Kerf loss silicon as a cost-effective, high-efficiency, and convenient energy carrier: additive-mediated rapid hydrogen production and integrated systems for electricity generation and hydrogen storage

2016 ◽  
Vol 4 (33) ◽  
pp. 12921-12928 ◽  
Author(s):  
Tzu-Lun Kao ◽  
Wei-Hsiang Huang ◽  
Hsing-Yu Tuan
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Storage ◽  
Electricity Generation ◽  
High Efficiency ◽  
Cost Effective ◽  
Integrated System ◽  
Energy Carrier ◽  
Integrated Systems ◽  
Silicon Based

Kerf loss silicon was used for additive-mediated rapid hydrogen production with a rate of 4.72 × 10−3g(H2) per s per g(Si) and a yield of 92%. A silicon-based integrated system for electricity generation and hydrogen storage was demonstrated.

scholarly journals Possibilities of Upgrading Solid Underutilized Lingo-cellulosic Feedstock (Carob Pods) to Liquid Bio-fuel: Bio-ethanol Production and Electricity Generation in Fuel Cells - A Critical Appraisal of the Required Processes

2017 ◽  
Vol 4 (1) ◽  
pp. 25 ◽  
Author(s):  
John Vourdoubas ◽  
Vasiliki K. Skoulou
Keyword(s):  
Power Generation ◽  
Fuel Cells ◽  
Hydrogen Production ◽  
Ethanol Production ◽  
Steam Reforming ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Cost Effective ◽  
Ethanol Fuel ◽  
Steam Reforming Of Ethanol

The exploitation of rich in sugars lingo-cellulosic residue of carob pods for bio-ethanol and bio-electricity generation has been investigated. The process could take place in two (2) or three (3) stages including: a) bio-ethanol production originated from carob pods, b) direct exploitation of bio-ethanol to fuel cells for electricity generation, and/or c) steam reforming of ethanol for hydrogen production and exploitation of the produced hydrogen in fuel cells for electricity generation. Surveying the scientific literature it has been found that the production of bio-ethanol from carob pods and electricity fed to the ethanol fuel cells for hydrogen production do not present any technological difficulties. The economic viability of bio-ethanol production from carob pods has not yet been proved and thus commercial plants do not yet exist. The use, however, of direct fed ethanol fuel cells and steam reforming of ethanol for hydrogen production are promising processes which require, however, further research and development (R&D) before reaching demonstration and possibly a commercial scale. Therefore the realization of power generation from carob pods requires initially the investigation and indication of the appropriate solution of various technological problems. This should be done in a way that the whole integrated process would be cost effective. In addition since the carob tree grows in marginal and partly desertified areas mainly around the Mediterranean region, the use of carob’s fruit for power generation via upgrading of its waste by biochemical and electrochemical processes will partly replace fossil fuels generated electricity and will promote sustainability.

Efficient Solar Thermal Processes From Carbon Based to Carbon Free Hydrogen Production

Solar Energy ◽  
2006 ◽  
Author(s):  
Christian Sattler ◽  
Martin Roeb ◽  
Nathalie Monnerie ◽  
Daniela Graf ◽  
Stephan Mo¨ller
Keyword(s):  
Hydrogen Production ◽  
Large Scale ◽  
Coal Gasification ◽  
Cost Effective ◽  
Energy Carrier ◽  
Solar Thermal ◽  
Thermal Processes ◽  
The Future ◽  
Free Hydrogen ◽  
Renewable Hydrogen

The potential of hydrogen to be the energy carrier of the future is widely accepted. Today more than 90% of hydrogen is produced by cost effective technologies from fossil sources mainly by steam reforming of natural gas and coal gasification. But hydrogen is not important as an energy carrier yet — it is mainly a chemical. To finally benefit from hydrogen as a fuel it has to be produced greenhouse gas free in large quantities. Therefore these two tasks have to be connected by a strategy incorporating transition steps. Solar thermal processes have the potential to be the most effective alternatives for large scale hydrogen production in the future. Therefore high temperature solar technologies are under development for the different steps on the stair to renewable hydrogen. This paper discusses the strategy based on the efficiencies of the chosen solar processes incorporating carbonaceous materials as well as processes based on water splitting. And the availability of the technologies. A comparison with the most common industrial processes shall demonstrate which endeavors have to be done to establish renewable hydrogen as a fuel.

scholarly journals Cost Effective, High Efficiency Integrated Systems Approach To Auxiliary Electric Motors

2003 ◽  
Author(s):  
Roy Kessinger ◽  
Kanchan Angal ◽  
Steve Brewer ◽  
Steve Kraihanzel ◽  
Lenny Schrank ◽  
...  
Keyword(s):  
High Efficiency ◽  
Systems Approach ◽  
Cost Effective ◽  
Integrated Systems ◽  
Electric Motors

scholarly journals Cost Effective, High Efficiency Integrated Systems Approach to Auxilliary Electric Motors

2003 ◽  
Author(s):  
Roy Kessinger Jr. ◽  
Keith Seymour ◽  
Kanchan Angal ◽  
Jason Wolf ◽  
Steve Brewer ◽  
...  
Keyword(s):  
High Efficiency ◽  
Systems Approach ◽  
Cost Effective ◽  
Integrated Systems ◽  
Electric Motors

Assessment of Electricity Generation on Different Inorganic and Metallic Embedded in Solar Photovoltaic Panels: Cases of Thailand

2015 ◽  
Vol 658 ◽  
pp. 101-105
Author(s):  
Prachuab Peerapong ◽  
Bundit Limmeechokchai
Keyword(s):  
Thin Film ◽  
Solar Radiation ◽  
Electricity Generation ◽  
Large Scale ◽  
High Efficiency ◽  
Solar Irradiation ◽  
Solar Pv ◽  
High Solar Radiation ◽  
Pv Modules ◽  
Silicon Based

Photovoltaic (PV) has recently undergone impressive growth and substantial cost decreases. Basically wafer-based crystalline-Si PV technologies have the advantage of higher module efficiency as compared to thin-film PV, but thin-film PV has the advantage of lower production cost. The silicon-based solar PV needs light-induced charge separation at the p-n junction between two slices (wafers) of doped silicon in either single-crystal silicon (sc-Si) or polycrystalline (poly-Si). However until recently thin-film PV modules both amorphous silicon (a-Si) and non-silicon thin film technology have been advantageous developed. Metallic based modules such as cadmium telluride, CdTe and copper indium gallium diselenide, CIGS thin-film PV technologies have currently efficiencies of 16.1% and 15.7%, respectively. A high efficiency makes thin-film PV technologies more competitive with wafer-based crystalline-Si PV. This study investigates the electricity generation of both silicon based and non-silicon based solar PV modules. The implementation uses solar irradiation with average of higher than 18 MJ/m2.day in high solar radiation provinces in Thailand. A High solar radiation is observed in mostly in central and the east regions of the country. The result shows that the commercial amorphous PV module is appropriate for large scale installation while wafer-based crystalline-Si PV can be installed both in cases of solar rooftop and solar PV farm. Thin-film PV modules both silicon based (a-Si) and non-silicon based is basically appropriate for small installation such as solar rooftop and building integrated PV (BIPV). But in the near future the metallic based PV modules will be competitive with crystalline-Si PV in terms of both efficiency and with its lower cost.

Hydrogen Production from Bioinspired Methanol Reforming at Room Temperature

2021 ◽  
Author(s):  
Yangbin Shen ◽  
Luqi Wang ◽  
Ziwen Xu ◽  
Yulu Zhan
Keyword(s):  
Energy Density ◽  
Hydrogen Production ◽  
Hydrogen Storage ◽  
Room Temperature ◽  
Energy Carrier ◽  
Methanol Reforming

hydrogen is a promising energy carrier for its high gravimetric energy density and extensive sources. But there are still challenges for hydrogen storage and transportation due to its combustibility and...

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