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Modeling knocking combustion in hydrogen assisted compression ignition diesel engines
Maghbouli, Amin; Yang, Wenming; An, Hui; Shafee, Sina; … - In: Energy 76 (2014) C, pp. 768-779
In the present study, effects of hydrogen induction on combustion characteristics of a compression ignition diesel … defining number of critical local regions within the CFD (computational fluid dynamics) computational domain for a hydrogen … diesel and hydrogen fuels were used enabling detailed chemistry predictions. After validation of the model for extensive …
Persistent link: https://www.econbiz.de/10010939848
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Energy modeling and analysis for optimal grid integration of large-scale variable renewables using hydrogen storage in Japan
Komiyama, Ryoichi; Otsuki, Takashi; Fujii, Yasumasa - In: Energy 81 (2015) C, pp. 537-555
the grid management; as one of technical countermeasures, hydrogen storage receives much attention, as well as … the optimal grid integration of large-scale VRs using hydrogen storage in Japan by developing a high time …-resolution optimal power generation mix model. Simulation results suggest that the installation of hydrogen storage is promoted by both …
Persistent link: https://www.econbiz.de/10011209460
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Simulation of energy conversion in a plant of photocatalysts water splitting for hydrogen fuel
Nong, Guangzai; Li, Ming; Chen, Yiyi; Zhou, Zongwen; … - In: Energy 81 (2015) C, pp. 471-476
Hydrogen is a kind of green fuel, and is considered as the substitute oil fuel for future. Although many of literature … plant for 1000 m3 hydrogen fuels. In where, the efficiencies of hydrogen fuel generation are 29.9%, 15.6%, 10.5% and 7 … respectively; and the ratio between the combustion heat of generated hydrogen fuels and the total electric energy consumption is …
Persistent link: https://www.econbiz.de/10011209463
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Assessment of olive wastes as energy source: pyrolysis, torrefaction and the key role of H loss in thermal breakdown
Volpe, Roberto; Messineo, Antonio; Millan, Marcos; … - In: Energy 82 (2015) C, pp. 119-127
The present work describes the first stage of a multi-stage process seeking to develop a usable and cheap design for a downdraft gasifier fed with lingo-cellulosic olive waste. The thermochemical behaviour of two types of olive waste has been assessed during pyrolysis and torrefaction...
Persistent link: https://www.econbiz.de/10011209528
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Biomass/coal steam co-gasification integrated with in-situ CO2 capture
Masnadi, Mohammad S.; Grace, John R.; Bi, Xiaotao T.; … - In: Energy 83 (2015) C, pp. 326-336
 °C) cycles were performed in an atmospheric pilot scale bubbling fluidized bed reactor. Hydrogen production was enhanced …
Persistent link: https://www.econbiz.de/10011264375
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Advances in hydrogen production by thermochemical water decomposition: A review
Rosen, Marc A. - In: Energy 35 (2010) 2, pp. 1068-1076
Hydrogen demand as an energy currency is anticipated to rise significantly in the future, with the emergence of a … hydrogen economy. Hydrogen production is a key component of a hydrogen economy. Several production processes are commercially … other hydrogen production processes. Recent advances in hydrogen production by thermochemical water decomposition are …
Persistent link: https://www.econbiz.de/10010807569
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Combustion characteristics of a small-scale combustor with a percolated platinum emitter tube for thermophotovoltaics
Li, Yueh-Heng; Chen, Guan-Bang; Cheng, Tsarng-Sheng; … - In: Energy 61 (2013) C, pp. 150-157
A small-scale combustor is one of the most important components in developing the small-scale thermophotovoltaic (TPV) power systems. In order to enhance the flame stabilization and to have a bright incandescent emitter, a platinum tube is used to serve as an emitter. However, a bright...
Persistent link: https://www.econbiz.de/10010807642
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Fuel saving, carbon dioxide emission avoidance, and syngas production by tri-reforming of flue gases from coal- and gas-fired power stations, and by the carbothermic reduction of i...
Halmann, M.; Steinfeld, A. - In: Energy 31 (2006) 15, pp. 3171-3185
production of syngas suitable for methanol, hydrogen, or ammonia synthesis. The environmental and economic consequences are …
Persistent link: https://www.econbiz.de/10010807704
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Potential options to greenize energy systems
Dincer, Ibrahim; Zamfirescu, Calin - In: Energy 46 (2012) 1, pp. 5-15
In this paper, we introduce a new thermodynamic concept of greenizing energy systems and propose a new greenization factor which is defined as the amount of environmental impact reduction by the system greenized divided by the reference environmental impact for the original (reference) case. A...
Persistent link: https://www.econbiz.de/10010807751
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Energy and exergy analyses of a new four-step copper–chlorine cycle for geothermal-based hydrogen production
Tolga Balta, M.; Dincer, Ibrahim; Hepbasli, Arif - In: Energy 35 (2010) 8, pp. 3263-3272
In this paper, energy and exergy analyses of the geothermal-based hydrogen production via thermochemical water …
Persistent link: https://www.econbiz.de/10010807811