Effect of Throat Length on Steam Ejector Critical Back Pressure

Steam ejector is widely applied in chemical industry and many papers have published to investigate the structure configuration effects on the performance. Previous studies showed that the throat length of steam ejector has little influence on its performance. In this study, Computational Fluid Dynam...

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Main Authors: R. Bi, M. Hu, S. Wang, X. Tan, S. Zheng
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2017-10-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/375
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author R. Bi
M. Hu
S. Wang
X. Tan
S. Zheng
author_facet R. Bi
M. Hu
S. Wang
X. Tan
S. Zheng
author_sort R. Bi
collection DOAJ
description Steam ejector is widely applied in chemical industry and many papers have published to investigate the structure configuration effects on the performance. Previous studies showed that the throat length of steam ejector has little influence on its performance. In this study, Computational Fluid Dynamics model of steam ejector is established to investigate the effects of ejector’s throat on its performance. The result shows that ejector’s length has little influence on its entrainment ratio. But, there is optimum throat length corresponding to biggest critical back pressure and which is corresponding with the biggest operating flexibility of steam ejectors. So, ejector’s throat length has an important effect on its operating flexibility and cannot be over- looked during the design process of steam ejectors.
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spelling doaj.art-463cd4ce8e8d41de8c88bc412195cffc2022-12-21T20:44:05ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162017-10-016110.3303/CET1761322Effect of Throat Length on Steam Ejector Critical Back PressureR. BiM. HuS. WangX. TanS. ZhengSteam ejector is widely applied in chemical industry and many papers have published to investigate the structure configuration effects on the performance. Previous studies showed that the throat length of steam ejector has little influence on its performance. In this study, Computational Fluid Dynamics model of steam ejector is established to investigate the effects of ejector’s throat on its performance. The result shows that ejector’s length has little influence on its entrainment ratio. But, there is optimum throat length corresponding to biggest critical back pressure and which is corresponding with the biggest operating flexibility of steam ejectors. So, ejector’s throat length has an important effect on its operating flexibility and cannot be over- looked during the design process of steam ejectors.https://www.cetjournal.it/index.php/cet/article/view/375
spellingShingle R. Bi
M. Hu
S. Wang
X. Tan
S. Zheng
Effect of Throat Length on Steam Ejector Critical Back Pressure
Chemical Engineering Transactions
title Effect of Throat Length on Steam Ejector Critical Back Pressure
title_full Effect of Throat Length on Steam Ejector Critical Back Pressure
title_fullStr Effect of Throat Length on Steam Ejector Critical Back Pressure
title_full_unstemmed Effect of Throat Length on Steam Ejector Critical Back Pressure
title_short Effect of Throat Length on Steam Ejector Critical Back Pressure
title_sort effect of throat length on steam ejector critical back pressure
url https://www.cetjournal.it/index.php/cet/article/view/375
work_keys_str_mv AT rbi effectofthroatlengthonsteamejectorcriticalbackpressure
AT mhu effectofthroatlengthonsteamejectorcriticalbackpressure
AT swang effectofthroatlengthonsteamejectorcriticalbackpressure
AT xtan effectofthroatlengthonsteamejectorcriticalbackpressure
AT szheng effectofthroatlengthonsteamejectorcriticalbackpressure