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RANCANG BANGUN PEMBANGKIT LISTRIK TENAGA AIR GAMBUT MENGGUNAKAN LOGAM BEKAS SEBAGAI ELEKTRODA Nuriskasari, Isnanda; Handaya, Devi; Ramadhan, Mochammad Tendi Noer; Alghifary, Herninda Zahrani; Nuraisah, Putri
AUSTENIT Vol. 13 No. 1 (2021): AUSTENIT: April 2021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Penelitian ini bertujuan untuk memanfaatkan air gambut sebagai sumber energi alternatif untuk menghasilkan energi listrik. Pada penelitian ini, air gambut akan diproses sebagai larutan elektrolit dalam prototipe pembangkit listrik tenaga air gambut dengan menerapkan prinsip sel volta. Elektroda yang digunakan dalam penelitian ini merupakan logam bekas, yaitu logam Cu (Tembaga), Zn (Seng), dan Al (Alumunium). Penelitian ini menguji beberapa variabel, yaitu pengaruh luas penampang elektroda, pengaruh volume air gambut, dan pengaruh perbedaan elektroda (Cu-Zn dibandingkan dengan Cu-Al). Hasil penelitian menunjukkan bahwa air gambut kondisi menggenang (pH 4,1)  memiliki tingkat keasaman lebih tinggi daripada air gambut kondisi mengalir pelan, (pH 4,4), sehingga dalam penelitian digunakan air gambut kondisi menggenang sebagai larutan elektrolit dalam prototipe. Peningkatan luas penampang elektroda akan meningkatkan tegangan listrik yang dihasilkan. Hasil optimum luas penampang elektroda pada penelitian ini sebesar 9 x 11 cm2, volume air gambut juga memiliki pengaruh terhadap nilai tegangan listrik yang dihasilkan. Prototipe pembangkit listrik tenaga air gambut dirancang dengan menggunakan 15 sel elektroda yang dirancang secara seri dengan luas penampang untuk setiap elektrodanya adalah 9 x 11 cm2 dan volume air gambut menggenang yang digunakan sebesar 2500 mL. Prototipe pembangkit listrik tenaga air gambut menggunakan elektroda logam bekas Cu-Zn memiliki kinerja lebih baik dibandingkan dengan menggunakan elektroda Cu-Al dalam menghasilkan energi listrik, yaitu tegangan yang dihasilkan sebesar 13,4 Volt dan kuat arus listrik sebesar 1,313 mA pada waktu pengamatan 1 menit, sedangkan pada waktu pengamatan 90 menit menghasilkan tegangan listrik sebesar 10,03 Volt dan kuat arus listrik sebesar 0,876 mA.
PENGARUH PERBEDAAN JENIS ELEKTROLIT DAN KONSENTRASI TERHADAP SINTESIS GRAPHENE SECARA ELEKTROKIMIA MENGGUNAKAN REAKTOR SOLENOIDA Nuriskasari, Isnanda; Handaya, Devi; Prayogi, Adila Syifa; Mustopa, In In; Sihombing, Tania Sonya; Ramadhan, Mochammad Tendi Noer
AUSTENIT Vol. 15 No. 1 (2023): AUSTENIT: April 2023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v15i1.6270

Abstract

Electrochemical synthesis of graphene is a way to obtain graphene. Graphene as a material that has thermal, magnetic, mechanical, chemical properties, especially in special electrical properties. The development of graphene lies in the method used, one of which is the electrochemical method, where this method has the advantages of being fast, environmentally friendly, and low cost in the production process. In the process, this method requires several main components, namely electrolytes, electrodes, and an electrical supply. The electrolytes used are still very diverse and the search for the right electrolyte continues to increase the production of graphene synthesis. This study focuses on knowing the effect of the Sulfuric Acid (H2SO4), Hydrochloric Acid (HCl), and Vinegar Acid (CH3COOH) as electrolytes in electrochemically obtaining graphene and the effect of electrolyte concentration (0.5M; 1M; and 1.5M). The fixed variable used is commercial graphite with the reactor used is a solenoid modified reactor with a reaction time of 1 hour. The result is that the electrolyte H2SO4 is a very good type of electrolyte in the graphene synthesis process compared to HCl and CH3COOH, it can be seen from a graph containing data in the form of graphite weight after the electrochemical graphene synthesis process, and the greater the concentration, the stronger the electrolyte in the graphene synthesis process, so that more graphite will be eroded and more graphene will be obtained.
Instalasi dan Pemanfaatan Pompa Hidram untuk Kebutuhan Air Bersih Warga Rumpin Kabupaten Bogor Candra Damis Widiawaty; Isnanda Nuriskasari; Yuli Mafendro Dedet Eka Saputra; Tatun Hayatun Nufus
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol 9 No 1 (2026): Mitra Akademia: Jurnal Pengabdian Masyarakat
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Jakarta

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Abstract

 Residents of Kampung Candi, Rumpin District, Bogor Regency faced difficulties in obtaining clean water due to the location of the natural water source, which is situated in a lowland area and difficult to access. This Community Service Program was carried out by the lecturers and students of the Energy Conversion Engineering Technology Study Program, Politeknik Negeri Jakarta (PNJ), to provide an appropriate technological solution through the installation of an energy-efficient and environmentally friendly hydraulic ram pump. The activities began with a site survey and elevation measurement of the water source, followed by the design and laboratory testing of the pump, and the installation of the hydraulic ram system in the field. Assistance and training were provided to the community to ensure that residents could operate and maintain the system independently. Survey results showed that more than 90% of residents understood the working principles and benefits of the hydraulic ram pump, while 95% had acquired basic skills in system maintenance. This program successfully improved sustainable access to clean water, strengthened community self-reliance, and supported the implementation of environmentally friendly technology in rural areas.
Co-Authors Abadi, Cecep Slamet Abdul Azis Abdillah Adhi, Pribadi Mumpuni Agus Sukandi Alghifary, Herninda Zahrani Andi Ulfiana Belyamin Belyamin Candra Damis Widiawaty, Candra Damis Devi Handaya Ekayuliana, Arifia Fuad Zainuri Handaya, Devi Iwan Susanto Mafendro Dedet Eka Saputra, Yuli Muhammad Hidayat Tullah Mustopa, In In Nainggolan, Benhur Noor Hidayati Nuraisah, Putri Pramono, Agus Edy Prayogi, Adila Syifa Rahman, Haolia Rahmat Subarkah Rahmat Subarkah Ramadhan, Mochammad Tendi Noer Ridwan , Emir Sihombing, Tania Sonya Sonki Prasetya Sonki Prasetya Sri Lestari Tatun H Nufus Tatun Hayatun Nufus Widiyatmoko, Widiyatmoko Yuli Mafendro Dedet Eka Saputra