Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump
A multistage centrifugal pump was developed for high head and high flow rate applications. A double-suction impeller and a twin-volute were installed at the first stage followed by an impeller, diffuser and return vanes for the next four stages. An initial design feasibility study was conducted usin...
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doaj-0edc48a972494d61be26bebda44ca5242021-03-16T00:02:59ZengMDPI AGProcesses2227-97172021-03-01952652610.3390/pr9030526Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal PumpMohamed Murshid Shamsuddeen0Sang-Bum Ma1Sung Kim2Ji-Hoon Yoon3Kwang-Hee Lee4Changjun Jung5Jin-Hyuk Kim6Industrial Technology (Green Process and Energy System Engineering), Korea University of Science & Technology, Daejeon 34113, KoreaClean Energy R&D Department, Korea Institute of Industrial Technology, Cheonan-si 31056, KoreaClean Energy R&D Department, Korea Institute of Industrial Technology, Cheonan-si 31056, KoreaDongyang Chemical Pump Company, Paju 10832, KoreaGS Caltex Corporation, Seoul 06141, KoreaGS Caltex Corporation, Seoul 06141, KoreaIndustrial Technology (Green Process and Energy System Engineering), Korea University of Science & Technology, Daejeon 34113, KoreaA multistage centrifugal pump was developed for high head and high flow rate applications. A double-suction impeller and a twin-volute were installed at the first stage followed by an impeller, diffuser and return vanes for the next four stages. An initial design feasibility study was conducted using three-dimensional computational fluid dynamics tools to study the performance and the hydraulic losses associated with the design. Substantial losses in head and efficiency were observed at the interface between the first stage volute and the second stage impeller. An inducer-type guide vane (ITGV) was installed at this location to mitigate the losses by reducing the circumferential velocity of the fluid exiting the volute. The ITGV regulated the pre-swirl of the fluid entering the second stage impeller. The pump with and without ITGV is compared at the design flow rate. The pump with ITGV increased the stage head by 63.28% and stage efficiency by 47.17% at the second stage. As a result, the overall performance of the pump increased by 5.78% and 3.94% in head and efficiency, respectively, at the design point. The ITGV has a significant impact on decreasing losses at both design and off-design conditions. An in-depth flow dynamic analysis at the inducer-impeller interface is also presented.https://www.mdpi.com/2227-9717/9/3/526multistage centrifugal pumpdouble-suction impellertwin-volutecomputational fluid dynamicsinducer-type guide vane |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohamed Murshid Shamsuddeen Sang-Bum Ma Sung Kim Ji-Hoon Yoon Kwang-Hee Lee Changjun Jung Jin-Hyuk Kim |
spellingShingle |
Mohamed Murshid Shamsuddeen Sang-Bum Ma Sung Kim Ji-Hoon Yoon Kwang-Hee Lee Changjun Jung Jin-Hyuk Kim Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump Processes multistage centrifugal pump double-suction impeller twin-volute computational fluid dynamics inducer-type guide vane |
author_facet |
Mohamed Murshid Shamsuddeen Sang-Bum Ma Sung Kim Ji-Hoon Yoon Kwang-Hee Lee Changjun Jung Jin-Hyuk Kim |
author_sort |
Mohamed Murshid Shamsuddeen |
title |
Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump |
title_short |
Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump |
title_full |
Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump |
title_fullStr |
Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump |
title_full_unstemmed |
Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump |
title_sort |
effect of an inducer-type guide vane on hydraulic losses at the inter-stage flow passage of a multistage centrifugal pump |
publisher |
MDPI AG |
series |
Processes |
issn |
2227-9717 |
publishDate |
2021-03-01 |
description |
A multistage centrifugal pump was developed for high head and high flow rate applications. A double-suction impeller and a twin-volute were installed at the first stage followed by an impeller, diffuser and return vanes for the next four stages. An initial design feasibility study was conducted using three-dimensional computational fluid dynamics tools to study the performance and the hydraulic losses associated with the design. Substantial losses in head and efficiency were observed at the interface between the first stage volute and the second stage impeller. An inducer-type guide vane (ITGV) was installed at this location to mitigate the losses by reducing the circumferential velocity of the fluid exiting the volute. The ITGV regulated the pre-swirl of the fluid entering the second stage impeller. The pump with and without ITGV is compared at the design flow rate. The pump with ITGV increased the stage head by 63.28% and stage efficiency by 47.17% at the second stage. As a result, the overall performance of the pump increased by 5.78% and 3.94% in head and efficiency, respectively, at the design point. The ITGV has a significant impact on decreasing losses at both design and off-design conditions. An in-depth flow dynamic analysis at the inducer-impeller interface is also presented. |
topic |
multistage centrifugal pump double-suction impeller twin-volute computational fluid dynamics inducer-type guide vane |
url |
https://www.mdpi.com/2227-9717/9/3/526 |
work_keys_str_mv |
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