Review
Energy & Fuels
Yogendra Kumar, Jitendra S. Sangwai
Summary: Immediate measures are needed to store large quantities of anthropogenic CO2 in geological and oceanic reservoirs to address global warming and climate change. This article discusses the long-term viability, environmental sustainability, and economic potential of CO2 sequestration in the form of hydrates into oceanic and subsea sediments. The analysis shows that CO2 is denser than seawater at depths above 2800 m, providing an additional barrier for CO2 escape.
Article
Energy & Fuels
Alberto Maria Gambelli, Yan Li, Federico Rossi
Summary: This study investigates the thermodynamic and kinetic features of the methane replacement process using CO2-N-2 mixed gas. The results show that the conditions for hydrate formation in the mixed gas are gentler, with the lowest concentration of CO2 in the gaseous phase at a 50% CO2 concentration. The capture rate of N-2 and CO2 increases with decreasing N-2 concentration.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Chemistry, Physical
Yuanze Sun, Keyao Li, Yan Su, Jijun Zhao
Summary: This study provides deep insights into the stability mechanism of clathrate hydrates, specifically focusing on the crystal structures and chemical potential phase diagrams of sII hydrates encapsulated with CO2 molecules. The research shows that both partially occupied and fully occupied hydrates are thermodynamically stable under certain pressure and temperature conditions, with the equilibrium temperature decreasing as the relative CO2 chemical potential increases at the same pressure.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Feng Zhang, Hao Ni, Yi Wang, Fujun Xia, Baojun Wei, Xuefeng Liu
Summary: By using classical molecular dynamics simulations, the mechanical stability of CO2-N2 heteroclathrate hydrates (CNHHs) under uniaxial loading was investigated. The ratio of CO2 to N2 in the large and small water cages was found to have a crucial effect on the mechanical properties and fracture behaviors of CNHHs. The occupancy of small cages by CO2 was identified as a decisive factor affecting fracture position, leading to brittle or ductile fracture behavior. These findings provide insights into the deformation and fracture mechanisms of heteroclathrate hydrates and the impact of CO2 sequestration on the stability of gas hydrate reservoirs.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Energy & Fuels
Stian Almenningen, Arne Graue, Geir Ersland
Summary: This paper reviews experimental studies of CH4-CO2 exchange in CH4 hydrate-bearing sandstone core plugs, highlighting the critical role of water saturation in these processes. The results presented are important for assessing natural gas hydrate reservoirs as candidates for CO2 injection with concurrent CH4 gas production.
Article
Energy & Fuels
Jessica Pereira Pires, Alessandro da Silva Ramos, Christian Ferreira Mattos, Marcelo Ketzer, Rogerio Vescia Lourega
Summary: This study investigated the effect of different organic salts on the formation of CO2 hydrates, with pentyl L-phenylalanine hydrochloride showing successful promotion and dodecyl L-phenylalanine hydrochloride demonstrating inhibitory properties towards CO2 hydrates.
Article
Chemistry, Physical
A. Arjun, P. G. Bolhuis
Summary: Carbon dioxide hydrate is a solid composed of water cages that encapsulate CO2 molecules. Homogeneous nucleation mechanism and different cage types are influenced by temperature, providing insight into the molecular mechanisms behind polymorph formation. Transition path sampling allows for unbiased study of complex phase transformations.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Physical
Hideki Tanaka, Masakazu Matsumoto, Takuma Yagasaki
Summary: This study proposes substitution schemes for methane-carbon dioxide (CH4-CO2) hydrates and investigates the advantages and efficiencies of the substitution under three-phase and two-phase coexistence conditions. The study finds that although substitution is feasible in three-phase coexistence, its working window in temperature-pressure space is narrower compared to the two-phase coexistence condition. It also suggests a significant endothermic substitution in the medium pressure range.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Engineering, Environmental
Youngki Lee, Hyeonjin Kim, Wonhyeong Lee, Dong Woo Kang, Jae W. Lee, Yun-Ho Ahn
Summary: This review explores the potential of clathrate hydrates as a technology for CO2 capture and separation, showcasing methods to improve CO2 hydrate formation and separate CO2 from gas mixtures. It also delves into additional applications such as cold energy storage and the advantages of the CH4-CO2 replacement method.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yun-Yang Lee, Nalinda P. Wickramasinghe, Ruth Dikki, Darrell L. Jan, Burcu Gurkan
Summary: This study developed a facilitated transport membrane (FTM) using functionalized ionic liquid (IL) and poly(ionic liquid) (PIL) carriers to separate CO2 from air. The results showed that the membrane achieved efficient CO2 separation under certain conditions. Additionally, the study analyzed the effects of carrier binding to CO2, ion diffusivities, and gel glass transition temperature on membrane performance.
Article
Multidisciplinary Sciences
Shubhangi Srivastava, Ann Mary Kollemparembil, Viktoria Zettel, Timo Classen, Bernhard Gatternig, Antonio Delgado, Bernd Hitzmann
Summary: The dissociation of CO2 gas hydrates with amino acid and surfactant promoters was studied, and it was found that leucine and lecithin are effective promoters for enhancing CO2 uptake and stability in gas hydrate formation.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Robin Koch, Gregor Sailer, Sebastian Paczkowski, Stefan Pelz, Jens Poetsch, Joachim Mueller
Summary: The study evaluated the CO2 sequestration potential of combustion ashes in the aqueous phase. It found that wood ash could be suitable for carbonation processes, with the mean carbonation efficiency varying between approximately 14% and 17%. The process water was dischargeable, and the carbonated wood ash has potential for chalking, making wood ash carbonation a low-tech CO2 sequestration technology.
Article
Energy & Fuels
Yingmei Wang, Aili Niu, Wenze Jiao, Ji Chen, Peng Zhang, Jinping Li
Summary: Carbon dioxide hydrate formation rate is improved by using different accelerator systems. The combination of nanographite-TBAB and SDS-TBAB shows better performance in reducing the nucleation time. TBAB shows the best nucleation amount, formation rate, and conversion rate among the single acceleration systems.
Article
Engineering, Environmental
Chanjuan Liu, Zhen Long, Yong He, Xuebing Zhou, Deqing Liang
Summary: This study investigates the growth and storage performance of CO2 hydrates under different conditions, and finds that the water film on silica gel particles is the main factor affecting gas storage efficiency. Silica gels with 30% water saturation can achieve the highest CO2 storage capacity. In addition, it is found that SDS can increase the CO2 storage volume ratio under high water saturation and reduce the volume ratio decay in repeated tests.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Tulluru Bhavya, Burla Sai Kiran, Pinnelli S. R. Prasad
Summary: Clathrate hydrates are ideal for storing methane and carbon dioxide, but inefficient conversion and slow kinetics are major obstacles. Adding amino acids in lower dosages can accelerate the conversion process. In static conditions, l-phe and l-thr inhibit CO2 hydrate formation, while l-met and l-val act as promoters.
Article
Energy & Fuels
Federico Rossi, Mirko Filipponi, Beatrice Castellani, Stefania Bonafoni, Chaouki Ghenai
Summary: This study proposes a new method called RF-meter to measure the continuous time history of radiative forcing using ground measurements, astronomical equations, and satellite calibration. The proposed method aims to achieve a more accurate assessment of CO2 compensation and includes a test facility to validate the procedure.
Article
Green & Sustainable Science & Technology
Alberto Maria Gambelli, Mirko Filipponi, Federico Rossi
Summary: This study investigates the formation of carbon dioxide hydrates in natural silica-based porous medium and fresh water through experiments. The results show that the persistence of the memory effect is weak at temperatures slightly above 25 degrees C and ice formation competes with hydrates. By evaluating thermodynamic parameters, gas consumption, and rate constant, some conclusions about the differences between measured and real equilibrium conditions for the system are drawn.
Article
Energy & Fuels
Alberto Maria Gambelli, Federico Rossi, Franco Cotana
Summary: This article proposes the use of gas hydrate production for hydrogen storage and compares it with traditional methods in terms of energy costs, energy density, environmental sustainability, safety, ease of transport, future perspectives, and innovation level.
Article
Energy & Fuels
Giulio Morelli, Teresa Pescara, Alessia Greco, Pia Montanucci, Giuseppe Basta, Federico Rossi, Riccardo Calafiore, Alberto Maria Gambelli
Summary: The biofabrication of 3D scaffolds using 3D printers and cell-containing bioinks shows great promise. Various materials and bioinks are being tested to ensure cell viability and printability. This research aims to apply this methodology on a laboratory scale, lowering costs and energy impacts, while maintaining high precision and suitability for research purposes. The biomimetic scaffold made of human Umbilical Cord Matrix Stem Cells (hUCMS), cellulose, and alginate showed stable and easily printable structure, with high cell viability.
Article
Energy & Fuels
Beatrice Castellani
Summary: A countermeasure to global warming is the removal of high CO2 amounts from the atmosphere and storing it in stable carbon storage sites. CO2 storage as clathrate hydrates in marine environments is an innovative approach that shows potential. This article discusses the positioning of direct hydrate-based CO2 storage among traditional geological options and the development of a reliable, stable, durable, efficient, and environmentally friendly hydrate-based CO2 storage pathway.
Editorial Material
Engineering, Chemical
Beatrice Castellani, Andrea Nicolini
Article
Acoustics
Franco Cotana, Francesco Asdrubali, Giulio Arcangeli, Sergio Luzzi, Giampietro Ricci, Lucia Busa, Michele Goretti, Alfonso Antonio Vincenzo Tortorella, Paola Pulella, Piergiovanni Domenighini, Valeria Gambacorta, Claudia Guattari, Federica Cirimbilli, Andrea Nicolini, Pietro Nataletti, Diego Annesi, Filippo Sanjust, Luigi Cerini
Summary: Noise exposure can have auditory and extra-auditory effects, impacting both teachers' and students' cognitive and neurobehavioral aspects. A Protocol was developed to assess the acoustic characteristics and identify noise sources in various school environments, revealing that most spaces do not meet Italian regulations. High noise levels were reported in laboratories, gymnasiums, and canteens, leading to decreased concentration, fatigue, boredom, and headaches in students.
Article
Energy & Fuels
Federico Rossi, Beatrice Castellani, Aron Pazzaglia, Alessia Di Giuseppe, Stefania Bonafoni, Mirko Filipponi, Andrea Presciutti, Franco Cotana
Summary: Increasing terrestrial albedo is an important strategy to mitigate global warming by reducing radiative forcing. A new procedure called RF-meter has been proposed to measure the continuous time history of radiative forcing due to albedo increase and calculate the CO2 offset potential. This method was tested on a high-albedo surface treated with high-reflective paint, showing a significant reduction in CO2 emissions.
Article
Energy & Fuels
Alessia Di Giuseppe, Marta Cardinali, Beatrice Castellani, Mirko Filipponi, Andrea Nicolini, Federico Rossi
Summary: The latest research suggests the use of retro-reflective (RR) materials as innovative coating solutions for building envelopes and urban surfaces. This study investigates the performance of RR materials after outdoor aging and soiling during summer 2021 in Perugia, Italy. RR coatings were made using different glass beads and investigated in terms of their optic performance.
Article
Engineering, Environmental
Aron Pazzaglia, Mattia Gelosia, Tommaso Giannoni, Giacomo Fabbrizi, Andrea Nicolini, Beatrice Castellani
Summary: Wood waste is a valuable resource for producing new materials and energy recovery. This study explored the use of organosolv treatment on wood waste to produce cellulose pulp for containerboard manufacturing. The one-pot approach involved microwave heating the waste in an acidified ethanol-water solution, resulting in high cellulose content pulp and recovered ethanol. The study highlights the potential for industrial symbiosis between recycling centers and paper mills to enhance the sustainability of wood waste recycling.
Editorial Material
Green & Sustainable Science & Technology
Francesco Paolo La Mantia, Beatrice Castellani
Article
Engineering, Environmental
Heejung Jung, Juyun Kim, Yuta Inaba, Tasnuva T. Moutushi, Marco J. Castaldi, Alan C. West, Scott Banta
Summary: This study demonstrates the enhancement of copper binding ability in Acidithiobacillus ferrooxidans cells through overexpression of the AcoP protein. The genetically engineered cells showed improved copper recovery and selectivity from unconventional feedstocks, indicating the potential for effective reclamation of critical materials in emerging applications.
ACS ES&T ENGINEERING
(2023)
Review
Energy & Fuels
Alberto Maria Gambelli, Federico Rossi
Summary: This review article provides an overview of the main applications of gas hydrates in industrial processes, discussing their advantages and limitations. Various technologies, including gas storage, energy storage, desalination, and wastewater treatment, are described in detail. The article also focuses on the use of additives and small-chain hydrocarbons to improve the efficiency and competitiveness of hydrate-based processes.
Article
Thermodynamics
Hai Zhao, Puzhen Gao, Xiaochang Li, Ruifeng Tian, Hongyang Wei, Sichao Tan
Summary: This study numerically investigates the interaction between flow-induced vibration and forced convection heat transfer in a tube bundle. The results show that the impact of flow-induced vibration on heat transfer varies in different flow velocity regions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rohit Chintala, Jon Winkler, Sugirdhalakshmi Ramaraj, Xin Jin
Summary: The current state of fault detection and diagnosis for residential air-conditioning systems is expensive and not suitable for widespread implementation. This paper proposes a cost-effective solution by introducing an automated fault detection algorithm as a screening step before more expensive tests can be conducted. The algorithm uses home thermostats and local weather information to identify thermodynamic parameters and detect high-impact air-conditioning faults.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
A. Azimi, N. Basiri, M. Eslami
Summary: This paper presents a novel optimization algorithm for improving the water-film cooling system of photovoltaic panels, resulting in a significant increase in net energy generation.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Duc-Thuan Phung, Chin-Hsiang Cheng
Summary: In this study, a novel CFDMD model is used to analyze and investigate the behavior of thermal-lag engines (TLE). The study shows that the CFDMD model effectively captures the thermodynamic behavior of the working gas and the dynamic behavior of the engine mechanism. Additionally, the study explores the temporal evolution of engine speed and the influence of various parameters on shaft power and brake thermal efficiency. The research also reveals the existence of a thermal-lag phenomenon in TLE.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Haiying Yang, Yinjie Shen, Lin Li, Yichen Pan, Ping Yang
Summary: The purpose of this article is to find a measure to improve the interfacial thermal transfer of graphene/silicon heterojunction. Through molecular dynamics simulation, it is found that surface modification can significantly reduce the thermal resistance, thereby improving the thermal conductivity of the graphene/silicon interface.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Qiong Wu, Yancheng Wang, Haonan Zhou, Xingye Qiu, Deqing Mei
Summary: This article introduces a visible methanol steam reforming microreactor, which uses an optical crystal as an observation window and measures the reaction temperature in real-time using infrared thermography. The results show that under lower oxygen to carbon ratio conditions, the microreactor has a higher heating rate and a stable gradient in temperature distribution.
APPLIED THERMAL ENGINEERING
(2024)
Review
Thermodynamics
Giulia Manco, Umberto Tesio, Elisa Guelpa, Vittorio Verda
Summary: In the past decade, there has been a growing interest in studying energy systems for the combined management of power vectors. Most of the published works focus on finding the optimal design and operations of Multi Energy Systems (MES). However, for newcomers to this field, understanding how to achieve the desired optimization details while controlling computational expenses can be challenging and time-consuming. This paper presents a novel approach to analyzing the existing literature on MES, with the aim of guiding practical development of MES optimization. Through the discussion of six case studies, the authors provide a mathematical formulation as a reference for building the model and emphasize the impact of different aspects on the problem nature and solver selection. In addition, the paper also discusses the different approaches used in the literature for incorporating thermal networks and storage in the optimization of multi-energy systems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xuepeng Yuan, Caiman Yan, Yunxian Huang, Yong Tang, Shiwei Zhang, Gong Chen
Summary: In this study, a multi-scale microgroove wick (MSMGW) was developed by laser irradiation, which demonstrated superior capillary performance. The surface morphology and performance of the wick were affected by laser scan pitch, laser power, repetition frequency, and scanning speed. The MSMGW showed optimal capillary performance in alumina material and DI water as the working fluid.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Maofei Mei, Feng Hu, Chong Han
Summary: This paper proposes an effective local search method based on detection of droplet boundaries for understanding the dynamic process of droplet growth during dropwise condensation. The method is validated by comparing with experimental data. The present simulation provides an effective approach to more accurately predict the nucleation site density in future studies.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Zhenhua Ren, Xiangjin Meng, Xingang Qi, Hui Jin, Yunan Chen, Bin Chen, Liejin Guo
Summary: This paper investigates the heat transfer mechanism and factors influencing thermal radiation in the process of supercritical water gasification (SCWG) of coal, and proposes a comprehensive numerical model to simulate the process. Experimental validation results show that thermal radiation accounts for a significant proportion of the total heat exchange in the reactor and a large amount of radiant energy exists in the important spectral range of supercritical water. Enhancing radiative heat transfer can effectively increase the temperature of the reaction medium and the gasification rate.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Mauro Abela, Mauro Mameli, Sauro Filippeschi, Brent S. Taft
Summary: Pulsating Heat Pipes (PHP) are passive two-phase heat transfer devices with a simple structure and high heat transfer capabilities. The actual unpredictability of their dynamic behavior during startup and thermal crisis hinders their large-scale application. An experimental apparatus is designed to investigate these phenomena systematically. The results show that increasing the number of evaporator sections and condenser temperature improves the performance of PHP. The condenser temperature also affects the initial liquid phase distribution and startup time.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Ke Gan, Ruilian Li, Yi Zheng, Hui Xu, Ying Gao, Jiajie Qian, Ziming Wei, Bin Kong, Hong Zhang
Summary: A 3-dimensional enhanced heat pipe radiator has been developed to improve heat dissipation and temperature uniformity in cooling high-power electronic components. Experimental results show that the radiator has superior heat transfer performance compared to a conventional aluminum fin radiator under different heating powers and wind speed conditions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xinyi Zhang, Shuzhong Wang, Daihui Jiang, Zhiqiang Wu
Summary: This study focuses on recovering waste heat from blast furnace slag using dry centrifugal pelletizing technology. A comprehensive two-dimensional model was developed to analyze heat transfer dynamics and investigate factors influencing heat exchange efficiency. The findings have important implications for optimizing waste heat recovery and ensuring safe operations.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xincheng Wu, An Zou, Qiang Zhang, Zhaoguang Wang
Summary: The boosting heat generation rate of high-performance processors is challenging traditional cooling techniques. This study proposes a combined design of active jet intermittency and passive surface modification to enhance heat transfer.
APPLIED THERMAL ENGINEERING
(2024)
