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Numerical Investigation into the Development Performance of Gas Hydrate by Depressurization Based on Heat Transfer and Entropy Generation Analyses

Bo Li, Wen-Na Wei, Qing-Cui Wan, Kang Peng, Ling-Ling Chen
2020 Entropy  
A mathematical model of heat transfer and entropy production of methane hydrate dissociation by depressurization has been established, and the change behaviors of various heat flows and entropy generations  ...  On the contrary, the undesirable entropy generations of water, gas and quartz sand are induced by the irreversible heat conduction and thermal convection under notable temperature gradient in the deposit  ...  Furthermore, the relevance of entropy generation to heat transfer also remains unclarified in the area of gas hydrate development.  ... 
doi:10.3390/e22111212 pmid:33286980 fatcat:ouoqgqrpabcmfkvzgdycdmfyum

Investigation into gas production from natural gas hydrate: A review

Xiao-Sen Li, Chun-Gang Xu, Yu Zhang, Xu-Ke Ruan, Gang Li, Yi Wang
2016 Applied Energy  
It is mainly because some characteristics of the flow (gas, water, gas-hydrate slurry, quicksand, etc.), the issues of heat and mass transfer, the risk assessment and the economic evaluation are still  ...  Because of the particularity of NGH stabilizing only in the conditions of the high pressure and the low temperature, the exploitation of NGH is distinguished from those of petroleum and natural gas.  ...  Acknowledgement This work was supported by the National Science Foundation for Distinguished Young Scholars of China (51225603), and the National Natural Science Foundation of China (51376184, 51476174  ... 
doi:10.1016/j.apenergy.2016.03.101 fatcat:dyifn5uelrggbjxdgcvdp4nkkq

Analytical investigation of high temperature 1 kW solid oxide fuel cell system feasibility in methane hydrate recovery and deep ocean power generation

Mohammad Ali Azizi, Jacob Brouwer, Derek Dunn-Rankin
2016 Applied Energy  
Fig. 15 . 15 Maximum power generation by SOFC based on depressurized hydrate reservoir at constant hydrogen utilization = 0.6 and P W = 4 MPa.  ...  A numerical approach for gas hydrate recovery using magnetic thermal stimulation of hydrate sediment has been developed by Islam et al. [26] .  ... 
doi:10.1016/j.apenergy.2016.06.119 fatcat:ztchjmloavcf5oomz4n7ouzuju

Pipeline transport of CO2 mixtures: Models for transient simulation

P. Aursand, M. Hammer, S.T. Munkejord, Ø. Wilhelmsen
2013 International Journal of Greenhouse Gas Control  
This is relevant not only for events like start-up, shutdown or planned or uncontrolled depressurization of pipelines, but also for normal operation, and therefore needs to be taken into account by simulation  ...  This requires special attention to depressurization and the possible propagation of cracks.  ...  Acknowledgements This publication has been produced with support from the NORDICCS Centre, performed under the Top-level Research Initiative CO 2 Capture and Storage program, and Nordic Innovation.  ... 
doi:10.1016/j.ijggc.2013.02.012 fatcat:gusxbp3aszdatgsu3hcrntuwi4

CO2 transport: Data and models – A review

Svend Tollak Munkejord, Morten Hammer, Sigurd W. Løvseth
2016 Applied Energy  
A depressurization case study based on recently published expansion-tube data is included as well. Non-equilibrium modelling of flow and phase equilibria are reviewed.  ...  Further, aspects related to the transport of CO 2 by ship are considered. Many things are known about CO 2 transport, e.g., that it is feasible and safe.  ...  The authors would like to thank Dr. Johannes Gernert and Professor Roland Span for sharing the literature database on which EOS-CG is based [27] .  ... 
doi:10.1016/j.apenergy.2016.01.100 fatcat:q7k2fg2opzb4xostjauctumzvu

Gas hydrates in sustainable chemistry

Aliakbar Hassanpouryouzband, Edris Joonaki, Mehrdad Vasheghani Farahani, Satoshi Takeya, Carolyn Ruppel, Jinhai Yang, Niall J. English, Judith M. Schicks, Katriona Edlmann, Hadi Mehrabian, Zachary M. Aman, Bahman Tohidi
2020 Chemical Society Reviews  
This review includes the current state of the art understanding and advances in technical developments about various fields of gas hydrates, which are combined with expert perspectives and analyses.  ...  Any use of trade, firm or product name is for descriptive purposes only and does not imply endorsement by the U.S. Government.  ...  J. is partially supported by Flow Programme project sponsored by Department for Business, Energy and Industrial Strategy (BEIS), UK.  ... 
doi:10.1039/c8cs00989a pmid:32567615 fatcat:ypj75fqjtfg2vhh2d55iynuxem

Thermal energy storage technologies and systems for concentrating solar power plants

Sarada Kuravi, Jamie Trahan, D. Yogi Goswami, Muhammad M. Rahman, Elias K. Stefanakos
2013 Progress in Energy and Combustion Science  
This paper discusses the thermal energy storage system designs presented in the literature along with thermal and exergy efficiency analyses of various thermal energy storage systems integrated into the  ...  Though there have been many reviews of storage media, there are not many that focus on storage system design along with its integration into the power plant.  ...  Acknowledgements This work was done as part of projects funded by USDOE (DE-EE0003590) and the Florida Energy Systems Consortium (FESC).  ... 
doi:10.1016/j.pecs.2013.02.001 fatcat:fbsb7tblgzb2vf5h6wqakkatyi

The chemical-free production of nanocelluloses from microcrystalline cellulose and their use as Pickering emulsion stabilizer

Jean Buffiere, Zoltán Balogh-Michels, Marc Borrega, Thomas Geiger, Tanja Zimmermann, Herbert Sixta
2017 Carbohydrate Polymers  
Heat transfer phenomena are also made more complex and become highly dependent on flow and boundary conditions, although a general increase in heat transfer coefficient was observed around the critical  ...  a mechanism generally controlled by mass transfer limitations 123 .  ... 
doi:10.1016/j.carbpol.2017.09.028 pmid:29050614 fatcat:v5m6nijdbrg3pgoa7drqkmag2q

Separation and Capture of CO2 from Large Stationary Sources and Sequestration in Geological Formations—Coalbeds and Deep Saline Aquifers

Curt M. White, Brian R. Strazisar, Evan J. Granite, James S. Hoffman, Henry W. Pennline
2003 Journal of the Air and Waste Management Association  
Existing commercial CO 2 capture facilities at electric power-generating stations based on the Dr. Curt M. White  ...  This review covers the separation and capture of CO 2 from both flue gas and fuel gas using wet scrubbing technologies, dry regenerable sorbents, membranes, cryogenics, pressure and temperature swing adsorption  ...  service is to facilitate understanding and does not imply endorsement by the United States Department of Energy.  ... 
doi:10.1080/10473289.2003.10466206 pmid:12828330 fatcat:hlmdwtyhzrawhlsfchb77pe5om

Homogeneous Catalysis and Mechanisms in Water and Biphasic Media

Luca Gonsalvi
2018 Catalysts  
After its discovery in the early 1980s and successful application on an industrial scale (Ruhrchemie/Rhone-Poulenc process) [...]  ...  Acknowledgments: The University of Artois is acknowledged for supporting and partially funding this work. Conflicts of Interest: The authors declare no conflict of interest.  ...  General conditions: catalyst, 1.0 × 10 −2 mmol; substrate, 1.0 mmol; HCOONa, 10.0 mmol; solvent, 6 mL. b Products confirmed by GC and GC-MS analyses. c GC values based on pure samples where available.  ... 
doi:10.3390/catal8110543 fatcat:bbvzaxtl7bd6th6jrmpqryjtfy

Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Bruno M. J. Thien, Georg Kosakowski, Dmitrii A. Kulik
2015 Geothermal Energy  
We investigated the reasons for this finding with help of geochemical reaction path calculations, by studying the mineralogical evolution of contrasting lithofacies-basalt flows and hyaloclastites at various  ...  In addition, we present a generalized kinetic model to estimate the alteration time of glassy fragments in hyaloclastite as a function of grain size, surface roughness, and temperature.  ...  the quality and the readability of this paper.  ... 
doi:10.1186/s40517-015-0031-7 fatcat:batuhbuuizegbotcoi2ykl7e2m

Review article: Polymer-matrix Nanocomposites, Processing, Manufacturing, and Application: An Overview

Farzana Hussain, Mehdi Hojjati, Masami Okamoto, Russell E. Gorga
2006 Journal of composite materials  
In addition to presenting the scientific framework for the advances in polymer nanocomposite research, this review focuses on the scientific principles and mechanisms in relation to the methods of processing  ...  and manufacturing with a discussion on commercial applications and health/safety concerns (a critical issue for production and scale-up).  ...  Her sincere appreciation is extended to Professor Kin-tak Lau, Department of Mechanical Engineering, The Hong Kong Polytechnic University and Shameem F. Akhter at the Intel Corporation, USA.  ... 
doi:10.1177/0021998306067321 fatcat:furybxgp7bh7xomhrwsg5zimti


Kifilideen Lekan Osanyinpeju
2022 Zenodo  
The Kifilideen trinomial theorem of positive power of n built on matrix and standardized procedures had been developed and implemented in company with the Kifilideen general power combination formula which  ...  This research work inaugurated Kifilideen trinomial theorem of negative power of – n by employing matrix and standardized techniques.  ...  ACKNOWLEDGMENT The Authors which to acknowledge Atul Kumar of for his numerous supports on AWS training and Certification.  ... 
doi:10.5281/zenodo.6409368 fatcat:h2mofg25dna6lavjhupclnkhxq

Thirty-eighth Annual Meeting March 6-10, 1994 New Orleans Convention Center New Orleans, Louisiana. Thursday Symposia and Posters, Part III

1994 Biophysical Journal  
The reduced Bohr effect can be accounted for on the basis of the blockage of the Bohr residues of DCLHb as result of the polymerization process. PA 19104. (Spon. by J. M. Vanderkooi).  ...  The co-crystal structure of N-terminal domain and OL1 shows a hydrogen bonding network between residues Q33, Q44, and the phosphate and base of adenine 2 of the operator.  ...  The heat pulse is generated by an infrared laser on one side of the reaction ceil and the temperature change is measured on the opossite side.  ... 
doi:10.1016/s0006-3495(94)80829-x fatcat:t52b574qs5cmlo5472bnojqfwu

Thirty-Fifth Annual Meeting February 24–28, 1991 Moscone Center San Francisco, California

1991 Biophysical Journal  
Model calculations based on the data are consistent with a photoinduced heating mechanism.  ...  An analysis of the fully hydrated DMPC data subset of LIPIDAT has been performed.  ...  , p<0.001).Kinetic studies of Na-Pi cotransport as a function of extracellular {Na] and/or [Pi] demonstrated that the adaptive increase in Na-Pi cotransport was mediated by an increase in the Vmax (21.6  ... 
doi:10.1016/s0006-3495(91)82266-4 fatcat:teatxrn4vnbfrcxnmqoo7hdquu
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