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New kinetic model of coal tar hydrogenation process via carbon number component approach
Dai, Fei; Gong, Maoming; Li, Chunshan; Li, Zengxi; … - In: Applied Energy 137 (2015) C, pp. 265-272
Hydrogenation technology is an important chemical upgrading process for low quality oil such as coal tar. Kinetic modeling for hydrogenation process remains a challenging task because of the large amount of compounds and complex reactions involved. Therefore, a new systematic methodology is...
Persistent link: https://www.econbiz.de/10011116179
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A sandwich structured membrane for direct methanol fuel cells operating with neat methanol
Wu, Q.X.; Zhao, T.S.; Chen, R.; An, L. - In: Applied Energy 106 (2013) C, pp. 301-306
Water starvation at the anode represents a challenging issue in the development of direct methanol fuel cells (DMFCs) operating with neat methanol. To tackle the issue, a multi-layered membrane, consisting of an ultra-thin reaction layer sandwiched between two thin membranes, is proposed and...
Persistent link: https://www.econbiz.de/10010662363
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Peat emission control by groundwater management and soil amendments: evidence from laboratory experiments
Husen, Edi; Salma, Selly; Agus, Fahmuddin - In: Mitigation and Adaptation Strategies for Global Change 19 (2014) 6, pp. 821-829
Peat respiration that releases carbon dioxide (CO<Subscript>2</Subscript>) to the atmosphere contributes to regional and global change. Aeration associated with soil water content levels controls emission rates, but soil amendments might mitigate respiration. The objectives of this study were to examine the effects of...</subscript>
Persistent link: https://www.econbiz.de/10010994749
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Strength behavior of slip-zone soils of landslide subject to the change of water content
Nian, Ting-Kai; Feng, Zhong-Kai; Yu, Peng-Cheng; Wu, Hui-Jun - In: Natural Hazards 68 (2013) 2, pp. 711-721
Landslides are the major natural hazards in many countries all over the world and are usually caused by heavy rainfall, water level change of reservoir, excavation, earthquake, etc. Whether the landslide occurs or not in rainfall season, the strength variation of slip-zone soils of landslide is...
Persistent link: https://www.econbiz.de/10010995733
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Modelling and experimental validation of thin layer indirect solar drying of mango slices
Dissa, A.O.; Bathiebo, J.; Kam, S.; Savadogo, P.W.; … - In: Renewable Energy 34 (2009) 4, pp. 1000-1008
The thin layer solar drying of mango slices of 8mm thick was simulated and experimented using a solar dryer designed and constructed in laboratory. Under meteorological conditions of harvest period of mangoes, the results showed that 3 “typical days” of drying were necessary to reach the...
Persistent link: https://www.econbiz.de/10011044763
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The effect of fuel cell operational conditions on the water content distribution in the polymer electrolyte membrane
Tavakoli, B.; Roshandel, R. - In: Renewable Energy 36 (2011) 12, pp. 3319-3331
Models play an important role in fuel cell design and development. One of the critical problems to overcome in the proton exchange membrane (PEM) fuel cells is the water management. In this work a steady state, two-dimensional, isothermal model in a single PEM fuel cell using individual...
Persistent link: https://www.econbiz.de/10011045146
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Transesterification of crude Jatropha oil by activated carbon-supported heteropolyacid catalyst in an ultrasound-assisted reactor system
Badday, Ali Sabri; Abdullah, Ahmad Zuhairi; Lee, Keat-Teong - In: Renewable Energy 62 (2014) C, pp. 10-17
Transesterification of crude Jatropha oil in presence of tungstophosphoric acid (TPA) supported on activated carbon (AC) using ultrasound-assisted process was investigated. The generated catalysts were characterized for physical and chemical properties to examine the effects of different TPA...
Persistent link: https://www.econbiz.de/10011045921
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Japan; Spillover Report for the 2011 Article IV Consultation and Selected Issues
International Monetary Fund (IMF); International … - 2011
Japan’s position is one of the largest and richest economies in the world. Tokyo as a financial marketplace is not a major intermediator of global capital flows. The current macroeconomic environment is conducive to spillovers being larger than captured by the empirical analysis. Apart...
Persistent link: https://www.econbiz.de/10011244326
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Exergy, Economic and Environmental Analysis for Simple and Combined Heat and Power IC Engines
Aliehyaei, Mehdi; Atabi, Farideh; Khorshidvand, Mohammad; … - In: Sustainability 7 (2015) 4, pp. 4411-4424
internal combustion engines. Values of entropy production, second law efficiency are calculated, and an objective function …<sub>2</sub>, CO and NO<sub>x</sub>, are presented for the flue gas of the internal combustion engine. The results show that … entropy generation in the combined heat and power mode is 30% lower than that in the simple internal combustion engine. Also …
Persistent link: https://www.econbiz.de/10011254947
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Natural gas fueled compression ignition engine performance and emissions maps with diesel and RME pilot fuels
Imran, S.; Emberson, D.R.; Diez, A.; Wen, D.S.; … - In: Applied Energy 124 (2014) C, pp. 354-365
obtain performance and emissions maps.Two pilot fuels, diesel and RME, have been used to pilot natural gas combustion. The … fueling differ significantly when these fuels were used to pilot natural gas combustion. For both of the single fueling cases …
Persistent link: https://www.econbiz.de/10010789871