کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7066056 | 1459877 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical simulation on promoting light/dark cycle frequency to improve microalgae growth in photobioreactor with serial lantern-shaped draft tube
ترجمه فارسی عنوان
شبیه سازی عددی در ترویج فرکانس چرخه نور / تاریک برای بهبود رشد میکروالگا در فتو بیوراکتور با فضای خالی پیش ساخته
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Computational fluid dynamics were employed to simulate microalgal cells movement with enhanced flash-light effects in a gaslift loop-current column photobioreactor (GLCP) with serial lantern-shaped draft tube (LDT). Clockwise and anticlockwise vortexes were formed in outer down-flow region of GLCP with LDT. The radial velocity, axial velocity, and turbulent kinetic energy of microalgal solution appeared periodical change around the lanterns. The average radial velocity showed a sixfold improvement from 0.003â¯m/s to 0.021â¯m/s, and average turbulent kinetic energy was enhanced by 18.2% from 22.5â¯Ãâ¯10-4â¯m2/s2 to 26.6â¯Ãâ¯10-4â¯m2/s2, thus increasing light/dark cycle frequency by 54%. The light/dark cycle frequency increased first and then decreased with an increase of individual lantern height. The increased lantern number promoted the light/dark cycle frequency and light time ratio. Microalgal biomass yield in the GLCP with LDT was improved by 30%, and CO2 fixation peak rate was promoted by 35%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 266, October 2018, Pages 89-96
Journal: Bioresource Technology - Volume 266, October 2018, Pages 89-96
نویسندگان
Qing Ye, Jun Cheng, Wangbiao Guo, Junchen Xu, Hui Li, Junhu Zhou,