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Modeling of Biogas Tri-Reforming for Hydrogen Production Mathieu Mahougnon KAKPO1,a*, Safiou BOURAÏMA1,b, Evrard Karol EKOUEDJEN1,c, Gaston GANHOUN1,d, Farid ADAMON2,e, Latif Adéniyi FAGBEMI1,f 1Laboratory of Applied Energetic and Mechanic (LEMA), Polytechnic School of Abomey-Calavi (EPAC), University of Abomey-Calavi (UAC), 01 POB: 2009 Cotonou, Benin 2Laboratory of Processes and Technological Innovation (LaPIT), National Higher Institute of Industrial Technology (INSTI), National University of Sciences, Technologies, Engineering and Mathematics of Abomey (UNSTIM), Benin akakpo.iut@gmail.com, bboursafiou@gmail.com, cekouedjen92@gmail.com, ddubosganhoun@gmail.com, eadamfaridavid07@yahoo.fr, fadamfaridavid07@yahoo.fr, Keywords: tri-reforming, biogas, hydrogen selectivity, renewable energy, biomass, mathematical model.
First Zone v Material Balance in the First Zone Fig. 2.
Fi: incoming flux of species i (CH4, CO2, H2O, O2) [mol/s] dFi: flow variation The material balance on this reaction scheme is given by the following relation (accumulation = 0): Fi+Ridv= Fi+dFi (1) And since tri-reforming uses multiple chemical reactions, the production speed of any species i is given by the relation (2) below: Ri=vi,jrj (2) With: j the reaction, rj the speed of reaction j and vi,j the stoichiometric coefficient (i identifies the species and j the reactions)
v Dihydrogen Molecules (H2) Variation in the Permeation Zone Material balance on permeate.
Thanks also to the Managing Editor, the executive agents of the journal, and the reviewers for their suggestions to improve the quality of the article.

The syngas can be produced using CO2 as one of the starting materials.
A concept similar to that used for the thermochemical production of H2 from H2O using metal oxide materials and the heat generated from solar furnaces to heat these materials could be applied for CO2 too (eqs. 16 to 18) [242-244].
Oil & Gas Journal, 12 (April) (2004) 53
Nowotny, Materials for photoelectrochemical energy conversion, Adv.
Miseki, Heterogeneous photocatalyst materials for water splitting, Chem.

Material and Experimental Procedure In this study, the diesel engine was fuelled with 6 different fuel blends: 100% diesel fuel (DF); 100% rapeseed methyl ester (RME); 80% diesel fuel - 20% pure rapeseed oil (RO20); 50% diesel fuel - 50% pure rapeseed oil (RO50); 25% diesel fuel 75% pure rapeseed oil (RO75); 100% pure rapeseed oil (RO100).
[21] Bhupendra, S.C., Naveen, K., Haeng, M.C., Performance and emission studies on an agriculture engine on neat Jatropha oil, Journal of Mechanical Science and Technology 24 (2), (2010) 529-535

Mathematics, SPMVV, Tirupati, India 2Dept. of Mathematics, SAS, Vellore Institute of Technology, Vellore, India 3Faculty of Military science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa agsarojamma@gmail.com, bjyothikrishna2381@gmail.com, ckatasreelakshmi@gmail.com, dpvsatya8@yahoo.co.in,emakinded@gmail.com Keywords: Maxwell fluid, homogeneous-heterogeneous reaction, variable thickness, variable thermal conductivity Abstract.
It also helps to reduce the weight of auxiliary element and facilitates better utilization of material.
Journal of Mechanical Engineering, 7(3) (2018), 1000307 (10pages)

Economic, safe and optimized strategy of operation of transformer in parallel considering the hot-spot temperature Zhimin He1,a, Yadong Liu2,b, Wen Shen 2,c,*, Xuri Sun3,Hongjie Wang4, Gehao Sheng2, Xiuchen Jiang2 1Shanghai University of Engineering Science; 333 Longteng RD.
Then the hot spot temperature is the sum of top oil temperature and hot spot temperature rise: (13) At the same time, the calculation method of relative aging rate is given in GB/1094.7 (Given being consistent with the IEEE standard, heating modified paper material method is adopted, and the hot spot temperature limitation is defined as 110℃
O’Grady: Power Engineering Journal, Mar (1990), p. 87-93

Another feature of the configuration part is the integrated sensitivity analysis for cost for personnel, material as well as productivity and variations in currency exchange.
Sing, Gamification: A Strategic Tool for Organizational Effectiveness, ANVESHAK International Journal of Management, Vol.1, No.1 (2012) 108-114
Leung, Gamifying Collaborative Decision Making, Department of Computer Science, University of Toronto, 2012

The value of γ varies from 0-1, depends on different materials.
Suresh, Fatigue of Materials, Cambridge University Press, Cambridge, England 1998
Schijve, Fatigue of Structures and Materials, Springer Science & Business Media, 2001
Topper, Stress- strain function for the fatigue of metals, Journal of Materials 5 (1970) 767–778
[149] Maierhofer J, Pippan R, Gänser HP, Modified NASGRO equation for short cracks and application to the fitness-for-purpose assessment of surface-treated components, Procedia materials science (2014) 930-5

A quadratic contact element passing the patch test Duc-Tue Nguyen1,a, Gast Rauchs2,b, and Jean-Philippe Ponthot3,c 1 Automotive Research & Development Centre, Bosch Vietnam, 364 Cong Hoa Street, Ward 13, Tan Binh District, Hochiminh City, Vietnam 2 Department of Materials Research and Technology, Luxembourg Institute of Science and Technology, 41 Brillstrooss, L-4422 Bieles, Luxembourg 3LTAS-MN2L-Non Linear Computational Mechanics, Department of Aerospace and Mechanical Engineering, University of Liège, Allee de la Decouverte 13a, 4000 Liège, Belgium atue.nguyenduc@vn.bosch.com, bgaston.rauchs@list.lu, cjp.ponthot@ulg.ac.be Keywords: numerical simulation, virtual slave node method, node-to-segment, patch test, quadratic contact element, penalty algorithm.
The two rectangular blocks are made of identical elastic materials.
Both cylinders are made of the same elastic material.
The material properties are given in Tab. 7.
Journal of Computational and Applied Mathematics 246, 195-205 (2013) [13] Papadopoulos, P., Taylor, R.L.: A mixed formulation for the finite element solution of contact problems.

In order to ensure the blades to bear alternating dynamic stresses which was caused by renegade or backward flow on small flow condition, the material, shape and connection type of blades were selected suitably so that the last stage blade were of high intensity, stiffness and a better damping characteristic.
Journal of Shanghai University of Electric Power[J], 2009,vol25(6):543-546(In Chingese)
Journa l of Shenyang Institute of Engineering (Natural Science) [J], 2010,vol6(1):10-12(In Chingese)

Environment is categorized into two: one is material environment comprised of pure substance like an empty plaza; the other one is comprehensive environment comprised of both activities and substance.
Acknowledgements This work was financially supported by Natural Science Foundation of China, program name is Research on Urban Community Service Facilities Space Mode Based on Locational Discrepancy – Take Hefei as An Example (51108147).
Chen: Statistical Investigation and Analysis of Chongqing People’s Square [J] (Architectural Journal, April 1999) [8] H.