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All Journal Venus: Jurnal Publikasi Rumpun Ilmu Teknik Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Nurlia Pramita Sari
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering

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Studi Kelayakan Pembangkit Listrik Tenaga Surya Untuk Penerangan di Lokasi Ekowisata Mangrove Lembung, Desa Lembung, Kecamatan Galis, Kabupaten Pamekasan Muhammad Kharisma Ayyubi; Ach Muhib Zainuri; Fauzan Baananto; Nurlia Pramita Sari; Wirawan Wirawan
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 5 (2024): Oktober: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i5.600

Abstract

Solar Power Plant is a photovoltaic system to convert electromagnetic energy from sunlight into electrical energy. This solar power plant is one of the recommended solutions for fulfilling electricity needs in remote rural areas where the PLN electricity network does not enter and has abundant sunlight and fuel is difficult to obtain. Based on data from the Global Solar Atlas, Lembung Mangrove Ecotourism, Galis, Pamekasan Regency has a sunlight potential of 4,603 kWh/m² per day. Therefore, it is unfortunate if this potential is not optimally utilised to build an off-grid solar power plant. The purpose of the research is to assess the feasibility of installing PLTS in Lembung Mangrove Ecotourism in terms of technical, economic, and investment feasibility analysis. From the research results, to meet the electricity demand of 15,055 kWh, it needs 12 200 Wp PV modules assembled in 6 series 2 parallel, 8 12V 200Ah batteries with 4 series 2 parallel, and 1 3 kW hybrid inverter are needed. From the simulation results, the estimated energy that can be produced is 35 kWh with a performance of the system is 61.42%. In terms of investment, the initial capital required is Rp89,954,000 so that the NPV value is obtained at Rp1,725,979, PI is 1.01, and PBP is estimated to fall in year 22 month 11.
Pengaruh Variasi Temperature dan Media Pendingin Pada Single Screw Plastic Extruder Machine Terhadap Dimensi Diameter Filamen 3D Printing Dengan Material Plastik ABS Firza Nurdin Maulana; Nurlia Pramita Sari; Agus Hardjito; Subagiyo Subagiyo
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 4 (2025): Agustus : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i4.951

Abstract

3D printing technology is rapidly developing and being used in various fields. One of the main factors affecting print quality is the filament, with ABS being a popular material due to its eco-friendliness, ease of printing, and good mechanical strength. To achieve precision, the filament diameter must be consistent, around 1.75 mm or 2.85 mm according to the design nozzle diameter. The production of ABS filament uses a single screw plastic extruder machine, where the material is melted, extruded, and then cooled. Two main factors that affect the final dimensions are the extrusion temperature and the cooling medium. Improper temperature can alter the viscosity of ABS melt, affecting the extrusion rate and diameter accuracy. Meanwhile, differences in cooling media, such as blower air and water, affect material shrinkage and dimensional stability. This research aims to analyze the influence of extrusion temperature variations and cooling media on the diameter of ABS filaments. Through experiments with varying parameters, the pattern of diameter changes will be analyzed to determine the optimal conditions that minimize dimensional deviations. The research results are expected to contribute to the optimization of ABS filament extrusion parameters to support the 3D printing industry with higher quality materials.
Pengaruh Diameter Nozzle dan Temperatur Pemanasan Mesin Ekstruder Sampah Plastik Hdpe terhadap Laju Produksi dan Keseragaman Diameter Filamen Saipul Bahri; Nurlia Pramita Sari; Moh Hartono; Agus Harijono
Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 3 No. 4 (2025): Agustus : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v3i4.967

Abstract

Plastic waste, particularly High-Density Polyethylene (HDPE), poses a serious threat to the environment due to its extremely long decomposition time. One effective recycling method is the extrusion process, in which process parameters such as nozzle diameter and heating temperature significantly affect the production rate and the quality of the resulting filament. This study aims to analyze the effect of nozzle diameter and heating temperature on the production rate and diameter uniformity of recycled HDPE plastic filament. The method used is an experimental approach with a quantitative design, utilizing a single-screw type extruder machine. The tested parameter variations include two nozzle diameters (1.75 mm and 2.85 mm) and three temperature levels (200°C, 240°C, and 280°C). The results of the analysis, using factorial ANOVA and control charts, show that both parameters significantly influence production performance. The highest production rate, approximately ±1.0 kg/hour, was achieved with the 2.85 mm nozzle and 280°C temperature combination, while the combination of the 1.75 mm nozzle and 200°C temperature produced the most consistent filament diameter and the best quality, with a resulting diameter of 2.84 mm, which is very close to the target of 2.85 mm. Higher temperatures increase flow rate due to decreased viscosity, but also carry the risk of thermal degradation. This study provides practical guidelines for optimizing the HDPE recycling process through extrusion.
Co-Authors Ach Muhib Zainuri Agus Hardjito Agus Harijono Fauzan Baananto Firza Nurdin Maulana Moh Hartono Muhammad Kharisma Ayyubi Saipul Bahri Subagiyo Subagiyo Wirawan Wirawan