Thermodynamics
Wei Zhang, Chen Shu-jin, Ibrahim B. Mansir, Pradeep Kumar Singh, Fatimah Malek Mohsen, Ahmed Farag, Mahidzal Dahari, H. Elhosiny Ali, Souhail Mohamed Bouzgarrou
Summary: This paper proposes a novel linear arrangement of legs for annular thermoelectric generators, which greatly improves design flexibility compared to the conventional π structure. Numerical simulations were conducted to investigate the effects of various parameters on the performance of the linear annular thermoelectric generator. The results showed that a height ratio, angle ratio, and thickness ratio of 0.5 achieved the highest conversion and exergy efficiencies, while minimizing thermal stress on the legs and cost per watt of output power.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Engineering, Multidisciplinary
Yan Cao, Mohamed Salem, Samia Nasr, Shayma Hamza Sadon, Pradeep Kumar Singh, Azher M. Abed, Mahidzal Dahari, Maha M. Almoneef, Makatar Wae-hayee, Ahmed M. Galal
Summary: Due to the pollution caused by cruises, the use of techniques to reduce carbon dioxide emissions is crucial. This study proposes a novel waste heat recovery model for a 1MW marine diesel engine in a low-temperature environment, which is expected to yield outstanding outcomes.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhongjie Fei, Su Zhanguo, N. Bharath Kumar, Pradeep Kumar Singh, Zainab A. Farhan, Mahidzal Dahari, Haitao Lin, H. Elhosiny Ali, Souhail Mohamed Bouzgarrou
Summary: A novel and low-emission multi-generation system has been developed based on solid oxide fuel cell, which can simultaneously generate power, fresh water and hot air. Through analysis of variance and multi-objective optimization, the optimal operating conditions and corresponding performance indicators have been determined.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)