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Numerical study of the effects of wire insertion on CH4(methane)/AIR pre-mixed flame in a micro combustor

Baigmohammadi, Mohammadreza; Sarrafan Sadeghi, Soroush; … - In: Energy 54 (2013) C, pp. 271-284

In this study, an approach to modify and improve of CH4(methane)/air pre-mixed flame in a micro-stepped tube combustor … in comparison to the simple backward facing step method. The wire insertion method improves the combustion process by …

Persistent link: https://www.econbiz.de/10010807805

Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier

Lv, Pengmei; Yuan, Zhenhong; Ma, Longlong; Wu, Chuangzhi; … - In: Renewable Energy 32 (2007) 13, pp. 2173-2185

characteristics of hydrogen production from biomass gasification. Air and oxygen/steam are utilized as the gasifying agents. The … experimental results indicate that compared to biomass air gasification, biomass oxygen/steam gasification improves hydrogen yield …Biomass gasification is an important method to obtain renewable hydrogen. However, this technology still stagnates in a …

Persistent link: https://www.econbiz.de/10010805187

Analysis of process related factors to increase volumetric productivity and quality of biomethane with Methanothermobacter marburgensis

Seifert, A.H.; Rittmann, S.; Herwig, C. - In: Applied Energy 132 (2014) C, pp. 155-162

The biological conversion of H2 and CO2 into CH4, using methanogenic archaea is an interesting technology for CO2 conversion, energy storage and biogas upgrading. For an industrial application of this process however, the optimization of the volumetric productivity and the product quality is an...

Persistent link: https://www.econbiz.de/10010930677

Geographical Spread of Global Emissions: Within-country Inequalities Are Increasing

Sauter, Caspar; Grether, Jean-Marie; Mathys, Nicole A. - Institut de recherches économiques (IRENE), Faculté … - 2015

The major greenhouse gases, CO2 and CH4, are uniformly mixing, but spatial inequalities in emissions do matter in terms of both efficiency and equity of environmental policy formation and implementation. As the recent evidence has mainly focused on convergence issues between countries, this...

Persistent link: https://www.econbiz.de/10011118272

The influences of pressure and temperature on laminar flame propagations of n-butanol, iso-octane and their blends

Liu, Kaimin; Fu, Jianqin; Deng, Banglin; Yang, Jing; … - In: Energy 73 (2014) C, pp. 703-715

flames of fuels still deserves more attentions and investigations. Our investigation is expected to make a step on the …

Persistent link: https://www.econbiz.de/10010906866

Numerical study of effect of operating and design parameters for design of steam reforming reactor

Hong, Sung Kook; Dong, Sang Keun; Han, Jeong Ok; Lee, … - In: Energy 61 (2013) C, pp. 410-418

catalyst layer length induces a decrease in H2 (hydrogen) concentration as well as pressure loss. An increased number of tubes …

Persistent link: https://www.econbiz.de/10010809511

NETWORKED FACILITIES EXPANSION PROBLEM

COX, LOUIS ANTHONY; BABAYEV, DJANGIR A. - In: International Journal of Information Technology & … 05 (2006) 02, pp. 379-396

This paper considers how best to sequence the acquisition of new locations (e.g. office park buildings, multi-tenant units, etc.) to expand the coverage area or fill in the geographic footprint of a network service provider or other business-service activities. Consider several locations,...

Persistent link: https://www.econbiz.de/10005060092

Asymptotic Representation Of The Instrumental Weighted Variables - Theory And Practice: Part I - deriving the formula for the asymptotic representation.

Víšek, Jan - In: Bulletin of the Czech Econometric Society 21 (2014)

<p>The robust version of the classical instrumental variables, called Instrumental Weighted Variables (IWV) and the conditions for its consistency and $\sqrt{n}$-consistency are recalled. The reasons why the classical instrumental variables as well as IWV were introduced and the idea of...</p>

Persistent link: https://www.econbiz.de/10011152546

Thermal analysis of novel minichannel-based solar flat-plate collector

Khamis Mansour, M. - In: Energy 60 (2013) C, pp. 333-343

This paper investigates thermal performance of a new design of minichannel-based solar flat-plate collector. The solar collector consists of an array of minichannels located in the absorber plate which is covered by single glass cover. Water was used as the working fluid. A numerical model was...

Persistent link: https://www.econbiz.de/10011054976

Numerical Study on Heat Transfer Deterioration of Supercritical n-Decane in Horizontal Circular Tubes

Wang, Yanhong; Li, Sufen; Dong, Ming - In: Energies 7 (2014) 11, pp. 7535-7554

In order to obtain a deeper understanding of the regenerative cooling process of scramjet engines, in this paper, a numerical investigation on the supercritical convective heat transfer of n-decane in horizontal circular tubes was conducted, based on a complete set of conservation equations and...

Persistent link: https://www.econbiz.de/10011075173

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