Review
Energy & Fuels
Marcin Sowa, Karol Sztekler, Agata Mlonka-Medrala, Lukasz Mika
Summary: This paper presents current developments in the field of composite sorbents with silica gel matrix as promising materials for adsorption chillers. The synthesis methods and properties of these materials are comprehensively analyzed, providing a clear basis for further research.
Article
Engineering, Environmental
Xiangyu Li, Zhiqing Wang, Ru Feng, Jiejie Huang, Yitian Fang
Summary: The technology of extracting aluminum from coal ash creates a large amount of waste residue, which can be recycled as a solid sorbent to capture CO2. In this study, PEI modified solid sorbents were synthesized using alumina-extracted residue (AR) as raw material, and the effects of different factors on CO2 adsorption capacity and kinetics were investigated. The proposed double-layer adsorption model suggests that the ratio of PEI adsorption layer to internal isolation layer changes with PEI loading and adsorption temperature, affecting the adsorption capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Thermodynamics
Yannan Zhang, Valeria Palomba, Andrea Frazzica
Summary: Adsorption desalination (AD) is a promising technology to address freshwater scarcity, especially in decentralized areas, by using renewable energy. The development of composite sorbents based on LiCl shows potential for improving desalination operations. The study compared different sorbents and analyzed their sorption behaviors, with LiCl@EVM_45 exhibiting the highest sorption capacity.
APPLIED THERMAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
X. Duan, G. Song, G. Lu, Y. Wang, J. Sun, A. Chen, X. Xie
Summary: This review summarizes the preparation methods and performance characteristics of current amine-modified sorbents, compares the differences in adsorption capacity, adsorption kinetics, regeneration energy, and cycling stability. It also analyzes the influencing factors of chemisorption performance and evaluates the technical and economic feasibility of four low-energy CO2 sorbent regeneration routes. Finally, it outlines the future challenges and research interests in the development of industrialized DAC technology.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Thermodynamics
Xiangyu Li, Zhiqing Wang, Zheyu Liu, Ru Feng, Shuangshuang Song, Jiejie Huang, Yitian Fang
Summary: The amine-impregnated AR sorbent synthesized by wet gel impregnation method showed excellent CO2 adsorption performance with a maximum adsorption capacity of 3.45 mmol/g under 100% CO2 at 75 degrees Celsius. The sorbent also maintained stability after multiple adsorption-desorption cycles.
Article
Engineering, Chemical
V. S. Derevschikov, V. L. Kuznetsov, J. V. Veselovskaya, S. I. Moseenkov, D. A. Yatsenko, A. P. Suknev, A. A. Leonova, N. V. Makolkin, P. S. Ruvinskiy
Summary: CNT-supported sorbents containing K2CO3 were prepared and showed promising dynamic CO2-sorption capacity for direct air capture applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Marina V. Solovyeva, Irina V. Krivosheeva, Larisa G. Gordeeva, Alexander E. Khudozhitkov, Daniil I. Kolokolov, Alexander G. Stepanov, Ralf Ludwig
Summary: In this study, novel composite sorbents based on hygroscopic salts loaded in the pores of MIL-101(Cr) were developed for atmospheric water harvesting (AWH) in arid regions. The CaCl2/MIL-101(Cr) composite demonstrated a high net water uptake under extra-dry climate conditions, surpassing other adsorbents. The water adsorption on the composite exhibited a synergistic effect and the pore confinement in MIL-101(Cr) promoted a prolonged transition to a dynamically melted state of the hydrated salt, resulting in altered sorption properties of CaCl2.
Article
Chemistry, Multidisciplinary
Yuqin Xiong, Yitong Zhou, Junlong Tian, Wanlin Wang, Wang Zhang, Di Zhang
Summary: The multispectral-compatible infrared camouflage technology, utilizing a semi-open Fabry-Perot structure and modulating structural parameters, achieves color-matched visible-infrared compatible camouflage. The prepared compatible camouflage film exhibits desirable camouflage performance and can be applied in practical situations.
Article
Materials Science, Multidisciplinary
Yunkai Qi, Jianjun Gu, Guochao Shi, Xin Li, Ao Wang, Shumin Yang
Summary: Self-assembled dual-working electrode electrolytic cells were used to produce highly symmetrical microstructures of twin alumina-Co composite films using a deflected electric field-assisted alternating current electrodeposition method. By adjusting the magnitude of the deflected electric field, the distribution of magnetic Co particles in the alumina nanopores can be changed, resulting in a synchronous symmetrical change in the microstructure of the composite films, enabling fine-tuning of the magneto-optical properties at the microscopic scale.
Article
Materials Science, Ceramics
Lu Zhang, Qin Xu, Chunxin Sun, Qi Peng, Tian Lan, Meiyu Dong, Yongna Xiao, Jing Zhang
Summary: A thin film material composed of Ni-Co alloy and photonic crystal was prepared using alternating current electrodeposition in a porous anodic alumina photonic crystal template. The study found that increasing the Co content in the deposition solution enhanced the magnetic properties of the Ni-Co alloy nanorods.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Kai-Leung Yung, Yan Xu, Wei Tian, Sui Man Ko, James Abbott Foster
Summary: The study demonstrated that combining carbon nanotube doping and surface nanostructuring can make the polystyrene surface superhydrophobic and improve light absorption and electromagnetic shielding properties. Although the addition of anionic surfactant plays a role in MWCNT dispersion, it does not significantly affect superhydrophobicity and light absorption.
Article
Materials Science, Ceramics
Wen-Chiao Huang, Pei-Wen Huang, Chi-Yuen Huang, Fu-Su Yen, Cheng-Liang Huang
Summary: Modified theta-Al2O3@ polyethylene glycol (PEG) technology was used to prepare alpha-Al2O3 green compacts composed of <100-nm alpha-Al2O3 crystallites using theta-Al2O3 as the starting material. The preparation process consisted of two steps, involving the removal of PEG to separate alumina crystallites in theta-Al2O3 compacts and the transformation of theta-Al2O3 into alpha-Al2O3. The resulting compact exhibited a phase purity of >85% alpha-Al2O3, with crystallite sizes ranging from 50 to 100 nm, and a compact density exceeding 60% of the theoretical value.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Elise Berut, Laurence Bois, Quentin Touloumet, Jonathan Outin, Michel Ondarts, Georgeta Postole, Maria Jose Rueda Lopez, Aline Auroux, Nolwenn Le Pierres
Summary: Composite sorbents based on silica and polyethylene glycol with calcium chloride exhibited good heat storage performance. The presence of polyethylene glycol enhanced the stability of hydrated calcium chloride and prevented salt leakage. Compared to zeolite, the composite sorbents had a higher mass energy density, making them suitable for heat storage applications with moderate power outputs.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Energy & Fuels
Larisa Gordeeva, Yuri Aristov
Summary: Adsorptive heat transformation (AHT) is a technology that effectively utilizes low-grade solar or waste thermal energy for cooling and heating with low environmental impact. The power of AHT is mainly determined by ad/desorption dynamics, which is hindered by slow heat transfer between the adsorbent and heat exchanger. Coating the adsorbent bed on the heat exchanger surface is considered an effective way to enhance heat transfer and increase the AHT power. This review comprehensively surveys the technology of adsorbent coating for AHT, including synthesis, dynamics, and applications.
Article
Thermodynamics
Jyun-De Liang, Lu-Kuan Tsai, Shaowei Chai, Yao Zhao, Yuan-Ching Chiang, Yanjun Dai, Sih-Li Chen
Summary: This study developed a novel lump activated alumina-based composite material (AACM), which had a rigid and compact structure. The AACM showed higher adsorption capacities and greater adsorption rate coefficients compared to activated alumina and silica gel-based composite material (SGCM). The proposed AACM also had comparable energy factor and better regeneration performance than SGCM, making it competitive and flexible for extensive applications.
Article
Thermodynamics
Yu. I. Aristov
Summary: This review article addresses recent results and current trends in adsorption heat conversion/storage in closed systems. It focuses on the development of new adsorbents and cycles, improvement of adsorption dynamics, and other topical issues, aiming to highlight the current progress, research trends, and existing gaps in the technology involved.
Article
Thermodynamics
M. M. Tokarev, I. S. Girnik, Yu. I. Aristov
Summary: This study tested a HeCol prototype under different climate conditions and found that higher specific power can be achieved in colder climates, reaching practical temperatures under closed-loop conditions.
Article
Thermodynamics
Yu Aristov, L. G. Gordeeva
Summary: Adsorption processes are commonly used to convert low- or ultralow-temperature heat into usable energy, with specific applications such as the VentireG process for ULT heat regeneration. A new approach for deeper analysis of this process involves plotting water adsorption isosters directly on psychrometric charts. This method allows for simultaneous tracking of air and adsorbent states, enabling a conscious selection of appropriate adsorbents for specific climatic zones.
Article
Thermodynamics
I. S. Girnik, W. Lombardo, A. Sapienza, Yu. I. Aristov
Summary: Adsorption heat transformation is an effective and environmentally friendly method that utilizes low-temperature heat. This study investigates the dynamics of water adsorption in relation to the initiation pathway and suggests that the specific power of adsorption heat transformers can be improved by optimizing the working cycle.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Alexandr Shkatulov, Haruka Miura, Seon Tae Kim, Massimiliano Zamengo, Takuya Harada, Hiroki Takasu, Yukitaka Kato, Yuri Aristov
Summary: This study investigates the modification of MgO with the triple eutectic mixture LiNO3-NaNO3-KNO3 in order to improve its decarbonation performance. The composites were comprehensively characterized and tested for their sorption properties. The results show that the material has high conversion rate, CO2 uptake, and excellent heat storage capacity at high temperatures.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Energy & Fuels
Larisa Gordeeva, Yuri Aristov
Summary: Adsorptive heat transformation (AHT) is a technology that effectively utilizes low-grade solar or waste thermal energy for cooling and heating with low environmental impact. The power of AHT is mainly determined by ad/desorption dynamics, which is hindered by slow heat transfer between the adsorbent and heat exchanger. Coating the adsorbent bed on the heat exchanger surface is considered an effective way to enhance heat transfer and increase the AHT power. This review comprehensively surveys the technology of adsorbent coating for AHT, including synthesis, dynamics, and applications.
Article
Thermodynamics
Svetlana Strelova, Larisa G. Gordeeva, Alexandra D. Grekova, Aleksei N. Salanov, Yuri I. Aristov
Summary: This study aims to accelerate methanol desorption from a composite LiCl/vermiculite and improve the heat storage capacity of adsorption thermal batteries. By modifying the vermiculite with an aluminum-oxygen containing additive, the methanol desorption time is reduced by a factor of 2-12, resulting in a fourfold increase in the specific power of the heat storage stage. This research has important implications for accelerating the sorption of various substances on composites based on macroporous matrices.
Article
Physics, Fluids & Plasmas
Alexandra Grekova, Irina Krivosheeva, Marina Solovyeva, Mikhail Tokarev
Summary: Four radiators with different core geometries were tested using a wind tunnel, and the global heat transfer coefficient (UA = 5 to 65 W/K) was measured under different air and water flows. The obtained UA values were in good agreement with sorption experiment data from literature. Correlations between Nusselt and Reynolds numbers were found, enabling the proposal of an algorithm for ranking commercial air radiators for use in adsorption heat transformers. The study demonstrates that the use of a wind tunnel can serve as an effective tool for quickly assessing the potential of air radiators for adsorption heat conversion without the need for destructive testing or complex adsorption installations requiring vacuum maintenance.
Article
Chemistry, Physical
Yu. I. Aristov
Summary: Adsorptive heat transformation is a promising technology for heat storage, conversion, and cold generation. Its development hinges on the advancement of adsorbents, efficient cycle implementation, and alignment of adsorbent-cycles. This article investigates the utilization of adsorption potential theory to achieve these goals and highlights the progress made in adsorptive heat transformation.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Marina V. Solovyeva, Irina V. Krivosheeva, Larisa G. Gordeeva, Alexander E. Khudozhitkov, Daniil I. Kolokolov, Alexander G. Stepanov, Ralf Ludwig
Summary: In this study, novel composite sorbents based on hygroscopic salts loaded in the pores of MIL-101(Cr) were developed for atmospheric water harvesting (AWH) in arid regions. The CaCl2/MIL-101(Cr) composite demonstrated a high net water uptake under extra-dry climate conditions, surpassing other adsorbents. The water adsorption on the composite exhibited a synergistic effect and the pore confinement in MIL-101(Cr) promoted a prolonged transition to a dynamically melted state of the hydrated salt, resulting in altered sorption properties of CaCl2.
Article
Thermodynamics
S. V. Strelova, Yu. I. Aristov, L. G. Gordeeva
Summary: Adsorption Heat Conversion (AHC) is an energy-saving and environmentally friendly alternative to conventional compression systems. The use of innovative adsorbent bed configurations, such as gluing ready-made grains to the heat exchanger surface, can enhance the power of AHC systems. Inorganic binders are found to increase the effective heat transfer coefficient, while organic binders have no effect on heat transfer. The findings provide insights into the factors controlling adsorption kinetics and offer recommendations for designing innovative bed configurations.
Article
Chemistry, Physical
Francesca Martini, Lucia Calucci, Larisa G. Gordeeva, Susanna Monti, Marina V. Solovyeva, Cheherazade Trouki, Silvia Pizzanelli
Summary: In this study, the state of water in the metal-organic framework MIL-101(Cr) was investigated using H-1 magic angle spinning (MAS) NMR, NMR relaxometry, and molecular dynamics (MD) simulations. It was found that water molecules coordinate to the open metal sites and form shells. Various measurements were used to distinguish water in the intergrain spaces from that in the intragrain mesopores, and it was determined that the water in the mesopores is structurally ordered. The findings provide insight into the behavior of water in MIL-101(Cr) and its accessibility to metal sites.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
M. A. Agafonov, E. V. Alexandrov, N. A. Artyukhova, G. E. Bekmukhamedov, V. A. Blatov, V. V. Butova, Y. M. Gayfulin, A. A. Garibyan, Z. N. Gafurov, Yu. G. Gorbunova, L. G. Gordeeva, M. S. Gruzdev, A. N. Gusev, G. L. Denisov, D. N. Dybtsev, Yu. Yu. Enakieva, A. A. Kagilev, A. O. Kantyukov, M. A. Kiskin, K. A. Kovalenko, A. M. Kolker, D. Kolokolov, Y. M. Litvinova, A. A. Lysova, N. V. Maksimchuk, Y. V. Mironov, Yu. V. Nelyubina, V. V. Novikov, V. I. Ovcharenko, A. V. Piskunov, D. M. Polyukhov, V. A. Polyakov, V. G. Ponomareva, A. S. Poryvaev, G. V. Romanenko, A. V. Soldatov, M. V. Solovyeva, A. G. Stepanov, I. V. Terekhova, O. Yu. Trofimova, V. P. Fedin, M. V. Fedin, O. A. Kholdeeva, A. Yu. Tsivadze, U. Chervonova, A. I. Cherevko, V. F. Shul'gin, E. S. Shutova, D. G. Yakhvarov
Summary: This review summarizes the current research fields of metal-organic frameworks (MOFs) developed by Russian scientific institutions and universities in the last 5-10 years, including design, synthesis, topological description, and prediction of MOF properties, development of chemical engineering and modification methods, investigation using modern physicochemical techniques, and creation of functional materials based on porous frameworks.
JOURNAL OF STRUCTURAL CHEMISTRY
(2022)
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.
