cover
Contact Name
Mirza Yusuf
Contact Email
jqt@umy.ac.id
Phone
+6289674708638
Journal Mail Official
jqt@umy.ac.id
Editorial Address
Redaksi Quantum Teknika, Gedung D Lantai Dasar Kampus Terpadu Universitas Muhammadiyah Yogyakarta, Jl. Brawijaya, Tamantirto, Kasihan, Bantul, DI Yogyakarta, 55183
Location
Kab. bantul,
Daerah istimewa yogyakarta
INDONESIA
Quantum Teknika : Jurnal Teknik Mesin Terapan
ISSN : -     EISSN : 27211932     DOI : 10.18196
Core Subject : Engineering,
Quantum Teknika : Jurnal Teknik Mesin Terapan or Quantum Teknika is a peer-reviewed journal published by Universitas Muhammadiyah Yogyakarta. Quantum Teknika journal publishes twice a year in April and October. Mechanical engineering is a branch of engineering focusing on mechanical engineering research. Despite of that, the development of the mechanical engineering does not solely encompass machinery science but also other machine-related field such as the automotive science which is composed of energy conversion, design and the forming materials. Quantum Teknika journal accommodates these fields in order to spark various innovations in Indonesia. In the journal Quantum Teknika, accommodate these fields in this period, the year of innovation began in Indonesia. - Automotive Research - Research in The Field of Energy Conversion - Materials Engineering - Design and Manufacture
Articles 14 Documents
KARAKTERISASI BAHAN KAMPAS REM SEPEDA MOTOR DARI KOMPOSIT SERBUK KAYU JATI Yudhanto, Ferriawan; Dhewanto, Santo Ajie; Yakti, Suluh Widya
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 1 (2019): Oktober
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010104

Abstract

Commonly the prime material for brake pad of the commercial motorcycle using asbestos, these materials cause a disease like as cancer of respiration if the abrasive particles were sniffed. The SKJ (Serbuk Kayu Jati) brake pad is alternative to replacement the asbestos brake pads. The mechanical test includes a wear test, hardeness test, friction coefficient test, and heat resistant test. The hot press process for SKJ as main material of brake pad based by variation of temperature there are 160ºC, 170ºC, and 180ºC. The optimum test result of SKJ brake pads is a variation of 180ºC with wear test result is 3,36 x 10-7 mm2/kg, the hardeness result is 25,1 BHN, the friction coefficient test is 0,59 and not damaged on the heat resistant test with a temperature of 300ºC during an hour.
PENGOLAHAN LIMBAH CAIR TAHU MENJADI BIOGAS MENGGUNAKAN REAKTOR BIOGAS PORTABEL Rajagukguk, Kardo
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 2 (2020): April
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010210

Abstract

From the tofu production process. The waste generated by tofu industries can be divided into two types, i.e the solid waste and liquid waste. One effort to reduce the environmental damage due to tofu liquid waste from the processing of tofu is to make the tofu liquid waste into biogas. The effort to convert liquid waste from tofu factories into biogas reguires a biogas reactor.  The aim of this study was to design a biogas reactor with a size of 1 m3 (1000 Liters) by using materials and equipment that are very easily available in the market at an affordable price, to determine the pressure, pH value and the quality of the flame produced when the biogas is used as fuel gas stove. The method used in this study is an experimental method within 30 days. The results showed that biogas pressure increased with increasing time (days). Maximum pressure is reached on day 21, which is 12.2 kPa. The average pH value is 6.91. The temperature in the biogas reactor tends to be stable with an average temperature of 31oC. The color of the flame when the biogas from tofu liquid waste is used as a gas fuel for a large flame gas stove is still a mixture of blue and yellow. The utilization of tofu liquid waste into biogas is expected to reduce environmental pollution and make tofu liquid waste become a high economic value and environmentally friendly.
PENGARUH FILLER PADA PENGELASAN TIG BAJA KARBON DAN STAINLESS STEEL 316L TERHADAP SIFAT MEKANIK Nurisna, Zuhri; Setiawan, Estu
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 2 (2020): April
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010214

Abstract

In the manufacturing industry, the integration of different types of material is needed. The dissimilar metal welding of two different material were required suitable filler types. The often combination of material was done is welding between steel and stainless steel. TIG (Tungsten Inert Gas) welding process used feed electrode an electric arc. The gas around welding area has been protected the molten metal with outside air. This study aimed to determine the effect of selecting a suitable filler on the joining dissimilar metal beetwen SS316L  and low carbon steel with the TIG welding method. The mechanical characteristics of ER316L and ER70S filler variations were testing by Tensile strength and microhardness vickers.  The highest tensile strength and hardness value were found in the specimen welded by ER70S filler at  410 MPa and 398,1 HVN (Hardness Vickers Number). According to the study results, the ER70S filler is more suitable beetwen welding on the stainless steel and low carbon steel.
PERBAIKAN TEKNIK RELINING TANUR INDUKSI UNTUK MENCEGAH TERBENTUKNYA RONGGA LINING DAN PENGHEMATAN BIAYA PROSES PELEBURAN Tridaryanto, Anto; Sutoyo, Sutoyo; Hidayat, Mansur
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 2 (2020): April
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010211

Abstract

The lining is coil?s protector componen and metal liquid reservoir, the lining is required to own endurance towards chemical reaction and high temperature emitted by the smelting process. The lining commonly problem on the lining damage (cavity) after the sintering process. This damage cause the smelting process force-stopped, due to endangering the induction furnace operator and the surrounding. According to the analysis result, the lining damage occured because of the improper pulverization and sintering process with the casting term. The uncontinued comprssion process and the improper sintering with the used fireproof material, cause the lining can not maximally functioned. The upcoming refinement will apply proper compression process according to metal casting theories and economically anallyzed.
KARAKTERISTIK REFRIGERAN MUSICOOL DALAM MESIN REFRIGERASI KOMPRESI UAP MENGGUNAKAN EVAPORATOR GANDA Purnomo, Bagiyo Condro; Widodo, Noto; Munahar, Suroto; Nugroho, Dimas
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 2 (2020): April
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010208

Abstract

Musicool is an alternative refrigerant developed as a working fluid in a steam compression refrigeration system. Musicool has many advantages compared to conventional refrigerants, the advantage is that it is environmentally friendly. This study aims to determine the characteristics of musicool 134 on a steam compression refrigeration machine using a double evaporator. The test is done by comparing the characteristics of a single evaporator refrigeration machine and a double evaporator using musicool 134. The research variable is the air flow through the evaporator that is equal to 0.022 kg / s, 0.027 kg / s, 0.033 kg / s. The test data is taken by measuring the temperature and pressure of each component in the refrigeration machine, then using the P-h diagram musicool 134, to determine the performance of the refrigeration machine. The results of the study provide information that the use of a double evaporator will give rise to an improved refrigeration system performance compared to using a single evaporator.
PENGARUH TEKANAN KOMPRESI TERHADAP DAYA DAN TORSI PADA ENGINE SINGLE PISTON Purnomo, Bagiyo Condro; Munahar, Suroto
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 1 (2019): Oktober
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010103

Abstract

LPG is an alternative fuel as fuel oil (BBM) which has a higher octane and energy value compared to BBM, and produces lower exhaust emissions. However, engine performance has decreased. This research presents an analysis of the performance of a single piston 4-stroke LPG engine with changes in compression pressure. Tests were carried out to determine the power and torque with variable pressure compression of  9 bar, 9.5 bar and 10 bar. The test results show that a single piston 4-stroke LPG engine with 9 Bar compression pressure produces a maximum torque of  9.77 Nm at 3380 rpm and a maximum power of 6.7 HP at 5870 rpm. Whereas the 10 Bar compression pressure produces a maximum torque value of 10.79 Nm at 3689 rpm and a maximum power of 6.9 hp at 5936 rpm. The conclusion of this research is that the higher the engine compression pressure, the higher the thermal efficiency in the combustion chamber so that engine performance increases
PENGARUH TEGANGAN PERMUKAAN TERHADAP TUMBUKAN MULTIPLE DROPLETS PADA PERMUKAAN STAINLES STEEL YANG DIPANASKAN Arizona, Rafil
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 1 (2019): Oktober
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010102

Abstract

The present study was conducted to investigate the dynamics of multiple droplets impact under various surface tensions. Here, the ethylene glycol with compositions of  0%, 5%, and 15% were injected through a nozzle into the stainless steel surface as the multiple droplets. The solid surface was heated at the temperatures of 150ºC. The dynamic of multiple droplets have been observed with frame rate of 2000 fps by a high speed camera. A technique of image processing was developed to determine the maximum droplets are spreading ratio. As the result, the surface tension contribute to the maximum spreading ratio significantly. When the droplet surface tension decreases, the maximum spreading ratio increases. The maximum spreading ratio appears when the percentage of the ethylene glycol is 15% at the temperature of 150ºC. From the visual observation, it was shown that a slower emergence of secondary droplets (droplet splashing) was carried out under low surface tension.
FABRIKASI LAPISAN NANO FLUORINE DOPED TIN OXIDE (FTO) DENGAN VARIASI TEMPERATURE MENGHASILKAN MATERIAL BERSIFAT TRANSPARAN DAN KONDUKTIF Yusuf, Mirza; Suciatno, Suciatno
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 2 (2020): April
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010213

Abstract

The process of forming a doped Tin oxide (FTO) nano fluoride layer was made using Tin Chloride (SNCL2) with Ammonium Fluoride (NH4F) mixing process using a magnetic stirrer at room temperature (28oC). The solvent liquid uses 99% ethanol. Both of these solutions are mixing and finally get the fluorinated doped fluorine Tin. The deposition method of the nanolayer uses the pyrolysis process to produce FTO substrates. This research focused on the production of materials that have transparent properties and have conductivity values. It based on the requirements of work solar cells to work. The process of measuring transparency uses an absorbance measurement tool. Measurement of conductivity using a conductivity meter with a 4-point circular Probe method used in this study was divided into four variations, including starting from 400, 425, 450, 475, 500 degrees Celsius. From this method, the best results were obtained at a temperature of 475 degrees Celsius with an average value of 25 ? / cm and the highest percentage of transmittance.
PERANCANGAN KURSI UNTUK MEMPERBAIKI POSISI KERJA GUNA MENINGKATKAN PRODUKTIVITAS STUDI KASUS DI PG JATIBARANG BREBES Sokhibi, Akh; Rachmawati, Putri
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 1 (2019): Oktober
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010107

Abstract

PG. Jatibarang Brebes is the first company directly under the BUMN (Badan Usaha Milik Negara)  company. this is company produces sugar of Central Java region which is under PTPN IX. There are six stages in the process of producing sugar, namely the milling stage, purification stage, evaporation stage, crystallization stage, the stage of rotation and finishing. The last activity is the packaging of sugar into the sack of 50 kg carried by the operator who sits on a sack with irregular heights. Seen from the aspect of ergonomic seating position is not very suitable because sugar packaging operators work in an uncomfortable position. Therefore, it is necessary to design seats for ergonomic sugar packaging operators. The method used to design this chair is with the concept of ergonomics. The required data include anthropometric data of operator body size, operator complaint during work, packaging process time during work. Then the data is processed to be applied to the design. The design is a prototype which will be measured and compared the output results in the conditions before and after the design was applied. The standard of production output was increased from 384,6 sacks/hour to 454.5 sacks/hour (18,17%) after the new design chair has been applied.
STUDI EKSPERIMENTAL PENGARUH PERBEDAAN SUDUT KEMIRINGAN TERHADAP TEMPERATUR ONSET TERMOAKUSTIK GENERATOR GELOMBANG BERDIRI Agistya Anugrah, Rinasa
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 1, No 1 (2019): Oktober
Publisher : Quantum Teknika : Jurnal Teknik Mesin Terapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.010101

Abstract

Thermoacoustic generator ia one of energy conversion device that change thermal energy to acoustic form energy. This device can get many beneficial of thermal energy which banned and not be used again from industry, devices of the hospitals, geothermal, and solar energy. The device consist or two type, standing wave and traveling wave. In the research used a standing wave thermoacoustic generator because of the cost is relatively cheaper and the construction is easy to set than traveling wave type. Onset temperature is one of the most important parameter in thermoacoustic generator to be researched. In that aplication, onset temperature can representated how many the performance of this device, if seen by input energy used the system of the thermoacustic generator. Decreasing onset temperature could make  decrease of thermal energy used to generator. Beside stack and resonator length, the other parameter that more important to research is tilted angles. In this researched would be done researched with variation of tilted angles -90º, 0º, dan 90º. It would be found the effective tilted angle used, the performance was presented by the least onset temperature. The result was the tilted angle decreased when the onset temperature decreased too. If seen by the input energy, the best performance of thermoacoustic generator is on 90o tilted angle.

Page 1 of 2 | Total Record : 14