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All Journal INKUIRI : Jurnal Pendidikan IPA Reswara: Jurnal Pengabdian Kepada Masyarakat Evrimata: Journal of Mechanical Engineering
Nila Alia
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Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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PENGEMBANGAN MODUL FISIKA PADA MATERI LISTRIK DINAMIS BERBASIS KETERAMPILAN PROSES SAINS (KPS) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA SMA/MA KELAS X Nila Alia; Widha Sunarno; Nonoh Siti Aminah
INKUIRI: Jurnal Pendidikan IPA Vol 6, No 1 (2017): INKUIRI: Jurnal Pendidikan IPA
Publisher : Magister Pendidikan Sains Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/inkuiri.v6i1.17274

Abstract

Tujuan penelitian: 1) mengetahui karakteristik modul pada materi listrik dinamis berbasis KPS yang mampu meningkatkan kemampuan berpikir kritis siswa SMA/MA kelas X, 2) mengetahui kelayakan modul pada materi listrik dinamis berbasis KPS dilihat dari aspek kemampuan berpikir kritis siswa SMA/MA kelas X, 3) mengetahui efektivitas modul pada materi listrik dinamis berbasis KPS dilihat dari aspek kemampuan berpikir kritis siswa SMA/MA kelas X. Metode penelitian dan pengembangan yang digunakan Research and Development (R&D). Model penelitian dan pengembangan menggunakan model penelitian 4D Thiagarajan dengan langkah pendefinisian, perancangan, pengembangan dan penyebaran. Modul fisika dikembangkan menggunakan pendekatan keterampilan proses sains dengan langkah pembelajaran mengamati, merumuskan masalah, merumuskan hipotesis, eksperimen, mengidentifikasi variabel, menganalisis data, dan menyimpulkan. Modul divalidasi untuk kelayakannya berdasarkan aspek materi, media, dan bahasa. Setelah divalidasi dan memenuhi kriteria kelayakan modul, dilakukan uji coba kelompok kecil dengan subjek 10 siswa. Setelah direvisi, dilanjutkan uji coba kelompok besar dengan subjek 35 siswa. Data yang diperoleh pada penelitian adalah data pretest-posttest hasil belajar siswa, validasi ahli, angket respon siswa. Hasil penelitian: 1) karakteristik modul berbasis keterampilan proses sains mengandung pertanyaan, materi, evaluasi dan uji kompetensi yang dilengkapi gambar dengan langkah pembelajaran yang digunakan pada modul mengacu pada pendekatan keterampilan proses sains, 2) kelayakan modul berbasis keterampilan proses sains dari hasil validasi materi, media, dan bahasa memenuhi kriteria sangat baik, 3) efektivitas modul berbasis keterampilan proses sains didapatkan nilai N-gain dari uji coba lapangan operasional sebesar 0,73 dikategorikan ˝tinggi˝ dengan signifikansi sebesar p=0,000. Berdasarkan hasil gain score menunjukkan modul fisika berbasis keterampilan proses sains dapat meningkatkan kemampuan berpikir kritis siswa.
Small PLTS Off Grid 240 WP On Residential House Rooftop Etik Puspitasari; Eko Yudiyanto; Lisa Agustriyana; Nila Alia
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.56

Abstract

Small PLTS on residential rooftops are now being widely applied. It can contribute to using alternative energy to support government programs to save electricity costs. It can also be used as backup electricity when PLN power outage. The purpose of this research is to be able to calculate the use of electric power in residential homes, design and make small PLTS off grid 240 WP from the use of electric power, calculate BEP when the payback time of the total investment in the procurement of small PLTS 240 WP with DC and AC systems. 240 WP power on the rooftop of a residential house is carried out for a load of 8 lights AC with 6 watts and one fan. This research showed that the total daily electric power usage was 0.55 kWh/day or 16.5 kWh/month. The design of 240 WP PLTS on the rooftop of a residential house according to the total household electricity needs of 550 watts/day requires core equipment such as two solar panels (120 WP), one battery (12 V 100 Ah), Inverter (12 V to 220 V) = 1000 Watt or 1 kWh as much as one piece, SCC = 20 A as much as one piece. The results of making 240 WP PLTS on the rooftop of a residential house accorded to the total electrical power needs of the household. Break Even Point on this application of 240WP solar power PLTS on residential rooftops with 1300 V power will return capital in 19.5 years. Where the total investment cost of procuring 240 WP PLTS is Rp. 5,558,000, and the cost of electricity per month from the above load is Rp. 23,850 / month or Rp. 286,200 / year.
Sustainable Power Generation through Dual-Axis Solar Tracking for Off Grid 100Wp Photovoltaic Systems Widjanarko; Alia, Nila; Fengky Adie Perdana; Pondi Udianto; Puspitasari, Etik
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 04, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i04.63

Abstract

This study investigates the development and implementation of a dual-axis solar tracking system for off-grid 100Wp photovoltaic (PV) systems to enhance energy harvesting efficiency and ensure sustainable power generation. The research addresses the limitations of fixed-tilt PV systems, which often underperform due to suboptimal solar alignment, especially in regions with dynamic weather conditions. The results demonstrated a significant increase in energy output, achieving up to 13,75% higher efficiency compared to static systems under similar operational conditions. This improvement is attributed to the system's ability to maintain optimal solar panel orientation throughout the day, facilitated by an advanced tracking algorithm and real-time sensor integration. The distinctive features of the developed system include its cost-effective design, adaptability to various geographical locations, and robust performance under fluctuating environmental conditions. The findings suggest that the dual-axis tracking system is wellsuited for deployment in remote or off-grid areas where reliable and efficient power generation is critical. Practical applications of this system are particularly relevant for rural electrification, agricultural irrigation systems, and other decentralized energy solutions in regions with abundant solar resources.
Pengoptimalan Bank Sampah di Dusun Nongkosongo Desa Wringinsongo Malang dalam Mengurangi Peningkatan Jumlah Sampah Puspitasari, Etik; Rizza, Muhammad Akhlis; Monasari, Ratna; Alia, Nila; Zainuri, Ach. Muhib
Reswara: Jurnal Pengabdian Kepada Masyarakat Vol 6, No 1 (2025)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v6i1.5011

Abstract

Dusun Nongkosongo merupakan bagian dari Desa Wringinsongo yang memiliki wilayah subur. Mayoritas pekerjaan masyarakat adalah petani dan juga peternak sapi perah. Permasalahan yang ada di Desa Wringinsongo adalah kurangnya kesadaran dan pengetahuan warga untuk memilah sampah. Sedangkan di desa tersebut sudah terdapat bank sampah, namun dari data bank sampah, hanya ada 4 kepala keluarga yang menjadi nasabah bank sampah. Metode pelatihan ini yang pertama survey lokasi, kedua koordinasi dengan Kepala Dusun Nongkosongo, ketiga pendataan informasi dan Survey ke Bank Sampah tentang jumlah nasabah sebelum dan sesudah pelatihan, keempat persiapan alat, bahan dan reward, kelima pelatihan pemilahan sampah anorganik kepada warga dan pengisian kuesioner, keenam penyerahan reward, dan ketujuh evaluasi kegiatan. Tujuan pelatihan ini yang pertama adalah meningkatkan jumlah nasabah bank sampah di Desa Wringinsongo khususnya dusun Nongkosongo. Yang kedua pemberian reward bagi warga yang telah menjadi nasabah bank sampah dengan 3 pengumpul sampah terbanyak. Hasil yang pertama adalah peningkatan nasabah bank sampah yang semula 4 KK menjadi 32 KK dari tahun 2023 sampai 2024. Yang kedua, tim PPM Polinema telah memberikan reward juara 1, 2 dan 3 kepada nasabah bank sampah yang telah mengumpulkan serta menyetorkan sampah anorganik terbanyak ke bank sampah, selain itu pemberian reward pengurus bank sampah sebanyak 3 orang sebagai dedikasinya dalam mengurus bank sampah. Langkah selanjutnya tim PPM Polinema akan mengadakan pelatihan kembali dengan tujuan memberi edukasi berkelanjutan, memantau keaktifan nasabah bank sampah sehingga nasabah bank sampah semakin bertambah
Geometry Optimization of PET Regrind Plastic Dust Separator Machine hartono, Moh.; Takwim, R.N. Akhsanu; Subagiyo, Subagiyo; Puspitasari, Etik; Alia, Nila; Nurvian Amrullah, Radhi
Evrimata: Journal of Mechanical Engineering Vol. 02 No. 01 (2025)
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.vi.76

Abstract

This study aims to analyze the effect of various operational factors on the weight of dust collected by a dust collector machine. Using a multilevel factorial design, this study evaluates the interaction between frequency (Hz), hose length (m), and tube height (m). Analysis of variance shows that all three factors have a significant effect on the dust weight response (P-Value <0.05). The regression model with an R² of 99.15% shows a very high prediction accuracy. Parameter optimization was carried out to maximize the weight of dust collected, resulting in optimal conditions at a frequency of 50 Hz, a hose length of 2 m, and a tube height of 0.3 m with a dust weight of 72.75 g.
Co-Authors Akhlis Rizza, Muhammad Eko Yudiyanto Etik Puspitasari Etik Puspitasari, Etik Fengky Adie Perdana Lisa Agustriyana Moh. Hartono Monasari, Ratna Nonoh Siti Aminah Nurvian Amrullah, Radhi Pondi Udianto R.N. Akhsanu Takwim, R.N. Akhsanu Subagiyo Subagiyo Widha Sunarno Widjanarko Zainuri, Ach. Muhib