Article
Mathematics, Interdisciplinary Applications
Ivan Sudakow, Elena Savenkova, Dmitri Kondrashov, Sergey A. Vakulenko, Elena Sashina
Summary: This article proposes a conceptual nonlinear model that couples an atmospheric dynamics model with the population structure of microbial communities to study how changes in the microbial community may affect greenhouse gas emissions from permafrost and climate temperature dynamics.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Environmental Sciences
Carla Perez-Mon, Beat Stierli, Michael Ploetze, Beat Frey
Summary: Global warming in mid-latitude alpine regions is affecting the permafrost microbiome, leading to changes in microbial abundance and composition, potentially impacting soil carbon dynamics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Christoph Keuschnig, Catherine Larose, Mario Rudner, Argus Pesqueda, Stephane Doleac, Bo Elberling, Robert G. Bjork, Leif Klemedtsson, Mats P. Bjorkman
Summary: Thawing permafrost soils in Arctic regions are predicted to release 50 to 250 billion tons of carbon by 2100. Most of this carbon comes from carbon-rich wetlands, but 71% is stored in faster-thawing mineral soils, making ecosystems near the outer boundaries of permafrost regions particularly vulnerable. This study examines the long-term changes following thaw and drainage, showing a significant decrease in CH4 emissions and comparable CO2 emissions. The findings highlight the importance of considering hydrological, vegetation, and microbial factors in studying the long-term effects of climate change on CH4 emissions.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
P. W. J. Glover, M. Blouin
Summary: Radon is a natural radioactive gas that accounts for approximately one in 10 lung cancer deaths, with higher death rates in sub-Arctic communities. Permafrost acts as an effective barrier, reducing radon exposure to a tenth of the background level, but thawing of permafrost due to climate change can increase radon levels in buildings with basements. Modeling shows that the increase in radon can remain above the threshold for up to 7 years depending on permafrost depth and thawing speed. This new information highlights the potential health risks of radon exposure as a result of climate change thawing of permafrost in sub-Arctic regions.
Article
Biodiversity Conservation
Yanyu Song, Lei Jiang, Changchun Song, Xianwei Wang, Xiuyan Ma, Hao Zhang, Wenwen Tan, Jinli Gao, Aixin Hou
Summary: Soil microbes and enzymes in permafrost peatland are sensitive to temperature changes, with long-term warming leading to increased microbial abundance, accelerated carbon cycling, and enhanced nitrogen availability. The study results provide new insights into the response of plant-soil-microbe interactions in permafrost peatlands to climate change.
ECOLOGICAL INDICATORS
(2021)
Article
Energy & Fuels
Tianyi Hua, Maisha T. Ahmad, Tenzin Choezin, Ryan L. Hartman
Summary: This study examines the influence of subtle temperature fluctuations on the dynamic stability of methane hydrate deposits, showing that bioreaction kinetics is dominated by endothermic methanogenic metabolism with a fragile tolerance to temperature increases. Feather duster worms stabilize the hydrates by selectively consuming methanotrophs, preventing potential system overtake by their exothermic metabolism. The research suggests that historical ocean temperature records and gas hydrate inventory estimates indicate risks to hydrate deposits as deep as 560 m below sea level, with the stability zone expected to retreat deeper as ocean temperatures rise.
Article
Geography, Physical
Sizhong Yang, Susanne Liebner, Josefine Walz, Christian Knoblauch, Till L. Bornemann, Alexander J. Probst, Dirk Wagner, Mike S. M. Jetten, Michiel H. in 't Zandt
Summary: Permafrost-affected soils in the Arctic store a significant amount of soil organic carbon, which becomes vulnerable to microbial decomposition with PF warming. This study showed that long-term warming led to continuous greenhouse gas production, along with a decrease in major metabolic pathway genes and an increase in carbohydrate-active enzyme classes, indicating a shift in organic matter degradation processes.
PERMAFROST AND PERIGLACIAL PROCESSES
(2021)
Article
Engineering, Geological
Guoan Yin, Jing Luo, Fujun Niu, Zhanju Lin, Minghao Liu
Summary: This study used multiple machine learning models to explore factors controlling thermokarst landslides (TL) on the Qinghai-Tibet Plateau (QTP). The research found that summer air temperature and rainfall are the most important factors affecting the occurrence and distribution of TLs. Additionally, the study revealed that approximately 1.4% of the QTP land is classified as having high susceptibility to TLs, which is expected to increase in response to future climate change.
Article
Multidisciplinary Sciences
Scott L. Painter, Ethan T. Coon, Ahmad Jan Khattak, Julie D. Jastrow
Summary: We used a soil ice content model to study the potential risk of abrupt permafrost thaw triggered by melting ground ice in a warming Arctic. Simulations of a specific site in Alaska showed subsidence of 63 cm from 2006 to 2100 in a strong-warming climate scenario. The increase in active layer thickness due to permafrost thaw was accelerated by subsidence, but the effect was relatively small.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Multidisciplinary Sciences
Ken D. Tape, Jason A. Clark, Benjamin M. Jones, Seth Kantner, Benjamin Gaglioti, Guido Grosse, Ingmar Nitze
Summary: Recent findings show that beavers have moved into the Arctic tundra and are controlling surface water dynamics through the construction of beaver ponds. The rapid expansion of beaver engineering is important for understanding permafrost thawing and the exacerbation of climate change effects.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Katherine Landers, Dmitry Streletskiy
Summary: The Arctic's rapid warming poses a major threat to the underlying permafrost, resulting in extensive damage to infrastructure and putting communities and industries at risk. Lack of standardized construction guidelines, limited monitoring systems, and low numbers of professionals are major constraints limiting the region's resilience. To minimize the impacts of permafrost degradation, it is necessary to refine building practices, implement monitoring systems, develop climate projections, and integrate local knowledge.
Article
Environmental Sciences
Nicholas J. Bouskill, Zelalem Mekonnen, Qing Zhu, Robert Grant, William J. Riley
Summary: Following tundra fires, bacterial colonization of soil previously occupied by slower-growing fungi enhances nitrogen cycling.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Engineering, Environmental
Xiujuan Chen, Guohe Huang, Sichen Gao, Yinghui Wu
Summary: Permafrost, an important potential sink of airborne MPs, will severely degrade and thaw under climate change, potentially affecting global MP cycling. These potential effects have not been addressed in previous MP-related research.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Environmental Sciences
Prashant Baral, Simon Allen, Jakob F. Steiner, Tika R. Gurung, Graham Mcdowell
Summary: Changing climatic conditions in High Mountain Asia have notable effects on mountain permafrost, especially in the Qinghai-Tibetan Plateau. The extent and characteristics of permafrost in the Hindu Kush Himalaya are limited. Studies reveal a warming trend, resulting in increased landslide activity, effects on streamflow, soil saturation, and vegetation change. Adaptation strategies are mainly documented in infrastructure projects and animal herding in China. Further research is needed on hazards related to changing permafrost and its impact on ecosystems and livelihoods.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Thomas G. Sim, Graeme T. Swindles, Paul J. Morris, Andy J. Baird, Claire L. Cooper, Angela Gallego-Sala, Dan J. Charman, Thomas P. Roland, Werner Borken, Donal J. Mullan, Marco A. Aquino-Lopez, Mariusz Galka
Summary: Permafrost peatlands in high-latitude regions store significant amounts of soil organic carbon but are now experiencing rapid warming causing permafrost thaw and carbon release. Recent research in northern Sweden shows that different peatlands are responding differently to climate change, with some becoming wetter leading to reduced carbon sequestration while others becoming drier without a clear relationship. Bryophyte-dominated vegetation in these peatlands demonstrates resistance and in some cases, resilience, to climatic and hydrological shifts.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Natalia Grechishcheva, Alexandra Kuchierskaya, Anton Semenov, Dmitry Kuryashov, Irakli Meritsidi, Rifat Mingazov
Summary: This paper examines the dispersing ability of three proprietary dispersants and proposes a modification to reduce errors when dealing with heavy crude oil. The study finds that the dispersants have higher effectiveness for less dense oil and suggests adding oil by weight instead of volume to improve accuracy.
JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT
(2022)
Article
Engineering, Environmental
Yinghua Gong, Rais Mendgaziev, Wei Hu, Yingzhou Li, Zhi Li, Andrey S. Stoporev, Andrey Yu Manakov, Vladimir A. Vinokurov, Tianduo Li, Anton P. Semenov
Summary: This study systematically investigates urea as a promising and green gas hydrate inhibitor. Urea was found to decrease the equilibrium temperature of hydrates formation, acting as a thermodynamic hydrate inhibitor. Despite having medium anti-hydrate activity, urea is considered safer for the environment and more cost-effective compared to other compounds. Its application is justified if only a slight shift in the hydrate equilibrium curve is required.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Anton P. Semenov, Rais Mendgaziev, Andrey S. Stoporev, Vladimir A. Istomin, Daria Sergeeva, Timur B. Tulegenov, Vladimir A. Vinokurov
Summary: This paper investigates the potential of dimethyl sulfoxide (DMSO) as an inhibitor of gas hydrates. Equilibrium conditions of CO2 hydrates were measured at different temperatures and DMSO concentrations, revealing that DMSO reduces the thermodynamic stability of CO2 hydrate and exhibits stronger inhibition activity in water solution compared to lower alcohols. The study also demonstrates the thermodynamic coherence of the new hydrate equilibrium data and identifies the presence of sI hydrate, crystalline ice Ih, and solid CO2 phases. Overall, DMSO can be considered an effective thermodynamic inhibitor for CO2 hydrate formation, surpassing the activity of alcohol THIs within a specific range.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Multidisciplinary Sciences
Anton P. Semenov, Rais I. Mendgaziev, Andrey S. Stoporev, Vladimir A. Istomin, Daria V. Sergeeva, Timur B. Tulegenov, Vladimir A. Vinokurov
Summary: This study investigated the effects of organic solute concentration on the V-Lw-H three-phase equilibrium in the CO2 - H2O - DMSO system. The equilibrium conditions of CO2 hydrate were determined by measuring temperature and pressure, and the CO2 gas fugacity and Reynolds number were calculated. Regression analysis was used to approximate the relationship between equilibrium pressure and temperature, and the correlation between CO2 hydrate equilibrium temperature suppression and CO2 gas fugacity was studied.
Article
Multidisciplinary Sciences
Anton P. Semenov, Yinghua Gong, Vladimir I. Medvedev, Andrey S. Stoporev, Vladimir A. Istomin, Vladimir A. Vinokurov, Tianduo Li
Summary: The three-phase equilibrium conditions of vapor-aqueous solution-gas hydrate coexistence for CH4-H2O-organic thermodynamic inhibitor (THI) systems were determined experimentally. Hydrate equilibrium measurements were conducted for systems with methanol (MeOH), monoethylene glycol (MEG), and diethylene glycol (DEG). The temperature and pressure at the point of complete dissociation of methane hydrate were determined through constant-rate heating and vigorous mixing in a high-pressure vessel. The coefficients of empirical equations accurately describe the hydrate equilibrium conditions for the studied systems, taking into account the effect of THI concentration and pressure.
Article
Engineering, Chemical
Anton P. Semenov, Yinghua Gong, Vladimir I. Medvedev, Andrey S. Stoporev, Vladimir A. Istomin, Vladimir A. Vinokurov, Tianduo Li
Summary: Gas hydrate inhibition is an important topic in flow assurance. The hybrid inhibition strategy involving kinetic hydrate inhibitors (KHIs) and thermodynamic hydrate inhibitors (THIs) has been developed through extensive experimental studies. Methane hydrate equilibrium conditions were determined for aqueous solutions of methanol, MEG, and DEG (<50 mass%). The kinetics of methane hydrate nucleation and growth were studied for aqueous solutions of commercial vinyl lactam KHI and its blends with alcohols. A blend of KHI and MEG is optimal for hybrid inhibition, showing enhanced delay of gas uptake and reduced rate of methane hydrate growth.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
U. Zh. Mirzakimov, M. E. Semenov, D. S. Kolotova, A. P. Semenov, A. S. Stoporev
Summary: The study examined the effect of fish gelatin and sodium alginate on the nucleation of methane-propane hydrate. It was found that sodium alginate had no significant impact on hydrate formation, while gelatin showed inhibiting activity. The results also indicated antagonism in the kinetic inhibition of methane-propane hydrate by mixtures of the two polymers. Further investigation is needed to understand the mechanism and develop mixed reagents for hydrate formation control.
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2023)
Article
Polymer Science
Andrey Stoporev, Rail Kadyrov, Tatyana Adamova, Evgeny Statsenko, Thanh Hung Nguyen, Murtazali Yarakhmedov, Anton Semenov, Andrey Manakov
Summary: Polymeric models prepared with a 3D printer were used to study methane hydrate formation. Different plastics were tested, and their porosity volumes were analyzed using X-ray tomography. The type of polymer used was found to have a significant impact on enhancing hydrate formation.
Article
Business, Finance
Galyna Nazarova, Alina Demianenko, Iryna Bozhydai, Nikita Nazarov, Kateryna Demchenko, Anton Semenov
Summary: The problem of increasing social security becomes significant in the military and post-war period, especially because individuals in danger lose their health and satisfaction with life and require protection from threats. Modern challenges and sudden shocks have led to a decline in living standards for the population in Ukraine and the world, resulting in a rapid increase in the number of people in need of social protection. The development of a social services market is crucial for effective social protection, and its growth has been substantial in recent years.
FINANCIAL AND CREDIT ACTIVITY-PROBLEMS OF THEORY AND PRACTICE
(2023)
Article
Biochemistry & Molecular Biology
Anton Semenov, Rais Mendgaziev, Andrey Stoporev, Vladimir Istomin, Timur Tulegenov, Murtazali Yarakhmedov, Andrei Novikov, Vladimir Vinokurov
Summary: Using the CO2-H2O system, a new method for determining the non-variant equilibrium of the four phases (vapor-aqueous solution-ice-gas hydrate) in P-T coordinates has been proposed and validated. The method involves direct measurement of parameters after gas hydrate and ice phase formation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Denis V. Voronin, Eliza Sitmukhanova, Rais I. Mendgaziev, Maria I. Rubtsova, Dmitry Kopitsyn, Kirill A. Cherednichenko, Anton P. Semenov, Rawil Fakhrullin, Dmitry G. Shchukin, Vladimir Vinokurov
Summary: Organic phase-change materials (PCMs) have the potential for developing advanced thermoregulation and responsive energy systems due to their high latent heat capacity and thermal reliability. In this study, organic PCM n-Octadecane was encapsulated into polyurethane capsules, and the effects of different n-Octadecane feedings on shell formation, capsule structure, and latent heat storage properties were investigated. The results showed that the shell thickness decreased and the latent heat storage capacity increased with increasing n-Octadecane feeding.
Article
Multidisciplinary Sciences
Anton P. Semenov, Yinghua Gong, Rais I. Mendgaziev, Andrey S. Stoporev, Vladimir A. Vinokurov, Tianduo Li
Summary: The equilibrium conditions of sII methane/propane hydrates were experimentally determined for the C3H8/CH4-H2O-urea system. The equilibrium dissociation temperatures and pressures of sII hydrates were measured in a wide range. The effect of urea concentration on sII C3H8/CH4 hydrates was analyzed. The phase composition of the samples was analyzed by powder X-ray diffractometry.
Article
Energy & Fuels
M. B. Yarakhmedov, A. G. Kiyamov, M. E. Semenov, A. P. Semenov, A. S. Stoporev
Summary: The study finds that methanol affects the decomposition process of gas hydrates at atmospheric pressure and below 0 degrees C in different ways depending on its saturation with environmental components. Methanol absorption of methane from the hydrate leads to decomposition at lower temperatures, but at a slower rate compared to pure methane hydrate. When methanol is saturated with other medium components, hydrate dissociation occurs at the equilibrium temperature regardless of alcohol concentration. High concentrations of methanol (above 40 mass%) significantly decrease the temperature of hydrate decomposition. The findings suggest that methanol in low dosages (about 10 mass%) can be used for gas storage and transportation without affecting the equilibrium curve of hydrate formation and slowing down the process of methane hydrate decomposition.
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2023)
Article
Energy & Fuels
M. B. Yarakhmedov, A. P. Semenov, A. S. Stoporev
Summary: This work shows that water-soluble compounds can either promote or inhibit hydrate formation depending on the thermobaric conditions. Alcohols like methanol, ethanol, and 2-propanol are commonly used as thermodynamic hydrate inhibitors, but this study found that even methanol does not inhibit hydrate formation below the ice crystallization line. Additionally, the presence of ice and liquid mixture accelerates hydrate growth compared to growth from the bulk phase of ice. These findings have implications for developing gas storage and gas mixture separation technologies based on hydrates.
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2023)
Article
Engineering, Chemical
Anton P. Semenov, Rais I. Mendgaziev, Vladimir A. Istomin, Daria Sergeeva, Vladimir A. Vinokurov, Yinghua Gong, Tianduo Li, Andrey S. Stoporev
Summary: This study experimentally confirmed the synergistic effect of methanol and magnesium chloride in improving the inhibitory properties of methanol in gas hydrate formation. This combination can reduce inhibitor losses and minimize environmental impact.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Environmental
Mikael Schlumpf, Jordy Hendrikx, John Stormont, Ryan Webb
Summary: The formation of wet-snow slab avalanches is related to the liquid water content and strength of the snow layers. However, current studies disagree on this relationship and there is limited understanding of snow layers with a saturation level of θ=7% and above.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
William R. Jacobson
Summary: This study investigates the kinematics of deformation in debris bands associated with an overdeepened basin in Iceland. The research reveals the presence of multiple fabric types, suggesting a complex deformation history. Furthermore, pure shear-dominated strain was observed in an ice-free sediment ridge on the glacier surface.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Shanpeng Cao, Caichu Xia, Shuwei Zhou, Yao Zhang
Summary: Precise evaluation of frost heaving force and surrounding rock plastic zone is crucial for preventing freezing damage in cold-region tunnels. This paper presents a new elastoplastic solution for tunnel frost heaving force considering double non-uniform frost heave and intermediate principal stress, which can better guide the frost resistance design of tunnels in cold regions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Sina Niazi, Aimane Najmeddine, Maryam Shakiba
Summary: This study investigates the mechanical response and damage of asphalt concrete under freezing temperatures. A coupled thermo-hydro-mechanical constitutive framework is proposed and validated through simulations and experiments. The effects of microstructural constituents on the mechanical response are also studied through parametric analysis.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Shi-chun Cai, Xiao-hua Yang, Fei Ye
Summary: A calculation method based on the Winkler foundation model is proposed for analyzing the stress and deformation in excavation support structures in seasonally frozen soil regions. The method considers various factors and has been validated to exhibit good applicability.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Guanjun Wei, Chuanjin Lei, Maoning Gao, Hongyu Zhou, Xin Li, Chaoyue Zhang
Summary: This study introduces a novel approach to improve the accuracy of deformation prediction in frozen soil areas by integrating post-processing deformation from InSAR with a frost heave model using the EnKF assimilation algorithm. Experimental results show that this approach reduces the RMSE to 0.247 mm, indicating its high feasibility and practicality.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Cheng Xu, Yugui Yang, Shanshan Hou, Hui Zhang, Chenxiang Li
Summary: This study investigates the properties and characteristics of frozen loess through nuclear magnetic resonance (NMR) tests and flexural tests. The results show that as the temperature decreases, the pore ice content in frozen loess rapidly increases, making the phase transition of residual unfrozen water difficult. The flexural strength, toughness, and roughness of the fracture surface of frozen loess vary under different freezing temperatures and water content conditions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Jianguo Lu, Wansheng Pei, Mingyi Zhang, Xusheng Wan, Jiacheng Zhang, Yindong Wang
Summary: This paper investigates the effects of freeze-thaw cycles and salt erosion on the mechanical and microstructural properties of concrete modified with nano-TiO2 and nano-SiO2. The results show that the added nanoparticles and environment media significantly influence the overall performance of concrete samples. The SCF has the greatest influence on degradation, and the compressive strength of NS-modified concrete is lower than that of NT-modified concrete. The optimal nanoparticles ratios for NS and NT modified concretes are 1% and 2%, respectively. Furthermore, NS modification leads to better filling effect on pore structure and larger crystals on the concrete surface compared to NT modification. In the first 90 freeze-thaw cycles, the gel micro-pores increase while the macro-pores decrease, but this trend reverses within the 90-150 cycles. This research provides important insights into the erosion and frost resistance of nano-concretes in marine and cold region engineering.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Florian McLelland, Floris van Breugel
Summary: In this study, a proof-of-concept approach for automatically assessing qualitative aspects of snow type while skiing using strain sensors is explored. The algorithm developed achieves a 97% accuracy in correctly assigning qualitative labels to different segments of a skiing trajectory. This method has the potential for improving quantitative characterization of ski performance, providing snow-specific recommendations, and developing skis with automated stiffness tuning based on snow type.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Purushottam Kumar Garg, Aparna Shukla, Mohd. Farooq Azam
Summary: This study remotely investigates 25 well-distributed glaciers in the western Himalaya and finds that these glaciers were in an overall retreating phase from 1990 to 2015. The study also reveals changes in glacier dynamics before and after 2000, including reduced terminus retreat and deglaciation rates, increased surface velocity, and the presence of more glacial lakes and supraglacial debris. The study highlights the importance of topography and local surface conditions in the heterogeneity of glacier response to climate.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Junru Chen, Shuna Feng, Lang Jia, Jiagui Hou, Miles Dyck, Xiaobin Li, Qingbai Wu, Hailong He
Summary: The heat pulse method is commonly used to measure thermal properties of frozen soil, snow, or glaciers, but the phase change caused by ice melting affects the measurement accuracy. This study observed the thermal response of ice under different heating strategies and compared numerical simulations and analytical solutions. The results showed that optimizing phase change parameters improved accuracy and the numerical method effectively improved the calculation accuracy of ice thermal conductivity.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Kazuma Fukui, Chiemi Iba
Summary: By studying the evolution of pore water pressure in brick walls during cyclic freezing and thawing, we found that the water pressure in a south facing wall increases significantly during the night in cold regions. Incomplete freeze-thaw cycles are more damaging to building materials than a monotonous repetition of complete freezing and thawing.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Yasir A. Malik, Norbert Karpen, Elmar Bonaccurso, Ilia Roisman, Jeanette Hussong, Philippe Villedieu
Summary: This study quantitatively analyzes the accretion and shedding phenomena caused by ice crystal icing on heated and non-heated surfaces. Experimental findings show the accretion threshold and shed areas under different parametric conditions. The results not only consolidate previous studies, but also identify new phenomena on unheated surfaces with mixed-phase conditions at negative wet bulb temperatures and positive wet bulb temperatures.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Ezieddin Madi, Kevin Pope, Weimin Huang
Summary: This study experimentally investigates the impact of ice thickness on the energy required for de-icing. It is found that an increase in ice thickness at the heater's edge leads to a significant increase in de-icing duration. The results suggest that employing a correlation between ice thickness at different locations can help reduce the thermal energy needed for ice removal from airfoil or cylindrical surfaces.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
K. Riska, R. Bridges
Summary: Understanding the properties and parameters of ice growth models is crucial for assessing the impact of ice on facilities and ship navigation. This paper investigates the theoretical formulations for ice growth and compares calculated results with measurement data. The study focuses on level sea ice growth models and their application in brash ice consolidation modeling, considering factors such as snow cover, salinity, porosity, and atmospheric boundary including wind effect. The findings contribute to a better understanding of ice growth and consolidation processes, informing modeling techniques for marine design and operations.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
