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All Journal JISTECH: Journal of Information Science and Technology Jurnal Penelitian Hasil Hutan Jurnal Penelitian Hasil Hutan Jurnal Natural Panrita Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Hasil Hutan
Darma Santi
Jurusan Kimia, Fakultas`Matematika Dan Ilmu Pengetahuan Alam, Universitas Negeri Papua, Jl. Gunung Salju Amban Manokwari
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Journal : Jurnal Natural

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Perancangan Sistem Monitoring Parameter Kualitas Udara (Suhu, CO, LPG dan Debu) berbasis IOT Darma Santi; Jacson Victor Morin
Jurnal Natural Vol. 17 No. 2 (2021): JURNAL NATURAL
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v17i2.156

Abstract

Telah dilakukan penelitian terhadap rancang bangun sistem monitoring parameter kualitas udara (suhu, CO, LPG dan debu) yang datanya terintegrasi secara real time. Alat ukur menggunakan basis mikrokontroler Arduino Uno R3. Sensor gas MQ-9 dan MQ-5 digunakan untuk mengukur polusi udara, sedangkan sensor LM35 dan DSM 501A digunakan untuk suhu dan debu. Sistem ini juga terhubung dengan Xbee S2 sebagai pengirim dan penerima data berbasis WIFI. Sumber tegangan dihubungkan ke panel surya 10 W yang diatur oleh charger controller sehingga ketika baterai penuh, koneksi pengisian baterai akan terputus. Perangkat lunak yang digunakan adalah Arduino IDE 1.8.1 dan X-CTU. Data yang dapat diukur dengan alat ini adalah tingkat pencemaran udara gas CO dan LPG, suhu udara dan partikulat PM 2.5 di udara. Tahap pengukuran diuji dengan sampel gas (CO dan LPG) serta sumber panas dan sumber dingin untuk suhu. Data pengujian menunjukkan bahwa semua sensor mampu mendeteksi keberadaan gas CO dan LPG, perbedaan suhu dan kadar debu di udara kemudian menampilkan data tersebut secara real time.
TRANSESTERIFIKASI MINYAK GORENG BEKAS MENGGUNAKAN KATALIS DARI LIMBAH GERGAJIAN KAYU MATOA (Pometia pinnata): VARIASI RASIO MOL METANOL TERHADAP MINYAK Aronggear, Pitornela Ribka; Santi, Darma; Langsa, Markus Heryanto; Lisna Efiyanti, Lisna Efiyanti
Jurnal Natural Vol. 20 No. 1 (2024): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v20i1.247

Abstract

Utilization of the sawn waste of matoa (Pometia pinnata) wood from Manokwari is carried out to provide an alternative choice of transesterification reaction catalyst sources that utilize wood processing waste materials. This study aimed to determine the character of the synthetic ash material by calcination method at 500 °C. In addition to testing the catalytic activity of synthetic wood ash in the transesterification reaction of used cooking oil, the mole ratio of methanol to used cooking oil was 3:1 and 9:1. The characterization results indicated the alkali metal components, in the form of Na and K, were respectively 20.7750 and 4.8625 mg/L. The content of alkaline earth metals in the form of Ca is 27.3125 mg/L. The percentage yield of transesterification or total methyl ester conversion at a ratio of 3:1 was 47.24%. Product distribution at a ratio of 3:1, namely methyl palmitate (26.34%) and methyl oleate (20.90%). The yield percentage of transesterification or total methyl ester conversion at a ratio of 9:1 was 64.74%. Product distribution at a ratio of 9:1, namely methyl palmitate (31.70%) and methyl oleate (33.04%).
Co-Authors Aronggear, Pitornela Ribka Bertha Mangallo Islam, Muhammad Fajar Jacson Victor Morin Lisna Efiyanti Lisna Efiyanti Lisna Efiyanti Lisna Efiyanti Lisna Efiyanti, Lisna Efiyanti Markus Heryanto Langsa Morin, Jacson Viktor Novitasari, Agnes Dyah Santoso, Bimo Budi Sirampun, Alfhons Daniel Somar, Evelina Sumarna, Sabir Susilowati Susilowati Taher, Achmad