Evaluation of power consumption of paddle wheel in an open raceway pond
文献类型：期刊论文
| 作者 | Li, Yanxi1,2; Zhang, Qinghua1; Wang, Zhihui1; Wu, Xia1; Cong, Wei1 |
| 刊名 | BIOPROCESS AND BIOSYSTEMS ENGINEERING
 |
| 出版日期 | 2014-07-01 |
| 卷号 | 37期号:7页码:1325-1336 |
| 关键词 | Microalgae cultivation Open raceway pond Shaft power consumption Fluid velocity Paddle wheel efficiency |
| ISSN号 | 1615-7591 |
| 其他题名 | Bioprocess. Biosyst. Eng. |
| 中文摘要 | Open raceway ponds are widely adopted in microalgae cultivation. Paddle wheels consume the most part of power during the process of cultivation in open raceway ponds. The configuration of blades directly determines power consumption for paddle wheels. In this work, power consumption of four blades configurations was determined in a bench-scale open raceway pond of 2.2 m(2). The effect of blades configuration, the influence of filling levels from 5 to 15 cm and influence of rotational speeds from 7 to 15 r min(-1) on shaft power consumption (P (S)), fluid velocity (U (c)) and paddle wheel efficiency (eta) was investigated. Results demonstrated that flat blades were the most efficient configuration. Higher culture depth led to larger U (c), more P (s) and larger eta, especially when blades were not totally immerged in water. Under the same filling level and rotational speed, the value of P (S) decreases in the order: zigzagged, flat, forward-curved and back-curved, respectively. The zigzagged blades led to a larger U (c) at the culture depth of 5 cm, while flat and forward-curved blades drove a larger U (c) when culture depth was higher than 5 cm. The maximum value of eta was 0.50 with flat blades at 11 r min(-1) and 15 cm of culture depth. Empirical correlations of non-dimensional numbers related to operation parameters and blades geometry for four paddle wheel blades were also proposed. |
| 英文摘要 | Open raceway ponds are widely adopted in microalgae cultivation. Paddle wheels consume the most part of power during the process of cultivation in open raceway ponds. The configuration of blades directly determines power consumption for paddle wheels. In this work, power consumption of four blades configurations was determined in a bench-scale open raceway pond of 2.2 m(2). The effect of blades configuration, the influence of filling levels from 5 to 15 cm and influence of rotational speeds from 7 to 15 r min(-1) on shaft power consumption (P (S)), fluid velocity (U (c)) and paddle wheel efficiency (eta) was investigated. Results demonstrated that flat blades were the most efficient configuration. Higher culture depth led to larger U (c), more P (s) and larger eta, especially when blades were not totally immerged in water. Under the same filling level and rotational speed, the value of P (S) decreases in the order: zigzagged, flat, forward-curved and back-curved, respectively. The zigzagged blades led to a larger U (c) at the culture depth of 5 cm, while flat and forward-curved blades drove a larger U (c) when culture depth was higher than 5 cm. The maximum value of eta was 0.50 with flat blades at 11 r min(-1) and 15 cm of culture depth. Empirical correlations of non-dimensional numbers related to operation parameters and blades geometry for four paddle wheel blades were also proposed. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Biotechnology & Applied Microbiology ; Engineering, Chemical |
| 研究领域[WOS] | Biotechnology & Applied Microbiology ; Engineering |
| 关键词[WOS] | PHOTOBIOREACTOR DESIGN ; MICROALGAE ; PERFORMANCE ; AERATORS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000338237700010 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10931]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yanxi,Zhang, Qinghua,Wang, Zhihui,et al. Evaluation of power consumption of paddle wheel in an open raceway pond[J]. BIOPROCESS AND BIOSYSTEMS ENGINEERING,2014,37(7):1325-1336. |
| APA | Li, Yanxi,Zhang, Qinghua,Wang, Zhihui,Wu, Xia,&Cong, Wei.(2014).Evaluation of power consumption of paddle wheel in an open raceway pond.BIOPROCESS AND BIOSYSTEMS ENGINEERING,37(7),1325-1336. |
| MLA | Li, Yanxi,et al."Evaluation of power consumption of paddle wheel in an open raceway pond".BIOPROCESS AND BIOSYSTEMS ENGINEERING 37.7(2014):1325-1336. |
入库方式： OAI收割
来源：过程工程研究所
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