کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1282010 | 1497687 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Light energy conversion into H2 by Anabaena variabilis mutant PK84 dense cultures exposed to nitrogen limitations Light energy conversion into H2 by Anabaena variabilis mutant PK84 dense cultures exposed to nitrogen limitations](/preview/png/1282010.png)
Concentrated cultures (25–86 mg Chl al-1) of Anabaena variabilis PK84 were incubated under 99% Ar+1%Ar+1% CO2 atmosphere in the photobioreactor made of coaxial cylinders. Under illumination equal to 353μEm-2s-1 they produced hydrogen with the rate more than 20mll-1h-1 for several days. The efficiency of light energy conversion into H2 was approx. 1% and did not depend significantly on initial Chl a concentration. H2/O2 ratio reached 41.5% of theoretical value for water photolysis. Data indicate that dense cultures might be used for outdoor systems under direct sun light. Supra-optimal temperatures 36∘C were not harmful for cultures even for 2 days period. Short-term incubation of cultures under 36∘C even increased H2 production rate and efficiency of light energy bioconversion by 1.25 times.
Journal: International Journal of Hydrogen Energy - Volume 31, Issue 11, September 2006, Pages 1591–1596