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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

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

Fuel cell-based cogeneration system covering data centers’ energy needs

Guizzi, Giuseppe Leo; Manno, Michele - In: Energy 41 (2012) 1, pp. 56-64

The Information and Communication Technology industry has gone in the recent years through a dramatic expansion, driven by many new online (local and remote) applications and services. Such growth has obviously triggered an equally remarkable growth in energy consumption by data centers, which...

Persistent link: https://www.econbiz.de/10010807862

Assessment of maximum available work of a hydrogen fueled compression ignition engine using exergy analysis

Chintala, Venkateswarlu; Subramanian, K.A. - In: Energy 67 (2014) C, pp. 162-175

) of a dual-fuel diesel engine (H2 (hydrogen)–diesel) using exergy analysis. The maximum available work increased with H2 …

Persistent link: https://www.econbiz.de/10010808407

Availability analysis of hydrogen/natural gas blends combustion in internal combustion engines

Rakopoulos, C.D.; Scott, M.A.; Kyritsis, D.C.; … - In: Energy 33 (2008) 2, pp. 248-255

Possibly one of the most significant advantages that hydrogen may have as a fuel is its potential for increased second … hydrocarbon-based fuels. A computational investigation of this effect is pursued for the case of mixtures of hydrogen and natural … function of hydrogen content of the fuel and the operating parameters of the engine. Of particular importance is the …

Persistent link: https://www.econbiz.de/10010810171

Exergy analysis: An efficient tool for understanding and improving hydrogen production via the steam methane reforming process

Hajjaji, Noureddine; Pons, Marie-Noëlle; Houas, Ammar; … - In: Energy Policy 42 (2012) C, pp. 392-399

Exergy analysis has been shown to be an efficient tool for understanding and improvement of industrial processes. In the present study, exergy analysis has been used to examine the energy consumption of an existing Steam Methane Reforming (SMR) process and then to test for possible savings in...

Persistent link: https://www.econbiz.de/10011046835

Energy and exergy analysis of hydrogen-oriented coal gasification with CO2 capture

Liszka, Marcin; Malik, Tomasz; Manfrida, Giampaolo - In: Energy 45 (2012) 1, pp. 142-150

Coal gasification is seen as an attractive way for hydrogen production. The main advantage of this approach is the low …, pressure-swing adsorption process for hydrogen separation, combined cycle for power production and essential auxiliary … loss takes place in the gasifier. The overall exergy efficiency of the coal-to-hydrogen system is equal to ca. 57%, while …

Persistent link: https://www.econbiz.de/10011052964

Exergetic evaluation of 5 biowastes-to-biofuels routes via gasification

Sues, Anna; Juraščík, Martin; Ptasinski, Krzysztof - In: Energy 35 (2010) 2, pp. 996-1007

gas), methanol, Fischer–Tropsch fuels, hydrogen, as well as heat and electricity, from several biowastes generated in the … synthesis is preferred when exergetic efficiency is the objective parameter, but hydrogen process is more efficient when the …

Persistent link: https://www.econbiz.de/10011054406

Exergy based performance analysis of hydrogen production from rice straw using oxygen blown gasification

Bhattacharya, Atmadeep; Das, Anirban; Datta, Amitava - In: Energy 69 (2014) C, pp. 525-533

An exergetic analysis has been performed on a gasification-based bio-hydrogen generation system consisting of an ASU … operating parameters on the hydrogen yield and cold gas efficiency. It is observed that, with 95% oxygen in the gasifying agent … and with gasifier equivalence ratio of 4.0, the process generates 107.8 g hydrogen per kg of dry biomass (on ash free …

Persistent link: https://www.econbiz.de/10011055731

Domestic distributed power generation: Effect of sizing and energy management strategy on the environmental efficiency of a photovoltaic-battery-fuel cell system

Bruni, G.; Cordiner, S.; Mulone, V. - In: Energy 77 (2014) C, pp. 133-143

The maximum exploitation of local renewable energy sources is a key feature of DG (Distributed Generation) systems: to this aim, HPSs (Hybrid Power Systems), integrating renewable and non-renewable power sources with local energy storage may represent an effective solution, although they may...

Persistent link: https://www.econbiz.de/10011077672