The effect of nozzle-connector angle on cross-flow turbine performance

Warjito, Budiarso, Elang Pramudya Wijaya, Kevin Celine, Sanjaya Baroar Sakti Nasution

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Instead of connecting the penstock pipe to the nozzle, the connector is also designed to increase the speed of water entry. Therefore, an angle between the connector and the nozzle is needed which is called the connector angle. However, when the connector angle is too large, it can cause the direction of flow at the blade entry is changed. Therefore, this study is intended to compare the performance of the turbine with 3 variations of the connector angle which are 1000, 1050, and 1100. This study is conducted with 2 dimensional computational fluid dynamics analyses. Ansys Fluent 18.1 was used with multiphase volume of fluid (VoF) models. The results of this study reveal that the connector angle affects the performance of the cross-flow turbine. This study shows that a connector with 105° angle generates the higher efficiency compared to connector angle 100° and 110° with highest efficiency value is 83.4%. Additionally, the maximum efficiency of the all cases was obtained at a blade rotating speed of 800 rpm.

Original languageEnglish
Title of host publication5th International Tropical Renewable Energy Conference, i-TREC 2020
EditorsRidho Irwansyah, Muhammad Arif Budiyanto
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735441286
DOIs
Publication statusPublished - 23 Sep 2021
Event5th International Tropical Renewable Energy Conference, i-TREC 2020 - Depok, Indonesia
Duration: 29 Oct 202030 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2376
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Tropical Renewable Energy Conference, i-TREC 2020
Country/TerritoryIndonesia
CityDepok
Period29/10/2030/10/20

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