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All Journal Jurnal Energi Dan Manufaktur Jurnal Pendidikan Teknik Mesin Jurnal Inovator Majamecha J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Otopro Jurnal Pendidikan Teknik Mesin Undiksha Quantum Teknika International Journal of Mechanical Engineering Technologies and Applications (MECHTA) al-fikrah: Jurnal Manajemen Pendidikan Nusantara of Engineering (NOE) Journal of The Indonesian Society of Integrated Chemistry J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
I Gede Wiratmaja
Universitas Pendidikan Ganesha
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : Quantum Teknika

 1 
Analisis Perbandingan Unjuk Kerja Motor Bensin Dengan Penambahan Groundstrap dengan Material Tembaga Dan Perak Pada Kabel Koil Busi Wijaya, Hardian Putra; Dantes, Kadek Rihendra; Wiratmaja, I Gede
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 2, No 2 (2021): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v2i2.10787

Abstract

This research aimed to (1) Determining the differences in power and torque to use of a coil standard, a copper, and silver wire ground strap variation coils. (2) Determining the color characteristics of the sparks' size generated from the use of standard coils, variation coils of copper, and silver ground strap. This research used an experimental method. The data analysis technique used descriptive analysis, namely, observing and recording the test results and then concluding in tables and graphs. The test results show that an increase in power, and torque is generated in this test. The highest results were obtained using a silver ground strap variation coil with a power of 11.3 hp and torque of 12.05 Nm. In this case, the percentages are 7.6% and 7.8% from the lowest results of the standard coil. There are different colors, sizes, and characters obtained in the test of sparks. The dark blue-purplish sparks color is obtained from the silver wire ground strap variation coil, which can increase motor performance in a motorcycle. These results suggest that the ground strap on the spark plug coil wire can provide an increment in engine performance.
Pengaruh Variasi Lilitan Pipa Kapiler pada Line Suction terhadap Laju Pendinginan dan Capaian Suhu Optimal Ruangan Prototype Trainer Lemari Pendingin Darmawan, Gede; Wiratmaja, I Gede; Elisa, Edi
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 1 (2021): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i1.12290

Abstract

This study aims to find the effect of variations in the capillary tube winding on the suction line on achieving optimal temperature and room cooling rate. This study uses three variations: the capillary tube without being wrapped around the suction line, the capillary tube wrapped in half on the suction line, and the capillary tube fully wound on the suction line. Specifically, the purpose of this study was to determine the effect of variations in the capillary tube wrapped around the suction line, which led to efforts to maintain the performance of the refrigerator trainer prototype. The method used in this study uses an experimental method where the data collection process is carried out through observation and documentation. The data analysis technique used in this study uses quantitative descriptive research techniques where the research data will be tabulated and displayed in the form of tables and graphs, and data analysis is carried out to find out how much influence the achievement of the optimal room temperature and the cooling rate of the prototype trainer refrigerator room itself. From the research that has been carried out, it is obtained that the highest optimal room temperature achievement occurs in the variation of the capillary tube fully wound on the suction line, where there is an increase in the optimal room temperature achievement of 16.17% when compared to the room cooling rate using standard variations or without being wrapped. And the result in the form of the highest room cooling rate is the variation of the capillary pipe fully wound on the suction line.
Analisis Unjuk Kerja Prototype Trainer Lemari Pendingin dengan Variasi Beban Pendinginan Arifudin, Andi; Wiratmaja, I Gede; Pasek Nugraha, I Nyoman
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 1 (2021): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i1.12225

Abstract

This study aimed to find the effect of variations in cooling load on the performance of the prototype trainer refrigerator, which in this refrigerator prototype had never been tested performance. In this study, the experimental method was used. The values sought in this study were the rate of room cooling and the Coefficient of Performance (COP). In this study, the variation of the cooling load used started from temperatures of 300, 350, 400, 450 oC, with 15 repetitions, and the temperature performance used was 1000C. The study results showed that the highest room cooling rate occurred at 300 oC cooling load variation, namely 0.00265, and the smallest room cooling rate occurred at 450 oC cooling load variation, namely 0.00174. The highest Coefficient of Performance (COP) results occurred at a cooling load variation of 450 oC, namely 34.09, and the lowest Coefficient of Performance (COP) occurred at a cooling load variation of 300 oC, namely 29.60. From these results, it can be concluded that the cooling rate of the room was inversely proportional to the increase in cooling load because the more significant the cooling load, the longer the time obtained, resulting in a small room cooling rate. And for the results of the Coefficient of Performance (COP), it was directly proportional to the increase in the cooling load because the more significant the cooling load given, the higher the temperature at T1 and T2, resulting in a significant Coefficient of Performance (COP).
Pengaruh Variasi Insulator Saluran Chilled Water Terhadap Performansi Prototype Mini Water Chiller Buddhi Satya Utama; I Nyoman Pasek Nugraha; I Gede Wiratmaja
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 1 (2021): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i1.12264

Abstract

The high heat transfer rate from the environment to the chilled water pipe will affect the performance of the mini water chiller prototype, so it is necessary to insulate the chilled water pipe using the right insulator to optimize the performance of the mini water chiller prototype. Therefore, this study aims to determine the effect of the chilled water pipe insulator variations: nitrile rubber expanded and polyurethane foam on the optimal temperature and cooling rate of the mini water chiller prototype cabin. The method used in this study is an experimental method with a variation of the insulator as independent variables and the optimal temperature also cooling rate of the mini water chiller prototype cabin as the dependent variables. The testing process was carried out 20 times repetition of data collection on each variation using a stopwatch, thermo gun, thermostat, ampere pliers, a bulb, and a water heating element as a tool in research. In addition, it expanded nitrile rubber and polyurethane foam spray as research material. The results obtained from this study showed that the average optimal temperature achievement of the mini water chiller prototype with polyurethane foam insulator was 11.242◦C, and with the nitrile rubber expanded insulator was 11.250◦C. Otherwise, the average cooling rate of the mini water chiller prototype cabin with polyurethane foam insulator variation was 0.001421◦C, while in the variation of nitrile rubber expanded it was 0.001032◦C, which indicates that there is an effect of chilled water pipe insulator variations on the performance of the mini water chiller prototype.
Studi Literatur: Pengembangan Biogasoline dengan Pemanfaatan Arak Bali Sebagai Bahan Bakar Kendaraan Ramah Lingkungan Komang Purnayasa; Ngurah Putu Putra Adnyana; I Gede Wiratmaja
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 2 (2022): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i2.13402

Abstract

The use of biogasoline from Bali wine as a fuel additive in gasoline from fossil energy sources gets a lot of severe problems, especially to make biogasoline products as an alternative fuel that is able to stand alone as the main fuel in Indonesia in the future. This article is in the making based on the results of literature studies by conducting an analysis process on various sources of pre-existing articles. This literature study is processed in various ways such as reviewing the results of previous research on the use of Balinese wine as one of the energy-friendly fossil fuel substitutes. From this literature study obtained the advantages of an engine working umjuk, namely the use of biogasoline from Balinese wine to variations in compression ratio the greater the acceleration produced is also increasing which makes the combustion of the table better, and also the use of fuel becomes more efficient. The use of biogasoline fuel additives from Bali wine against exhaust emissions in the form of carbon monoxide (CO) and carbon dioxide (CO₂) gases decreased. Then in terms of raw materials, it is feared that there is competition between the availability of food raw materials (the manufacture of brown sugar and ant sugar). One solution so that ethanol from Balinese wine in pure biogasoline that can be used as fuel is with adsorbed type treatment and immersion time and interaction are very influential on the quality of biogasoline concentration and percentage value increase in biogasoline concentration when in the dehydration process.
Analisis Penambahan Zat Aditif pada Bio Solar terhadap Opasitas Kendaraan Bermesin Diesel Hafid Ramadhan; Edi Elisa; I Gede Wiratmaja
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 3, No 2 (2022): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v3i2.13531

Abstract

This study aims to find out the effect of mixing biodiesel and additives with various kinds of mixtures on the exhaust gas opacity of a 4-stroke diesel engine. In this study, two variations of the ratio of the mixture of bio-diesel and additives were used, namely bio-diesel with a mixture ratio of 2.5%: 97.5% and a mixture ratio of 1.25%: 98.75% for additives and bio-diesel. The method used in this study uses an experimental method where the data collection process is carried out through observation and documentation. Data collection was carried out 5 times a repetition using the Opacity Smoke Meter tool. From the results of the study, the variation of the mixture of 2.5%: 97.5% resulted in the lowest average exhaust gas opacity value, where there was a decrease in exhaust gas opacity by 20.8% compared to standard conditions (without the addition of additives). From the results of this study, it can be concluded that there is an impact of adding additives to biodiesel on exhaust gas opacity where the more additives added to biodiesel will further reduce exhaust gas opacity in vehicles with diesel engines.
Co-Authors Alfian, Handi Ardika Yasa, Gede Dyo ari pradnyana, suta Ariantika, Kadek Arifudin, Andi Arnawa, I Komang Gede Artha, Edy Agus Juny Arya Wiguna, I putu A’an Adji Ahmad Sya’bani Batistuta, Andreas Buddhi Satya Utama Budiastawan, Ngurah Putu Darmawan, Gede Dharmawan, I Made jati Elisa, Edi Gede Widayana Gede Widayana Hafid Ramadhan I Gede Ari Saputra I Gede Made Aditya Tresnajaya I Gusti Bagus Wijaya Kusuma I Nyoman Pasek Nugraha I Nyoman Suprapta Winaya I Putu Arya Wiguna I Wayan Wismantarayasa Kadek Rihendra Dantes Komang Adhi Indrawan Saputra Komang Purnayasa Komang Purnayasa Kusumayani, Ni Made Novia Made Agus Suardana Pinatih Mahayoga, I Kadek Alit Mahendra , Putu Gede Widhi Mardhotillah, Bunga Muhammad Khoirul Makhbub Ngurah Putu Putra Adnyana Nyoman Arya Wigraha Pranata, I Wayan Dwi Eka Purnayasa, Komang Putra, Anak Agung Gede Windhu Gandhi Ryan Pratama Putra, Ryan Pratama Saputra, Komang Adhi Indrawan Wayan Wismantarayasa, I Widiadnyana, I Wayan Bayu Wiguna, I Putu Arya Wijaya, Hardian Putra Wismantarayasa, I Wayan Zurweni Zurweni