کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7082242 | 1460001 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of dynamic oxygen concentrations on the growth of Neochloris oleoabundans at sub-saturating light conditions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of dynamic oxygen concentrations on the growth of Neochloris oleoabundans at sub-saturating light conditions Effect of dynamic oxygen concentrations on the growth of Neochloris oleoabundans at sub-saturating light conditions](/preview/png/7082242.png)
چکیده انگلیسی
In tubular photobioreactors micro-algae continuously experience dynamically changing oxygen and light conditions when circulating from the solar receiver to the dark degasser. These changes in oxygen concentration and light were simulated in a CSTR using sub-saturating light intensity. Elongation of the residence time in the solar receiver from 30 to 300 min was also investigated. Specific growth rates measured at constant low oxygen concentration PO2 = 0.21 bar were; 1.14 ± 0.06 dayâ1 using continuous light 0.80 ± 0.16 dayâ1 with 30 min light and 1.09 ± 0.05 dayâ1 with 300 min light. The effect of dynamically changing oxygen concentrations from PO2 = 0.21 to 0.63 bar followed by degassing resulted in similar specific growth rates. The exposure of the algae cells to dark periods in the degasser has a bigger negative impact than the temporary exposure to accumulating oxygen concentrations in the solar receiver. This shows that considerable energy savings for degassing are possible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 142, August 2013, Pages 95-100
Journal: Bioresource Technology - Volume 142, August 2013, Pages 95-100
نویسندگان
Claudia Sousa, Dimitar Valev, Marian H. Vermuë, Rene H. Wijffels,