Enhancing sustainability of a mini hydro station through a self-cleaning debris diverter

Muhammad Nazry Chik, Hasril Hasini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mini hydro can be among the most sustainable energy resource, appropriate for Malaysian condition. In its actual sense, 'availability' is one of the sustainability indicators, but choked intakes have been the main common issue that keep lowering the availability figure. This works aims to improve sustainability ranking of a mini hydro station by improving its availability through an improvement in its intake cleaning procedure. It takes Sg. Renyok Mini Hydro Station, located at Jeli, Kelantan, as a case study. Here, flow and geometry of the river are simulated using CFD, in order to establish a baseline on the flow profile. Characteristics and behaviour of floating debris at this station were studied giving 28 kg per day as the total amount of floating debris accumulated. 1.64% per hour, as the clogging rate was also established. A peculiar louvered steel diverter is designed, that when installed at a pre-determined angle of 73°, a self-cleaning effect can be realized. A physical model test of this structure has also been performed with a good success in proving the concept, obtaining an efficiency of 85% on diverting the floating debris. A meticulous cost-benefit analysis was performed, giving a favourable result: 1.72 cost-benefit ratio and 2.8 years simple payback period. The results presented herein can improve the station's availability, while at the same time providing an alternative solution from the commonly available measures.

Original languageEnglish
Title of host publication3rd ISESEE 2011 - International Symposium and Exhibition in Sustainable Energy and Environment
Pages12-16
Number of pages5
DOIs
Publication statusPublished - 13 Sep 2011
Event3rd International Symposium and Exhibition in Sustainable Energy and Environment, ISESEE 2011 - Melaka, Malaysia
Duration: 01 Jun 201103 Jun 2011

Publication series

Name3rd ISESEE 2011 - International Symposium and Exhibition in Sustainable Energy and Environment

Other

Other3rd International Symposium and Exhibition in Sustainable Energy and Environment, ISESEE 2011
CountryMalaysia
CityMelaka
Period01/06/1103/06/11

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Environmental Engineering

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  • Cite this

    Chik, M. N., & Hasini, H. (2011). Enhancing sustainability of a mini hydro station through a self-cleaning debris diverter. In 3rd ISESEE 2011 - International Symposium and Exhibition in Sustainable Energy and Environment (pp. 12-16). [5977100] (3rd ISESEE 2011 - International Symposium and Exhibition in Sustainable Energy and Environment). https://doi.org/10.1109/ISESEE.2011.5977100