Article
Engineering, Chemical
Hooman Daghooghi-Mobarakeh, Mark Miner, Liping Wang, Robert Wang, Patrick E. Phelan
Summary: The study found that ultrasound-assisted regeneration can improve the efficiency of silica gel regeneration, reduce the energy required for regeneration by up to 26%, and achieve regeneration at lower temperatures. Additionally, applying ultrasound can save more energy by achieving regeneration at lower temperatures.
Article
Thermodynamics
Shanshan Cai, Zhipeng Hua, Min Dai, Song Li, Xiaobing Luo, Zhengkai Tu
Summary: This study proposes three types of improved composite adsorbents, namely adsorbents with improved heat transfer, improved mass transfer, and simultaneously improved heat and mass transfer. The performance of adsorption and heat transfer is tested and compared, and the SGMC composite shows the highest cooling capacity and comparable coefficient of performance (COP) to the composite adsorbent with improved mass transfer. Compared to the traditional SG-water system, the SGMC system achieves a 22% increase in cooling capacity, a 12.8% increase in COP, and a 16.7% reduction in refrigeration cycle time.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Akihisa Miyagawa, Ryosuke Ide, Shigenori Nagatomo, Kiyoharu Nakatani
Summary: In this study, the distribution behavior of single-stranded DNA molecules in silica particles was investigated. It was found that at high salt concentrations, the distribution kinetics followed a sigmoidal pattern. A model based on DNA aggregation successfully explained the sigmoidal distribution behavior, even when the number of DNA molecules involved in aggregation was greater than two. In addition, analysis using a pore and surface diffusion model revealed that the intraparticle diffusion of DNA aggregates mainly occurred through surface diffusion.
Article
Polymer Science
Tien Duc Pham, Viet Phuong Bui, Thuy Nga Pham, Thi Mai Dung Le, Kim Thuy Nguyen, Van Hoi Bui, The Dung Nguyen
Summary: This study demonstrated the effective adsorption of anionic azo dye NCC on PDADMAC modified silica and silica-gel in an aquatic environment. The removal efficiencies of NCC using PMS and PMSG were higher than 87%, indicating their potential as novel and reusable adsorbents for anionic dye removal. The electrostatic interaction between positively charged adsorbents' surfaces and negative sulfonic groups of NCC was identified as the main driving force for anionic azo dye adsorption onto PMS and PMGS adsorbents through analysis of adsorption isotherms and surface group changes.
Article
Thermodynamics
Manigandan Sidhareddy, Sumit Tiwari, Evangelos Bellos
Summary: This study numerically investigates the impact of adsorbent regeneration on the performance of adsorption cooling systems under vacuum conditions. The results show that particle diameter significantly affects the mass transfer coefficient and desorption rate during the desorption process.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Engineering, Environmental
Reham Salah Hassan Boushara, Abdul Rahman Abdul Rahim, Khairiraihanna Johari, Nurul Ekmi Rabat, Amir Sada Khan, Norasikin Saman
Summary: This study investigates the adsorption behavior of dyes using silica nanocapsules (SiNCs) adsorbents and finds that toluene and ethyl ether are effective solvents for synthesizing SiNCs. SiNCs exhibit high selectivity for the removal of congo red, methyl orange, methylene blue, and Janus green B. The adsorption process follows pseudo-second-order kinetics and Langmuir isotherm model.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Thermodynamics
Vincenzo Gentile, Michael Bozlar, Forrest Meggers, Marco Simonetti
Summary: This experimental study presents a thermodynamic cycle using isothermal regeneration to enhance the collection and utilization of atmospheric water in dry climates. Experimental results demonstrate the production of 1.5 to 3.3 liters of liquid water per day on a solar field.
Article
Thermodynamics
Zepeng Wang, Zhongxian Yuan, Zhongbao Liu, Yimo Liu, Maria Bernat
Summary: The study presents a thermodynamic model to analyze the effect of adsorption time on the performance efficiency of a solar adsorption refrigeration system. The results show that increasing the adsorption time improves cooling capacity but also prolongs cycle time and affects system dynamics.
APPLIED THERMAL ENGINEERING
(2023)
Article
Environmental Sciences
Jianfei Yu, Xuezhong Zhang, Baosheng Jin, Jinxi Chen, Yaji Huang, Zhifei Wang
Summary: This study compared the adsorption efficiency of synthesized Si-Al xerogel and crystallized Si-Al, finding that Si-Al xerogel has a higher adsorption capacity, which may be promising for designing efficient sorbents for municipal solid waste incineration in the future.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Xianming Zheng, Huiyu Zhang, Sadia Rehman, Pengyi Zhang
Summary: The formation of a granular Al-based metal organic gel, CAU-3-NH2(gel), with high surface area and adsorption capacity for VOCs, as well as its outstanding performance in dynamic adsorption and regeneration at mild temperatures, has been reported. The interaction of toluene-framework and adsorption process are investigated by using Grand Canonical Monte Carlo (GCMC) simulations.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Environmental Sciences
Mohammad Angaar Uriakhil, Tim Sidnell, Andrea De Castro Fernandez, Judy Lee, Ian Ross, Madeleine Bussemaker
Summary: Per- and poly-fluoroalkyl substances (PFAS) are xenobiotics found in variable concentrations in soils and groundwater globally, with remediation techniques including solidification-stabilisation, soil washing, and incineration. This study explores PFAS adsorption mechanisms, efficacy on sorbents, and impacts on remediation techniques.
Article
Energy & Fuels
Zhenchi Chen, Bentian Tang, Yuzhong Niu, Hou Chen, Yongfeng Liu, Aili Wang, Liangjiu Bai
Summary: Silica supported thiosemicarbazide was synthesized and characterized for the adsorption of Cu(II) and Zn(II) from ethanol and aqueous solutions. The adsorption capacity for Cu(II) and Zn(II) in ethanol solution is superior. The adsorption process is controlled by film diffusion and follows a pseudo-second-order model, with increased uptake by higher metal ion concentration and temperature.
Article
Materials Science, Ceramics
Otavio Rovere Bittencourt, Ingrid Vicente Farias, Flavio Henrique Reginatto, Leliz Ticona Arenas, Herica Aparecida Magosso, Alexandre Luis Parize
Summary: The presence of micropollutants in springs in Brazil and other countries has been detected. This study reports the synthesis and characterization of a xerogel-based adsorbent for the removal of the emerging contaminant ethinylestradiol. The adsorbent showed high adsorption capacity, thermal stability, and good regeneration ability.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Ahmed A. Askalany, Kutub Uddin, Bidyut B. Saha, Muhammad Sultan, Giulio Santori
Summary: This study presents a new method for experimental investigation of water adsorption kinetics using silica-supported ionic liquid, and predicts its performance in water desalination through modeling. The results suggest a promising future for this material in water desalination applications.
Article
Thermodynamics
Ahmed Rezk, Gamze Gediz Ilis, Hasan Demir
Summary: This article experimentally investigates and models the adsorption characteristics of silica gel/ethanol pair that can utilize low-temperature heat sources. The results showed high affinity and reversibility of the adsorption/desorption process. The study also determined the heat of adsorption and diffusion energy, as well as the suitable kinetic model for simulating the chemical adsorption/desorption processes.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Review
Green & Sustainable Science & Technology
Ye Yao
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Review
Green & Sustainable Science & Technology
Godwine Swere Okochi, Ye Yao
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Article
Energy & Fuels
Ye Yao, Yuebin Yu, Zhengyuan Zhu
Article
Engineering, Chemical
K. Zu, Y. Yao, M. Cai, F. Zhao, D. L. Cheng
JOURNAL OF AEROSOL SCIENCE
(2017)
Article
Materials Science, Characterization & Testing
Ye Yao, Li Dai, Fengjing Jiang, Weineng Liao, Mengcheng Dong, Xueqi Yang
Article
Thermodynamics
Wei Li, Yue Pan, Ye Yao, Mengcheng Dong
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2018)
Article
Nanoscience & Nanotechnology
Fengjing Jiang, Li Dai, Ye Yao
Article
Materials Science, Characterization & Testing
Wei Li, Ye Yao
Article
Thermodynamics
Ye Yao, Jiongde Chen, Jingmei Feng, Shaofan Wang
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
(2019)
Article
Thermodynamics
Ye Yao, Wei Li, Yixiong Hu
APPLIED THERMAL ENGINEERING
(2020)
Article
Thermodynamics
Wei Li, Ye Yao
Summary: The paper introduces the principle of internally-cooled membrane-based liquid desiccant dehumidifier and various flow patterns affecting its performance, demonstrating that counter flow arrangement between air and solution and parallel flow arrangement between solution and cooling water achieve the best dehumidification efficiency.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Construction & Building Technology
Lei Xiong, Ye Yao
Summary: A K-nearest neighbors (KNN)-based thermal comfort model is proposed in this paper to establish a personalized adaptive thermal comfort environment according to individual preferences, and it is studied through an AI environmental controller. Experimental results show that the model can achieve an accuracy of 88.31% with 1000 sets of training data, effectively meeting practical demand.
BUILDING AND ENVIRONMENT
(2021)
Review
Construction & Building Technology
Ye Yao, Divyanshu Kumar Shekhar
Summary: Building systems are complex and unpredictable, posing challenges for energy-saving control. Model predictive control (MPC) is a potential strategy to address these challenges. This paper provides a comprehensive view of MPC applications in building HVAC systems, discussing modeling techniques and optimization algorithms in detail.
BUILDING AND ENVIRONMENT
(2021)
Article
Thermodynamics
Wei Li, Ye Yao
Summary: This study developed mathematical models and experimentally validated the performance of ten flow types of IMLDD. The differences in temperature and humidity between air and solution varied among different flow types, and the effects of operating conditions on performance were thoroughly studied. The findings can help researchers and engineers choose the appropriate form of IMLDD based on inlet conditions.
Article
Thermodynamics
W. Li, Y. Yao, J. Chen
JOURNAL OF APPLIED FLUID MECHANICS
(2018)
Article
Thermodynamics
Yunxia Ma, Fei Liu, Honggang Pan, Hongjian Zhang, Shuxia Yan, Ailing Zhang
Summary: This paper proposes a dynamically tunable and switchable perfect infrared absorber that exhibits excellent electrical regulation performance and high absorptance. The absorption mechanism is explained using a multiple interference model, and it is proven to be polarization insensitive.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
F. J. dos Santos, G. S. M. Martins, M. Strobel, L. Beckedorff, K. V. de Paiva, J. L. G. Oliveira
Summary: This study investigates the effects of inlet conditions and plate's features on the thermal-flow performance of a gasket plate heat exchanger (GPHE) and assesses the impact of a modified tightening distance on its performance. No systematic study on the combined effects of inlet conditions and assembly accuracy on GPHE performance has been conducted before.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Alok K. Ray, Dibakar Rakshit, K. Ravi Kumar, Hal Gurgenci
Summary: The low thermal conductivity of phase change materials limits the heat transfer rate and application of latent heat storage systems. This numerical study examines the impact of two passive heat transfer enhancement techniques on the thermal performance of a latent heat storage system. The results show that the orientation and position of the heat transfer fluid tube have significant effects on the charging duration, while the discharging duration remains unchanged. The combined effect of orientation and eccentricity reduces the charging duration, but increases the discharging duration compared to the concentric domain.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Yalu Han, Yanlong Wang, Chenyang Liu, Xinmin Hu, Yin An, Zhengcai Li, Jiaxun Jiang, Lizhi Du
Summary: This paper investigates the calculation method of thermal conductivity in NAPLs-contaminated soils. By establishing NAPLs-contaminated soil models and using the Lattice Boltzmann Method (LBM) for calculation, an optimized three-dimensional model with high computational accuracy and efficiency is obtained. The study also finds that saturation and Nz parameters have a significant impact on calculation time, while the thermal conductivity of the two-dimensional model is more sensitive to anisotropy. The influence of porosity and NAPLs content on thermal conductivity should be considered during in-situ thermal desorption.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Mostafa Taha, Song Zhao, Aymeric Lamorlette, Jean-Louis Consalvi, Pierre Boivin
Summary: For the first time, large-eddy simulations (LES) of the near-field region of large-scale fire plumes were performed using a pressure-based Lattice Boltzmann method (LBM) with low-Mach number approximation. The simulations showed quantitative agreement with experimental data and were consistent with previously-published numerical studies. The study demonstrated the computational efficiency of the proposed LBM solver in tackling fire-induced flows, suggesting LBMs as a good alternative candidate for modeling fire-related problems.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Weixin Zhang, Yehang Xie, Yuqiang Ding, Zhao Liu, Zhenping Feng
Summary: This study investigated the impact of upstream slot leakage on the endwall film cooling characteristics of turbine blades. Pressure Sensitive Paint (PSP) technology was used to measure the film cooling characteristics, and numerical analysis was conducted to evaluate the aerodynamic performance. It was found that increasing the mass flow ratio of the upstream slot enhanced film cooling, decreased aerodynamic losses, and reduced the strength of passage vortex. However, reducing the distance between the slot and the blade leading edge only enhanced film cooling without affecting the leakage coverage area.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Rui Zhang, Zhen-lei Li, Yan-sheng Zhang, Dong Chen, Guo Yuan
Summary: This study discusses the heat transfer behavior of different jet forms on steel tubes. The results show that the annular jet performs better in terms of cooling intensity and uniformity. The cooling performances of the two jet forms are similar when the steel tube size is small. Therefore, the planar jet can be considered for smaller diameters due to its simplicity, low cost, and convenience in application.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
A. R. Khoei, A. M. Orvati Movaffagh, A. Rezaei Sameti
Summary: This paper presents a comprehensive study on the thermo-mechanical characteristics of oxide-coated aluminum nano-powder. It is found that the thermal conductivity of oxide-coated aluminum nano-powder is significantly lower than that of the bulk aluminum, and it is affected by the density and temperature.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Yanjin Wang, Jintao Xiong, Lingyu Chen, Zhihai Lv, Qian Wang
Summary: A solar radiation transfer model for spray cooling double skin facade (SC-DSF) is proposed in this study. The model is validated by experimental results and various influence factors are analyzed. The effectiveness of adjusting droplet coverage rate and size is also evaluated.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Bostjan Zajec, Blaz Mikuz, Anil Kumar Basavaraj, Marko Matkovic, Matej Tekavcic, Martin Draksler, Leon Cizelj, Bostjan Koncar
Summary: We have developed an advanced experimental setup to investigate flow and heat transfer in an annular channel. The setup allows heat transfer measurements and flow visualization using a temperature-controlled inner tube. Measurements can be conducted in both single-phase and two-phase flow regimes. The setup ensures a uniform velocity field in the annular channel using specially designed inlet and outlet headers. The inner copper tube is heated by water and contains turbulators for enhanced heat transfer and thermocouples for temperature measurement. A three-dimensional conjugate heat transfer CFD model has been developed and validated to accurately estimate heat losses in the setup. This study demonstrates the importance of numerical simulations in improving the interpretation of complex experimental results.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Weijie Chen, Ke Wang, Yongqing Wang, Shantung Tu, Zunchao Liu, Huijuan Su
Summary: In this study, a novel gradient porosity transpiration cooling plate structure (GP-TCPS) is proposed to alleviate heat transfer deterioration caused by non-uniform temperature distribution in transpiration cooling plate structure (TCPS). Computational fluid dynamics (CFD) and response surface method (RSM) were used for qualitative and quantitative analysis of the flow and heat transfer of GP-TCPS. The optimized structure of GP-TCPS significantly improves temperature uniformity, injection pressure, and average cooling efficiency compared to traditional TCPS.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
R. Essam, A. Elsaid, W. K. Zahra
Summary: This study presents a novel bioheat model for simulating heat transfer in skin tissue. The model offers an improved representation of thermal dynamics in the skin and has been validated using numerical solutions and experimental measurements. The study highlights the importance of incorporating vascular inlet parameters and thermal relaxation effects in the thermal profile, and suggests potential applications in thermal therapy and wound healing.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Dongbo Shi, Tao Xu, Zifeng Chen, Di Zhang, Yonghui Xie
Summary: The cooling structure design of turbine blades is crucial for the safety and reliability of the gas turbine set. This research investigates different arrangement schemes, including dimple/protrusion arrangements, to enhance the cooling performance. The results show that the arrangement scheme with both passes arranged by dimples has the best comprehensive thermal performance.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Emrehan Guersoy, Hayati Kadir Pazarlioglu, Mehmet Guerdal, Engin Gedik, Kamil Arslan
Summary: The thermo-hydraulic performance of Al2O3/H2O nanofluid with different nanoparticle shapes flowing in a sudden expansion tube with variable sudden expansion inclination angles and elliptical dimpled fins with different diameters were numerically investigated. The results showed that the nanoparticle shapes, sudden expansion inclination angles, and elliptical dimpled fin have significant impact on the thermo-hydraulic performance. This study reveals the novelty and importance of these factors in the research.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Rukun Hu, Xinyu Huang, Xinyu Gao, Liu Lu, Xiaohu Yang, Bengt Sund
Summary: This study examines the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit using numerical simulation. The findings show that bottom cross-cut can improve the heat storage rate and natural convection heat transfer gain.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)