Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Efficiency Comparison of Hydro Turbines in a Micro Generator System from Free-flow Vortex

Version 1 : Received: 12 October 2021 / Approved: 14 October 2021 / Online: 14 October 2021 (13:00:14 CEST)

How to cite: Sritram, P.; Suntivarakorn, R. Efficiency Comparison of Hydro Turbines in a Micro Generator System from Free-flow Vortex. Preprints 2021, 2021100217 (doi: 10.20944/preprints202110.0217.v1). Sritram, P.; Suntivarakorn, R. Efficiency Comparison of Hydro Turbines in a Micro Generator System from Free-flow Vortex. Preprints 2021, 2021100217 (doi: 10.20944/preprints202110.0217.v1).

Abstract

This study aimed to enhance a micro hydroelectric generator system driven by free-flow vortex and to compare efficiency of Propeller and Crossflow turbines. Series of turbines in each type were designed and tested at water-flowrate of 0.02 m3/s. The turbine housing has 1 meter in diameter and 0.5-meter height with 2 meters outlet drain at the bottom. The best efficiency extracted from Crossflow turbines with the same height (0.3 meter) but different in diameter (0.4, 0.5, 0.6, and 0.7 meter) and numbers of blade (12, 18, 24, 30, and 23) was from an 18 blades turbine at 23.01% of efficiency. The best efficiency extracted from Propeller turbines with 5 blades was from a 0.4-meter-high turbine with a diameter of 0.7 meter at 13.92% of efficiency. There were 12 Propeller turbines designed in this study. They were different in height (0.2, 0.3, and 0.4 meter) and, in each height, 0.4, 0.5, 0.6, and 0.7 of diameter was applied. The result revealed that Cross Flow turbine had more efficiency to the system than Propeller turbine (9.09%) at the water-flowrate of 0.02 m3/s

Keywords

Gravitational vortex; Free-flow vortex; Cross flow turbine; Propeller turbine.

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.