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Irfan Aditya Dharma
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INDONESIA
Jurnal Teknoin
Published by Universitas Islam Indonesia
ISSN : 08538697     EISSN : 26556529     DOI : -
Core Subject : Engineering,
Engineering Mechanical Engineering
Teknoin memiliki komitmen untuk mempublikasikan topik-topik dalam bidang teknologi industri. Selain itu, dengan fitur jurnal open-access, diharapkan Teknoin dapat menjadi rujukan akademis tanpa batas baik untuk penelitian, pengajaran, maupun tujuan akademis lainnya.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 282 Documents
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PROSES PEMBUATAN SERBUK LOGAM DENGAN METODA ATOMISASI LAS OKSI-ASITILEN Muhammad Ridlwan; Alva Edy Tontowi
Teknoin Vol. 10 No. 4 (2005)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v10i4.104

Abstract

Atomization is the most common method for producing powders from metal. There are three atomization methods in powder fabrication : water atomization, gas atomization, and centrifugal atomization. Atomization was being developed to increase powder quality and process productivity. A new atomization method is possible to find by using another energy resources. Oxy-acetylene can be used as an energy resource in atomization. In this research, powders are made by oxy-acetylene atomization method. Material in wire form is melted in oxy-acetylene flame, which has operating temperature around 3480oC, and atomized to form a fine spray. The fine molten droplets rapidly solidify forming a powders. This research investigate the variation of wire diameter and flame gun attacking angle on atomization process efficiency and production rate. Wire material which used in this research is commercial steel wire with 0.75 mm; 1.25 mm; 1.50 mm in diameter. Flame gun attacking angle is varied 25o, 30o, 35o, 40o, and 45o.Result shows that oxy-acetylene atomization method can be used to produce metal powders. The characteristic of powders which produced by this atomization method have spherical shape, 75 m – 90 m in size, oxidized, and carburized. The efficiency and production rate of the atomization process are around 12.2% and 0.1429 gram/minute. This efficiency and production rate are influenced by wire diameter. Bigger wire diameter results higher efficiency, but lower production rate. For 1.25 mm diameter of commercial wire steel, an optimum efficiency of atomization process, 15.1%, are resulted by 30o of flame gun attacking angle.Keywords : powder fabrication, oxy-acetylene atomization method
PERANCANGAN DAN VALIDASI ALAT PENGUKURAN KONSTANTA DISOSIASI ASAM PADA SUHU 30-70°C Vitro Rahmat; Desi Kurniawan; Sholeh Ma’mun
Teknoin Vol. 22 No. 6 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss6.art8

Abstract

The greenhouse effect is caused by increasing emissions of greenhouse gases, e.g. carbon dioxide, in the atmosphere leading to the global warming problem. Thus necessary efforts to reduce the CO2 emissions are required, e.g. amine-based absorption method. Protonation constant is required for the VLE modeling needed in designing absorber and desorber column. For this purpose, an experimental setup was designed to measure alkanolamine protonation constants (pKa). However, the setup needs to be validated by measuring the protonation constants of acetic acid at a range of temperatures from 30 to 70°C. The validation results obtained were in good agreement with the literature data. For example, the pKa of the acetic acid at 30°C is 4.751 and this gives a deviation of 0.18% from the literature data.
Pembuatan Mesin Penyayat Kulit Hasil Samakan untuk Bahan Baku Sepatu Rofarsyam Rofarsyam; Adi Putra
Teknoin Vol. 10 No. 1 (2005)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v10i1.691

Abstract

Domestic market of shoes is increasing. Howewer this opportunity is yet to be grasped by domestic producers. Lack of quality is of identified obstacles of the domestic products which are mostly produced by household industries to compete in the market. An aspect of the quality is product’s appearance that is influenced by quality of raw material which is leather. Hence, this recent research aims to design machine that can be used to yield better quality leather. In each 8 hours the machine can produce ready-to-used leather for 100 pairs of shoes.Keywords: leather, shoes.
STUDY PENCAHAYAAN ALAMI PADA RUMAH LIMAS PANGGUNG PALEMBANG (Simulasi dengan Program Ecotect 5.0) Abdul Rachmad Zahrial Amin; Parulian Siregar; JM. Sri Narhadi
Teknoin Vol. 22 No. 9 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss9.art1

Abstract

Sunlight as the largest source of natural light is widely used by humans to carry out their daily activities. Natural light is efficient and saves energy because it does not use electricity. Sometimes humans as light users do not realize how huge the importance of natural light in performing everyday activities as visual comfort. In this study, simulations are conducted on  Limas Stilt Houses Palembang. This is due to Limas Stilt Houses has existed since Palembang Sultanate era. This study focuses on research related to the opening on the wall of the elements of these houses through the simulation of natural light. The method used in this research is descriptive analysis method based on engineering and architecture discipline of fields. From the simulation results obtained that the 'gegajah' space produced very little natural light ranges from 15-30 lux. This is due to gegajah space is located in the middle of the house and just rely on natural light from the 'bengkilas'  and 'pawon' rom. While 'bengkilas' and 'pawon' sufficient range of 300-325 lux natural light.
PEMILIHAN LOKASI BASE TRANSCEIVER STATION JARINGAN WIRELESS PITA LEBAR PADA INTERNET SERVICE PROVIDER (Studi Kasus : PT. Sarana Insan Muda Selaras Cabang Yogyakarta) Ari Subowo; Faisal RM; Agus Mansur
Teknoin Vol. 21 No. 1 (2015)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v21i1.3691

Abstract

Selection of the optimal location of a Base Transceiver Station (BTS) is a very important decision for Internet Service Provider (ISP), because it can increase the new market. In the process of development of BTS should consider some criteria to obtain the optimal location of the BTS as business criteria, technical criteria and support criteria. The location of this research was conducted at PT. SIMS Branch Yogyakarta. The process of analysis is combining GIS and AHP. GIS methods is used to process spatial data from alternatives location of BTS and AHP is used for the analysis of decision making. The use of this method is excellent in decision-making with many criteria. The both combination will complement each other's weaknesses. In the process of determining an alternate location, spatial data were analyzed using GIS methods to obtain the alternatives location can be used as a BTS sites, each alternative is ALT 1 at Moh. Yamin street, ALT 2 at Gatotkaca street, ALT 3 at Ringan Harjo street and ALT 4 at Diponegoro street, each of the sites are located in district of Bantul, Yogyakarta.  Then to determine the most optimal alternative of BTS sites can use AHP method. The results of process data using AHP show business criteria weights is 0.688; technical criteria weights is 0.238 and support criteria weights is 0.074. While the order of the selected alternative is ALT 4 has the highest value with the weight of 0.358; ALT 2 weights is 0319; ALT 1 weights is 0.213 and ALT 3 weights is 0.110.
PEMODELAN UNTUK MEMPREDIKSI DAYA SERAP BABY DIAPERS DARI NON WOVEN BOGSANG BERDASARKAN HASIL EKSPERIMEN Malichah Muhtarromah; Dantik Puspita Sari; Nurul Khadaryati; Ilma Fadhlia Furqanaa
Teknoin Vol. 21 No. 2 (2015)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v22i2.3702

Abstract

At this time it has been a lot of research on natural fibers were used as material for textiles. Therefore, the researchers wanted to generate natural material-based medical textile. The objectives and targets will be achieved from this research, is utilizing waste stem of banana post harvest into something more valuable as well as making modeling results done. The research results from this banana trunk fiber as material for the manufacture of baby diapers are environmentally friendly and have a high absorbent against water. This research was conducted with the experimental method to generate optimal achievement, namely by doing the processing post harvest banana stems. The first stage is looking for post harvest banana stems which are usually discarded. The next step is extracting stem of banana leaf into tow fiber, tow fiber processing became the staple through the process of relaxing, washing, cutting and opening. And the end result will be either web (non woven fiber) which will be in the laboratory test on humidity, power and fiber dimensions. Then make the modeling of laboratory test results. From the results of the experiment, the value will be in the predictions is the numeric data. This is usually made as a reference or basis for making the modeling that can predict. The prediction are more focus on the identification of trend of the distribution on the test data generated
RANCANG BANGUN ALAT MIXER VERTIKAL ADONAN KUE DONAT DENGAN GEARBOX TIPE BEVEL GEAR KAPASITAS 7 KILOGRAM Fadwah Maghfurah; Hendro Purwono; Windarta Windarta
Teknoin Vol. 22 No. 10 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss10.art7

Abstract

Making doughnut in a small-scale industry generally has a problem with inappropriate equipment and easy to be broken like using hand mixer. In its gearbox, the cylindrical worm gear usually made of plastic so that will easy to worn. With the use gearbox type bevel gear made of metal, then the mixer would able to overcome the problem of dough mixing where the gearbox of this type can overcome the large load with high rotation, so that the capacity of the mixer can be enlarged so that it will increase the results of work productivity. The design method begins with observation of the impact of performance, efficiency, needs and ergonomics and then proceed with the design concept of the tool design, calculation of the construction of the tool and its components and the last phase is testing of the tool by trial and error. Calculations were made to the components that will be assembling such as axis, pegs, bearings, bevel gear and its gear ratio, then the construction framework of the mixer and the container for the dough to be stirred. From the calculation results obtained from the capacity of the hand mixer with the use of 7 kg / hour, the bevel gear mixer can improve productivity results with a larger capacity of 18 kg / hour or increased by 225% compared to hand mixer capacity.
RANCANG BANGUN KENDALI SUHU DAN TEKANAN PADA EKSTRAKTOR SOXHLET TERINTEGRASI PEMBATAS WAKTU EKSTRAKSI MENGGUNAKAN MIKROKONTROLLER ATMEGA 16 Medilla Kusriyanto
Teknoin Vol. 19 No. 1 (2013)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v19i1.4408

Abstract

Extraction of compounds in a variety of materials, especially materials crops today are often found as a source of natural medicine. Soxhlet is one tool that is used as a medium of extraction of these compounds. Temperature and pressure as well as the long extraction affects the quality of compound extraction obtained. Control of temperature, pressure and time ekstraski kabanyakan still use manual so that there is an error caused by the user or device measuring. In this paper will be discussed extractor soxhlet integrated with the control system temperature, pressure and restrictions on timing extraction using a microcontroller ATMega 16 so that the extraction process can be run automatically. Control system temperature and pressure using a thermocouple type K which has a limit of measurement 0 - 12000C and pressure sensors MPX5700 which has a limit of measurement of the pressure of 0-700 Kpa. All output of this sensor will be read by the ADC microcontroller ATMega 16 is already integrated with internal ADC with a resolution of 10 Bit. Restrictions on the timing ekstraski done by using timer microcontroller
PURWARUPA SISTEM IDENTIFIKASI NYAMUK BERDASARKAN CITRA MIKROSKOPIS DIGITAL Izzati Muhimmah; Novyan Lusiyana; Rizky Eka Listanto; Ratri Agung Nugraheni
Teknoin Vol. 22 No. 11 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss11.art4

Abstract

The modeling of the proposed mosquito identification system is one of the efforts to support the efforts of the Indonesian people in handling zoonotic cases. The incidence of deaths caused by a disease that is naturally transmitted between animals and humans is still quite high. This group of zoonotic diseases include dengue hemorrhagic fever, leptospirosis, cikunguya, and so forth. In the stages of diagnosis, it is necessary to read and identify the type of vector that causes zoonotic disease through microscopic observation. This process is often not done because in this laboratory examination service is not available evenly at the clinic level. In addition, with various types of vectors that the number of variations is very much, needed a way to be able to recognize the vector easily and quickly. Therefore, the prototype of this mosquito identification system needs to be developed. The data used to test system modeling consists of digital microscopic images of mosquito preparations taken from the Parasitology Laboratory of the Faculty of Medicine, Islamic University of Indonesia. Lecturer coordinator of this Parasitology lab will serve as a resource in determining the characteristics of vector and also as a provider of ground truth in the testing phase of the system.
THE DETERMINATION OF VEGETABLE PRICING IN THE SUPERMARKET IN YOGYAKARTA Suci Miranda; Nur Aini Masruroh
Teknoin Vol. 22 No. 2 (2016)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol22.iss2.art4

Abstract

Penelitian ini menjelaskan faktor - faktor yang mempengaruhi penentuan harga sayuran di supermarket di Yogyakarta. Diketahui bahwa harga sayuran di supermarket merupakan penjumlahan dari harga sayuran supplier dan mark up dari harga supplier tersebut. Hasil penelitian menunjukkan bahwa harga supplier merupakan salah satu variabel yang berpengaruh secara langsung terhadap harga sayuran di supermarket. Faktor - faktor yang mempengaruhi besaran mark up merupakan data kualitatifberdasarkan hasil wawancara dengan supplier dan survery di supermarket: segmentasi konsumen, pengaruh harga pasar, pengaruh harga impor, dan packaging. Hasil PCA memberikan  informasi variabel penting  terhadap besaran mark up harga sayuran  yaitu Pengaruh Harga Pasar, Pengaruh Harga Impor, dan Packaging. Ketiga variabel ini berkorelasi tinggi baik terhadap mark up maupun harga sayuran di supermarket. Segmentasi Pasar tidak berkorelasi secara signifikan terhadap besaran mark up dan harga sayuran di supermarket. Terakhir, dengan menggunakan Partial Least Squares (PLS) dibangun model matematis penentuan harga sayuran di supermarket. Model 1 dengan 25 data dan Model 2 dengan 14 data sayuran. Y sebagai mark up, dan X adalah variabel Segmentasi Konsumen, Pengaruh Harga Pasar, Pengaruh Harga Impor, dan Packaging. Diberikan contoh perhitungan harga sayuran di supermarket menggunakan model yang dibangun.

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