Article
Energy & Fuels
Fan Wang, Yuan Lv, Xinran Xia, Xiaodong Wu, Chuanxiao Cheng, Tian Qi, Wenfeng Hu, Lunxiang Zhang, Lei Yang, Jiafei Zhao, Yongchen Song
Summary: Low energy storage density, intermittent phase changes, and heat transfer barriers have posed challenges in hydrate energy storage systems. A novel cold storage system with internally circulating gas disturbance was constructed and analyzed for the first time, showing improved efficiency and rapid energy transmission. The gas disturbance-based hydrate energy storage process holds significant guiding value for applications such as refrigerated transport and building cooling systems.
Article
Energy & Fuels
Fan Wang, Xinran Xia, Yuan Lv, Chuanxiao Cheng, Lei Yang, Lunxiang Zhang, Jiafei Zhao, Yongchen Song
Summary: Clathrate hydrates with large latent heat of phase change are becoming a key method to improve and replace current cold storage technologies. This study proposes a novel hydrate cold storage system and investigates its characteristics. The results show that internal circulating gas disturbance significantly enhances the cooling capacity of the system.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Environmental
Byeonggwan Lee, Kyuchul Shin, Sanehiro Muromachi, Igor L. Moudrakovski, Christopher I. Ratcliffe, John A. Ripmeester
Summary: Antifreezes such as methanol and ammonia can enhance methane storage in binary clathrate hydrates like THF and TBAB. Methanol acts as a catalyst for methane hydrate formation and induces TBAB hydrates to form an orthorhombic structure suitable for methane storage. These findings suggest that methanol could play a crucial role in hydrate-based methane storage systems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Simin Keshtkari, Abdolmohammad Alamdari, Amir H. Mohammadi
Summary: Accurate modeling of clathrate hydrates phase behaviors is crucial for the petroleum industry. This study investigates the influence of repulsive force between guest-host molecules in hydrate cavities and compares the performances of different potential functions. The results show promising improvement in binary hydrate systems.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Arezoo Azimi, Jafar Javanmardi, Amir H. Mohammadi
Summary: A thermodynamic model based on the dissociation enthalpy of clathrate hydrate and water activity in porous medium is introduced to predict the stability conditions of clathrate hydrates. The model is capable of predicting the dissociation conditions of simple and mixed-clathrate hydrates in various porous media and under a wide range of operating conditions, confirming that the inhibition effect of porous medium increases as pore diameter decreases.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Hassan Pahlavanzadeh, Sepideh Nouri, Mahnaz Aghajanloo, Amir H. Mohammadi, Samira Mohammadi
Summary: In this study, the dissociation conditions of CO2 + water systems in the absence/presence of MgCl2 + THF aqueous solutions at different concentrations were investigated experimentally and thermodynamically. The results showed that MgCl2 acted as an inhibitor while THF acted as a promoter. The equilibrium curve shifted towards the left in the presence of MgCl2, especially at high pressures. A thermodynamic model using the Peng-Robinson equation of state and the UNIQUAC activity coefficient model was developed and found to predict the equilibrium conditions reasonably well.
FLUID PHASE EQUILIBRIA
(2023)
Article
Chemistry, Physical
Khayyam Mehrabi, Jafar Javanmardi, Ali Rasoolzadeh, Amir H. Mohammadi
Summary: This study experimentally measured the dissociation conditions of methane hydrates in the presence of diethanolamine (DEA) and diethanolamine + ethylene glycol (EG) aqueous solutions. It was found that DEA thermodynamically inhibits methane hydrate formation, shifting stability temperatures by about 4.2 K. Although DEA is weaker than EG, it can still be used as a gas sweetening agent and hydrate inhibitor.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Hesam Najibi, Arezoo Azimi, Jafar Javanmardi, Reza Roozbahani, Amir H. Mohammadi
Summary: The study focused on the impact of hydrate inhibitors on the stability conditions of natural gas hydrates. Experimental measurements were conducted to determine the stability conditions of natural gas hydrates in different concentrations of hydrate inhibitors and salt solutions. By developing a thermodynamic model and measuring the activity of the aqueous phase, the accuracy of the model was improved.
FLUID PHASE EQUILIBRIA
(2022)
Article
Energy & Fuels
Sandro Hiller, Christian Hartmann, Babette Hebenstreit, Stefan Arzbacher
Summary: Grid-scale electrical energy storage is crucial for transitioning to renewable energy sources. Liquid-air energy storage systems have limitations, leading to the development of a novel solidified air energy storage system. This system exhibits high round-trip efficiency and storage density, but stability and processing challenges need to be addressed.
Article
Engineering, Environmental
Jie Xu, Qinglin Chen, Jianwei Du
Summary: Inducing pure methane hydrate from double methane semi-clathrate hydrate is a promising method to enhance methane storage efficiency. This study used a halogen-free semi-clathrate hydrate former to conduct comprehensive experiments, showing significant improvements in methane uptake.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Katarzyna Melaniuk, Kamila Sztybor, Tina Treude, Stefan Sommer, Marek Zajaczkowski, Tine L. Rasmussen
Summary: This study examines the response of living benthic foraminifera to environmental successions in a cold-seep ecosystem. The results show that the distribution patterns of foraminifera change according to the progressing environmental succession. However, foraminifera cannot be used as exclusive indicators of past methane seepage intensity.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Chemistry, Physical
Wenxiang Zhang, Xinyan Du, Kai Guo, Renjie Chen, Jianbiao Chen
Summary: This paper systematically studied the thermophysical properties of semi-clathrate hydrates formed by aqueous solutions of tetrabutyl-(ammonium/phosphonium) salts with different concentrations. It found that semi-clathrate hydrates have good cycle performance, controllable formation conditions, and a wide range of phase change temperatures, providing a basis for energy-saving cold storage processes.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Harshal J. Dongre, Aman Deshmukh, Amiya K. Jana
Summary: Clathrate compounds with high latent heat storage capacity and naturally assisted salt rejection are suitable for load management and desalination processes. Thermodynamics can streamline scattered data, but currently limited to being a proof of concept.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Seungin Lee, Yusung Ok, Yunseok Lee, Dongju Seo, Seokyoon Moon, Youngjune Park
Summary: In this study, cyclopentyl amine (CPA) was introduced as a potential thermodynamic promoter for methane (CH4) storage. The results showed that CPA could form hydrate without the help of gas and work as a thermodynamic promoter for CH4. Tuning phenomena were observed below a certain concentration of CPA.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Thermodynamics
Riku Matsuura, Kosuke Watanabe, Yuji Yamauchi, Haruka Sato, Li-Jen Chen, Ryo Ohmura
Summary: Clathrate hydrates have potential for novel refrigeration systems due to their high dissociation heat; theoretical analysis was conducted on a hydrate-based refrigeration system; results indicate that dissociation heat of hydrates and enthalpy change of guest gas are key factors, with polyatomic molecules suitable as guest gas for hydrates.
Article
Energy & Fuels
Mohammad Hossein Ahmadi, Hamidreza Jashnani, Kwok-Wing Chau, Ravinder Kumar, Marc A. Rosen
Summary: In this study, an Artificial Neural Network (ANN) approach called Group Method of Data Handling (GMDH) was used to model carbon dioxide emissions based on shares of energy sources and GDP in five countries: Iran, Kuwait, Qatar, Saudi Arabia, and UAE. The results showed that the ANN model accurately predicted CO2 emissions, with an average absolute relative error of 2.3% and an R-squared value of 0.9998.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Energy & Fuels
Mehdi Nikzad, Mohammad Zamen, Mohammad Hossein Ahmadi
Summary: The research investigates the integration of thermal photovoltaic panels with thermoelectric generator module (PVT-TEG) to reduce the temperature of photovoltaic cells and increase the electrical and thermal efficiency of the system. Experimental and theoretical data show that the PVT-TEG system has a higher electricity generation efficiency compared to a simple panel under specific environment conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Saeed Khojaste Effatpanah, Mohammad Hossein Ahmadi, Pasura Aungkulanon, Akbar Maleki, Milad Sadeghzadeh, Mohsen Sharifpur, Lingen Chen
Summary: This study conducted a comparative analysis in Jiangsu province, China, to evaluate and select the most appropriate clean energy solution using five prominent multi-criteria decision-making methods. The results showed that solar photovoltaic and wind energy were the optimal options, followed by nuclear and biomass energy. Sensitivity analysis indicated that changes in the weights of land use and water consumption criteria had the greatest impact on the performance of options.
Article
Green & Sustainable Science & Technology
Mohammad Hossein Ahmadi, Seyyed Shahabaddin Hosseini Dehshiri, Seyyed Jalaladdin Hosseini Dehshiri, Ali Mostafaeipour, Khalid Almutairi, Hoa Xuan Ao, Mohammadhossein Rezaei, Kuaanan Techato
Summary: A technical-economic assessment was conducted in Afghanistan's Helmand province to evaluate the possibilities of wind and solar power generation. The study revealed that most of the province has high solar irradiance and wind power, with costs of generation being significantly cheaper than the official price of renewable power in Afghanistan.
Review
Thermodynamics
Suvanjan Bhattacharyya, Devendra Kumar Vishwakarma, Adithya Srinivasan, Manoj K. Soni, Varun Goel, Mohsen Sharifpur, Mohammad Hossein Ahmadi, Alibek Issakhov, Josua Meyer
Summary: The objective of this article is to study the work carried out in heat transfer augmentation using active and passive techniques. The study reviews research done in various areas such as electrohydrodynamic, magnetic field, corona wind, vortex generators, tape and coil inserts, roughness, and modified duct. It was found that passive methods are more investigated than active methods due to their safe and sound operation along with no additional requirement of power. The results show that duct modification is an effective and efficient way for heat transfer enhancement.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Energy & Fuels
Phakamile Ndlovu, Saeideh Babaee, Paramespri Naidoo
Summary: This article reviews the encapsulation process of carbon dioxide by replacing methane from natural gas hydrates, presenting and discussing methane-carbon dioxide replacement models. The variables affecting the replacement process and reported theoretical findings are reviewed, along with the challenges and limitations. The fundamentals of hydrate formation mechanisms on porous media are also detailed, and a comprehensive discussion and comparison of experimental studies involving different porous media materials and various additives are presented.
Article
Thermodynamics
Ehsan Boumari, Masoumeh Mojazi Amiri, Amirhosein Khadang, Heydar Maddah, Mohammad Hossein Ahmadi, Mohsen Sharifpur
Summary: The purpose of this study is to investigate the effects of Reynolds number, different volume fractions of aluminum oxide nanofluid, and different heat fluxes on heat transfer performance in a helical tube. The results show that increasing the volume fraction of aluminum oxide nanofluid and Reynolds number leads to an increase in the Nusselt number. Similarly, increasing the constant heat flux also increases the Nusselt number. Artificial neural networks were used to predict the Nusselt number successfully, with a correlation coefficient of 0.944416302.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Chemistry, Physical
Phakamile Ndlovu, Saeideh Babaee, Paramespri Naidoo
Summary: Vast methane hydrates found in seabeds and permafrost areas can be used as an energy source and provide a storage solution for greenhouse gases by encapsulating carbon dioxide. The article presents experimental results on the replacement process using a laboratory reactor and various additives to enhance the reaction.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Thermodynamics
Bahram Ghorbani, Milad Sadeghzadeh, Mohammad Hossein Ahmadi, Mohsen Sharifpur
Summary: This study presents a novel approach to cogenerate liquid carbon dioxide and liquefied natural gas using air for energy storage and production. The integration of mixed refrigeration cycle, liquid air cold energy recovery, carbon dioxide liquefaction cycle, and combined cooling and power cycle enhances the system's output performance. Solar parabolic trough collectors are used to assist power production. Sensitivity analysis demonstrates the effect of pressure in liquid air and outlet temperature of the solar collector exchanger on specific energy and exergy efficiency.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Energy & Fuels
Kai Yang, Tianhao Shi, Tingzhen Ming, Yongjia Wu, Yanhua Chen, Zhongyi Yu, Mohammad Hossein Ahmadi
Summary: A fabric air dispersion system (FADS) integrates air transmission and distribution, addressing issues of uneven air supply and surface condensation associated with traditional ventilation systems. The proposed simulation method overcomes challenges of mesh generation and accuracy, and examines the effects of different shapes and opening configurations on flow and heat transfer characteristics in fiber ducts. The findings show that temperature rise inside the duct is correlated with flow rate, with faster flow speeds resulting in higher temperatures.
Article
Thermodynamics
Mojgan Ebrahiminejadhasanabadi, Wayne Michael Nelson, Paramespri Naidoo
Summary: In this study, the solubility of methane and ethane in n-methyl-2-pyrrolidone and monoethanolamine-based solvents was determined. The results showed that replacing the aqueous part of monoethanolamine solvents with n-methyl-2-pyrrolidone increased the solubility of desirable components of natural gas. Adding monoethanolamine to n-methyl-2-pyrrolidone outperformed the Purisol solvent in terms of carbon dioxide absorption and decreased hydrocarbon solubility.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2023)
Article
Energy & Fuels
Abdollah Mehrpanahi, Moslem Akbari Vakilabadi, Sadegh Nikbakht Naserabad, M. H. Ahmadi
Summary: This research examines the thermodynamic properties of a combined cycle power plant and analyzes the effect of various parameters on its performance. The results demonstrate that increasing certain parameters improves system performance and exergy efficiency. The study also identifies the optimal performance point of the heat recovery steam generator using genetic algorithm optimization.
ENERGY SCIENCE & ENGINEERING
(2023)
Article
Thermodynamics
Sadegh Nikbakht Naserabad, Moslem Akbari Vakilabadi, Mohammad Hossein Ahmadi
Summary: In this research, the performance of a micro-gas turbine combined heating and cooling plant coupled with a solar PV system in an office building in Iran is analyzed. The study examines the impact of renewable to fossil fuel share on system performance and economy. The results show that strategies without solar energy are not economically viable even with supportive incentives for renewable energies.
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
(2023)
Review
Energy & Fuels
Aveek Gupta, Ravinder Kumar, Ashish Maurya, Mohammad H. Ahmadi, Bulbul Ongar, Anara Yegzekova, Jeet Prakash Sharma, Sumit Kanchan, Sagar Shelare
Summary: This review focuses on the use of nanoparticles as fuel additives to improve the emission and performance characteristics of internal combustion engines. By comparing fuels blended with nanoparticles to fuels without nanoparticles, it is found that nanoparticles can enhance fuel atomization and engine performance. Graphene and ceria nanoparticles show significant improvement in performance, while alumina reduces hydrocarbon and carbon monoxide emissions but increases nitrogen oxides. Overall, nanoparticles can improve the thermophysical characteristics of fuels and enhance engine emission and performance.
ENERGY SCIENCE & ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Ntebogeng Mqoni, Sangeeta Singh, Indra Bahadur, Hamed Hashemi, Deresh Ramjugernath
Summary: The efficacy of mixtures of ionic liquids (ILs) in dissolving cellulose was investigated and compared with pure ILs. It was found that the addition of a co-solvent significantly enhanced the cellulose dissolution, with the ([BMIM][OAc] + DMF) mixture showing the highest dissolution capacity. The experimental results were confirmed by numerical calculations using density functional theory (DFT).
RESULTS IN ENGINEERING
(2022)
Article
Thermodynamics
J. N. Zappey, E. E. Moore, O. Benes, J. -c. Griveau, R. J. M. Konings
Summary: In this study, the heat properties of technetium metal were measured and analyzed using various thermal measurement methods, including its superconductivity, zero-degree Debye temperature, electronic heat capacity coefficient, and the standard entropy of the superconducting state.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Pengshuai Zhang, Jixiu Deng, Xiaoyu Jiang, Liang Xu, Yu Huang, Han Sun, Mi Gao, Xianghan Wang, Yulong Gao, Kangning Fan, Lu Zhang, Shuoye Yang
Summary: In this study, the solubility of daminozide in twelve neat solvents was determined using the gravimetrical method. Various models were employed to analyze the experimental solubility, and the miscibility of daminozide in the selected solvents was discussed based on Hansen solubility parameters. The results showed that the dissolution mechanism of daminozide in all solvents was entropy-driven.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Jinju Ma, Hao Wu, Dongxu Yi, Wei Liu, Xinding Yao, Tao Li, Baozeng Ren
Summary: In this study, the solubility and compatibility of Agomelatine in different solvents were investigated through experimental and simulation methods. The results showed that Agomelatine forms more stable hydrogen bonds with alcohol solvents compared to other ester solvents. Additionally, the study analyzed the acidity and basicity characteristics of Agomelatine as well as the reasons for differences in solubility.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Angelica V. Sharapova, Marina V. Ol'khovich, Svetlana V. Blokhina
Summary: This study determined the key physico-chemical properties of cardiovascular carvedilol (CVD) in terms of solubility and distribution coefficients in modeling solvents and biphasic systems. The results showed that the solubility of CVD varied significantly depending on the solvent and pH conditions, and the dissolution process deviated from ideality in saturated solutions.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Wenxi Song, Na Wang, Mingzhe Tan, Meng Wang, Xin Huang, Ting Wang, Hongxun Hao
Summary: The solubility and thermodynamic behavior of climbazole in different solvents were investigated in this study. The results showed that solubility is influenced by temperature and solvent properties. Furthermore, the solvent effect was evaluated and the molecular mechanism behind the solubility behavior was revealed using solvation energy relationship models and molecular simulation methods.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yuqi Su, Weijie Jia, Junshuai Chen, Songtao Cao, Maogang He, Ying Zhang
Summary: This paper presents a novel measurement method based on the finite volume method (FVM) for measuring the concentration-dependent mutual diffusion coefficient D(C) in binary solution. The measurement principle was derived by integrating Fick's second law and establishing discretization equation. The method was validated through experiments and a semi-empirical correlation was built to study the temperature and concentration influences on the diffusion coefficient D.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Bo Tang, Xiaoyu Yao, Xueqiang Dong, Bowen Sheng, Yanxing Zhao, Jun Shen, Maoqiong Gong
Summary: In this study, metal-bellows variable volumetry was used to measure the saturated vapor pressures and critical parameters of R1234ze(Z) and R1336mzz(Z). New vapor pressure correlations were formulated based on the obtained data. The low uncertainties of the measured values indicate the reliability and reproducibility of the data. The results provide important thermophysical data for the use and optimization of R1234ze(Z) and R1336mzz(Z) in HTHP systems.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Vivek Pathania, Ankita Garg, Navneet Kaur, Neha
Summary: The interaction between Isoniazid and beta-cyclodextrin in solutions was investigated to understand the molecular interactions between different components. The results showed that the interaction between Isoniazid and beta-cyclodextrin affected the volume and compressibility of the solutions, and the hydration behavior of Isoniazid in the solutions was influenced by the cosolvent.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Mauricio Vega-Teijido, Marc E. Segovia, Martina Kieninger, Oscar N. Ventura
Summary: A composite chemical model, SVECV-f12, has been developed to accurately reproduce barrier heights of hydrocarbon species. The model successfully corrects systematic errors between experimental and theoretical values and is used for predicting formation enthalpies and hydrogenation/isomerization enthalpies.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Kemal Ozcan, Aylin Boztepe, Erdog an Tarcan, Cagatay Tasdemirci
Summary: In this study, the enthalpy of combustion of methane, the main component of natural gas, was measured using a reference gas calorimeter. The experimental results were compared with the values specified in ISO 6976:2016. The average enthalpy of combustion was determined as -55518.2 kJ kg-1 with an error of 0.2%.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Kouki Mekaru, Takuto Miyagi, Ayaka Mishima, Isami Uehara, Ryo Ohmura, Keita Yasuda
Summary: This study investigated the four-phase equilibrium conditions of carbon dioxide + cyclopentane double clathrate hydrate forming systems coexisting with sodium chloride aqueous solution or pure water. The results showed that the double clathrate hydrate is more thermodynamically stable than simple clathrate hydrates under a given sodium chloride concentration.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yameng Wan, Xiaoqiang Gao, Ruiai Wang, Fanfan Li, Yanxun Li, Haixia He
Summary: This study evaluated the solubility of Iminostilbene (IMB) in twelve organic solvents and found that the solubility increased with temperature and showed a specific order in different solvents. The analysis of molecular interactions and solubility parameters provided insights into the dissolution behavior. The UNIQUAC model was used to fit the solubility data, and the thermodynamic properties of the mixing and dissolution processes were thoroughly evaluated.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Yinan Liu, Mingcheng Li, Chunying Zhu, Xiqun Gao, Youguang Ma
Summary: This study successfully prepared amine-based functionalized deep eutectic solvents and investigated the effects of solvent composition, water content, and temperature on the properties of the solvent through density and viscosity measurements. The results contribute to a better understanding of hydration and intermolecular interactions in deep eutectic solvents.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Correction
Thermodynamics
Deepak Parmar, Kavitha Kumari, Naveen Kumar, Manju Rani, Mustapha Sahal, Sanjeev Maken
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
Article
Thermodynamics
Ruslan N. Nagrimanov, Aliya R. Ibragimova, Boris N. Solomonov
Summary: In this study, the heats of solution of hydrocarbons and alcohols with 2-methyltetrahydrofuran are systematically analyzed. Structure-property relationships are developed to calculate the enthalpy of solvation of aliphatic alcohols in 2-methyltetrahydrofuran. Specific interactions in the alcohol-2-methyltetrahydrofuran systems are determined to better understand intermolecular interactions in 2-methyltetrahydrofuran solutions. This research provides valuable insights into the properties and energies of these interactions, facilitating the transition to more environmentally friendly solvents.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2024)
