Review
Chemistry, Multidisciplinary
Akram Entezari, Oladapo Christopher Esan, Xiaohui Yan, Ruzhu Wang, Liang An
Summary: Freshwater scarcity is a global challenge affecting two-thirds of the global population. Sorption-based atmospheric water harvesting (SAWH) is an efficient strategy that provides a self-sustaining source of freshwater for various applications.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Fangfang Deng, Zhihui Chen, Chenxi Wang, Chengjie Xiang, Primoz Poredos, Ruzhu Wang
Summary: This review introduces the recent development of hygroscopic porous polymers (HPPs) as next-generation sorbents in terms of sorption mechanism, performance, and application. It also highlights the issues regarding sorption-desorption performance and system structure design of HPPs, and proposes research routes for developing next-generation HPP-based SAWH systems.
Review
Engineering, Environmental
Kaijie Yang, Tingting Pan, Qiong Lei, Xinglong Dong, Qingpeng Cheng, Yu Han
Summary: This review summarizes the latest progress in sorption-based atmospheric water harvesting (SAWH) technology, focusing on sorbent material design and system optimization. The article introduces water sorption mechanisms on different sorbent materials, discusses the properties and performances of various sorbents, and analyzes the influences of mass and heat transport on system performance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Youhong Guo, Weixin Guan, Chuxin Lei, Hengyi Lu, Wen Shi, Guihua Yu
Summary: By synthesizing a hygroscopic polymer film composed of renewable biomass, high water uptake at low relative humidity can be achieved, enabling the extraction of atmospheric water and addressing the global water crisis.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Renyuan Li, Wenbin Wang, Yifeng Shi, Chang-ting Wang, Peng Wang
Summary: Water-based evaporative cooling technology offers a sustainable and low-cost solution to meet the increasing global cooling demand. This review provides an overview of the state-of-the-art material design and engineering in water-based evaporative cooling, including direct evaporative cooling, cyclic sorption-driven liquid water evaporative cooling (CSD-LWEC), and atmospheric water harvesting-based evaporative cooling (AWH-EC). The unique requirements for sorbent materials in CSD-LWEC and AWH-EC are highlighted, along with challenges and future prospects for improving water-based evaporative cooling performance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuai Zhang, Jingru Fu, Saikat Das, Kaiqi Ye, Weidong Zhu, Teng Ben
Summary: In this study, a new crystalline porous organic salt material (CPOS-6) possessing a dual hydrogen bond system was synthesized and its applicability in atmospheric water harvesting (AWH) was verified for the first time. Unlike other reported CPOSs, CPOS-6 exhibits an S-shaped water sorption isotherm due to the presence of the dual hydrogen bond system. Under simulated drought conditions in Xinjiang Uygur Autonomous Region, CPOS-6 demonstrates long-term water adsorption-desorption cycling stability, low water desorption temperature, and ultrarapid adsorption-desorption kinetics. The results confirm that CPOS-6 is an effective sorbent material for AWH.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Fan Luo, Xianghui Liang, Weicheng Chen, Shuangfeng Wang, Xuenong Gao, Zhengguo Zhang, Yutang Fang
Summary: This work presents an integrated design of a multifunctional monolithic adsorbent for atmospheric water harvesting. The hybridized MOF with high specific surface area and pore volume exhibits superior moisture adsorption capacity, especially in arid environments. The inclusion of a polymeric photothermal layer enables high solar thermal conversion and assists in the release of collected water. The designed monolithic adsorbent achieves an impressive outdoor water production, demonstrating its potential for safe, sustainable and scalable atmospheric water collection technology.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yue Hu, Yuqi Wang, Zhou Fang, Bing Yao, Zhizhen Ye, Xinsheng Peng
Summary: The study presents a novel strategy for in situ fabrication of calcium chloride decorated MOF-derived porous sorbents with high water adsorption capacity, outstanding photothermal performance, and rapid water uptake-release kinetics, which shows great potential for water harvesting applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Biotechnology & Applied Microbiology
Nilofar Asim, Marzieh Badiei, Mohammad A. Alghoul, Masita Mohammad, Nurul Asma Samsudin, Nowshad Amin, Kamaruzzaman Sopian
Summary: Air water-harvesting systems are important for addressing global water scarcity, with sorbent-based systems currently being the most desirable choice. However, there is a lack of fundamental research in this field and limited availability of commercial instruments. Further studies on sorbent stability, life cycle, water absorbency, and heat and mass transport are essential for advancing these technologies.
REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Ankit Nagar, Ramesh Kumar, Pillalamarri Srikrishnarka, Tiju Thomas, Thalappil Pradeep
Summary: Despite the increasing demand for active cooling-based atmospheric water generators, they remain energy intensive and inefficient. This study introduces a scalable dual-nanostructured hierarchical surface for improving water collection efficiency through enhanced condensation. Lab experiments showed significant improvement in latent heat transfer coefficient compared to conventional surfaces, indicating the potential for industrial-scale application.
ACS APPLIED NANO MATERIALS
(2021)
Article
Thermodynamics
Wenwen Wang, Tianyu Yang, Quanwen Pan, Yanjun Dai, Ruzhu Wang, Tianshu Ge
Summary: Recent research has shown that sorption-based atmospheric water harvesting (SAWH) is an effective and low-cost method to address the water crisis. However, the low daily water productivity of devices has limited their practical use. In this study, we developed a continuous SAWH device with optimized sorbent bed structure, which achieved a high water productivity and showed promise for personal/household utilization in islands.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Polymer Science
Jiawen He, Haojie Yu, Li Wang, Jian Yang, Yanhui Zhang, Wenbing Huang, Chenguang Ouyang
Summary: This review discusses the use of polymeric hydrogels for atmospheric water harvesting (AWH), including the mechanism of water sorption, fabrication methods, and strategies for optimizing the structure of hydrogels. The extended applications of hygroscopic photothermal hydrogels, such as agricultural irrigation and dehumidification, are also explored. The challenges and prospects of using polymeric hydrogels for AWH are summarized.
EUROPEAN POLYMER JOURNAL
(2024)
Article
Chemistry, Multidisciplinary
Xinyue Liu, Lenan Zhang, Bachir El Fil, Carlos D. Diaz-Marin, Yang Zhong, Xiangyu Li, Shaoting Lin, Evelyn N. Wang
Summary: Water vapor sorption plays a crucial role in various applications, but conventional materials tend to capture less water vapor at higher temperatures. However, a recent study reports an inverse temperature dependence of water sorption in poly(ethylene glycol) (PEG) hydrogels, where the water uptake can be doubled with increasing temperature from 25 to 50 degrees C. This unusual phenomenon is attributed to the first-order phase transformation of PEG structures, providing insights for developing new materials for moisture and heat harnessing.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Nan Zhang, Haojie Gu, Keyu Lu, Shimeng Ye, Wanghuai Xu, Huanxi Zheng, Yuxin Song, Chaoran Liu, Jiwei Jiao, Zuankai Wang, Xiaofeng Zhou
Summary: SE-DEG is a novel and universal single electrode droplet-based electricity generator that can convert water droplet kinetic energy into electricity power on any surfaces. Its special configuration allows for more efficient utilization of triboelectric charges compared to traditional TENG.
Review
Thermodynamics
Zhihui Chen, Jinwen Shi, Yueqi Li, Benchi Ma, Xueli Yan, Maochang Liu, Hui Jin, Dong Li, Dengwei Jing, Liejin Guo
Summary: This review paper provides an overview of the basic principles, materials, and devices of energy harvesting and conversion coupled with atmospheric water gathering technology, as well as discusses potential strategies for promoting efficiency and performance, highlighting the need to overcome challenges for further development.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Thermodynamics
Xuefeng Zhang, Yicong Tian, Liwei Wang, Bo Zhang
Summary: This paper investigates and compares the regulation characteristics of bi-halide sorbents composed of CaCl2 and MnCl2 in different mixing ratios in the sorption energy storage system. Simulation and experimental results show that increasing the ratio of MnCl2 can effectively improve the performance of the sorption system and make the energy output more concentrated and stable.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Shao-Fei Wu, Li-Wei Wang, Chen Zhang, Bo Zhang
Summary: This study proposes a solar-driven flexible seasonal thermal management strategy based on the MnCl2-CaCl2-NH3 cascading cycle for indoor summer refrigeration and winter heating with seasonal energy storage. Experimental results demonstrate high cooling capacity and performance even under high temperature conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ziya Zeng, Bingchen Zhao, Ruzhu Wang
Summary: This review summarizes the recent advances in adsorption thermal storage, focusing on the design of adsorbent materials and the optimization of system configurations. The application-oriented selection principles of diversified materials and system cycles are introduced, providing practical guidelines for overall design in various application scenarios.
ENERGY STORAGE MATERIALS
(2023)
Article
Thermodynamics
Jingwei Chao, Jiaxing Xu, Taisen Yan, Shizhao Xiang, Zhaoyuan Bai, Ruzhu Wang, Tingxian Li
Summary: Cold energy storage is important for thermal management and energy utilization. Sorption thermal battery (STB) has advantages over conventional technologies, but suffers from low-power-density energy storage. This study proposes a novel tube-free evaporator to reduce thermal resistance and accelerate sorption rate in STB, leading to improved cold storage performance.
Article
Thermodynamics
Chenxi Wang, Hao Zou, Shuai Du, Danfeng Huang, Ruzhu Wang
Summary: Greenhouses are used to create a protected growing environment for crops. This research proposes a climate control system that combines solid sorption and sensible thermal storage to deal with the problems caused by cold air temperature and high humidity in winter climates. The experiments show that the system can effectively increase nocturnal air temperature, decrease relative humidity, and reduce humidity ratio.
Article
Thermodynamics
Jing Xu, Wei Zhang, Zhiliang Liu, Quanwen Pan, Ruzhu Wang, Tianshu Ge
Summary: Current adsorption refrigeration systems are limited in their ability to produce multiple cooling outputs. This paper introduces a hybrid adsorption refrigeration system that can provide both cold water and dry air through efficient desiccant coated heat exchangers. Experimental results show that the hybrid system can simultaneously output cold water and dry air with a heat source temperature of 50-80 degrees C. The system achieves its maximum cooling performance and efficiency under certain temperature conditions.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
P. Ganesan, Trygve M. Eikevik, Khalid Hamid, Ruzhu Wang, Hongzhi Yan
Summary: This study investigates the production of high-temperature water using a two-stage cascade refrigeration system in a high-temperature heat pump (HTHP). The system utilizes mixed natural zeotropic refrigerants and water as a heat source, achieving high performance and heating capacity.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
Article
Thermodynamics
Xiangyu Xie, Shengxiang Jin, Peng Gao, Weidong Wu, Qiguo Yang, Liwei Wang
Summary: A novel ammonia-based hybrid chemisorption-compression high-temperature heat pump is designed to upgrade waste heat to high-temperature heat, with the potential for significantly improving coefficient of performance (COP).
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Bo Zhang, Zhen Li, Liwei Wang
Summary: A novel strategy using a cellulose nanofiber-based skeleton was developed to rapidly synthesize form-stable phase change composites (PCCs) with desirable phase change enthalpy, high enthalpy efficiency, superb mechanical and thermal stability, and mitigated supercooling. The introduction of expanded graphite into the matrix also enhanced the applicability to hydrophobic PCMs and improved the thermal conductivity of the PCCs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Chen Zhang, Tingyu Su, Xinqi Zhang, Duoyong Zhang, Tao Xuan, Liwei Wang
Summary: A series of porous core-membrane microstructured nanomaterials, consisting of a deep eutectic solvent (DES) membrane and porous MOF-808 core, are introduced for carbon dioxide capture. The sorption mechanism involves diffusion, physisorption, and chemisorption. The sorption performance of DESs is significantly enhanced by using MOF-808 as the porous core, improving diffusion interactions.
Article
Thermodynamics
Haoran Liu, Jiaqi Yu, Ruzhu Wang
Summary: In portable electronic devices, both the junction temperature and skin temperature need to be controlled. This paper proposes a convolution-based method to generate dynamic compact thermal models for predicting skin temperature. A linear fitting model is also proposed for real-time prediction of skin temperature in laptops. Experimental and simulation results show great potential of this modeling method in thermal design and control optimization.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Green & Sustainable Science & Technology
Ziya Zeng, Bingchen Zhao, Ruzhu Wang
Summary: Thermal energy storage is an important strategy for energy saving and utilization. Latent heat storage using phase change materials has great potential for efficient heat storage and thermal management. A high energy-storage-density and power-density latent heat storage unit is developed through the compression-induced assembly of expanded graphite based stearic acid composites and macro encapsulation method using polyethylene shells. The resulting heat storage unit shows excellent performance in terms of phase change enthalpy, thermal conductivity, form-stability, and power-density. A proof-of-concept prototype of the packed-bed latent-heat-storage system demonstrates its feasibility in fast heat charging/discharging operations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Lurong Ge, Yaohui Feng, Yanan Xue, Yanjun Dai, Ruzhu Wang, Tianshu Ge
Summary: Metal-organic frameworks (MOFs) show potential for indoor humidity regulation due to their steep water uptake and moderate regeneration temperature. However, current methods for enhancing their performance face challenges of corrosion and instability. In this study, a template-guided tuning strategy is proposed, resulting in a binary nanocomposite with improved properties. The nanocomposite exhibits a higher specific surface area and water uptake compared to the parent material, MIL-101(Cr). Furthermore, the nanocomposite demonstrates efficient and stable humidity regulation driven by sunlight with minimal energy input.
Review
Chemistry, Multidisciplinary
Zhifeng Hu, Fuqiang Chu, He Shan, Xiaomin Wu, Zhichao Dong, Ruzhu Wang
Summary: This review comprehensively summarizes the progress on phenomena, mechanisms, regulations, and applications of droplet impact on superhydrophobic surfaces. The focal points are droplet contact and rebound, and various applications are classified according to their requirements. The review also points out the remaining challenges and outlines future research directions.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
He Shan, Ziya Zeng, Xinge Yang, Primoz Poredos, Jie Yu, Zhihui Chen, Ruzhu Wang
Summary: This study presents a design framework for utilizing hygroscopic gels for atmospheric water sorption and thermal energy storage. A hygroscopic gel with high energy density and water sorption capacity was developed and integrated into a multifunctional device, achieving efficient heat storage and liquid water production.
ACS ENERGY LETTERS
(2023)
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.
