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<![CDATA[RANCANG BANGUN SISTEM PEMANEN ENERGI ANGIN EXHAUST FAN TURBIN ANGIN SUMBU HORIZONTAL DENGAN PENGARAH ANGIN (WIND TUNNEL) ]]>
<![CDATA[Reki Aji Saputra]]>;
<![CDATA[Cokorde Gede Indra Partha]]>;
<![CDATA[I Wayan Sukerayasa]]>
<![CDATA[ Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2021.v08.i02.p26
<![CDATA[Energy consumption in the current era is increasing and only focuses on the use of nonrenewableenergy in this case fossil energy, namely fuel oil which is limited in number and theprice is increasing. One solution is to use alternative energy that can be renewed or renewable,including water energy, solar energy, biomass energy, wind energy and others. Renewableenergy which has been widely used as electrical energy by developed countries is wind energy,in addition to the use of natural wind energy as alternative energy, there is also artificial wind,namely the waste energy from the exhaust fan can be used as a source of energy. analternative energy source option for Wind Power Plant (WPP). The characteristics of the windoutput from the exhaust fan itself spread the wind direction so that the wind energy that can becaptured by the wind turbine is less than optimal, so it is necessary to install a wind tunnel thatis useful for directing or focusing the wind distribution In this study, a wind tunnel has beendesigned which is placed in the direction of the exhaust wind output of the horizontal axis windturbine exhaust fan. With the addition of a wind tunnel, it can increase the wind speed from 3.3m/s to 5.8 m/s or an increase of 76% and power harvesters increase from 0.38 Watt to 0.96Watt or an increase of 153%.]]>
<![CDATA[PERANCANGAN SISTEM POMPA AIR DENGAN MEMANFAATKAN PLTS 20 KWP DESA TIANYAR TENGAH ]]>
<![CDATA[Bima Aditya Putra]]>;
<![CDATA[I Wayan Sukerayasa]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2020.v07.i01.p8
<![CDATA[Implementation of solar power plants in Bali, located in Karangasem Regency, Bali Province. In 2013, the Ministry of Energy and Mineral Resources built a 15 kWp and 20 kWp off grid small scale solar power plants pilot project in Tianyar Village, Kubu District, Karangasem Regency. 20 kWp Central Tianyar solar power plants and 15 kWp West Tianyar currently abandoned unused, Therefore in this study it will be discussed more deeply about 20 kWp solar power plants in Tianyar Village to optimize the use of solar power plants in tianyar village as a source of water pump drive. Designing a Water Pump System Using the 20 kWp solar power plants of Central Tianyar Village has a total Head Losses of 109,519 m, the pump used is 1 LEO 4XRm6 / 20-2.2 water pump with an average head of 110 m. The pipe used is a PVC pipe along the 1640 m with a diameter of 2 Inch. This design also uses 6 Elbow fittings, 90 ° Threaded Regular. The need for drinking and cooking water that is needed by residents of Tianyar Tengah Village Banjar Bukit Lambuh is 38,880 liters / day. This design can lift water needs of 38,400 liters / day or as much as 98.76% or as many as 1279 out of 1296 people who are met the need for clean water for drinking and cooking.]]>
<![CDATA[Auto Tuning PID Controller Untuk Mengendalikan Kecepatan DC Servomotor Robot Gripper 5 Jari ]]>
<![CDATA[I Wayan Widhiada]]>;
<![CDATA[Wayan Reza Yuda Ade Putra]]>;
<![CDATA[Cok. G Indra Partha]]>
<![CDATA[ Jurnal Energi Dan Manufaktur Vol 7 No 2 (2014): Oktober 2014 ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, University of Udayana ]]>
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<![CDATA[Peneliti membahas pemodelan kecepatan DC servomotor pada gripper lima jari yangdikontrol dengan auto tuning PID controller. Methode auto turning digunakan untukmendapatkan nilai response control yang optimal. Pemodelan DC servomotor dilakukandengan menggunakan metode Fungsi Alih dimana fungsi ini merupakan perbandingantransformasi output laplace dengan input aplace dari system motor DC. Pemodelan inidisimulasikan dengan menggunakan blok diagram dalam Simulink/MATLAB dan juga dapatmenggunakan toolbox simelectronics/Simulink. Dari hasil simulasi didapat bahwa DCservomotor telah mencapai kecepatan yang stabil pada waktu yang relative singkat dengansinyal kesalahan penggerak yang sangat kecil pula.Kata kunci: DC servomotor, PID controller, auto tuningThe authors present the modeling of DC servomotor speed into five fingers gripper whichcontrolled by auto tuning of PID controller. Auto tuning method is used to obtained theoptimum of response value control. The modeling of DC servomotor is obtained to use thetransfer function method which this function is a comparison between output Laplacetransform and input Laplace transform from DC servomotor system. This model can besimulated to use the diagram block in Simulink/MATLAB and also can be used thesimelectronics/simulink toolbox. From simulation result, it is obtained that DC servomotorhas achieved the steady speed response at short time with the smallest error signal too..Keywords: DC servomotor, PID controller, auto tuning]]>
<![CDATA[PEMANFAATAN ENERGI ANGIN SEBAGAI ENERGI ALTERNATIF PEMBANGKIT LISTRIK DI NUSA PENIDA DAN DAMPAKNYA TERHADAP LINGKUNGAN ]]>
<![CDATA[I N. Budiastra]]>;
<![CDATA[I.A. Dwi Giriantari]]>;
<![CDATA[Wayan Artawijaya]]>;
<![CDATA[Cok. Indra Partha]]>
<![CDATA[ Bumi Lestari Journal of Environment Vol 9 No 2 (2009) ]]>
Publisher : <![CDATA[Environmental Research Center (PPLH) of Udayana University ]]>
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<![CDATA[The environmental impacts due to technology applications have been an interesting issue for researchers and engineers worldwide. Innovations in development of environmentally friendly technology have been implemented to minimise severe consequences of the impacts, including in electricity generation technology. It has been known that the use of fossil fuel will increase the emission of greenhouse gasses, such as SO2, NO and CO2. A strong regulation for emission of greenhouse gasses has imposed a great extent of efforts in reducing the emitted gases. At present, the electricity need for Penida island is mainly generated using diesel generating system. The use of large amount of diesel oil for electricity generation certainly increases the emitted greenhouse gasses. This paper discusses an alternative technology in wind energy utilisation for electricity generation at Penida Island. The position of Penida island, which is in the ocean front region, yields a high potential use of wind energy for electricity generation. The analysis results show that at the Penida Island, the electricity may be produced with a maximum power of 50kW from a single wind turbine. In order to fulfil the total electrical energy need for the island, it is required to develop hundreds of turbines. Development of this amount of wind turbines certainly produces other related environmental impacts, such as ecological impacts, visual aesthetics and generated noises.]]>
<![CDATA[Perbandingan Penggunaan Motor DC Dengan AC Sebagai Penggerak Pompa Air Yang Disuplai Oleh Sistem Pembangkit Listrik Tenaga Surya (PLTS) ]]>
<![CDATA[Agus Teja Ariawan]]>;
<![CDATA[Tjok Indra Partha]]>;
<![CDATA[I Wayan Arta Wijaya]]>
<![CDATA[ PROSIDING CSGTEIS 2013 CSGTEIS 2013 ]]>
Publisher : <![CDATA[PROSIDING CSGTEIS 2013 ]]>
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<![CDATA[Indonesia merupakan negara beriklim tropis yang memiliki sumber energi surya rata-rata 4.8 kWh/m2/hari. Bali memiliki kapasitas energi surya di atas rata-rata. Terdapat beberapa pemukiman di Pulau Bali yang sulit dijangkau untuk pemasangan listrik sehingga mempengaruhi sistem pengangkatan air bagi pemukiman dengan sumber mata air berada lebih rendah dari tanah pemukiman. Terdapat 2 sistem pengangkatan yaitu pengangkatan air menggunakan penggerak pompa DC dan penggerak pompa AC.Penelitian ini bertujuan memperoleh perbandingan kinerja sistem pengangkatan air yang digerakkan oleh pompa DC dan AC dengan sumber daya pembangkit listrik tenaga surya. Rancang bangun pompa DC menggunakan empat buah panel surya sebagai sumber energi listrik dan sebuah penstabil tegangan/regulator 12 volt/20 ampere, dan sebuah pompa DC berkapasitas daya 60 watt 5.4 ampere. Rancang bangun pompa AC mengggunakan 4 buah panel surya sebagai sumber energi listrik dan sebuah penstabil tegangan/regulator 12 volt/20 ampere, sebuah inverter 12 volt DC menjadi 220 volt AC untuk mengubah arus DC menjadi arus AC, dan sebuah pompa AC berkapasitas 220 volt ; 60 watt untuk menaikkan air.Hasil dari perbandingan sistem pengangkatan air menggunakan pompa DC dan AC dengan sumber energi listrik tenaga surya pada kondisi cuaca cerah untuk pompa DC menaikkan air selama enam jam/hari, yaitu dari pukul 10.00-15.00 dan menghasilkan debit air 6840 liter/hari (19 liter/menit) dengan total head 3,2 meter, untuk pompa AC menaikkan air selama enam jam/hari, yaitu dari pukul 10.00-15.00 dan menghasilkan debit air 2160 liter/hari (6,0 liter/menit) dengan total head 2,3 meter.Kata Kunci : Solar cell, Regulator, Inverter, Pompa.]]>
<![CDATA[Design and Balancing Load Current in 3-Phase System Using Microcontroller ATMEGA 2560 ]]>
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ International Journal of Engineering and Emerging Technology Vol 2 No 1 (2017): January - June ]]>
Publisher : <![CDATA[Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University ]]>
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<![CDATA[The design of balancing the load current on three-phase systems using a microcontroller ATMega 2560 is a tool that serves to reduce the power loss. Power loss due to the load current unbalance the current flows in the neutral phase on three-phase systems. Current flows in the neutral phase distribution transformer into a detriment to PT. PLN (Persero) for the power lost to the earth and can not be used by consumers. So that it will balanced the load current to reduce the value of neutral current. The tool is also equipped with a monitoring system that displays current magnitude of each phase including the neutral phase.The methods in making this tool is divided into two parts: first, the design of hardware consist of designing electronic components which are used by the current sensor circuits, relay, LCD (Liquid Crystal Display) etc. Second, the design of software is a tool listing program procedure including the monitoring program displays the current of each phase on LCD using the Arduino IDE. SCT013-030 current sensor used, the output of the current sensor is connected to the pin ADC (Analog to Digital Converter) microcontroller ATMega 2560. Then microcontroller process the data and generate a current value displayed on the LCD. The other result of processing current value is a command to enable or disable the relay that connects three-phase resource with single-phase loads.The result of the test design of balancing load current on three-phase system using a microcontroller ATMega 2560 succeed balancing the load current by moving the channel load of sequence number load the smallest connected to the phase with the current biggest load toward a phase that has a load current smallest when neutral current exceeds the limit is permitted. In this situation, the neutral current will not be possible be zero. In fact, the maximum current value for the neutral phase for PT. PLN (Persero) 50 amperes calibrated to 1 ampere and is used as a limit on this prototype. If the neutral current on LCD monitor exceeds 1 ampere, then there will be balancing of the load current. The current sensor measurement results are displayed on a monitoring approach measurement result using pliers ampere.]]>
<![CDATA[IT Security Audit Based on CISSP PMBOK Framework ]]>
<![CDATA[Kheri Arionadi]]>;
<![CDATA[Suta Adya Dharma]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ International Journal of Engineering and Emerging Technology Vol 1 No 1 (2016): July - December ]]>
Publisher : <![CDATA[Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University ]]>
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<![CDATA[XYZ International School redesign their IT System and Infrastructure to meet their target in implementing ICT based learning process. The implementation of new system and infrastructure have good impact in speed and accuracy of learning process but not yet evaluate in term of security matters. IT security audit perform to fulfill the evaluation need for security implemented in XYZ International School. Audit perform based on CISSP common body of knowledge from (ISC)2 and concentrate in Access Control area. Result show that security concern already implemented and have a good standard in certain area like identification, authentication, authorization and implementation, but still need improvement in accountability and monitoring area]]>
<![CDATA[Analysis and Design of Data Warehouse on Academic STMIK STIKOM Bali ]]>
<![CDATA[Komang Budiarta]]>;
<![CDATA[Putu Agung Ananta Wijaya]]>;
<![CDATA[Cokorde Gede Indra Partha]]>
<![CDATA[ International Journal of Engineering and Emerging Technology Vol 2 No 1 (2017): January - June ]]>
Publisher : <![CDATA[Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University ]]>
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<![CDATA[College accreditation by BAN-PT is one of the parameters in determining the quality of universities in Indonesia. As consideration to achieve the standard from BAN-PT, so they have an evaluation process itself in study program or college to be meet the standard universities when set by the BAN-PT. In carrying out the process of self evaluation, required data source that is used as the basis in assessing on a criteria. In most of the study program, all data spread on the system information and physical document that different, that is require more time and effort to integrate up to interpret. Data warehouse fight important in collecting data that spread and become an information. The process data warehouse with ETL used to integrate, extract, clean, transforming and reload into the data warehouse. With the existence of the data warehouse on Academic STIMIK STIKOM Bali can make it easier for executives to get the information to support the standard accreditation standart three and can be used as a reference in decision making.]]>
<![CDATA[STUDI ANALISA PENGHEMATAN ENERGI DI GEDUNG DEWAN PERWAKILAN RAKYAT DAERAH KABUPATEN BADUNG ]]>
<![CDATA[I Wayan Sastrawan]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i02.p7
<![CDATA[Today, excessive use of electrical energy will certainly cause energy wastage, given the energy crisis that has hit all countries, the government must have made efforts to save energy use. In 2019, the energy consumption of the Badung Regency DPRD Building was 41.8 kWh/m2 month, when compared to the Minister of Energy and Mineral Resources Regulation No. 13 on an Air-conditioned Building, which was 14 kWh/m2 month, the DPRD Building was included in the wasteful category. Based on these problems, efforts are needed to evaluate the use of electrical energy in the DPRD Building by means of energy conservation. The purpose of the study was to identify the potential for saving electrical energy that can be applied to the Badung Regency DPRD Building. The research method uses a descriptive quantitative approach where the results of calculations and measurements are then described and compared with Indonesian national standards on energy conservation. The results of the research show that the potential for saving electrical energy can be done by replacing the standard Split AC into a low watt AC where the electrical energy savings are obtained by 11.62% or a budget savings of Rp. 21,068,468.-]]>
<![CDATA[ANALISIS MANAJEMEN ENERGI AKIBAT ALIH FUNGSI RUANGAN PADA MASA PANDEMI DI RSD MANGUSADA BADUNG ]]>
<![CDATA[I Made Deny Setiawan]]>;
<![CDATA[I Gede Dyana Arjana]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ Jurnal SPEKTRUM Vol 9 No 2 (2022): Jurnal SPEKTRUM ]]>
Publisher : <![CDATA[Program Studi Teknik Elektro UNUD ]]>
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DOI: 10.24843/SPEKTRUM.2022.v09.i02.p6
<![CDATA[In 2020 as a result of the Covid-19 pandemic, the number of patients at the Mangusada Hospital continued to increase. The increasing number of patients has led to a change in the function of the room in handling special patients with Covid-19. The change in the function of the room will certainly have an impact on changes in electrical energy consumption. The results showed that the measurement of light intensity and room temperature in Building C of RSD Mangusada did not meet the standards of the Minister of Health Regulation No. 7 of 2019. The factor causing the non-fulfillment of light intensity was because many lights had dimmed and died and in the air system the standards were not met due to performance. AC that is not optimal in cooling the room but is still used if this continues will be a waste of energy. Energy saving efforts can be applied to the lighting system by replacing TL-D lamps with 36watt power consumption, 2850 lumens with LED tube type EM/ Mains T8 lamps, power consumption of 18.2 watts, 2900 lumens where energy savings are obtained by 49.4% or budget savings of Rp. 134,514,169,-]]>
