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All Journal Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Majalah Ilmiah Teknologi Elektro Jurnal Teknosains Rekayasa Mesin Nomosleca ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Journal of Mechanical Engineering Science and Technology Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan EPI International Journal of Engineering Mechanical Engineering for Society and Industry Majalah Ilmiah Teknologi Elektro
I Gusti Ngurah Nitya Santhiarsa
Program Studi Teknik Mesin Fakultas Teknik Universitas Udayana
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Transportation

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EFEK KOMPOSISI DAN PERLAKUAN SINTERING PADA KOMPOSIT Al/(SiCw+Al2O3) TERHADAP SIFAT FISIK DAN KEAUSAN Suprapto, I Wayan Lega; Suarsana, Ketut; Santhiarsa, Nitya
Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan Vol 1, No 1 (2017): Jurnal Muara Sains, Teknologi, Kedokteran dan Ilmu Kesehatan
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmstkik.v1i1.423

Abstract

Pengembangan material komposit berbasis logam pada dunia industri cukup potensial untuk memenuhi akan komponen-komponen permesinan. Dengan adanya perkembangan bahan yang sangat pesat, maka dituntut untuk menghasilkan bahan ringan dan murah yang merupakan persyaratan utama dalam dunia industri pembuatan komponen-komponen mesin. Hal ini memunculkan inovasi baru dalam pembuatan Aluminium Matrix Composite (AMC) yang berbasis matrik Alumunium dengan penguat Silicon Carbon dan Al2O3 partikel. Metode yang digunakan dalam penelitian adalah dengan proses powder metalurgi dan variasi komposisi penguat komposit. Awal proses komposit dibuat dengan variasi komposisi matrik Aluminium dengan penguat SiC+Al2O3 dalam komposit. Komposisi Aliminium : 80% wt dengan variasi penguat 20% wt. Pembuatan material uji dilakukan dengan proses metalurgi serbuk dimana gaya tekan 25 N. Variasi perlakuan waktu sintering adalah  1 jam dan 3 jam pada temperatur 500oC, 550oC dan 600oC. Pengujian karakteristik dilakukan untuk menggetahui sifat fisik dan mekanik komposit. Hasil penelitian adalah dengan penambahan komposisi persen berat SiC dan Alumina (Al2O3) memberikan pengaruh pada sifat fisik dan mekanik komposit. Dimana densitas dan keausan  meningkat terjadi pada setiap penambahan Alumina (Al2O3) itu sendiri. Sebaliknya porositas menurun dengan meningkatnya komposisi penguat. Hubungan antara sifat fisik dan mekanik dari masing-masing komposisi penguat SiCw dan Al2O3 pembentuk komposit yang dibuat, memberikan densitas 2.589 gr/cm3 dan keausan yang terjadi 0,005 gr  pada perlakuan sintering 600oC dengan waktu tahan 3 jam. 
Immersion Duration Effect of Purple Leaf Extract (Graptophllum Pictum) on DSSC SANTHIARSA, I GUSTI NGURAH NITYA; JAYA, KOMANG ALIT KUMARA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.867

Abstract

ABSTRAKSalah satu sumber energi terbarukan yang dapat digunakan sebagai energi alternatif adalah energi matahari. Teknologi sel surya generasi ke-3 adalah Dye Sensitized Solar Cell (DSSC) yang dapat mengonversi sinar matahari menjadi listrik. Daun ungu merupakan daun yang tersebar di Indonesia yang juga merupakan daun yang ekonomis. Pada penelitian ini ekstrak pucuk daun ungu digunakan sebagai pewarna sensitizer yang diekstraksi dengan alkohol 96% dengan rasio campuran 20 gram pucuk daun ungu yang telah ditumbuk hingga halus dengan alkohol 50 ml, kemudian dilakukan perendaman dengan variasi perendaman 12, 24, dan 36 jam. Tujuan penelitian ini adalah untuk mengetahui pengaruh waktu perendaman terhadap tegangan yang dihasilkan oleh DSSC. Hasil arus tertinggi diperoleh pada variasi perendaman 36 jam sebesar 0,8 μA. Perendaman selama 12 jam sebesar 0,6 μA dan perendaman 24 jam sebesar 0,7 μA.Kata kunci: DSSC, daun ungu, sel surya, lama perendaman. ABSTRACTOne of the renewable energy sources that can be used as alternative energy is solar energy. The 3rd generation solar cell technology is Dye Sensitive Solar Cell (DSSC) which can convert sunlight into electricity. Purple leaves are leaves that are scattered in Indonesia which are also economical leaves. In this study, purple leaf shoot extract was used as a sensitizer dye extracted with 96% alcohol with a mixture ratio of 20 grams of purple leaf shoots that had been ground until smooth with 50 ml alcohol, then soaking was carried out with immersion variations of 12, 24, and 36 hours. The purpose of this study was to determine the effect of immersion time on the stress generated by the DSSC. The highest current results were obtained in the 36 hours immersion variation of 0.8 μA. Immersion for 12 hours was 0.6 μA and immersion for 24 hours was 0.7 μA.Keywords: DSSC, purple leaf, solar cell, immersion duration.
Characteristics of Active Carbon from Utilization of Red Chili Trees (Capsicum annuum L) Ni Made Dwidiani; Putu Wijaya Sunu; Gusti Ngurah Nitya Santhiarsa
EPI International Journal of Engineering Vol 2 No 1 (2019): Volume 2 Number 1, February 2019 with Special Issue on Composite Materials & Stru
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022019.03

Abstract

This work studies the use of red chilli tree (capsicum anuumm L) waste as material of activated carbon and examines the morphological structure and elemental composition of the activated chili trees. The morphological structure was measured at TekMIRA (Pusat Penelitian dan Pengembangan Teknologi Mineral dan Batubara, Bandung) by using the scanning electron microscope (SEM), and the composition of the elements of carbon, hydrogen, nitrogen and ash is determined by the ultimate testing analysis with the ASTM D5373 standard. In the testing procedure, activated carbon is made from red chili tree waste by dehydration with a temperature of 2000 C for 1 hour and carbonized with a temperature of 3750 C for 1 hour. Then, the chemical activation (NaOH) is made in variation of concentration of 1%, 3%, and 5% with soaked time 24 hours, and dried at 2000 C for one hour. The carbonization at a concentration of 1% (NaOH) gave the best result on activated carbon from red chili trees.
PELATIHAN TEKNIK PELAPISAN LOGAM DENGAN METODE ELEKTROPLATING UNTUK INDUSTRI KERAJINAN LOGAM DI KAMASAN PRIAMBADI PRIAMBADI; NITYA SANTHIARSA; SUARNADWIPA SUARNADWIPA; BANDEM ADNYANA
Buletin Udayana Mengabdi Vol 6 No 1 (2007): Volume 6 No.1 - April 2007
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8.422 KB)

Abstract

ABSTRACT Electroplating is a metal or non-metal coating process with electrolyze that use direct current (DC) and electrolyte (chemical solution) that has a function as medium to supply metal ions. The function of electroplating are protecting metal from corrotion attack, adding surface hardness and improving quality of metal surface. Electroplating process basically has four steps; cleaning, washing, coating and protecting. For a quality result, the coating process need a right and optimum condition of operation, such as, a right concentration of electrolyte, a right voltage or current, and a right temperature.
PENGEMBANGAN DESAIN SISTEM BEJANA BERTEKANAN UNTUK MENINGKATKAN EFISIENSI DAN KUALITAS PRODUK PEMINDANGAN Nitya Santhiarsa; Suarnadwipa Suarnadwipa
Buletin Udayana Mengabdi Vol 9 No 2 (2010): Volume 9 No.2 – September 2010
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.29 KB)

Abstract

Production process of boiled [of] sea fish still uses the traditional technology ( boiled with the opened vessel).The business of boiled fish in Kusamba increases quite a lot although it is still traditionally applied. It is the consequence required by effort of development of design system of boiled with the pressure vessel system. System of boiled with the pressure vessel to yield the thrift energy of equal to 25 % compared to by application of boiled standard for the capacities of same and poaching temperature increase to 30? C. The application of boiled with pressure vessel compared to the opened vessel was more effective.
Pengaruh variasi kuat arus dan kecepatan pengelasan terhadap sifat mekanik hasil pengelasan SAW plat baja SS41 grade A IN Budiarsa; IGN Nitya Santhiarsa
Jurnal Energi Dan Manufaktur Vol 1, No 1 Juni 2006
Publisher : Department of Mechanical Engineering, University of Udayana

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Abstract

Welding is a method used to joint metal or metal alloy that take heat energy from welding machine. On welding process, there is occurred the fusion between base metal with filled metal. In base metal, there is founded heat affected zone(HAZ) which to go throw heating and cooling cycles that produce the changes of microstructure of metal so that make mechanical behavior of material changes. This research discuss the affect of variation of electric current and welding speed on mechanical behavior of steel plate SS41 Grade A, that is for understanding the changes of toughness caused by welding process, so then could choice the right parameter welding and know the changes of material toughness. The method that used in this research is factorial experiment with two factor are electric current and welding speed. Based on research results, both of electric current and welding speed have real impact for toughness, where electric current more and more high make toughness decrease, afterward, welding speed more and more high make toughness increase.
The Effect of Forging Process on the Fracture Toughness and Hardness of Bronze as Gamelan Instrument Material IGN. Priambadi; IKG Sugita; CI Putri Kusuma K; IGN. Nitya Santhiarsa
Jurnal Energi Dan Manufaktur Vol 3, No.2 Oktober 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.579 KB)

Abstract

Bronze especially tin-bronze is most used as base material in making of music instrument such as bell, gamelan and others music instrument. In making of gamelan product, tin-bronze which is alloying between cooper and tin are cast, forged, harmonized and finished finally. Production process and composition are important thing should be noticed. Composition to be used by craftsman is very various depend on customary. In this research, the problem to be investigated is how much the hardness change and fracture toughness due to variation of deformation level. The purpose of this research is to know the effect of deformation level on the hardness and fracture toughness of gamelan base material, so that is hoped can yield bronze good quality as gamelan base material. At melting process of specimen, bronze is made with composition 77,5%Cu – 22,5% Sn according to craftsman composition used. The levels of specimen deformation are 5%, 10%, and 15%. Before forging process, specimens are given heat treatment with temperature 800oC during 30 minutes. Measurement of material hardness use of Vickers Method and fracture toughness test use of Three Point Bending (ASTM E 399-90) model. The result of research shows that t, the higher hardness and fracture toughness to be obtained.
Pengaruh posisi pengelasan dan gerakan elektroda terhadap kekerasan hasil las baja JIS SSC 41 I Gusti Ngurah Nitya Santhiarsa; I Nyoman Budiarsa
Jurnal Energi Dan Manufaktur Vol 3, No.2 Desember 2008
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.495 KB)

Abstract

At Welding process, position of welding and movement of electrode have influence for the mechanic properties of product. Research into this study influence position of welding and movement of electrode in welding process for the change of hardness properties of Steel material SSC 41.The Method used that is factorial Experiment factorial method, where there are two factor that is position of welding and electrode movement. On welding position there three position that is position flat, vertical and over head. At movement of electrode there three movement that is movement of circle pattern, pattern of Zig-zag,and pattern C. Pursuant to research result, position of welding and movement of electrode used have of level significance influence into hardness value, highest mean Value of hardness Vickers is 513,891 Kg/mm2 there are at welding position variable to the head and C pattern electrode movement, while lower mean value hardness of Vickers is 441,348 Kg/mm2 at welding position variable level off and at zigzag pattern electrode movement.
Teknologi Hijau: Perancangan Mesin Bor Biopori I Gusti Ngurah Nitya Santhiarsa
Jurnal Energi Dan Manufaktur Vol 11 No 2 (2018): Published in Oktober 2018
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.391 KB) | DOI: 10.24843/JEM.2018.v11.i02.p04

Abstract

Pembangunan fisik di perkotaan berdampak pada dua sisi, pada satu sisi, sarana prasarana untuk pelayanan penduduk semakin lengkap, dan pada sisi lain, terjadi penyusutan areal terbuka hijau. Salah satu akibat susulan dari penyusutan luas ruang terbuka hijau adalah makin menipisnya cadangan air pada cekungan air tanah. Salah satu solusi untuk mengatasi masalah ini adalah dengan pembuatan biopori pada kawasan yang terbangun. Pembuatan biopori bisa dilakukan secara manual yaitu dengan bor biopori manual dan dengan bantuan mesin bor biopori. Proses perancangan mesin bor biopori berdasarkan proses desain elemen mesin, mulai dari analisis karakter kekuatan tanah, analisis gaya dan daya bor, perhitungan elemen mesin yang digunakan, dan pembuatan prototype. Kegiatan perancangan mesin bor biopori telah menghasilkan sebuah prototype mesin dengan daya motor 0,6 kW dan putaran mesin 500 rpm. Physical development on campus on two sides, on the one hand, facilities for population services are increasingly complete, and on the other hand, there is a shrinking of green open areas. One consequence of the subsequent shrinkage of the wide open space is to deplete the air reserve in the ground air basin. One solution to solve this problem is to make a biopori in the area that is built. Biopori production can be done manually, with a manual biopori drill and with the help of a biopori drilling machine. Soil Surface Control Techniques, Characteristic Analysis, Style Analysis, Style Analysis, Energy Style, and Prototype Making. The design of the biopori drilling machine has produced a prototype engine with a motor power of 0.6 kW and a 500 rpm engine speed.
Perbandingan karakteristik shock breaker standar dan modifikasi pada sepeda motor I Made Parwata; IGN Nitya Santhiarsa; Benatyar -
Jurnal Energi Dan Manufaktur Vol 1, No 1 Juni 2006
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (20.265 KB)

Abstract

During driving, vibration is one of some comfortable point. Vibration can appear as the result of road surface beside itsengine vibration. To decrease vibration caused road surface the vehicle was completed with shock breaker. This experiment was conducted in order to investigate the effect of vibration on the comfortable in driving. The shock breaker and body of vehicle will be modeled in single degree of freedom in the vibration system. By using two-model shock breaker standard and modification hence the model was tested, and then the results were applied to Janeway criteria to examine its comfortable. From both the experiment and calculation, it was found that the amplitude of standard and modification shock breakerexceeded the maximum allowable amplitude of Janeway comfortable criteria.
Co-Authors Achmad Assad Sonief Andoyo Rifky Widighda Benatyar - CI Putri Kusuma K Daud Simon Anakottapary Dewa Ngakan Ketut Putra Negara Dwidiani, Ni Made Eko Marsyahyo I Gusti Agung Alit Suryawati I Gusti Bagus Wijaya Kusuma I Gusti Ketut Puja I Gusti Ngurah Priambadi I Gusti Ngurah Putu Tenaya I Kade Agus Sugiarta I Ketut Adi Sugita I Ketut Suarsana I Made Parwata I Nengah Suarnadwipa I Nyoman Budiarsa . I Nyoman Gede Wardana I Putu Agus Tina I Wayan Bandem Adnyana I Wayan Lega Suprapto JAYA, KOMANG ALIT KUMARA Kelvin Ryanta Tanato Ketut Astawa Komang Alit Kumara Jaya Luh Putu Ike Midiani M.Pd S.T. S.Pd. I Gde Wawan Sudatha . Negara, I Gede Artha Negara, Komang Metty Trisna Ni Made Dwidiani NPG Suardana Putu Wijaya Sunu Si Putu Gede Gunawan Tista Sibarani, Relius Zakaria Suardana, Ngakan Gede Putu Suprapto, I Wayan Lega Tjokorda Gde Tirta Nindhia Wayan Nata Septiadi Widiantara, Ida Bagus Gde Willy Satrio Nugroho