Prospects
for the role of magnesium in solar-hydrogen energy-system
|
Type
|
Journal
Article
|
|
Author
|
Hussein
K. Abdel-Aal
|
|
Author
|
Cairo, Egypt National Research Center
|
|
URL
|
|
|
Volume
|
40
|
|
Issue
|
3
|
|
Pages
|
1408-1413
|
|
Publication
|
International
Journal of Hydrogen Energy
|
|
Date
|
January
21, 2015
|
|
Abstract
|
Energy
systems using solar energy to split water to produce hydrogen can store solar
energy in the form of hydrogen, an ideal energy-carrier. However the problem
remains as to how.to store and transport hydrogen to end users. The proposed
energy scheme uses solar to vaporize a dynamic stream of pre-concentrated sea
water (brine) flowing along an inclined Preferential Salt Separator (P.S.S.).
The evaporation process occurs by direct solar radiation or by using a
heating system powered by a photovoltaic source.
Magnesium chloride salts soluble in sea water, separates as end product. Fresh water is produced as a byproduct. Anhydrous magnesium chloride is collected and then electrolyzed next to produce magnesium metal using energy generated by solar power. Once produced, magnesium represents a reliable source of stored energy that could be exported by air, sea or other means of transportation to remote locations for power-generation. Magnesium is used on site, to construct a galvanic cell that consists of magnesium/iron electrodes generating electricity. Water introduced to the cell is electrolyzed to produce hydrogen. |
No comments:
Post a Comment