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Investigating the effect of hydrogen addition on cyclic variability in a natural gas spark ignition engine: Wavelet multiresolution analysis

Sen, Asok K.; Wang, Jinhua; Huang, Zuohua - In: Applied Energy 88 (2011) 12, pp. 4860-4866

Using wavelet-based multiresolution analysis, this study investigates the effect of hydrogen addition on cyclic … air ratio of 1.4 is used. Three cases are examined: natural gas with no hydrogen added, and natural gas with the addition … of 23% and 40% hydrogen by volume. The time series of the indicated mean effective pressure are analyzed over 192 engine …

Persistent link: https://www.econbiz.de/10011041356

Methanation of hydrogen and carbon dioxide

Burkhardt, Marko; Busch, Günter - In: Applied Energy 111 (2013) C, pp. 74-79

A new method for the methanation of hydrogen and carbon dioxide is presented. In a novel anaerobic trickle-bed reactor … hydrogen electrolysis (or other methods of hydrogen production). The combination with conventional biogas plants under hydrogen …

Persistent link: https://www.econbiz.de/10011041262

Minimal heating and cooling in a modern rose greenhouse

Van Beveren, P.J.M.; Bontsema, J.; Van Straten, G.; Van … - In: Applied Energy 137 (2015) C, pp. 97-109

In a modern greenhouse there are a number of alternative systems that can be deployed to control the climate, and the choice what to use and when is not easy for the grower. A novel management system is proposed, consisting of an energy input minimizing module, and a module to realise the...

Persistent link: https://www.econbiz.de/10011116130

Biological methanation of hydrogen within biogas plants: A model-based feasibility study

Bensmann, A.; Hanke-Rauschenbach, R.; Heyer, R.; Kohrs, F. - In: Applied Energy 134 (2014) C, pp. 413-425

One option to utilize excess electric energy is its conversion to hydrogen and the subsequent methanation. An … hydrogen into the reactor, since hydrogenotrophic bacteria are present. …

Persistent link: https://www.econbiz.de/10010930694

An effort to enhance hydrogen energy share in a compression ignition engine under dual-fuel mode using low temperature combustion strategies

Chintala, V.; Subramanian, K.A. - In: Applied Energy 146 (2015) C, pp. 174-183

A limited hydrogen (H2) energy share due to knocking is the major hurdle for effective utilization of H2 in compression …

Persistent link: https://www.econbiz.de/10011263340

Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for methane and a high hydrogen content fuel in a generic swirl burner

Syred, N.; Giles, A.; Lewis, J.; Abdulsada, M.; Valera … - In: Applied Energy 116 (2014) C, pp. 288-296

geometry and with higher hydrogen content fuels. The correlation still holds with methane and natural gas, especially with …

Persistent link: https://www.econbiz.de/10010737730

Large scale hydrogen production from wind energy for the upgrading of bitumen from oil sands

Olateju, Babatunde; Monds, Joshua; Kumar, Amit - In: Applied Energy 118 (2014) C, pp. 48-56

There is considerable interest concerning sustainable, economically competitive and environmentally benign hydrogen … production pathways. In this study, a large scale wind-hydrogen plant is assessed for the production of electrolytic hydrogen …, for the servicing of the oil sands bitumen upgrading industry in Western Canada. The wind-hydrogen plant proposed has a …

Persistent link: https://www.econbiz.de/10010743634

Using Taguchi method on combustion performance of a diesel engine with diesel/biodiesel blend and port-inducting H2

Wu, Horng-Wen; Wu, Zhan-Yi - In: Applied Energy 104 (2013) C, pp. 362-370

consumption (BSFC), NOX and smoke at each load is achieved for a combination of B20 (A2), 30% hydrogen (B3) and 40% EGR ratio (C3 …

Persistent link: https://www.econbiz.de/10010688018

Catalytic activity of Ni3S2 and effects of reactor wall in hydrogen production from water with hydrogen sulphide as a reducer under hydrothermal conditions

Wang, Yuanqing; Jin, Fangming; Zeng, Xu; Ma, Cuixiang; … - In: Applied Energy 104 (2013) C, pp. 306-309

Catalytic activity of Ni3S2 and the effects of reactor wall in the hydrogen production from water were investigated … under hydrothermal conditions using hydrogen sulphide (H2S) as a reductant. It was found that Ni3S2 catalysed the hydrogen … the maximum hydrogen yield significantly decreased and the maximum hydrogen yield increased. These results suggest that …

Persistent link: https://www.econbiz.de/10010688029

Comparison between hydrogen and electric vehicles by life cycle assessment: A case study in Tuscany, Italy

Bartolozzi, I.; Rizzi, F.; Frey, M. - In: Applied Energy 101 (2013) C, pp. 103-111

The use of hydrogen produced from renewable energy sources is often reported as an attractive strategy to address the …. The project ‘Filiera Idrogeno’ (Hydrogen Chain) has investigated the potential realisation of hydrogen production chains … for evaluating the environmental sustainability of such chains, applied to a fleet of hydrogen vehicles for urban …

Persistent link: https://www.econbiz.de/10010593985