کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4996448 1368269 2018 7 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Alternatively permutated conic baffles generate vortex flow field to improve microalgal productivity in a raceway pond
ترجمه فارسی عنوان
متناوبا بلوک های مخروطی مجدد موجب ایجاد میدان جریان گرداب برای بهبود بهره وری میکروالگل در یک حوضچه مسابقه می شوند
کلمات کلیدی
سوپاپهای مخروطی جریان ویرانه؛ Microalgae؛ تولید حباب؛ جابجایی عظیم؛
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


- Alternatively permutated conic baffles were proposed to generate vortex flow field.
- Both clockwise vortexes were generated before and after baffles on vertical section.
- Horizontal self-rotary flow around baffles and vortex among baffles were generated.
- Bubble generation time and diameter decreased while bubble residence time increased.
- Biomass productivity of Spirulina increased 39.6% with baffles in a raceway pond.

Alternatively permutated conic (APC) baffles were proposed to generate vertical and horizontal vortex flow to intensify mixing and mass transfer in a raceway pond. Both clockwise vortexes were generated before and after conic baffles in the main stream to increase perpendicular velocity by 40.3% and vorticity magnitude by 1.7 times on vertical cross section. Self-rotary flow around conic baffles and vortex flow among conic baffles were generated to increase perpendicular velocity by 80.4% and vorticity magnitude by 4.2 times on horizontal cross section. The bubble generation time and diameter decreased by 25.5% and 38.7%, respectively, while bubble residence time increased by 84.3%. The solution mixing time decreased by 48.1% and mass transfer coefficient increased by 34.0% with optimized relative spacing (ε) and height (ω) of conic baffles. The biomass productivity of Spirulina increased by 39.6% under pure CO2 with APC baffles in a raceway pond.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 249, February 2018, Pages 212-218
نویسندگان
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