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All Journal Jurnal Teknosains Rekayasa Mesin Journal of Mechanical Engineering Science and Technology INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Ilmiah Telsinas Elektro, Sipil dan Teknik Informasi BHAKTI PERSADA Jurnal Aplikasi IPTEKS (Journal of Applied Sciences and Technology) Jurnal Pengabdian Masyarakat Bangsa Jurnal Inovasi Teknologi dan Edukasi Teknik Jurnal Polimesin
Negara, I Gede Artha
Bali State Polytechnic
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STUDI EKSPERIMENTAL GENERATOR ELEKTRIK BERBAHAN BAKAR BIOGAS GUNA MENDUKUNG NET ZERO EMISSION (NZE): Indonesia I Gede Artha Negara; A.A.N.B Mulawarman; I Gede Santosa; L.P. Ike Midiani
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1431

Abstract

Indonesia is a country that has large, widespread and diverse renewable energy potential that can support energy transition and achieve net zero emission (NZE) target by 2060 or sooner. This paper aimed to investigate characteristics of exhaust emissions and consumption fuel of biogas-fuelled electric generator. The biogas used comes from organic cow dung through an anaerobic fermentation process. About 40% vol. CH4 content observed in biogas. A 420 CC of single cylinder generator was used in this study. Based on the results, it can be seen that biogas exhaust CO emissions are relatively lower than gasoline. CO emissions are directly proportional to the electric load. The lowest CO2 emission was obtained at 4,7 % for biogas with 300 W electric load and 8,4 % for gasoline which is the highest emission. The concentration of hydrocarbons was observed to be 20 ppm for biogas while 64 ppm for gasoline with 300 W electric load. For the fuel consumption, biogas obtained relatively higher results than gasoline for each electric load.
Analisis Monitoring Temperatur dan Kelembaban Udara Alami Berbasis Teknologi Mikrokontroler I Gede Artha Negara
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 3 No. 1 (2023)
Publisher : Universitas Ngeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um068v3i12023p32–39

Abstract

The rapid development of technology today provides many conveniences for every human activity. One of them is the presence of microcontroller technology that can help conventional work become more modern, efficient and precise. In this case, microcontroller technology is used in the process of measuring temperature and humidity which has been integrated with sensors. Microcontroller used in this study is the Atmega328P model. DHT22 sensor is connected to a laptop and I2C LCD for monitoring. The research process was carried out in a room without a cooling system with a volume of 60m3. This study aims to investigate monitoring changes in room temperature and humidity with microcontroller technology. Based on research results, the temperature increased by 14.7 percent during the five hours of the measurement process at 07.00 – 12.00am. The increase in temperature is directly proportional to the length of time of testing. Relative humidity was observed to decrease during the research process at 13.00-18.00pm with the lowest humidity being 79.8 percent. Overall there was no significant difference during the research process. The advantages of this research are that by applying microcontroller technology it is able to convey measurement results in real-time compared to conventional methods, measurement data is stored automatically in a laptop, saving time and energy during the research process. Pesatnya perkembangan teknologi saat ini memberikan banyak kemudahan terhadap setiap kegiatan manusia. Salah satunya adalah hadirnya teknologi mikrokontroler yang dapat membantu pekerjaan konvensional menjadi lebih modern, efisien dan presisi. Dalam hal ini, teknologi mikrokontroler digunakan dalam proses pengukuran temperatur dan kelembaban udara yang telah terintegrasi dengan sensor. Mikrokontroler yang digunakan dalam penelitian ini adalah model Atmega328p. Sensor DHT22 terkoneksi dengan laptop dan LCD I2C untuk proses monitoring. Proses penelitian dilakukan di ruangan tanpa sistem pendingin dengan volume 60m3. Penelitian ini bertujuan untuk menginvestigasi monitoring perubahan temperatur dan kelembaban udara ruangan dengan teknologi mikrokontroler. Berdasarkan hasil riset, temperatur mengalami peningkatan sebesar 14.7 persen selama lima jam proses pengukuran pada jam 07.00 – 12.00am. Peningkatan temperatur berbanding lurus terhadap lama waktu pengujian. Kelembaban udara relatif teramati semakin menurun selama proses penelitian pada 13.00-18.00pm dengan kelembaban terendah adalah 79.8 persen. Secara keseluruhan tidak terdapat perbedaan signifikan selama proses penelitian. Kelebihan dari penelitian ini yaitu dengan menerapkan teknologi mikrokontroler mampu menyampaikan hasil pengukuran secara realtime dibandingkan metode konvensional, data pengukuran tersimpan otomatis dalam laptop, mengefisienkan waktu dan energi selama proses penelitian.
Energi Efisiensi Energi Motor Induksi Tiga Fasa dalam Pendistribusian Air Minum pada SPAM Petanu Made Ardikosa Satrya Wibawa; I Gede Artha Negara
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 3 No. 2 (2023)
Publisher : Universitas Ngeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um068v3i22023p74-81

Abstract

The operational fulfillment of the needs for the distribution of drinking water to PDAM Gianyar, Badung, and Denpasar City by SPAM Petanu is always balanced with costs. Distribution of water needs using pumps, the use of three-phase induction motors as pump drives without any automation controls will cause operational costs to increase, especially electricity consumption. The use of variable speed on a three-phase induction motor as a driving force for water pumps in water distribution, will further save electricity consumption. This research is expected to be a solution to find out the distribution of water, rotation with variable speed on induction motors and the power consumption used, with this solution, especially at Petanu SPAM, it can also predict between expenses and income during distribution in meeting water needs. From the results of the research and analysis of the calculations that have been carried out, it is found that the average capacity requirement for water flow required every day is between 148 l/s, the motor speed setting on the Variable Speed Drive (VSD) is set at a frequency between 40 Hz to 45 Hz so that the savings from operational costs incurred each month are between 54,541,440.- to 97,853,760.-. Pemenuhan operasional kebutuhan pendistribusian air minum kepada PDAM Gianyar, PDAM Badung, dan PDAM Kota Denpasar oleh SPAM Petanu selalu diimbangi dengan biaya. Pendistribusian kebutuhan air dengan menggunakan pompa, penggunaan motor induski tiga fasa sebagai penggerak pompa tanpa adanya kontrol otomatisasi akan menyebabkan pembengkakan biaya operasional khusunya konsumsi energi listrik. Penggunaan variabel kecepatan pada motor induksi tiga fasa sebagai penggerak pompa air dalam pendistribusian air, akan lebih menghemat konsumsi energi listrik. Sebagai solusi efisiensi maka dengan ini penulis mengajukan penelitian dengan judul “Efisiensi Energi Motor Induksi Tiga Fasa dalam Pendistribusian Air Minum pada SPAM Petanu”. Penelitian ini diharapkan menjadi solusi untuk mengetahui antara pendistribusian air, putaran dengan variabel kecepatan pada motor induksi dan konsumsi daya yang digunakan, dengan solusi ini khususnya pada SPAM Petanu juga dapat memprediksi antara pengeluaran dan pemasukan biaya selama pendistribusian dalam memenuhi kebutuhan air. Dari hasil penelitian dan analisa hitungan yang sudah dilakukan didapatkan bahwa kebutuhan kapasitas rata-rata aliran (flow) air yang dibutuhkan setiap harinya antara 148 lt/dt, pengaturan kecepatan motor pada Variable Speed Drive (VSD) diatur pada frekuensi antara 40 Hz s/d 45 Hz sehingga penghematan yang didapat dari biaya operasional yang dikeluarkan setiap bulannya sebesar antara 54.541.440, - s/d 97.853.760, -.
Instalasi Air Bersih Untuk Mendukung Wisata Edukasi Di Desa Wisata Edukasi Subak Teba Majelangu, Kesiman Kertalangu Ida Bagus Gde Widiantara; I Wayan Temaja; I Gede Artha Negara; I Nyoman Wahyu Aris Gunawan; I Putu Gede Yudi Adnyana Putra
Jurnal Pengabdian Masyarakat Bangsa Vol. 1 No. 8 (2023): Oktober
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v1i8.395

Abstract

Desa wisata edukasi Subak Teba Majelangu, Kesiman Kertalangu merupakan salah satu desa wisata yang berada di seputaran Kota Denpasar mempunyai fasilitas pembelajaran bertani bagi pengunjung desa wisata ini . Ketika para pengunjung ini, kebanyakan generasi muda, belajar bertani tentunya mereka tidak lepas dari lumpur. Lumpur ini tentunya harus dibersihkan setelah mereka belajar karena meraka akan belajar hal lain dari bertani seperti memberi makan kambing, bebek dan juga ayam. Untuk membersihkan bekas lumpur ini dibutuhkan sebuah instalasi air bersih yang memadai agar dalam proses membersihkannya dapat sempurna. Untuk hal tersebut perlu adanya sebuah instalasi air bersih memenuhi kebutuhan ini. Instalasi air bersih yang baik harus memenuhi beberapa kriteria, yaitu sumber air yang aman, sistem pengolahan air yang efektif, dan distribusi air yang memadai. Selain itu, pengelola harus memastikan bahwa air bersih yang disediakan memenuhi standar kesehatan dan kebersihan yang ditetapkan. Hal lain yang dapat diperoleh dalam penyediaan instalasi bersih ini adalah peningkatkan kualitas pengalaman pengunjung, pengetahuan baru tentang lingkungan sekitar serta meningkatkan kesehatan masyarakat. Kegiatan wisata edukasi yang nyaman akan  memperkuat keberlanjutan objek wisata edukasi serta memberikan manfaat yang signifikan bagi pengunjung dan masyarakat sekitar
PKM Revitasilasi Mesin Pendingin Chest Freezer di Banjar Jeroan Desa Patemon Singaraja I Wayan Temaja; I Gede Artha Negara; I Wayan Adi Subagia; I Dewa Gede Agus Tri Putra; Ida Bagus Widiantara
Bhakti Persada Jurnal Aplikasi IPTEKS Vol. 9 No. 2 (2023): Bhakti Persada Jurnal Aplikasi IPTEKS
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/bp.v9i2.100-107

Abstract

Desa Patemon mempunyai luas wilayah 282 Ha, terletak antara Kelurahan Seririt. Banjar Jeroan adalah salah satu banjar di Desa Patemon. Banjar ini terletak di ujung desa dan berbatasan langsung dengan desa Bengkel. Kegiatan-kegiatan yang melibatkan masyarakat Banjar Jeroan dapat mencakup: kegiatan persiapan bahan upacara, dan persiapan perlengkapan upacara. Tujuan dari kegiatan PKM ini adalah untuk meningkatkan pelaksanaan layanan upacara keagamaan dan kegiatan masyarakat di Banjar Jeroan Desa Patemon dengan memperhatikan aspek kebersihan, keselamatan, dan kesehatan. Selain itu, untuk menerapkan sarana dan prasarana yang berkaitan dengan aspek efisiensi energi dengan menerapkan konsep green technology. Metode yang diterapkan di PKM ini adalah studi observasi, pelatihan pengoperasian dan perawatan mesin pendingin serta serah terima perangkat mesin pendingin chest freezer. Hasil dari PKM ini adalah pengujian kinerja mesin chest freezer teramati temperatur kabin menurun hing-ga 12°C pada sekitar 5 menit pengujian. Temperatur teramati relatif konstan pada waktu pengujian sekitar 65 menit sampai 125 menit yaitu −20°C. Temperatur kabin terendah teramati mencapai −20°C. Hasil evaluasi kepuasan terkait pengabdian masyarakat berdasarkan pengamatan survey, 80% masyarakat memberikan persepsi sangat baik terhadap aspek ketersediaan teknologi serta fasilitas pelatihan yang diimplementasikan di kegiatan pengabdian. Secara keseluruhan, penyerahan mesin pendingin chest freez-er digunakan untuk penyimpanan olahan daging mentah yang mudah busuk sehingga olahan daging mampu bertahan dalam waktu yang lama. Kegiatan PKM ini menunjang dan meningkatkan layanan kegiatan kemasyarakatan dan upacara keagamaan di Banjar Jeroan.
Real-time thermodynamic monitoring of split inverter ACs: amicrocontroller-driven investigation of performance I Gede Artha Negara; Adi Winarta; Putu Wijaya Sunu; I Dewa Made Cipta Santosa; I Nyoman Suamir; I Gusti Agung Bagus Wirajati; I Dewa Gede Agus Tri Putra
Jurnal Polimesin Vol 22, No 2 (2024): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i2.4178

Abstract

Recent technological advancements, particularly in air conditioning cooling systems, have led to rapid developments such as inverter technology. Inverter technology provides various advantages including energy savings compared to non-inverter air conditioners. Globally, the inverter modulates the compressor to continue operation despite reaching the set temperature. This study aimed to monitor the performance of split inverter air conditioners utilizing microcontroller technology. The microcontroller model employed was the ATmega2560, capable of logging each test parameter and displaying in real-time. Additionally, the ATmega2560 integrated sensors including the DS18B20 temperature sensor and PZEM 004-T multifunction electrical sensor. Monitoring occurred over one hour of operation on a 8525 Btu/h capacity split inverter AC. Experimental monitoring results showed the lowest Tsupply at T1 compared to other temperatures, reaching 8°C. At Treturn, both T1 and T2 exhibited identical decreasing trends to 25.5°C around 3000 s. The minimum power variation occurred at P5 relative to other variations. The average power consumption of the split inverter AC was approximately 750 W. The minimum energy consumption observed was at E5 during the study, while the maximum was at E1 with peak energy consumption of 0.96 kWh. Microcontroller-based experimental monitoring can provide real-time results and shows promise for monitoring split inverter AC performance.
Mechanical Characterization of NaOH-Treated Agel Fiber-Cotton Composites Santhiarsa, IGN Nitya; Kusuma, I Gusti Bagus Wijaya; Negara, I Gede Artha
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i22023p214

Abstract

Composites comprising two or more distinct materials are fabricated to enhance the mechanical properties of the constituent materials. A common approach for generating composites is vacuum infusion. This technique enables the infusion of two materials utilizing a vacuum. In the field of composite science, textile composites have emerged as an important new development. Agel rope, derived from twisting agel fibers, exhibits inferior bending strength and elongation compared to ropes fabricated from synthetic fibers. Moreover, agel rope is susceptible to bacterial decay. This study aims to characterize the mechanical properties of textile composites comprising woven agel rope subjected to NaOH treatment. Specimens in the longitudinal (warp) shows maximal load bearing capacity, as determined by experimental results. Samples treated with 5% NaOH tolerated peak loads of 51.12 N prior to failure, with an associated deflection of 3.18%. Specimens in the transverse (weft) of the woven cotton demonstrated maximum load of 40.75 N at 0.9% deflection. The maximum stress was 25.67 MPa. Similar to agel rope, NaOH treatment removes adhering contaminants from cotton fibers, thereby enhancing their strength. However, NaOH concentrations exceeding 7.5% extract cellulose, damaging the fiber ultrastructure.
Integrated microcontroller mq sensors for monitoring biogas: Advancements in methane and hydrogen sulfide detection Negara, I Gede Artha; Anakottapary, Daud Simon; Widiantara, Ida Bagus Gde; Midiani, Luh Putu Ike; Nindhia, Tjokorda Gde Tirta; Santhiarsa, I Gusti Ngurah Nitya
Jurnal Teknosains Vol 13, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.91936

Abstract

Recent technological advances in microcontroller systems enable novel biogas monitoring capabilities. This study investigates microcontroller-based quantification of methane and hydrogen sulfide concentrations in biogas derived from anaerobic digestion. Anaerobic digesters were fed either 100% cow dung substrates or a 50:50 mixture of cow dung with municipal solid waste (MSW). Methane levels were monitored using an MQ-4 sensor, hydrogen sulfide via an MQ-136 sensor, and temperature with a K-type thermocouple, all integrated with an ATmega 2560 microcontroller system. The 100% cow dung digester produced biogas with maximum methane concentrations of 3488 ppm at 21 days, indicating improved methane production compared to the 50:50 mixture of cow dung with MSW. Hydrogen sulfide reached 195 ppm and 192 ppm for the 100% cow dung and mixed digesters. Mesophilic temperature conditions were maintained throughout the digestion process. Real-time quantification of biogas composition demonstrates the capabilities of microcontroller-based anaerobic digester monitoring to provide precise methane and hydrogen sulfide measurements.
Implementasi Infrastruktur Instalasi Air Bersih Untuk Mendukung Peningkatan Kegiatan Sosial Di Sabha Yadnya Stana Desa Petemon Singaraja Widiantara, Ida Bagus Gde; Negara, I Gede Artha; Subagia, I Wayan Adi
Jurnal Pengabdian Masyarakat Bangsa Vol. 2 No. 6 (2024): Agustus
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v2i6.1200

Abstract

Air bersih yang memadai memungkinkan masyarakat untuk lebih aktif terlibat dalam berbagai kegiatan sosial Pengabdian ini bertujuan untuk mengimplementasikan sebuah infrastruktur yang dapat mendukung peningkatan kegiatan sosial di Sabha Yadnya Stana, Banjar Jeroan, Desa Patemon, Singaraja. Bali. Pengabdian ini menggunakan metode observasi, wawancara dan studi literatur untuk mendapatkan pemahaman mengenai tantangan masyarakat dalam meningkatkan keaktifan masyarakat dalam berbagai kegiatan sosial. Berdasarkan analisis, teridentifikasi bahwa pasokan air bersih merupakan salah satu hambatan utama dalam kegiatan sosial ini. Untuk mengatasi masalah tersebut, pengabdian ini mengusulkan implementasi infrastruktur instalasi air bersih yang efektif dan efisien. Implementasi ini mencakup perencanaan, desain, dan pembangunan pasokan air bersih yang dapat memenuhi kebutuhan masyarakat secara berkelanjutan. Melalui keterlibatan aktif masyarakat dalam proses perencanaan dan implementasi, dapat tercipta kesadaran kolektif akan pentingnya air bersih terutama dalam berkegiatan sosial
Impact of Natural Polymer Proportions on the Fire-Retardant Properties of Bioplastics Santhiarsa, I Gusti Ngurah Nitya; Dwidiani, Ni Made; Tenaya, I Gusti Ngurah Putu; Negara, I Gede Artha
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i22024p434

Abstract

This research investigates the influence of varying proportions of natural polymers on the fire-retardant properties of bioplastic. Tapioca starch (Manihot esculenta) and corn starch (Zea mays) were selected as the bioplastic materials, with different weight fractions employed in the analysis. These materials, as naturally occurring polymers, are biodegradable and serve as promising components in the development of bioplastics. Fire resistance testing was conducted in accordance with ASTM D635-03, utilizing weight ratios of tapioca to corn starch at 70:30, 60:40, and 50:50. The results included photographic documentation of each specimen alongside the corresponding outcomes from the fire resistance tests. These images provide insight into the physical condition of the specimens prior to testing, emphasizing any notable morphological features that may affect their fire resistance properties. The optimal burning rate was observed in the bioplastic with a 50:50 weight fraction ratio of tapioca starch to corn starch, which exhibited a combustion rate of 8.420 mm/s. Additionally, the bioplastic with the highest weight loss rate, recorded at 0.0346 g/s, was also composed of a 50:50 weight fraction of the two starches. The observed increase was 2.36% relative to the 60:40 weight fraction and 13% relative to the 70:30 weight fraction. This increased weight loss rate can be attributed to the higher corn starch content, which is characterized by inherent flammability due to its structural composition.
Co-Authors A.A.N.B Mulawarman Adi Winarta Adie Wahyudi Oktavia Gama Bangse, Ketut Daud Simon Anakottapary Dwidiani, Ni Made Gde Widiantara, Ida Bagus I Dewa Gede Agus Tri Putra I Dewa Gede Agus Tri Putra I Dewa Made Cipta Santosa I Gede Santosa I Gusti Agung Bagus Wirajati I Gusti Bagus Wijaya Kusuma I Gusti Ngurah Nitya Santhiarsa I Gusti Ngurah Putu Tenaya I Nyoman Suamir I Nyoman Wahyu Aris Gunawan I Putu Gede Yudi Adnyana Putra I Wayan Adi Subagia I Wayan Sutama I Wayan Temaja Ida Bagus Gde Widiantara Ida Bagus Widiantara L.P. Ike Midiani Luh Putu Ike Midiani Made Ardikosa Satrya Wibawa Putra, I Dewa Gede Agus Tri Putu Wijaya Sunu Subagia, I Wayan Adi Tjokorda Gde Tirta Nindhia Widiantara, Ida Bagus Widiantara, Ida Bagus Gde Wisesa, I Dewa Putu Arjun Suhartana