Article
Thermodynamics
Shady M. Henein, Ahmed A. Abdel-Rehim
Summary: In this study, the effect of using MgO/MWCNT hybrid nanofluid on the thermal performance of the evacuated tube solar collector was investigated. The results showed that increasing the weight ratios of MWCNTs nanoparticles and volume flow rate improved the energy and exergy efficiencies of the collector. Furthermore, MgO/MWCNT (50:50) hybrid nanofluid performed better than other hybrid nanofluids at all volume flow rates.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Adarsh Abi Mathew, Venugopal Thangavel
Summary: This study investigated the design, development, and performance analysis of a novel thermal energy storage integrated evacuated tube heat pipe solar dryer. It was found that a combination of mass flow rates could increase the energy efficiency of the solar collector and reduce drying time.
Article
Environmental Sciences
Alicja Siuta-Olcha, Tomasz Cholewa, Kinga Dopieralska-Howoruszko
Summary: This study presents the experimental results on the energy performance of an evacuated solar collector, heat pipe type, in different weather conditions and operating parameters. The research defines the thermal and exergy efficiencies of the solar collector and shows that increasing wind speed significantly decreases both efficiency values.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Salwa Bouadila, Tauseef-ur Rehman, Maughal Ahmed Ali Baig, Safa Skouri, Sara Baddadi
Summary: Evacuated tube solar collectors are technically viable and economically attractive for solar water heating. However, they suffer from heat and water losses along the manifold. To address this issue, Phase Change Materials (PCMs) have been integrated into the collectors. This paper presents three modified collectors and compares their performance through energy and exergy analysis, as well as economic evaluation.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Energy & Fuels
Adarsh Abi Mathew, Venugopal Thangavel
Summary: This study introduces a novel thermal energy storage integrated evacuated tube heat pipe solar air heater for high-temperature applications. By utilizing a special heat pipe arrangement and thermal energy storage medium, the system achieves stable operation and high efficiency. Performance evaluation was conducted for different airflow rates, with the system achieving a maximum thermal efficiency of 89%.
Article
Green & Sustainable Science & Technology
Mohammed J. Alshukri, Adel A. Eidan, Saleh Ismail Najim
Summary: This study presents a new method of integrating phase change materials in solar water heaters to improve performance by delaying heat release. The results demonstrate that integrating PCM in both the evacuated tube and separated tanks significantly improves efficiency and extends the supply of hot water.
Article
Thermodynamics
Hong-Jin Joo, Hee-Youl Kwak, Minsuk Kong
Summary: The present study experimentally investigates the effect of twisted tape inserts on the thermal performance of an eccentric inlet and outlet heat pipe evacuated-tube solar thermal collector (HP-ESTC). The results show that the addition of twisted tape inserts enhances heat transfer performance by eliminating stagnation flow, reducing flow skewness, and generating rotating flow. A comprehensive performance analysis considering both heat transfer and pressure drop characteristics confirms that using twisted tape inserts can improve overall performance by approximately 7.7%. To assess its applicability for commercial HP-ESTCs, an HP-ESTC containing twisted tape inserts was manufactured and tested outdoors.
Article
Green & Sustainable Science & Technology
Salwa Bouadila, Sara Baddadi, Tauseef-ur Rehman, Rabeb Ayed
Summary: This study explores the improvement of efficiency in evacuated tube solar collectors through the addition of reflectors and thermal storage units. The performance of different designs in various regions of Tunisia is evaluated, and an energy balance model is established. Future research directions are also recommended.
Article
Thermodynamics
Ismail Ozcan, Ahmet Ozsoy, Arif Emre Ozgur, Mustafa Karaboyaci
Summary: This study investigates the thermal efficiency and pressure drop of a solar collector with serial connected U-pipe evacuated tubes, using nanofluid of different concentration ratios. It was found that the efficiency increased by 14.3% to 22.1% compared to water when using a 2% concentration nanofluid with decreasing reduced temperature. The highest collector efficiency was approximately 80% with a 2% TiO2 concentrated nanofluid.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Moucun Yang, Liming Zhi, Kelong Diao, Yuezhao Zhu, Robert A. Taylor
Summary: A new solar collector was designed for producing mid-temperature heat, with a unique structure and coating. Genetic algorithm was used to optimize the collector's parameters, and theoretical and numerical analysis were conducted for its optical and thermal performance. The results showed that the collector had an optical efficiency of 57.6% and a thermal efficiency of 30.6% at 250 degrees C.
Article
Energy & Fuels
Adarsh Abi Mathew, Venugopal Thangavel, Neeta Amol Mandhare, Masnaji R. Nukulwar
Summary: A new solar dryer system that can work with multiple heat storage mediums was developed and analyzed. The system utilized a heat pipe layout and thermal storage mediums to achieve high energy efficiency. The experiments showed that the system performed well with therminol-55 as the thermal storage medium, achieving a maximum drying air temperature of 118 degrees Celsius.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Komeil Afsari, Mohammad Reza Sarmasti Emami, Sasan Zahmatkesh, Jiri Jaromir Klemes, Awais Bokhari
Summary: The effect of input heat, working fluid type, two types of surfactants, and nanoparticle concentration on the energy efficiency and thermal resistance of a thermosyphon heat pipe (THP) was investigated and optimized. It was found that using graphene oxide (GO) nanofluid with SDS surfactant can improve the stability and thermal efficiency of the THP.
Article
Thermodynamics
Kishor Deshmukh, Suhas Karmare, Pradeep Patil
Summary: The convective heat transfer performance of U-pipe evacuated tube solar thermal collector with TiN nanofluid was investigated in this study. TiN nanoparticles with sizes of 40-50 nm were dispersed in distilled water at different volume concentrations. The stability and thermophysical properties of TiN nanofluid were experimentally measured. The experimental investigation included the convective heat transfer coefficient, friction factor characteristic, and solar thermal efficiency at different volume concentrations and mass flow rates. The performance of the solar thermal collector was tested under outdoor conditions. A correlation was proposed to determine the Nusselt number, friction factor, and solar thermal efficiency in laminar flow. The TiN nanofluid was recommended for industrial solar thermal applications due to its notable improvement in convective heat transfer performance despite the friction factor penalty.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Huan Liu, Dongxu Ji, Meng An, A. W. Kandeal, Amrit Kumar Thakur, Mohamed R. Elkadeem, Almoataz M. Algazzar, Gamal B. Abdelaziz, Swellam W. Sharshir
Summary: In order to improve the thermo-economic performance of a pyramid solar still (PSS), the researchers integrated evacuated tubes and ultrasonic foggers into the device and added Co3O4 nanofluid. The results showed that incorporating all the proposed additives increased freshwater production, energy efficiency, and exergy efficiency by 83.87%, 18.29%, and 38.86% respectively. Additionally, the production cost per liter of freshwater was reduced by 11.61%.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Green & Sustainable Science & Technology
Weiwei Zhang, Linzuo Duan, Jiabin Wang, Xuyang Ba, Zijing Zhang, Rui Tian
Summary: This study investigates the effect of tracking and installation errors on the optical performance of a parabolic trough collector with heat pipe evacuated tube. The results show that within certain ranges of errors, the optical efficiency remains unchanged, providing theoretical support for selecting tracking systems with reasonable accuracy and determining allowable installation errors.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Biochemistry & Molecular Biology
Fozia T. Minhas, Gulsin Arslan, I. Hilal Gubbuk, Cengiz Akkoz, Betul Yilmaz Ozturk, Baran Asikkutlu, Ugur Arslan, Mustafa Ersoz
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2018)
Review
Chemistry, Analytical
Erhan Zor, Haluk Bingol, Mustafa Ersoz
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Physical
Cisem Kirbiyik, Aysegul Toprak, Canan Baslak, Mahmut Kus, Mustafa Ersoz
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Green & Sustainable Science & Technology
Adem Sarilmaz, Gizem Yanalak, Emre Aslan, Faruk Ozel, Imren Hatay Patir, Mustafa Ersoz
Summary: In this study, phase and shape controlled copper-based multinary sulfide nanorods were synthesized, with Ni doped CuxS nanorods showing the highest catalytic activity and stability for photocatalytic hydrogen evolution.
Article
Chemistry, Analytical
Ozlem Gunes, Adem Sarilmaz, Salih Zeki Bas, Mustafa Ozmen, Faruk Ozel, Mustafa Ersoz
Summary: This study introduces a new electrochemical sensor for sensitive and selective detection of epinephrine, demonstrating good detection performance and selectivity, suitable for determining EPI concentrations in pharmaceutical samples.
Review
Chemistry, Physical
F. Ozel, H. S. Kilic, H. Coskun, I. Deveci, A. Sarilmaz, A. Balikcioglu, Y. Gundogdu, A. Aljabour, A. Ozen, S. Y. Gezgin, A. Houimi, A. Yar, M. Kus, M. Ersoz
Summary: Material science plays a crucial role in engineering versatile compounds for various technological applications. Thiospinels have attracted great interest due to their unique characteristics and potential utilizations, making them an essential class of material. This work summarizes broadband studies on thiospinels for the first time, covering synthesis methods, properties, and applications, and highlights future research needs and challenges.
MATERIALS TODAY ENERGY
(2021)
Article
Thermodynamics
Zeynep Kinas, Abdulkerim Karabiber, Adem Yar, Abdurrahman Ozen, Faruk Ozel, Mustafa Ersoz, Abdulkerim Okbaz
Summary: The study demonstrates that introducing reduced graphene oxide and carbon nanotube into the PAN matrix can enhance the output performance of TENGs, while introducing carbon black into PAN can reduce the tribo-potential. The best result shows that adding 3 wt% of CNT to PAN significantly increases the charge amount and power density of TENGs.
Article
Chemistry, Physical
Emre Aslan, Eminegul Genc, Mustafa Ozmen, Imren Hatay Patir, Mustafa Ersoz
Summary: Clay minerals are attractive support materials for catalytic applications due to their nontoxicity and low-cost, and Laponite D shows efficient photocatalytic activity under visible light. Incorporation of MoSx onto Laponite D structure enhances photocatalytic activity and stability, reaching about 7- and 2-times improvement compared to free-Laponite D and free-MoSx, respectively.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ilknur Aksoy Cekceoglu, Zafer Eroglu, Huseyin Kucukkececi, Fatih Sevgi, Mustafa Ersoz, Imren Hatay Patir, Onder Metin
Summary: In this study, nanocomposites of black phosphorus and silver nanoparticles were synthesized and found to exhibit better antibacterial activity against Gram-positive bacteria.
Article
Optics
Yasemin Gundogdu, Adem Sarilmaz, Aysenur Gencer, Faruk Ozel, Gokhan Surucu, Hamdi Sukur Kilic, Mustafa Ersoz
Summary: This study reports the synthesis and theoretical investigation of new materials CuNiCoS4, CuCo5S8, CuCo2S4 and their nonlinear optical properties. The electronic band gaps and nonlinear optical parameters were determined through experimental and theoretical calculations. The findings have significant implications for applications in photonics.
OPTICS AND LASER TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Faruk Ozel, Emre Arkan, Halime Coskun, Ilyas Deveci, Murat Yildirim, Mehmet Yildirim, Ikram Orak, Mehmet Okan Erdal, Adem Sarilmaz, Tugrul Talha Ersoz, Adem Kocyigit, Abdulkerim Karabulut, Abdurrahman Ozen, Abdalaziz Aljabour, Mahmut Kus, Mustafa Ersoz
Summary: Refractory metals and their compounds have diverse applications in research and industry, with sulfide forms being favored for high-performance structure fabrication. Research extension to other materials and ternary/quaternary structures can lead to enhanced product performance.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Cisem Kirbiyikkurukavak, Burak Zafer Buyukbekar, Mustafa Ersoz
Summary: In this study, two different electrospun polyacrylonitrile (PAN) based-activated carbon nanofiber (ACNF) composites were successfully prepared by incorporating well-distributed Fe2O3 and Co3O4 nanoparticles (NPs). The metal oxide NPs were shown to easily tune the morphological and textural properties of the composites, which exhibited relatively high surface areas for CO2 and CH4 adsorption. The isosteric heats calculated lower than 80 kJ/mol indicated that physical adsorption dominated the adsorption processes of CO2 and CH4 for both ACNE composites, making them promising materials for CO2 and CH4 adsorption systems.
TURKISH JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Abdullah Kepceoglu, Yasemin Gundogdu, Adem Sarilmaz, Mustafa Ersoz, Faruk Ozel, Hamdi Sukur Kilic
Summary: In this study, rhenium/rhenium oxide nanoparticles were successfully produced in ultrapure water using the fsPLAL method. The nanoparticles exhibited hexagonal and perovskite-like cubic crystal structures, with sizes ranging from 20 to 25nm. TEM results showed spherical particles with sizes varying from 20 to 60nm. The nanoparticles showed potential for photonic devices with broad bandgap values measured at 4.71 eV for the Re/ReO3 NPs mixture and 4.36 eV for pure ReO3 NPs.
TURKISH JOURNAL OF CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Yaser Acikbas, Mehmet Aksoy, Merve Aksoy, Damla Karaagac, Elif Bastug, Ahmed Nuri Kursunlu, Matem Erdogan, Rifat Capan, Mustafa Ozmen, Mustafa Ersoz
Summary: Pillar[n]arenes, with their high cavity and potential for chemical sensor applications, have been limited in thin film research.
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Cisem Kirbiyik, Burak Zafer Buyukbekar, Mahmut Kus, Mustafa Ersoz
TURKISH JOURNAL OF CHEMISTRY
(2019)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
