Article
Energy & Fuels
Fuqiang Wang, Guoliang Zhang, Xuhang Shi, Yan Dong, Yimeng Xun, Aoyu Zhang
Summary: The study proposes a bionic-calabash-shaped capsule to enhance the thermal performance of phase change material capsules used in thermal energy storage. Experimental and numerical results demonstrate that the bionic-calabash shape accelerates the melting process and reduces drag coefficient compared to spherical capsules.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Sudhanshu Pandey, Se Hyun Kim, Seong Hyun Park, Man Yeong Ha
Summary: This study investigates the thermal energy storage performance of a latent heat thermal energy storage system with three angled fins. The results show that the angle of inclination of the fins has a significant impact on heat transfer characteristics and energy storage performance. An optimal fin angle for maximum energy storage performance is identified.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Yubin Fan, Meng Yu, Chunwei Zhang, Long Jiang, Xuejun Zhang, Yang Zhao
Summary: A method to accelerate PCM melting based on convection intensification is proposed in this paper, which leads to significant reduction in total melting time and improvement in melting performance, as demonstrated by experiments.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
R. A. Nicholls, M. A. Moghimi, A. L. Griffiths
Summary: This study investigates the impact of fin type and orientation on the charging and discharging processes of a horizontal concentric filled with phase change material. The results show that the performance is significantly improved with the use of transversal corrugated fin design. The melting process is mainly influenced by natural convection, while conduction is the main mode of heat transfer in the solidification process. The transversal corrugated fin design outperforms other cases in terms of melting time reduction, and the overall processing time is significantly shorter.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Guoqiang Wu, Sheng Chen, Sibo Zeng
Summary: Mechanical vibration can enhance heat transfer of thermal systems, with factors such as frequency and orientation affecting melting processes. Low frequency vibration accelerates melting, while higher frequency has a weaker acceleration effect. Vibration axis parallel to gravity results in the fastest thermal response rate.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Sourav Chatterjee, Dipankar Bhanja, Sujit Nath
Summary: This numerical study analyzes the melting behavior of three phase change materials, namely Lauric acid, paraffin wax, and n-Octadecane, in trapezoidal-shaped cavities with inner heated tubes. The study investigates the influence of the angular variation of the containers and the position of the tubes on the melting rate and heat transfer process of the phase change materials. The results demonstrate that the shape of the cavity and proper positioning of the inner tube can significantly affect the melting phenomenon and improve the charging rate.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Yasser Harmen, Younes Chhiti, Maryam El Fiti, Mustapha Salihi, Charafeddine Jama
Summary: The eccentricity of shell and tube heat exchanger (STHE) has a significant impact on the performance of thermal energy storage (TES) systems with phase change materials (PCM). In this study, it was found that eccentric charge performance is better than concentric arrangement, with optimal eccentricities of 6 and 10 for single-tube and multi-tube systems, respectively. By optimizing the eccentricity, the total melting time of the four-tube, three-tube, two-tube, and single-tube systems were reduced by 63%, 63%, 60%, and 54% compared to concentric cases, respectively. Additionally, the total solidification time of the single-tube case was reduced by 56%, 52%, and 49% compared to the four-tube, three-tube, and two-tube cases.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
T. Shockner, G. Ziskind
Summary: Thermal energy storage is crucial for the advancement of renewable energy. Close-contact melting in phase-change materials plays a significant role in speeding up the charging process. This study explores the melting behavior of PCM in a vertical cylindrical enclosure and demonstrates the importance of close-contact melting.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Songzhen Tang, Junjie Zhou, Chao Shen, Dongwei Zhang
Summary: This study examines the effects of shell-to-tube diameter ratios, fin number, and fin arrangement on the melting performance of a buried tube latent heat storage system, finding that a diameter ratio of 2.0 yields the best overall performance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Green & Sustainable Science & Technology
Weimin Guo, Zhaoyu He, Yuting Zhang, Peng Zhang
Summary: This study experimentally and theoretically examines the thermal performance of the packed bed thermal energy storage (PBTES) system used in waste heat recovery and utilization. The results show that various parameters significantly influence the time durations of charging and discharging processes as well as the thermal efficiency of the system.
Article
Energy & Fuels
Vahid Safari, Hossein Abolghasemi, Leila Darvishvand, Babak Kamkari
Summary: This study evaluates the combined effect of fin configuration and eccentricity of heat transfer tube on the melting behavior of phase change material (PCM) inside shell and tube heat exchangers. Experimental findings show that the eccentric tube HX and bifurcated fin configuration can significantly reduce melting time, while numerical simulations indicate that bifurcations increase total heat transfer rate.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Environmental Sciences
Purohitam Narasimha Siva Teja, Santhosh Kumar Gugulothu, Gadepalli Ravikiran Sastry, Bhasker Burra, Swapnil Sureshchandra Bhurat
Summary: The study analyzed the impact of nanoparticles on paraffin phase change material in a 2D square thermal energy storage system, showing that their addition improves the thermal characteristics. The melting rate increases with an increase in nanoparticle concentration, and sidewall heating results in a higher melting rate compared to bottom wall heating.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Hassan Olfian, Seyed Soheil Mousavi Ajarostaghi, Mohammadreza Ebrahimnataj, Mousa Farhadi, Muslum Arici
Summary: The aim of this study is to analyze a U-type evacuated tube solar collector that utilizes phase change material to store and reuse solar energy. Both charging and discharging processes are considered and modeled. The results show that the case with 6 mm diameter yields the best performance in terms of liquid fraction and fluid outlet temperature during both charging and discharging processes.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Sourav Chatterjee, Dipankar Bhanja
Summary: The melting behavior of a phase change material placed in various shaped cavities with an inner heated tube was studied numerically. The results show that the shape of the cavity and the position of the inner tube can influence the melting rate and improve the charging rate of the material.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
Shuai Zhang, Yuying Yan
Summary: This study calculated the melting point of binary chloride salts using the molecular dynamics method, providing important fundamental thermal information for phase change heat transfer research. The study revealed the mechanism of lower melting points in small nanoclusters, where ions vibrate more intensely and crystal structures are more easily destroyed. The ion self-diffusion coefficient was also analyzed and found to not be significantly affected by the component and size of nanoclusters.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Seyed Ebrahim Ghasemi, A. A. Ranjbar, M. J. Hosseini
MICROELECTRONICS RELIABILITY
(2017)
Article
Mathematics, Applied
Y. Pahamli, M. J. Hosseini, A. A. Ranjbar, R. Bahrampoury
APPLIED MATHEMATICS AND COMPUTATION
(2018)
Article
Thermodynamics
Majid Gorzin, Mohammad J. Hosseini, Ali A. Ranjbar, Rasool Bahrampoury
APPLIED THERMAL ENGINEERING
(2018)
Article
Green & Sustainable Science & Technology
M. Kazemi, M. J. Hosseini, A. A. Ranjbar, R. Bahrampoury
Article
Construction & Building Technology
R. Ahmadi, M. J. Hosseini, A. A. Ranjbar, R. Bahrampoury
SUSTAINABLE CITIES AND SOCIETY
(2018)
Article
Construction & Building Technology
M. Rahimi, M. J. Hosseini, M. Gorzin
SUSTAINABLE CITIES AND SOCIETY
(2019)
Article
Engineering, Multidisciplinary
S. M. Borhani, M. J. Hosseini, A. A. Ranjbar, R. Bahrampoury
APPLIED MATHEMATICAL MODELLING
(2019)
Article
Energy & Fuels
Majid Gorzin, Mohammad J. Hosseini, Masoume Rahimi, Rasool Bahrampoury
JOURNAL OF ENERGY STORAGE
(2019)
Article
Thermodynamics
S. Saedi Ardahaie, M. J. Hosseini, A. A. Ranjbar, M. Rahimi
APPLIED THERMAL ENGINEERING
(2019)
Article
Green & Sustainable Science & Technology
A. Ebrahimi, M. J. Hosseini, A. A. Ranjbar, M. Rahimi, R. Bahrampoury
Article
Thermodynamics
Rasool Bahrampoury, Younes Pahamli, Ali Torbatinejad, Mohammad Javad Hosseini
Summary: To improve the thermal efficiency and reduce industrial equipment costs, research has been conducted on the development and performance improvement of power generation cycles. Investigations focusing on Kalina cycles as a power generation system for low-grade heat sources have gained attention. This research studied KCS-11 and Ekalina cycles, introducing the SEKalina cycle as a modification of the Ekalina cycle. The use of an ejector in SEKalina cycle has shown significant improvements in thermal efficiency and net power output compared to EKalina and KCS-11 cycles. The net power output in SEKalina cycle is 2% higher than that of EKalina cycle.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
(2023)
Article
Thermodynamics
Younes Pahamli, Mohammad Javad Hosseini, Ali Torbatinejad
Summary: This study examines the effectiveness of placing comma-shaped pin fins in a minichannel heat sink. The impact of different geometrical factors and fluid additives is evaluated. The distance and aspect ratio of the pin fins are introduced as geometrical parameters. Different fluid additives including nanofluid based water, MPCM slurry, and MPCM slurry with nanofluid at different concentrations are added to the base fluid. Numerical analysis shows that increasing the pin fin distance leads to a decrease in average temperature and an increase in both the Nusselt number and pressure drop. Furthermore, an aspect ratio of 0.8 is found to be optimal for achieving the highest Nusselt number. It is also observed that altering the fluid additive enhances heat transfer, with MPCM slurry achieving the highest Nusselt number at all Reynolds numbers.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Engineering, Multidisciplinary
M. Faghani, M. J. Hosseini, R. Bahrampoury
ALEXANDRIA ENGINEERING JOURNAL
(2018)
Article
Chemistry, Multidisciplinary
Seyed Ebrahim Ghasemi, Ali Akbar Ranjbar, Seiyed Mohammad Javad Hosseini
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION
(2018)
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.