Article
Green & Sustainable Science & Technology
Ahmed S. Alsaman, E. M. M. Ibrahim, M. Salem Ahmed, A. M. Farid, Ehab S. Ali, Ahmed A. Askalany
Summary: This study presents an innovative composite material, Maxsorb III/CaCl2, which demonstrates high adsorption capacity, cooling capacity, and freshwater production. Through acid treatment and impregnation, the composite material achieved a water uptake of 1.35 kgH2O/kgMax/CaCl2. The simulation model showed promising results with a SDWP of 25.4 m3/tonMax/CaCl2 per day, SCP 717.4 W/kgMax/CaCl2, and COP 0.704 at 85 degrees C.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Energy & Fuels
Ahmed S. Alsaman, Eslam Mohamed M. Ibrahim, Mahmoud S. Ahmed, Ahmed A. Askalany
Summary: Adsorption technology is an attractive and environmentally friendly method for producing desalinated water and cooling. This review summarizes the studies on adsorption and its applications in desalination and cooling, with a focus on the synthesis and adsorption properties of composite materials. The review includes over 70 composites, with the highest water vapor uptake of 1.92 kg/kg for PHTS/CaCl2-20 wt% composite and the highest desorption amount of 1.48 kg/kg for MOF composite in desalination applications, and 0.87 kg/kg for vermiculite composite in cooling applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Engineering, Environmental
Gizem Ozge Kayan, Asgar Kayan
Summary: Natural polymers, such as chitosan, have great potential in removing dyes and heavy metal ions due to their higher adsorption capacities and improved handling properties as composite materials.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Thermodynamics
Mohamed G. Gado, Tamer F. Megahed, Shinichi Ookawarad, Sameh Nada, Ibrahim I. El-Sharkawy
Summary: The study examines the energetic and economic feasibility of three configurations of a solar-driven hybrid adsorption-compression cooling system using typical meteorological data of Cairo, Egypt. Configuration-I can substantially reduce electricity consumption, Configuration-II achieves net-zero electricity consumption, and Configuration-III saves energy costs.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Shuting Zhuang, Kunkun Zhu, Jianlong Wang
Summary: In this study, fibrous chitosan/cellulose composite was prepared using the wet-spinning method to increase its specific surface area, thus enhancing the adsorption capacity towards Co(II). The as-prepared fibrous composite showed a homogeneous fiber structure and high specific surface area, leading to a significant improvement in Co(II) adsorption capacity. The adsorption kinetic behavior followed the pseudo second-order kinetic model, and the amino groups along with hydroxyl groups played a dominant role in Co(II) coordination and adsorptive removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Wenjie Liu, Qingliang Wang, Hongqiang Wang, Qi Xin, Wei Hou, Eming Hu, Zhiwu Lei
Summary: A novel chitosan/Chlorella pyrenoidosa composite adsorbent bearing phosphate ligand (CSP/ CP) was designed and synthesized in this study, showing high uranium adsorption capacity and excellent selectivity for uranium. The mechanism analysis revealed that CSP/CP has active sites for high-performance uranium adsorption, and it can be recycled more than five times through desorption with 0.1 M Na2CO3 + 2% H2O2 at 318 K, providing a new scientific basis for the preparation of high selectivity composite adsorbent by chitosan.
Article
Thermodynamics
Ahmed S. Alsaman, E. M. M. Ibrahim, M. Salem Ahmed, Ehab S. Ali, A. M. Farid, Ahmed A. Askalany
Summary: This study explores enhancing the performance of adsorption systems using sodium polyacrylate (SP) as an adsorbent. Different SP samples were investigated for their water adsorption capacity and system parameters for desalination and cooling applications. The results show that the composite SP/CaCl2 has the highest adsorption uptake and the system can run efficiently using renewable energy or waste heat sources.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Materials Science, Multidisciplinary
P. Satheeshkumar, A. Immanuel Selwynraj
Summary: Novel composite adsorbent samples consisting of coconut shell carbon black, graphite powder, and polyvinyl alcohol binder were developed and characterized in this study. The synthesized composite adsorbent samples were evaluated for their thermal conductivity, pore size distribution, pore volume, and specific surface area. Composite A with 93% activated carbon, 5% graphite powder, and 2% PVA exhibited the highest pore volume and specific surface area, and showed improved thermal conductivity compared to its parent material without compromising mass transfer properties. However, adding graphite powder beyond 5% compromised the adsorption capacity of the composite adsorbents.
Article
Chemistry, Multidisciplinary
Peiyu Zhao, Yanchao Yin, Wei Cheng, Xianmang Xu, Deliang Yang, Wenpeng Yuan
Summary: The study successfully synthesized mesoporous carbon with ultra large pore volume and abundant mesopores structure, and impregnated with tetraethylenepent amine (TEPA) to prepare the adsorbent, demonstrating high CO2 capture performance.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Engineering, Chemical
Ratnesh Kumar Patel, Ravi Shankar, Prateek Khare, Prasenjit Mondal
Summary: This study successfully treated sugar industry wastewater using a combination of continuous electrochemical and adsorption processes, with an economic assessment of the treatment process. The results showed that a single operational process was not as effective as the combined EC and adsorption process in removing COD from the wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Thermodynamics
Shanshan Cai, Zhipeng Hua, Min Dai, Song Li, Xiaobing Luo, Zhengkai Tu
Summary: This study proposes three types of improved composite adsorbents, namely adsorbents with improved heat transfer, improved mass transfer, and simultaneously improved heat and mass transfer. The performance of adsorption and heat transfer is tested and compared, and the SGMC composite shows the highest cooling capacity and comparable coefficient of performance (COP) to the composite adsorbent with improved mass transfer. Compared to the traditional SG-water system, the SGMC system achieves a 22% increase in cooling capacity, a 12.8% increase in COP, and a 16.7% reduction in refrigeration cycle time.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Environmental
Hao Zhang, Jing Wang, Yakun Teng, Shushu Jia, Hui Huang, Yongxin Li, Ce Wang
Summary: A novel adsorbent (Ce-MOF@ABP) with antibacterial properties was developed for the removal of 2,4-D. The adsorbent was prepared by in-situ growth of Ce-based MOF with UiO-66 structure on the surface of electrospun nanofibers. The composite fibrous membrane showed good removal effect on 2,4-D in static adsorption experiments, with a maximum adsorption capacity of 200.80 mg/g. The dynamic filtration experiment also demonstrated a high removal rate of 90.3% within 6 min, and the bacteriostatic rate against Escherichia coli was 92.91%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Guizhi Yan, Xianjin Qi, Heng Wang, Jiahao Shi
Summary: An effective magnetic composite material was fabricated for removing arsenic from wastewater with high adsorption capacity and selectivity. Experimental and thermodynamic studies revealed the adsorption mechanism and circulation performance of the composite material.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Thermodynamics
Mingliang Li, Yanan Zhao, Rui Long, Zhichun Liu, Wei Liu
Summary: This study investigates the influence of spatial gradient porosity distribution of the adsorbent bed on the adsorption process and cooling performance, revealing a significant impact on cooling performance in the z direction. Increasing bed porosity from the cooling side to the steam side improves overall heat transfer performance and specific cooling power.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Environmental Sciences
Roberta A. Teixeira, Eder C. Lima, Antonio D. Benetti, Pascal S. Thue, Diana R. Lima, Farooq Sher, Glaydson S. dos Reis, Navid Rabiee, Moaaz K. Seliem, Mohamed Abatal
Summary: Two carbon composite materials were prepared using a mixture of avocado biochar and methyl polysiloxane (MK). The materials showed excellent adsorption properties for the removal of the antibiotic ciprofloxacin from water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Energy & Fuels
Ahmed S. Alsaman, Eslam Mohamed M. Ibrahim, Mahmoud S. Ahmed, Ahmed A. Askalany
Summary: Adsorption technology is an attractive and environmentally friendly method for producing desalinated water and cooling. This review summarizes the studies on adsorption and its applications in desalination and cooling, with a focus on the synthesis and adsorption properties of composite materials. The review includes over 70 composites, with the highest water vapor uptake of 1.92 kg/kg for PHTS/CaCl2-20 wt% composite and the highest desorption amount of 1.48 kg/kg for MOF composite in desalination applications, and 0.87 kg/kg for vermiculite composite in cooling applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Chemical
Ahmed S. S. Alsaman, M. Salem Ahmed, E. M. M. Ibrahim, Ehab S. S. Ali, A. M. Farid, Ahmed A. A. Askalany
Summary: Adsorption cooling and desalination (ACD) system offers a solution to the water, energy, and environmental dilemma by enhancing the performance of the adsorption system using improved activated carbon Maxsorb III as an adsorbent.
Article
Thermodynamics
Ramy H. Mohammed, Naef A. A. Qasem, A. M. Farid, Syed M. Zubair, Ahmed S. Alsaman, Ahmed A. Askalany, Ehab S. Ali
Summary: The global water crisis can be alleviated by converting saline water to potable water through desalination technologies. This paper proposes a hybrid system combining solar-driven reverse osmosis and thermal desalination to enhance water recovery ratio and reduce freshwater cost. The theoretical and economic models show that the hybrid system has a higher recovery ratio of 84% and reduces freshwater cost by 23% to 27% compared to standalone reverse osmosis plants.
APPLIED THERMAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Ahmed S. Alsaman, E. M. M. Ibrahim, M. Salem Ahmed, A. M. Farid, Ehab S. Ali, Ahmed A. Askalany
Summary: This study presents an innovative composite material, Maxsorb III/CaCl2, which demonstrates high adsorption capacity, cooling capacity, and freshwater production. Through acid treatment and impregnation, the composite material achieved a water uptake of 1.35 kgH2O/kgMax/CaCl2. The simulation model showed promising results with a SDWP of 25.4 m3/tonMax/CaCl2 per day, SCP 717.4 W/kgMax/CaCl2, and COP 0.704 at 85 degrees C.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Moustafa M. Aboelmaaref, Jun Zhao, Wenjia Li, Ehab S. Ali, Ahmed A. Askalany, Mohamed Ghazy, Lei Gu, Mohamed E. Zayed
Summary: This study investigates an adsorption-based distillation system powered by a solar dish/Stirling engine for combined electricity and freshwater production. The waste heat recovery in the Stirling engine significantly increases the hot water temperature, which results in a stable temperature range throughout the day. The system achieves an electrical power output of 23.42 kW, solar to electricity efficiency of 23.40%, specific daily freshwater production of 11.53 m3 per ton of silica gel, specific cooling power of 320 W/kg of silica gel, and a gained output ratio of 0.62.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Ehab S. Ali, A. M. Farid, Ahmed A. Askalany, Mohamed Ghazy, A. E. Zohir, Ahmed S. Alsaman
Summary: This paper examines the performance metrics of promising materials used in environmentally friendly adsorption desalination system to lower desalinated water prices. Results show that the ADS using SP/CaCl2 composite has a relatively high specific daily water production of 15 m3/ton with COP = 0.67. The SDWP can be increased up to 45 m3/ton if heat recovery is used in the system. The cost of desalinated water is estimated at 3.8 $/m3 using Solar energy and 0.63 $/m3 using waste heat evaluated for a system with HR.
ENERGY CONVERSION AND MANAGEMENT-X
(2023)
Article
Engineering, Environmental
Moustafa M. Aboelmaaref, Jun Zhao, Mohamed E. Zayed, Yang Li, Lei Gu, Ahmed A. Askalany, Mohamed Ghazy, Ahmed S. Alsaman, Ehab S. Ali
Summary: The paper introduces a new hybrid freshwater production system driven by renewable energy, which combines reverse osmosis, adsorption distillation system, and solar dish Stirling engine. The system utilizes waste heat recovery to enhance performance and achieves high freshwater production rate through cooperative concept.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
A. E. Zohir, Ehab S. Ali, A. M. Farid, Ramadan N. Elshaer, Ramy H. Mohammed, Ahmed S. Alsaman, Hamdy H. El-Ghetany, Ahmed A. Askalany
Summary: Energy, freshwater, and the environment are interconnected and essential to human activities. The adsorption desalination system, with its eco-friendly working fluids and renewable energy sources, offers a promising solution to address this interrelationship. This paper reviews the adsorbent materials used in experimental adsorption desalination studies and provides a comprehensive overview of previous research in this field.
INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
