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RANCANG BANGUN PROTOTIPE PEMANTAU KEBOCORAN GAS MENGGUNAKAN SENSOR MQ-6 BERBASIS NodeMCU 8266 Anandita Praja Dwitama; I Gusti Ngurah Janardana; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.668 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p2

Abstract

Liquefied Petroleum Gas (LPG) leak detection and monitoring system is a step to anticipatethe danger of gas leaks. BPBD data for 2016 - 2020 fires due to LPG gas leakage are 50 cases,handling is still manual. The design of this prototype uses the Arduino NodeMCU 8266 module as themain controller. The sensor used by the MQ-6 sensor is suitable for detecting propane and butanegas in LPG. In order for the sensor to work optimally the sensor is set at a distance of 10 cm from thegas source. The prototype uses a solenoid valve which is a valve controlled with AC or DC electriccurrents through the selenoids. Buzzers and notifications via the telegram application complement theoutput of the prototype if a gas leak is indicated. The duration of the notification is sent depending onthe signal strength of the WiFi / provider used, while the duration of the buzzer sounds as long as thedetected gas level exceeds the value of the sensor set. The results achieved in the study, namely thegas leak monitoring prototype using the MQ-6 sensor based on NodeMCU 8266 was very effective.MCU node 8266 can be used to open / close valve electronics automatically. The ideal distance toread the gas leak smoke is 10 cm. The time the notification is sent depends on the signal strength ofthe WiFi / provider used, in this study it was found 80-92 dbm, the duration of the buzzer sounded aslong as the gas level was detected more than 200 ppm.
PERANCANGAN ALAT PENDETEKSI PENEBANG LIAR MENGGUNAKAN SENSOR SUARA BERBASIS IoT-RASPBERRY PI I Putu Gede Surya Angga Pranata; I Made Suartika; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (489.597 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i03.p17

Abstract

Protected forest areas have the main function of protecting life support systems. The protected forest area of ??Ekasari Jembrana Bali has an area of ??1.603 hectares. In the Ekasari protected forest there are many illegal logging actions. In 2020 there were two cases of wood theft. The types of wood stolen were reed and rosewood. In addition to these two cases, in 2018 to 2019 there were more than 10 cases of illegal logging that occurred, it is necessary to have a tool that is able to detect the occurrence of illegal logging in protected forests. The working system of this tool uses a Pi NoIR camera module to take pictures and a sound sensor FC-04 to detect the sound of a chainsaw with a value of 55 dB. This tool uses a Raspberry Pi microcontroller which functions to receive and process data, so that it is able to display warnings on websites and telegram applications. This tool has a detection range of 1,1304 hectares, so 1.418 tools are needed in the entire protected forest area of ??Ekasari Jembrana Bali.
ANALISIS PERHITUNGAN ULANG LAMPU PENERANGAN JALAN BYPASS NGURAH RAI Gede Andre Agusta Putra; I Ketut Wijaya; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (529.767 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p16

Abstract

Public Street Lighting is a facility needed as a navigation aid for road users, increasingthe safety and comfort of road users, and supporting environmental security. The lack of lightingon the Ngurah Rai Bypass road is then performed a recalculation analysis and replacing theexisting lamps with LED types in order to maximize the lighting contained in the Ngurah RaiBypass. Measurements are made starting from the intersection of the Bali Mandara Toll roadtraffic lights towards (East) Sanur which ends at the first traffic light after the Bali Mandara Tolltraffic light, this road is an Arterial type road with a road width of 8 meters with a road length of1270m. The method used in this research is descriptive quantitative, that is, data collection isdone through measurement using objective and standard tools. The calculation results are thencompared with the conditions that occur in the field using IBM SPSS Statistics. Based on theresults of the research, it shows that the lamps installed with 10.21 lux still do not meet SNI 11-20 lux. Changing the type of mercury lamp to a 120 Watt LED lamp produces 13.21 lux, whichmeets SNI for PJU lighting.
ANALISIS PERBANDINGAN OUTPUT DAYA LISTRIK PANEL SURYA SISTEM TRACKING DENGAN SOLAR REFLECTOR I B Kd Surya Negara; I Wayan Arta Wijaya; A A Gd Maharta Pemayun
Jurnal SPEKTRUM Vol 3 No 1 (2016): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.288 KB)

Abstract

Indonesia merupakan negara beriklim tropis yang memiliki intensitas radiasi matahari yang sangat besar dan intensitas radiasi tersebut berpotensi untuk dikembangkan menjadi Pembangkit Listrik Tenaga Surya. Efisiensi dari panel surya saat ini masih perlu pertimbangan lebih lanjut. Efisiensi panel surya yang rendah ini, berpengaruh pada hasil output daya listrik yang dihasilkan. Upaya untuk meningkatkan output daya listrik panel surya, yaitu dengan sistem tracking dan solar reflector. Penelitian ini bertujuan untuk mengetahui output daya listrik yang lebih maksimal. Metode dalam penelitian ini menggunakan sistem tracking yang pergerakannya berdasarkan waktu dan menggunakan solar reflector dengan cermin datar dan sudut reflector yang berbeda. Hasil dari perbandingan sistem tracking dengan solar reflector yaitu solar reflector menghasilkan output daya listrik lebih besar dibandingan dengan sistem tracking, dimana solar reflector menghasilkan output daya listrik sebesar 0.1224 Watt dan sistem tracking sebesar 0.1136 Watt.
PEMANFAATAN PEMBANGKIT LISTRIK TENAGA SURYA SEBAGAI CATU DAYA LISTRIK PADA KELOMPOK USAHA PERTANIAN I G N Janardana; I W Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.532 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p7

Abstract

It is time for solar power plants to supply electricity to agricultural businesses to avoiddependence on oil-fired electricity. Most agricultural businesses find it difficult to get electricitybecause they are located far from the center of the PLN network. The purpose of this study wasto determine the potential and design of PLTS for electricity needs in agricultural businesses.The method of analysis was carried out descriptively by calculating the primary data. The resultsof the analysis on each load requirement show that for a 500 watt load, 24 panels series SP-100-M36 Part Number 53-067, SR-500 - S-12V inverter, minimum battery 4666.66 Ah 47 unitsof Model SMT12100S are needed, 1000 watt load required 47 panels series SP-100-M36,Growatt 1000S inverter, 9333.33 Ah batteries 94 pieces Model SMT12100S, 1500 watt loadrequired 71 panels specification series SP-100-M36, Growatt inverter specification 1500Sminimum capacity battery 14000 Ah 140 pieces Model SMT12100S, 3000 watt load required142 pieces of SP-100-M36 specification panels, Sunny Boy 3000 TL inverter specifications,batteries with a minimum capacity of 28000 Ah 280 SMT12100S.Key words: Electric power, renewable energy, PLTS.
ANALISIS SISTEM PEMBUMIAN TOWER SALURAN TRANSMISI DARI GARDU INDUK KAPAL – GARDU INDUK GIANYAR IGP Agung Satya Wicaksana; IW Arta Wijaya; IGN Janardana
Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.567 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i04.p7

Abstract

This study aims to improve the earthing value of transmission lines which have an earthvalue less than the standard value off SPLN No 121: 1996, namely 10 and recommend anearthing system that meets the standards. Theemethodduseddissa descriptive method bycalculating the value of the earthing system by following the SPLN standard No. 121: 1996. Thisanalysis consists of several stages, namely a site survey, measuring soil resistance (R) tocalculate the value of soil resistivity (?) then calculating the value of grounding resistance with 5types of grounding systems to achieve grounding resistance 10 , namely one electrodegrounding system, 2 electrode grounding system planted vertically S > L, 2 electrode earthingsystem planted vertically S < L, plate earthing system, and a grid-rod earthing system. Theresults of the research are for paddy fields using a vertical one-electrode earthing system, thevalue is 7.32 ? with a manufacturing cost of Rp. 857,000, on farmland with a vertical oneelectrodeearthing system, the value is 8.36 ? with a manufacturing cost of Rp. 1,363,000, andon clay soil with a vertical one-electrode earthing system, the result is 7.98 ? with amanufacturing cost of Rp. 857,000.
PENGARUH JUMLAH SUDU PADA PROTOTYPE PLTMH DENGAN MENGGUNAKAN TURBIN PELTON TERHADAP EFISIENSI YANG DIHASILKAN I Gusti Ngurah Saputra; Lie Jasa; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.274 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p21

Abstract

Turbine is a component that plays an important role as an energy converter to be ableto generate electricity in the Micro Hydro Power Plant (MHP). The turbine used in this prototypeis a Pelton tubine. The Pelton turbine is a type of impulse turbine consisting of two blades as aprelude receiver for water jets from the nozzles by utilizing high water heads even though thewater discharge is small. This research will discuss the effect of the number of blades on therotation produced by the Pelton turbine and generator so that it can be seen the voltage,current, power produced that affects the torque value and efficiency obtained on the prototypeMHP. This study aims to obtain a turbine runner with the number of blades that can produce thehighest efficiency, then a variation of the pelton turbine runner is made with different number ofblade parameters from the runner with the number of blades according to the calculationobtained from the reference. Variations in the number of blades used are 14 blades, 16 blades,18 blades, 20 blades, and 22 blades. The results showed that the addition of the number ofblades starting from the smallest caused the performance of MHP to increase, the highestoutput obtained was using a turbine runner with a number of 22 blades which resulted in aturbine rotation of 852.2 rpm before the generator coupled and 497.2 rpm after coupling thegenerator. Generator rotation is 2133.8 rpm, Generator Voltage is 15.72 volts, Generator poweris 33.7 Watts and Torque is 0.6 Nm. The efficiency value using a runner with a number ofblades 22 is 4.54%. The resulting efficiency value is very low because the MHP prototype in generation is less effective and uses a small generation capacity DC generator, so it cannotgenerate power as much as hydraulic power.
PENGARUH DEBIT AIR TERHADAP? PUTARAN?TURBIN?DAN?DAYA?OUTPUT? YANG?DIHASILKAN?PROTOTYPE PLTMH?DENGAN?TURBIN?KAPLAN Ravinda Ariestya Pamungkas; I Wayan Arta Wijaya; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.818 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i02.p19

Abstract

Kaplan turbine is suitable turbine to use in the place that have small water fall (head)but need big water discharge. The problem from this turbine is the turbine need high waterdischarge to test the related parameters but it is too difficult to do because the water dischargeis not constant in the river. Based on the problems described, it is necessary to make a hydropower plant prototype using a Kaplan turbine with a laboratory scale so that it can obtainmaximum output result on a micro hydro power plant. The Method of analysis used is bycalculating the rimary data obtained. Prototype testing in this study uses water discharge thatvaries including 9 liter/s, 10 liter/s, 12 liter/s, 14 liter/s and 16 liter/s. The maximum outputobtained is when the water discharge is 16 liter/s which produces a turbine rotation of 228,3 rpmbefore the generator is coupled and 172,5 rpm after the generator is coupled, the generatorrotation is 902,5 rom, the generator voltage is 9,07 Volts, the generator current is 0,56Amperes, generator power is 5,09 Watt, torque is 0,28 Nm, and the efficiency occurs 1,62%.Based on the result of the study, the maximum output obtained is from the water discharge 16liter/s which is the biggest water discharge because an increase in the value of water dischargewill cause the micro hydro power plant performance to increase.
ANALISIS GANGGUAN HUBUNG SINGKAT SIMETRIS DAN ASIMETRIS UNTUK MENENTUKAN KAPASITAS PENGAMAN YANG TERPASANG PADA JARINGAN DISTRIBUSI 20 kV PENYULANG MAMBA I Kadek Purniawan Paramadita; Ngakan Putu Satriya Utama; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.47 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p09

Abstract

Gangguan hubungasingkat tenaga listrik ditimbulkan oleh hubung singkat tigaafaseasimetris, gangguan hubung singkat tidak simetris satu fase ke tanah dan gangguan hubung singkat tidak simetris antar fasa dan dua fasa ke tanah. Gangguan tersebut telah menyebabkan beberapa trip, kegagalan kerja relay dan recloser. untuk menentukan setting waktu kerja relay arus lebih dan recloser agar peralatan proteksi dapat bekerja dengan baik dilakukan simulasi gangguan hubung singkat pada beberapa titik lokasi gangguan yang dipilih berdasarkan kondisi di jaringan penyulang Mambal. Berdasarkan analisis, arus gangguan hubung singkat dipengaruhi oleh jarak tittik gangguan, semakin dekat titik gangguan dengan sumber maka semakin besar arus gangguan hubung singkat pada titik tersebut. Arus gangguan maksimum dan minimum hubung singkat mengakibatkan selisih waktu kerja relay di tiap lokasi dengan selisih waktu TMS selama 0,4 detik. Dilakukannya setting sistem proteksi pada penyulang Mambal sesuai dengan hasil analisis dapat memperbaiki selektifitas sistem proteksi pada Penyulang Mambal.
PrENGARUH.V/ARIASI.JUrMLAH.SUmDU-TERHAfDAP DiAYA OUTPUgT1PrADA2PROTObTYPE PEMBAyNGKIT2LIShTRIK> TENAxGA[MIKRO4HIuDRO0(PLrTMH) DEtNGAN9 MENGGUtNAKAN;TUoRBIN’KAPLAN I Komang Gede Darma Yasa; I Wayan Arta Wijaya; I Made Suartika
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (919.729 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i02.p11

Abstract

The Kaplan5Turbin is6a typepof turbine-that.can’be used=as an initial propolusion in thePLTMH system. The;Advantage; of this;Kaplan’Turbin is that it.can be;applied to;a low head with ahigh water flow rate..This study/aims;to’analyze’the’performance’of the Kaplan turbin with 5 variationsof the number of blades’consisting’of 3,4,5,6 and[7blades. The[maximum[rotational[speed[obtained bythe turbine with the;number;of;blades;5 with,an,average,value 216,8 rpm,before coupling with thegenerator. The,maximum/generator.rotational.speed that.can be.obtained.on a.turbine. that has thenumber of blades of is 865,9 rpm before .being loaded.and.749,9 rpm for the9 after load9condition .The voltage ,9current , and power9generated0are 8,7980volts, 0,419amperes,8and 3,59 wattsrespectively with a maximum torque 0,206 Nm, and efficiency of 1,53%
Co-Authors A A Gd Maharta Pemayun Agus Teja Ariawan Agus Trisna Saputra Anak Agung Gede Maharta Pemayun Anandita Praja Dwitama Antonius Ibi Weking Bagus Kurniawan Christ Ave Duga Purba Cokordei Gedei Indra Partha Devin Gede Herawan Dewa Gede Dede Pramana Dewa Gede Wahyu Adi Prayoga Galih Budi Santosa Ganggas B Maulana Idham Gede Andre Agusta Putra Gregorius Reza Dwi Nugroho I B Kd Surya Negara I Dewa Gede Bayu Satya Nugraha I Gede Agus Handi Saputra I Gede Anom Aditya Prawira I Gede Aries Gunawan I Gede Dyana Arjana I Gede Dyotha Yogadipha Bagas I Gede Gerry Julius Perdana I Gede Krisnayoga Kusuma I Gede Nadi Arta I Gede Ngurah Arya Raditya I Gede Putu Aditya Kresna Artha K I Gst Agung Putu Raka Agung I Gusti Bagus Wiradhi Yogathama I Gusti Made Bagus Kurniawan I Gusti Made Widiarsana I Gusti Ngurah Agung Mahardika I Gusti Ngurah Saputra I Kadek Agus Arta Yasa I Kadek Arya Wiguna I Kadek Dwi Artika Putra I Kadek Purniawan Paramadita I Ketut Adi Wicaksana I Ketut Wijaya I Komang Gede Darma Yasa I Komang Suarjana I Made Adi Purwa Adnyana I Made Alim Subawa I Made Ardika Tommy Saputra I Made Arsa Suyadnya I Made Darmayusa I Made Dwi Mertadiyasa I Made Eko Adi Setiawan I Made Mudiarta I Made Suartika I Made Suwartama Wijaya I Nengah Suweden I Nyoman Adi Guna Subawa I Nyoman Apriana Arta Putra I Nyoman Budiastra I Nyoman Budiastra I Nyoman Duarsana I Nyoman Setiawan I Nyoman Sudiatmika I Nyoman Upanayana I Putu Adhe Putra Novantara I Putu Andrean Wiranata I Putu Bayu Suka Yasa I Putu Elba Duta Nugraha I Putu Gede Surya Angga Pranata I Putu Jerry Akira Dinata I Putu Nanda Nugraha Utama I Putu Nova Suciawan I Putu Sudiarta I Putu Wahyu Indra Wedanta I Putu Yasa Darmadi I W. A. Premei Artha I Wayan Eka Prastia I Wayan Rinas I Wayan Sukerayasa I. P. Krisna Darma Putra I.M. Benny P.W. I.W. Parmadi Putra Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Dwiki Dharma Putra Ida Bagus Gede Wira Negara Ida Bagus Made Pandwa Putra IGP Agung Satya Wicaksana Indra Adi Permana Kadek Dwiky Sadha Widiarta Kadek Mirah Mahadewi Kadek Wahyudi Widiatmika Kadek Widipratama Khana Eland N.A Kharis Biantoro Krisda Bimas Permada l Gusti Ngurah Janardana Lie Jasa Made Ananta Pradnya Made Andi Kusumayana B Ngakan Putu Satriya Utama Ngurah Yowana Asta Prawangsa Ni Wayan Dian Puspita Sukma Dewi Ogik Azis Bukhori Ongky Wahyu Wicaksono Pande Putu Teguh Winata Pratolo Rahardjo Putu Agus Arcana Surya Putu Andi Dinata Putu Angga Juliantara Putu Juliartawan Ravinda Ariestya Pamungkas Riantika, I Gede Rama Sega Awaludin Tjok Gede Indra Partha Wahyu Adi Merta Wayan Gede Ariastina Yanu Prapto Sudarmojo