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Influence of Forced Internal Air Circulation on Airflow Distribution and Heat Transfer in a Gas Double-dynamic Solid-state Fermentation Bioreactor
Alternative TitleAppl. Biochem. Biotechnol.
Chen, Hongzhang1; Qin, Lanzhi1,2; Li, Hongqiang1
2014-02-01
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
ISSN0273-2289
Volume172Issue:4Pages:2218-2226
AbstractInternal air circulation affects the temperature field distribution in a gas double-dynamic solid-state fermentation bioreactor (GDSFB). To enhance heat transfer through strengthening internal air circulation in a GDSFB, we put an air distribution plate (ADP) into the bioreactor and studied the effects of forced internal air circulation on airflow, heat transfer, and cellulase activity of Trichoderma viride L3. Results showed that ADP could help form a steady and uniform airflow distribution, and with gas-guide tubes, air reversal was formed inside the bioreactor, thus resulting in a smaller temperature difference between medium and air by enhancing convective heat transfer inside the bioreactor. Using an ADP of 5.35 % aperture ratio caused a 1 degrees C decrease in the average temperature difference during the solid-state fermentation process of T. viride L3. Meanwhile, the cellulase activity of T. viride L3 increased by 13.5 %. The best heat-transfer effect was attained when using an ADP of 5.35 % aperture ratio and setting the fan power to 125 V (4.81 W) in the gas double-dynamic solid-state fermentation (GDSF) process. An option of suitable aperture ratio and fan power may be conducive to ADPs' industrial amplification.; Internal air circulation affects the temperature field distribution in a gas double-dynamic solid-state fermentation bioreactor (GDSFB). To enhance heat transfer through strengthening internal air circulation in a GDSFB, we put an air distribution plate (ADP) into the bioreactor and studied the effects of forced internal air circulation on airflow, heat transfer, and cellulase activity of Trichoderma viride L3. Results showed that ADP could help form a steady and uniform airflow distribution, and with gas-guide tubes, air reversal was formed inside the bioreactor, thus resulting in a smaller temperature difference between medium and air by enhancing convective heat transfer inside the bioreactor. Using an ADP of 5.35 % aperture ratio caused a 1 degrees C decrease in the average temperature difference during the solid-state fermentation process of T. viride L3. Meanwhile, the cellulase activity of T. viride L3 increased by 13.5 %. The best heat-transfer effect was attained when using an ADP of 5.35 % aperture ratio and setting the fan power to 125 V (4.81 W) in the gas double-dynamic solid-state fermentation (GDSF) process. An option of suitable aperture ratio and fan power may be conducive to ADPs' industrial amplification.
KeywordForced Internal Air Circulation Air Distribution Plate Solid-state Fermentation Heat Transfer Cellulase
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s12010-013-0670-8
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCITRIC-ACID PRODUCTION ; CELLULASE PRODUCTION ; OPTIMIZATION ; PARAMETERS ; SYSTEM
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS IDWOS:000333248000040
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8126
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Hongzhang,Qin, Lanzhi,Li, Hongqiang. Influence of Forced Internal Air Circulation on Airflow Distribution and Heat Transfer in a Gas Double-dynamic Solid-state Fermentation Bioreactor[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2014,172(4):2218-2226.
APA Chen, Hongzhang,Qin, Lanzhi,&Li, Hongqiang.(2014).Influence of Forced Internal Air Circulation on Airflow Distribution and Heat Transfer in a Gas Double-dynamic Solid-state Fermentation Bioreactor.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,172(4),2218-2226.
MLA Chen, Hongzhang,et al."Influence of Forced Internal Air Circulation on Airflow Distribution and Heat Transfer in a Gas Double-dynamic Solid-state Fermentation Bioreactor".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 172.4(2014):2218-2226.
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