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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Jurnal Ilmiah Kursor International Journal of Engineering and Emerging Technology Informatika Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Riset Sistem Informasi dan Teknologi Informasi (JURSISTEKNI) Journal of Artificial Intelligence and Digital Business Majalah Ilmiah Teknologi Elektro Jurnal SPEKTRUM

Lie Jasa

Electrical Engineering Department, Udayana University

Author-ID : 291493

Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Mechanical Engineering Other

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PENGARUH TEKANAN AIR DAN SUDUT NOZZLE TERHADAP KARAKTERISTIK OUTPUT PADA PROTOTYPE PLTMH DENGAN TURBIN PELTON I Made Ardika Tommy Saputra; Lie Jasa; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Pelton turbine is an impulse turbine that is different from other turbines where the peltonturbine utilizes a large high water fall (head), even with a small water discharge. The problemwith Pelton turbine is that the head is still difficult to control because this type of turbine uses ahigh head to rotate the turbine runner and there is no formula / equation to determine the angleof the nozzle which produces maximum output. Based on the problems described, it isnecessary to make a micro hidro power plant prototype using a pelton turbine with a laboratoryscale so that it can do the testing of the influence of water and the nozzle angle to obtainmaximum output results on a micro hidro power plant using a pelton turbine. The prototypetesting in this study used various water pressures, namely 5 psi, 9 psi, 13 psi, 17 psi, 21 psi,and 25 psi with nozzle angles, namely 60º, 75º, and 90º. Based on the results of the study, anincrease in the value of water pressure provided with an optimal nozzle angle will cause themicro hidro power plant performance to increase. The maximum output obtained is when thewater pressure is 25 psi with a nozzle angle of 90º which produces a turbine rotation of 917 rpmbefore the generator is coupled and 326 rpm after the generator is coupled, the generatorrotation is 1321 rpm, the generator voltage is 12.9 Volts, generator power is 30.96 Watt, torque is 0.98 Nm, and the highest efficiency occurs when the water pressure is 21 psi with a nozzleangle of 90º which is 3.91%.

APLIKASI MOBILE DETEKSI PENYAKIT DEMODEKOSIS PADA ANJING MENGGUNAKAN METODE CONVOLUTIONAL NEURAL NETWORK Ardy Wijaya; Duman Care Khrisne; Lie Jasa
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Demodex is a skin disease in dogs caused by the protozoan mite Demodexfollicularumvar canis or Demodex canis. These mites are found in the hair roots and sometimesin the glands, almost the entire life cycle of this type of mite is on the skin, if it lasts for a longtime it can cause death in dogs that are infested by these lice This study aims to detectdemodicosis in dogs with a mobile application using a convolutional neural network methodwith a squeezenet architecture model with radam optimization. This application works by takingpictures directly through the cellphone camera then processing it with a trained model then theoutput of this application displays the probability value of the dog being indicated as demodexor not. Based on the results of testing using the black box testing method, the overallfunctionality of the application has been declared successful in accordance with its respectivefunctions and objectives. From the results of validation data testing using 60 validation data,based on the accuracy demodecosis detection application is able to recognize validation datacorrectly as many as 45 data and 15 data has not been properly recognized, so that theaccuracy value is 75% and the f1-score value is 0,595.

KARAKTERISTIK KINERJA TURBIN NEST-LIE PADA PROTOTIPE PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO I Nyoman Wira Mastika; Lie Jasa; Ida Bagus Gede Manuaba
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Water energy is energy that comes from water flow which is used to produce electricalenergy by using a flow of water that flows to turn a turbine, then the turbine is connected to agenerator. Micro-hydro power plants are usually built in areas that have the potential for generatingelectricity in a small capacity. The choice of location of a micro hydro power plant is largelydetermined by the potential for water fall or often called a waterfall. Parameters that can be changedto improve turbine efficiency are the shape of the turbine blade, turbine blade volume, nozzle angle,and nozzle position. The method used is the method of observation by observing and testing directlyand the method of literature by studying the literature - literature from several references.Performance characteristics of nest-lie turbines produce higher torque values than triangular turbineblades. Nest-lie turbine produces a torque value of 0.0076 Nm at position 450 nozzle and nozzle angle100. This shows that the nest-lie turbine has characteristics that are better than a triangular turbineblade.

ANALISA PENGARUH KEMIRINGAN HEAD DAN VARIASI SUDUT BLADE TURBIN ULIR TERHADAP KINERJA PLTMH I Putu Wahyu Indra Wedanta; Wayan Arta Wijaya; Lie Jasa
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Bali has many waterfalls which can be used as Micro Hydro Power Plant (MHPP). Ituses 2 types of turbines, one of them is screw turbine or Archimedes screw. Screw turbine isstill rare, therefore a MHPP modeling needs to be made to obtain specific data. This study willdiscuss the analysis of the influence of the Head Slope and the Variation of the Angle of theBlade of Turbine to Performance of the MHPP, to determine the torque, turbine rotation,voltage, current, power and rotation produced by the generator. Best measurement results onthe slope of the head 400 and variations in blade angle 280. Voltage, current and powerobtained by 73.8 V, 148.9 A and 10.98882 W. At the turbine speed before coupling, thegenerator is obtained 596 rpm and 304 rpm after coupling, while the generator rotation is 3863rpm. The resulting torque and efficiency are 0.3492 Nm and 14.16%.

RANCANG BANGUN MODUL 3 PRAKTIKUM SISTEM EMBEDDED BERBASIS RASPBERRY PI (PERCOBAAN 3: PENGONTROLAN LAMPU MELALUI APLIKASI ANDROID) Hindro Kusumo Wahid; Pratolo Rahardjo; Lie Jasa
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The role of university in supporting embedded system development and Internet Of Thingsimplementation seen with Embedded System + Lab Course in Electrical Engineering StudyPorgram, Engineering Faculty, Udayana University. Embedded System + Lab Course is a newcourse, so it’s not available yet learning tools in the terms of supporting the course, then it isnecessary to create Embedded System Practicum Module. Embedded System PracticumModule cosists of 4 kinds of experiment. 1st experiment: monitoring servo motor arm positionchange with PIR sensor in Android application. 2nd experiment: monitoring servo motor armposition change with ultrasonic sensor in Android application. 3rd experiment: controlling andmonitoring light bulb with Android application. 4th experiment: controlling and monitoring lightbulb with Telegram Bot. Given the many results of the discussion of experiments and subexperimentsin module 3, in this article, only experimental data 3 data will be discussed.Experimental data in 3rd module showing the success of tool performance and output datasuitability of monitoring and controlling lamp load status on Python Shell, Firebase and Androidapplication. Can be concluded in this research that the success of making 3rd ModuleEmbedded System Practicum(3rd Experiment : Lamp Controlling Through Android Application)has worked well. The overall experimental data can show the success of parsing JSON data onthe Python Shell platform, Firebase database, Android application.

RANCANG BANGUN PROTOTYPE PLTMH DENGAN TURBIN PELTON SEBAGAI MODUL PRAKTIKUM I Gusti Putu Andhita Mahayana; Lie Jasa; I Gusti Ngurah Janardana
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Learned about the use of water resources as a micro hydro power plant is very importantto be carried out by Electrical Engineering students at Udayana University. At this time atConvertion Energy Laboratory there was not been a practicum about Mycro Hydro Power Plandue to the unavailability of guide practicum module and micro hydro power plant prototypes.Therefore in this research was design and build a Prototype of Microhydro Power Plan wich had18 buckets where had 5 cm width, 4,47 cm length, 1,6 height and the tickness was 0,28 cm.This prototype can made 4,5 L/s water discharge, 9,809 W Power, and the torque was 0,26 Nm. So that prototype had 1,48% efficiency. To make this prototype as a complete practicummodule was arranged practicum guide modules that was explain abaout Characteristic of MicroHydro Power Plan with Pelton Turbines.

ANALISIS PENGARUH PENAMBAHAN GEARBOX PADA TURBIN ARCHIMEDES SCREW UNTUK PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) I Gede Ngurah Arya Raditya; Lie Jasa; I Wayan Arta Wijaya
Jurnal SPEKTRUM Vol 8 No 3 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Utilization of irrigation flows as a source of electrical energy is not too much, because irrigation flows have low head heights so it's hard to do the design and type of power plant used. In addition, the water discharge in the irrigation canal is also a problem because the water seed in the irrigation canal is not always constant which is influenced by seasons and weather factors. In this study, we will discuss the effect of adding a gearbox to the Archimedes screw turbine on the output value of the generator such as electric current, voltage, efficiency, and torque. This micro hydro power plant uses an Archimedes screw turbine which has 9 blades with an angle of 24o and a blade thickness of 0.25 cm. on the gearbox used using a spur gear type which has a total ratio of 4: 9. The results of research conducted on irrigation lines in Munggu Village, Mengwi District, Badung Regency, got the highest rotation results, namely 160.7 rpm at the turbine, 882.4 at gearbox and 1013, 8 rpm on the generator. The highest voltage and current generated by the generator are 11.15 volts and 0.66 amperes. The torque obtained is 0.45 Nm and the highest efficiency is obtained at 0.00638%.

ANALISIS DAN PERBANDINGAN SEGITIGA KERJA: TURBIN SUDU SETENGAH LINGKARAN, SUDU SEGITIGA DAN SUDU SIRIP UNTUK MENGHASILKAN RPM YANG TERTINGGI Gregory Rama Darantiah Ruing; Antonius Ibi Weking; Lie Jasa
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

At present the power plant has a high dependence on energy sources such as diesel, natural gas and coal, while its energy source in nature is increasingly scarce, this situation encourages the development of renewable energy, one of which is in micro hydro power plants. This study aims to determine the effect of the width of the work triangle on the highest rpm produced. the fall of water on the pinwheel is set from the position angle of the nozzle 00, 150, 300, 450, 600, 750 and from the angle of the nozzle 00, 50, 100, 150, 200, 250, 300, 350 and 400 on the semicircular blade turbine, triangle blade turbine , and fin blade turbines. Semicircular turbine blade, working triangle area produces greater rpm at position of angle nozzle 00 and angle of nozzle 250 with area of work triangle 360,36 cm2, where the position produces 216 rpm at windmill rotation and 1626 rpm at generator rotation. When the nozzle position angle 150 and the nozzle angle 200 with the working triangle area 264.27 cm2, produce 221 rpm at the pinwheel rotation and 1711 rpm at the generator rotation. while at the nozzle position angle of 300 and the angle of the nozzle 100 the area of the triangle works 134.37 cm2 and produces 173 rpm at the spinning wheel and 1307 rpm at the generator rotation. on the triangle blade turbine and fin blade, the working triangle area does not affect the rpm produced.

DESIGN OPTIMIZATION OF MICRO HYDRO TURBINE USING ARTIFICIAL PARTICLE SWARM OPTIMIZATION AND ARTIFICIAL NEURAL NETWORK Lie Jasa; Ratna Ika Putri; Ardyono Priyadi; Mauridhi Hery Purnomo
Jurnal Ilmiah Kursor Vol 7 No 3 (2014)
Publisher : Universitas Trunojoyo Madura

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DESIGN OPTIMIZATION OF MICRO HYDRO TURBINE USING ARTIFICIAL PARTICLE SWARM OPTIMIZATION AND ARTIFICIAL NEURAL NETWORK aLie Jasa, bRatna Ika Putri, cArdyono Priyadi, dMauridhi Hery Purnomo a,b,c,d Instrumentation, Measurement, and Power Systems Identification Laboratory Electrical Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia a Electrical Engineering Department, Udayana University, Bali, Indonesia b Electrical Engineering Department, Politeknik Negeri Malang, Malang, Indonesia. Email: liejasa@unud.ac.id Abstrak Turbin digunakan mengkonversi energy potensial menjadi energy kinetik. Kapasitas Energy yang dihasilkan dipengaruhi oleh sudu-sudu turbin yang dipasang pada tepi. Sudu turbin dirancang seorang ahli dengan sudut kelengkungan tertentu. Efisiensi dari turbin dipengaruhi oleh besarnya sudut, jumlah dan bentuk sudu. Algoritma PSO dapat digunakan untuk komputasi dan optimasi dari design turbin mikro hidro. Penelitian ini dilakukan dengan; Pertama, Formula design turbin dioptimasi dengan PSO. Kedua, Data hasil optimasi PSO diinputkan kedalam jaringan ANN. Ketiga, training dan testing terhadap simulasi jaringan ANN. Dan yang terakhir, Analisa kesalahanr dari jaringan ANN. Data PSO sebanyak 180 record, 144 digunakan untuk training dan sisanya 40 untuk testing. Hasil penelitian ini adalah MAE= 0.4237, MSE=0.3826, dan SSE=165.2654. Error training terendah didapatkan dengan algoritma pembelajaran trainlm. Kondisi ini membuktikan bahwa jaringan ANN mampu menghasilkan desain turbin yang optimal. Kata kunci: Turbin, PSO, ANN, Energi Abstract Turbines are used to convert potential energy into kinetic energy. The blades installed on the turbine edge influence the amount of energy generated. Turbine blades are designed expertly with specific curvature angles. The number, shape, and angle of the blades influence the turbine efficiency. The particle swarm optimization (PSO) algorithm can be used to design and optimize micro-hydro turbines. In this study, we first optimized the formula for turbine using PSO. Second, we input the PSO optimization data into an artificial neural network (ANN). Third, we performed ANN network simulation testing and training. Finally, we conducted ANN network error analysis. From the 180 PSO data records, 144 were used for training, and the remaining 40 were used for testing. The results of this study are as follows: MAE = 0.4237, MSE = 0.3826, and SSE = 165.2654. The lowest training error was achieved when using the trainlm learning algorithm. The results prove that the ANN network can be used for optimizing turbine designs. Keywords: Turbine, PSO, ANN, Energy

Modification of ISONER Framework as Enterprise Service Bus to Build Consultation Robot Using External Engine I Made Sukarsa; I Ketut Gede Darma Putra; Nyoman Putra Sastra; Lie Jasa
International Journal of Engineering and Emerging Technology Vol 3 No 2 (2018): July - December
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University

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Balinese Calendar, the result of astronomy development, is the foundation for Balinese religious implementation as one of the key elements of tourism industry in Bali. In addition to the printed and electronic versions, an engine that can be used to function as a service for advanced application development is not yet available. Balinese calendar is one of the complementary materials commonly used by Sulinggih in giving consultations about days considered to be the most appropriate to perform ceremonies. Sulinggih is a figure considered to have expertise in Balinese Calendar and its uses. This research will transfer the basic knowledge of Balinese Calendar into an engine on MySQL machine. After the engine undergoes a test, a text-based dialogue model will be designed to form a Sulinggih robot with various natural language algorithms so that it can be accessed through social media messenger services, namely telegram. In order to successfully conduct this research, a phase of system development will be carried out by referring to the System Development Life Cycle model. The process of developing dialog model will involve the use of ISONER framework which will be modified to function as an Enterprise Service Bus(ESB)

Co-Authors A. Andriani A.I. Weking Abdul Qodir Achmad Bahri Aditya Pradana, Aditya Aldy Allan Ghozali Alif Rizqian Aki Amalia, Zakiyah Anak Agung Istri Ngurah Marhaeni Anak Agung Ngurah Amrita angga kharisma krishnastana Antonius Ibi Weking Antonius Ibi Weking Ardy Wijaya Ardyono Priyadi Arta Wijaya Daffa Dzaudan Dalimunthe, Ernando Rizki Daniel Kristama Devin Gede Herawan Dewa Ayu Sri Santiari Dewa Made Wiharta donny christiawan Duman Care Khrisne Dwi Suryadewi Efina Marianis Eka Lilla Ananta Elka Pranita Ernando Rizki Dalimunthe G M Arya Sasmita Gabriella Sunsugos Sianturi Gde Brahupadhya Subiksa Gde Dendy Denhero Gede Pudja Dianda Mayapada Gregory Rama Darantiah Ruing H. Daniel Hindro Kusumo Wahid I B GD Siwa Puja Bujawan I Gede Abi Yodita Utama I Gede Agus Darmawan I Gede Ngurah Arya Raditya I Gede Widnyana Putra I Gst Agung Putu Raka Agung I Gst Md Ngurah Bimantara I Gusti Agung Indrawan I Gusti Agung Made Yoga Mahaputra I Gusti Made Bagus Kurniawan I Gusti Ngurah Agastya Citranath I Gusti Ngurah Agung Jaya Sasmita I Gusti Ngurah Saputra I Gusti Ngurah Wira Partha I Gusti Putu Andhita Mahayana I Gusti Putu Mastawan Eka Putra I Kadek Agus Arta Yasa I Kadek Ardika I ketut Gede Darma Putra I Ketut Wiryajati I Made Anand Gopal I Made Ardika Tommy Saputra I Made Suartika I Made Sukarsa I N Satya Kumara I Nyoman Setiawan I Nyoman Wira Mastika I Putu Ardana I Putu Elba Duta Nugraha I Putu Juliana I Putu Wahyu Indra Wedanta I Wayan Arta Wijaya I Wayan Budiarsana Saputra I Wayan Sukerayasa I. K. A. Handayana I. K. A. Sukariawan I.D.N.A. Purnata I.G.N.S. Bramantha P I.K.H. Valentino I.P. Ardana I.P. Kuswara A P Ida Ayu Dwi Giriantari Ida Ayu Sri Sinta Anjani Ida Bagus A. Swamardika Ida Bagus Agung Eka Mandala Putra Ida Bagus Dwiki Dharma Putra Ida Bagus Gede Manuaba Ida Bagus Krishna Putra Irene Trivania IWA Wijaya Jaka Persada Sembiring Joannes Mario Graciano Kapu Kadek Darmaastawan Kadek Rekha Agustha Kapu, Joannes Mario Graciano Khaeril Gusri l Gusti Ngurah Janardana L.G.M. Karisma Linawati Linawati Made Dinda Pradnya Pramita Made Sri Indra Dewi Adnyana Made Sudarma Makmur Fernando Manuaba, Ida Bagus Gede Martin Luhut Ariberthson Sihaloho Mauridhi Hery Mauridhi Hery Purnomo Moch Deny Triatmaja Mohammad Putra Maulidin Nanda Dana Pala Naradhiya, Gede Ngurah Yowana Asta Prawangsa Ni Komang Ayu Sri Anggreni Ni Wayan Lusiani Nia Paramitha Novia Utami Putri Nyoman Putra Sastra P. A. S. Cempaka Pala, Nanda Dana Pedro Paulo De J. Costa Henriques Pranita, Elka Pratolo Rahardjo Putri Agung Permata Sari Putu Althea Putri Wiradani Putu Ardana Putu Arya Mertasana Putu Lanang Bagus Suputra Jaya Amertha Putu Risanti Iswardani Rama Beta Herdian Ratna Ika Putri Ronilaya, Ferdian Rukmi Sari Hartati Rukmi Sari Hartati Saputra, Dharma Bagus Semuel Kete Sarungallo Sianturi, Rednal Josua Surya Pramana Suryadewi, Dwi Syamsiana, Ika Noer Togatorop, Josua Febrian Tom Gerraldo Salomo Situmeang Triatmaja, Moch Deny Veronica Ambassador Flores Wayan Gede Ariastina Wiener Nixon Nababan Y. Lapian Yanu Prapto Sudarmojo Yanu Prapto Sudarmojo Zulfachmi, Zulfachmi

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