Pengaruh Variasi Jarak Celah Ulir dan Sudut Ulir Turbin Screw pada Pembangkit Listrik Tenaga Mikrohidro (PLTMH)
Abstract
ABSTRAK
PENGARUH VARIASI JARAK CELAH ULIR DAN SUDUT ULIR TURBIN SCREW PADA PEMBANGKIT LISTRIK TENAGA
MIKRO HIDRO (PLTMH)
Energi listrik merupakan kebutuhan pokok yang sangat penting dalam kehidupan manusia. Peralatan yang digunakan dalam kehidupan sehari-hari sebagian besar bergantung pada energi listrik. Seiring dengan bertambahnya jumlah penduduk dan perkembangan pembangunan di Indonesia, maka kebutuhan energi listrik pun semakin meningkat. Apabila peningkatan ini tidak diimbangi dengan penyediaan pembangkit listrik, maka berpotensi menimbulkan krisis energi listrik. Pembangkit listrik tenaga mikrohidro dapat menjadi sarana penyediaan listrik di tempat-tempat yang belum terjangkau listrik PLN. Hasil dari alat mikrohidro dengan variasi jarak celah 1cm dan sudut sudu 30° menghasilkan daya keluaran listrik terbesar yaitu 37,74 watt. Hal ini dikarenakan pada sudut sudu 30° pancaran air yang masuk dapat mengenai bagian ulir turbin dengan sempurna dan pada jarak celah 1cm gaya dorong yang terjadi lebih besar sehingga akan menghasilkan putaran yang tinggi. Semakin tinggi rpm yang dihasilkan maka semakin tinggi pula daya yang dihasilkan generator. Pada perangkat mikrohidro menggunakan turbin ulir dengan jarak celah 1 cm dan sudut ulir 30° menghasilkan efisiensi turbin terbaik yaitu 74% dan efisiensi generator sebesar 69%, serta menghasilkan efisiensi PLTMH terbaik yaitu 51 %.
Kata kunci: Jarak Celah, Peforma Mikrohidro, Sudut Ulir, Turbin Screw
THE EFFECT OF VARIATIONS IN SCREW TURBINE THREAD DISTANCE AND THREAD ANGLE IN MICRO HYDRO POWER PLANT (PLTMH)
Electrical energy is a very important basic need in human life. Equipment used in everyday life largely depends on electrical energy. Along with the increase in population and development developments in Indonesia, the need for electrical energy is also increasing. If this increase is not balanced with the provision of electricity generation, it has the potential to cause an electrical energy crisis. Microhydro power plants can be a means of providing electricity in places where PLN electricity does not yet reach. The results of the microhydro tool with a gap distance of 1cm and a blade angle of 30° produced the largest electrical output power, namely 37.74 watts. This is because at a blade angle of 30° the incoming water jet can hit the turbine thread perfectly and at a gap distance of 1cm the thrust force that occurs is greater so it will produce high rotation. The higher the rpm produced, the higher the power produced by the generator. In micro-hydro devices using a screw turbine with a gap distance of 1 cm and a screw angle of 30° produces the best turbine efficiency, namely 74% and generator efficiency of 69%, and produces the best PLTMH efficiency, namely 51%. Keywords: Gap Distance, Microhydro Performance, Thread Angle, Screw Turbine
Downloads
Authors who publish with Elsains: Jurnal Elektro agree to the following terms:
- Authors transfer the copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.. that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
