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PEMASANGAN INSTALASI LISTRIK, PENCAHAYAAN DAN AIR BERSIH DI PURA RIJASA DESA BAHA, MENGWI Made Rasta; I G.K. Abasana; I N. Suamir; P.W. Sunu; IW A Subagia; I K Widana
Bhakti Persada Jurnal Aplikasi IPTEKS Vol 4 No 2 (2018): November 2018
Publisher : P3M Politeknik Negeri Bali

Temple as a holy place of Hinduism in Bali inherited by the ancestors needs to be preserved. Temple as a means of worshiping God has a very broad dimension, in which there are various kinds of natural forces that can lead us to safety and happiness in this life. Temples that have old age due to the influence of time, are naturally damaged. In such conditions, the people are obliged to make improvements. The development carried out should continue to maintain its original function for its sustainability. The restoration carried out by the funding community was supported by the assistance of the Badung Regency Government and the descendants of the people and donations from donors. The main problem of the people is the limited availability of funds needed to repair the temple. Another thing that is urgently needed by the people is the availability of lighting and clean water. The purpose of this service is the availability of lighting and clean water in the temple to support temple activities. Religious ceremonies are essentially not only religious dimensions, but also social, artistic, economic, management and other dimensions. Through religious ceremonies, it can be fostered harmony between fellow human beings, families, one village with another village. Religious ceremonies also train people to be able to organize and are management exercises in regulating the course of the ceremony. Through religious ceremonies, ethics and aesthetics are also fostered. Religious ceremonies are very potential motivators to preserve or develop cultural arts, both the sacred and the profane. Even religious ceremonies are one of the attractions of tourism and can support human life. All religious cultures in the form of religious ceremonies are human endeavors to draw closer to Ida Sang Hyang Widi wasa to realize lasting peace and happiness. Balinese culture actually upholds the values of balance and harmonization, reflected in the teachings of Tri Hita Karana (three causes of welfare). If humans are able to maintain a balanced and harmonious relationship with these three aspects, welfare will be realized. Construction of temples complete with facilities and infrastructure, is expected to provide broad benefits for the community in developing tourism in Badung and Baha especially. Increasing the quality of the people, both as individual beings and as social beings. Community welfare will indirectly increase through economic performance and changes in the economic structure generated by the development of tourism.

Perbandingan konsumsi bahan bakar pada sistem injeksi dan sistem karburator I Nyoman Suparta; I Made Suarta; I Putu Gede Sopan Rahtika; Putu Wijaya Sunu
Journal of Applied Mechanical Engineering and Green Technology Vol. 2 No. 3 (2021): November 2021
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Isu dunia yang paling bayak dibicarakan adalah masalah energi dan kesehatan. Kekhawatiran terhadap pasokan energi telah memotivasi produsen otomotif mencari solusi untuk menghemat penggunaan bahan bakar. Salah satu solusi dikembangkan saat ini adalah mengganti sistim bahan bakar konvensional menjadi injeksi. Pengujian perbandingan kebutuhan bahan bakar antara sepeda motor karburator dan injeksi pada penelitian ini dilakukan menggunakan jenis motor 4 tak, kapasitas 110 cc, transmisi CVT. Pengujian dilakukan secara eksperimental. Hasil pengujian menunjukkan sistim bahan bakar injeksi lebih hemat 19,3% pada semua tingkat kecepatan.

Penggunaan refrigeran hidrokarbon MC-134 pada mesin freezer untuk pedagang es krim keliling I Dewa Made Susila; Daud Simon Anakottapary; I Wayan Adi Subagia; Putu Wijaya Sunu; I Nengah Ardita
Journal of Applied Mechanical Engineering and Green Technology Vol. 3 No. 2 (2022): July 2022
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v3i2.48-52

This study aims to determine the performance and energy consumption of the freezer machine for mobile ice cream sellers using the environmentally friendly MC134 refrigerant with a compressor capacity of 1/10 HP. This research was conducted using an experimental method. The size of the capillary tube is determined using the Cap Tube 1.0.8.0 application program. The evaporator used is a bare tube type that is wrapped around an ice cream box. The test is carried out by measuring the temperature and pressure of the refrigerant, the temperature in the ice cream box, as well as the electric current and voltage in the system. The results of the analysis of performance and energy consumption will also be compared if the system uses HFC134a refrigerant. From the test results obtained the optimum mass that is filled into the system for MC134 refrigerant is 155 grams and the optimum mass for 134a refrigerant is 202 grams. The use of MC134 refrigerant is more efficient by 23.3%. The COP for MC134 refrigerant is 3.1 while the COP for 134a refrigerant is 2.7. The energy consumption for MC134 is 67.8 kJ while for R134a is 83 kJ.

Optimasi unjuk kerja pada sistem pendinginan adsorpsi dengan siklus pemanasan-ulang kombinasi I Gusti Agung Bagus Wirajati; Putu Wijaya Sunu; Ida Ayu Gede Bintang Madrini; Ni Kadek Muliati
Jurnal Teknosains Vol 12, No 1 (2022): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.73676

The adsorption refrigeration system is a cooling system that offers several benefits, including being environmentally friendly due to the very small amount of global warming effect given, the lack of potential for ozone depletion, the low energy consumption of its operation, the low heat source used in its operation and good for reducing gas emissions on earth. This paper describes a combined reheating adsorption refrigeration system with three heat exchangers, as well as operating modes. The operation of the adsorption refrigeration system with combined reheating is schematically described with operational modes and diagrams. This adsorption cooling system is made up of three heat exchangers (H), one evaporator, and one condenser. The combination cycle is intended for heat exchanger systems that operate in a reheat cycle (H1 and H2) and a non-reheating cycle (H3). This paper also discusses system cycle time optimization. Research to get the optimum value of cycle time in this system is still rarely done and therefore optimization of cycle time is carried out on the system to get the best performance. The PSO (particle swarm optimization) program is paired with the MATLAB program to simulate the performance of the system under discussion while also enhancing its performance. The goal of this work is to use simulation to determine the optimal system performance versus the overall cycle time, which includes adsorption/desorption time, pre-cooling and pre-heating time as well as mass recovery time. Getting the best value for the entire cycle time is made possible by fusing the simulation of the system's process performance with performance optimization. As a results, the greatest increase in the optimization results' performance value occurs at a heat source temperature of 55ºC with a longer time to achieve optimal performance.

Inovasi Kincir Hidro Energi untuk Peningkatan Pariwisata Air Terjun Blemantung di Desa Pujungan Pupuan Tabanan-Bali I Dewa Gede Agus Tri Putra; Putu Wijaya Sunu; I Made Suarta; I Nyoman Gede Baliarta
Bhakti Persada Jurnal Aplikasi IPTEKS Vol. 10 No. 1 (2024): 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.v10i1.28-36

Pandemi yang telah terjadi selama ini menyebabkan penurunan ekonomi para pelaku pariwisata di Bali secara drastis. Para pemilik logistik kepariwisataan seperti bangunan hotel, villa, dan jenis fasilitas lainnya sebagai pendukung kepariwisataan mengalami kesulitan dalam biaya perawatan fasilitas yang dimiliki. Konsumsi energi yang tinggi menjadi komponen biaya yang paling tinggi dan telah menjadi permasalahan di berbagai bidang industri lainnya. Mitra kegiatan ini menargetkan pembuatan akomodasi dan kegiatan wisata (event tourism) berbasis energi dan teknologi ramah lingkungan (green technology) dengan memanfaatkan dan mendukung objek wisata air terjun blemantung. Teknologi kincir hidro energi dibuat sebagai pengembangan pariwisata di Air Terjun Blemantung Desa Pujungan Tabanan-Bali. Energi air di salah satu bagian dari air terjun blemantung akan dimanfaatkan sebagai sumber energi listrik dengan memasang sebuah kincir air sehingga energi air dapat dikonversikan menjadi energi listrik. Peralatan yang dibutuhkan dalam kegiatan ini meliputi; kincir air, generator permanent magnet, dan baterai atau aki. Selain itu, peralatan pendukung untuk instalasi kincir hidro energi ini meliputi: saluran/kanal penampung air terjun, pemipaan ke Nozzle (penstock) dan sistem instalasi kelistrikan untuk baterai dan penggunaan output energi listrik. Instalasi Kincir hidro energi ini digunakan untuk memberikan tambahan energi listrik untuk konsumsi energi bangunan dan logistik pariwisata di air terjun blemantung. Penggunaan battery pack (deep cycle) dapat memberikan kemudahan dan efisiensi dalam manajemen energi untuk tipe sumber energi air kecil. Selain itu, instalasi peralatan di lokasi wisata dapat memberikan pemandangan tambahan untuk dinikmati oleh wisatawan baik domestik maupun mancanegara. Dalam hal ini pertimbangan seni (artistik) dalam instalasi peralatan kincir hidro energi juga menjadi pertimbangan utama pelaksanaan kegiatan ini. Luaran dalam kegiatan ini adalah unit kincir hidro energi yang telah dipasang di wilayah air terjun blemantung dan pemberdayaan masyarakat dalam merawat dan penggunaan energi dalam lingkup kepariwisataan di Desa Pujungan Tabanan Bali. Dalam kegiatan ini telah dapat dihasilkan kincir air yang dapat berputar rata-rata 550 rpm dan mengahasilkan tegangan 17 volts. Pembebanan dengan lampu penerangan telah diketahui dapat diberikan sampai 25 watts.

The effect of solar tracker movement on the thermal performance of solar cooker using the Fresnel lens solar concentrator Asrori Asrori; Sugeng Hadi Susilo; Kris Witono; Putu Wijaya Sunu
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v20i2.2652

Solar energy as renewable energy has great potential to supply the world's energy needs. Solar thermal energy can be used for domestic energy purposes (cooking and water heating). The purpose of this research is to develop, design and analyze the performance of a solar cooker from the concentration of direct normal irradiance (DNI) by the Fresnel lens on the receiver/absorber as a cooking vessel. One form of improving the performance of the Fresnel solar concentrator (FSC) is the addition of an automatic solar tracker installation using hydraulic actuators. The solar tracker is varied, every 5 and 10 minutes, respectively. The solar cooker performance test was conducted outdoors at the Mechanical Engineering Department of State Polytechnic of Malang (7.9553 oS and 112.6125 oE) in April 2021. The method used actual experimental research. The measurement of solar radiation uses a solar power meter SPM-1116SD and the tracker's movement. At the same time, the temperature parameters (water temperature, receiver wall temperature, focal point temperature, ambient temperature) are measured by the temperature data logger. The concentrated solar cooker type design uses a fresnel lens with a capture area of 0.785 m2 and a focal ratio of 0.88. The main components of this solar cooker design consist of: a large fresnel lens that functions as a concentrator of sunrays, a cone-shaped cooking stove as a solar collector (receiver), and a hydraulic actuator-type solar tracker unit. Initial tests showed that the solar radiation, In = 789.00 W/m2, obtained the focal point temperature at the receiver, Tf = 930.10°C. Meanwhile, the thermal efficiency (Th) of a solar cooker with a solar tracker that moves every 10 minutes and 5 minutes is 12.7% and 33.66%, respectively. The increase in the thermal efficiency of the solar cooker is very significant, which is 2.65 times. This shows that the more accurate and continuous movement of the tracker will increase the thermal efficiency of the designed Fresnel solar cooker.

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

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.

Inovasi Kincir Hidro Energi untuk Peningkatan Pariwisata Air Terjun Blemantung di Desa Pujungan Pupuan Tabanan-Bali Putra, I Dewa Gede Agus Tri; Sunu, Putu Wijaya; Suarta, I Made; Baliarta, I Nyoman Gede
Bhakti Persada Jurnal Aplikasi IPTEKS Vol. 10 No. 1 (2024): 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.v10i1.28-36

Pandemi yang telah terjadi selama ini menyebabkan penurunan ekonomi para pelaku pariwisata di Bali secara drastis. Para pemilik logistik kepariwisataan seperti bangunan hotel, villa, dan jenis fasilitas lainnya sebagai pendukung kepariwisataan mengalami kesulitan dalam biaya perawatan fasilitas yang dimiliki. Konsumsi energi yang tinggi menjadi komponen biaya yang paling tinggi dan telah menjadi permasalahan di berbagai bidang industri lainnya. Mitra kegiatan ini menargetkan pembuatan akomodasi dan kegiatan wisata (event tourism) berbasis energi dan teknologi ramah lingkungan (green technology) dengan memanfaatkan dan mendukung objek wisata air terjun blemantung. Teknologi kincir hidro energi dibuat sebagai pengembangan pariwisata di Air Terjun Blemantung Desa Pujungan Tabanan-Bali. Energi air di salah satu bagian dari air terjun blemantung akan dimanfaatkan sebagai sumber energi listrik dengan memasang sebuah kincir air sehingga energi air dapat dikonversikan menjadi energi listrik. Peralatan yang dibutuhkan dalam kegiatan ini meliputi; kincir air, generator permanent magnet, dan baterai atau aki. Selain itu, peralatan pendukung untuk instalasi kincir hidro energi ini meliputi: saluran/kanal penampung air terjun, pemipaan ke Nozzle (penstock) dan sistem instalasi kelistrikan untuk baterai dan penggunaan output energi listrik. Instalasi Kincir hidro energi ini digunakan untuk memberikan tambahan energi listrik untuk konsumsi energi bangunan dan logistik pariwisata di air terjun blemantung. Penggunaan battery pack (deep cycle) dapat memberikan kemudahan dan efisiensi dalam manajemen energi untuk tipe sumber energi air kecil. Selain itu, instalasi peralatan di lokasi wisata dapat memberikan pemandangan tambahan untuk dinikmati oleh wisatawan baik domestik maupun mancanegara. Dalam hal ini pertimbangan seni (artistik) dalam instalasi peralatan kincir hidro energi juga menjadi pertimbangan utama pelaksanaan kegiatan ini. Luaran dalam kegiatan ini adalah unit kincir hidro energi yang telah dipasang di wilayah air terjun blemantung dan pemberdayaan masyarakat dalam merawat dan penggunaan energi dalam lingkup kepariwisataan di Desa Pujungan Tabanan Bali. Dalam kegiatan ini telah dapat dihasilkan kincir air yang dapat berputar rata-rata 550 rpm dan mengahasilkan tegangan 17 volts. Pembebanan dengan lampu penerangan telah diketahui dapat diberikan sampai 25 watts.

THE POTENTIALS OF ULTRASONIC ATOMIZER AUGMENTED THE SEA SALT PRODUCTIONS I Dewa Gede Agus Tri Putra; Putu Wijaya Sunu; Nyoman Sugiartha; I Nyoman Gede Baliarta; I Wayan Temaja
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 1 (2024): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i1.17-23

Ultrasonic atomizers can potentially augment the production of sea salt through a process known as ultrasonic nebulization. While the traditional method of sea salt production primarily relies on natural evaporation, ultrasonic atomization can accelerate the evaporation process. The process typically involves the following steps: collection of seawater, evaporation, brine crystallization and then harvesting process of the sea salt. After processing, the sea salt is typically dried and packaged for distribution and sale. In this project, influencing of ultrasonic atomizer in the process a saline water into the brine, before crystallization can be proceeded. The ultrasonic atomization process significantly increases the surface area of the seawater by converting it into fine droplets. Droplets evaporate more efficient due to large surface area of the droplets. According to testing of the research apparatus which had been conducted, an ultrasonic atomization can increase the salinity by brine evaporation or of droplet productivity of sea salt. This result had been shown that this process can be used to increasing the salinity of sea water. For further steps, this technique can potentially augment the production of sea salt.

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