cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Muhammad Yusuf
Contact Email
snast@gmail.com
Phone
+6282282677899
Journal Mail Official
snast@akprind.ac.id
Editorial Address
Institut Sains & Teknologi AKPRIND Jl. Kalisahak 28 Kompleks Balapan Yogyakarta 55222
Location
Kota yogyakarta,
Daerah istimewa yogyakarta
INDONESIA
Prosiding SNAST
Published by Institut Sains dan Teknologi AKPRIND
ISSN : 1979911X     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
SNAST merupakan seminar nasional rutin yang diselenggarakan oleh IST AKPRIND Yogyakarta, sejak tahun 2008 dan diselenggarakan setiap 2 tahun sekali
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 200 Documents
 3   4   5   6   7 
PERANCANGAN DAN ANALISIS TRAILER RACK SEPEDA MOTOR PADA MOBIL DAIHATSU TAFT DENGAN BANTUAN SOFTWARE AUTODESK INVENTOR Adi Purwanto; Toto Rusianto
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Trailer rack is an additional device mounted on a four-wheeled vehicle to transport a motorcycle mounted on the rear of the car frame. In this design, the Daihatsu Taft off-road vehicle that attracted many outdoor sports fans was chosen as the subject of designing the bracket adapter for the trailer rack. The concept development in the trailer rack design comes from the technical specifications obtained through the Quality Function Deployment (QFD), which is a methodology used by designers to anticipate and determine the priorities of consumers 'needs and desires, as well as combining these consumers' needs and desires in products developed with consumer oriented. The design method, along with the stages in the process of designing the rack trailer in addition to using the QFD method, also refers to the guidelines of the German Engineer Association (Verein Deutsche Ingenieuer/VDI) at the analysis stage to obtain the desired technical specifications. Furthermore, the virtual 3D trailer rack model is made with Computer aids Drafting and Design software (CADD). The design and analysis of the design of the trailer rack focuses on the analysis process using ASTM A-36 material on the rack trailer frame with a motorcycle load weighing ≤ 200 kg. In the simulation of loading using Autodesk Inventor software, the values due to load include: Von misses stress of 107.3 MPa, 1st Principal Stress of 111.2 MPa, 3rd principal stress of -114.1 MPa, displacement of 0.13 mm, and a safety factor of 2.31 ul.
STUDI PENDAHULUAN ALTERASI DAN MINERALISASI DI DUSUN DAGEN, DESA GEMAHARJO, KECAMATAN TEGALOMBO, KABUPATEN PACITAN, PROVINSI JAWA TIMUR Danis Agoes Wiloso; R.Aditya Manggala Yudha
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dagen and vicinity have the potential of metal resources and epithermal mineralization systems characterized by the presence of alteration and quartz sulphide veins. The veins are formed as a result of the filling process on the fracture by a hydrothermal solution. Identification of vein characteristics needs to be studied in metal exploration to assist in the development of economical mineral exploration activities. The purpose of this study was to investigate the characteristics of quartz veins and to determine the vein distribution and zoning deposition of mineralization in the study area.The research was conducted in May 2018 located in Dagen Village, Gemaharjo Village, Tegalombo District, Pacitan Regency, East Java Province precisely located at coordinates between 536055 - 538104 mN and 9110712 - 9108008 mE with the research area is 3.58 km2. Sampling for analysis mineragrafi as much as 3 sample of quartz vein with selective sampling.The results showed vein texture in research area in the form of massive, banded, crustiform, comb, and cockade. The dominant vein texture contains a base metal and into the Crystalline Quartz (X) Super Zone. Mineragraphy analysis results from 3 quartz vein samples showed mineral content of chalcopyrite, sphalerite, tennantite, galena, covellite, native element Au and Ag. It proves that the research area is a place of accumulation of base metal minerals and little precious metals from the epithermal mineralization system.
STUDI EKSPERIMEN PERPINDAHAN PANAS KONVEKSI PAKSA EKSTERNAL PADA PLAT DATAR Rijalulakbar Dewantoro; Arrad Ghani Safitra; Lohdy Diana
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Heat transfer is divided into three, conduction, convection and radiation. Convection is the heat transfer due to bulk movement within fluids. Force convection that happen on the surface of the object is the case of heat transfer for external flow. Force convection declared by the value of convection coefficient (h).Convection coefficient its affected by geometry of the object, fluid velocity, and the value of heat flux. The research has been done by experiment using flat plate aluminum with length 0,275m, width 0,065m and height 0,008m. The goal of this experiment is to know the characteristic of external force convection on flat plate. The object is heated by electric heater under the object, then its cooled by the air from centrifugal blower. Variation of fluid velocity and heat flux was performed to the object. Data retrieval using thermistor (temperature sensor) that integrated with arduino, multimeter (voltage and current sensor), and anemometer (fluid velocity sensor). During experiment, the data taken are surface temperature and fluid velocity. From the experimental result obtained the best value of convection coefficient located on 0,005m, that is the variation fluid velocity 4,8 m/s the value is 275,4 W/m2K. This shows that the higher the fluid velocity will increase the value of the convection coefficient.
STUDI EKSPERIMEN PERPINDAHAN PANAS KONVEKSI PAKSA INTERNAL PADA SALURAN BENTUK SILINDER DAN PERSEGI Qurniawan Zen Al Faris; Arrad Ghani Safitra; Setyo Nugroho
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Forced convection inside a pipe is a case of convection mass transfer for internal flow. Main parameter of internal flow forced convection is a convection coefficient number (h). One of the ways to increasing the convection coefficient number is changing the cross section of the channel. But, there are some other factors that affect the convection coefficient number such as fluid velocity, surroundings temperature, and the number of heat flux. The study was conducted experimentally by making a channel from aluminum with cylinder and square cross section form. With 1.5 m length hydraulic diameter 0.0762 m, which aims to find out the characteristics of internal flow forced convection heat transfer. The channel surface is fully isolated to minimize the value of heat losses caused by the ambient temperature, so that the same thermal energy is obtained along the channel. Heating on the surface of the channel uses an electric heater with a capacity of 223.52 watts. Then the air fluid is channeled through the channel at a speed of 3.6 m / s and 5 m / s using an electric blower regulated by a valve. Testing is carried out in a room where the temperature is conditioned, taking temperature data using a temperature sensor (thermistor) within 25 cm of each sensor mounted on the surface of the channel wall. Data processing uses software engineering equation solver (EES) to improve the analysis of experimental results. From the analysis results obtained, the square channel convection coefficient number is greater than the cylinder form channel of 22,84; 22,77; 22,72; 22,7; 22,69; 22,72 W / m2K.
PENGEMBANGAN LAPANGAN GASIFIKASI BATUBARA DAN KARAKTERISTIK MIKROSKOPIS SEAM-A UPPER DAERAH BITAHAN, RANTAU, KAB.TAPIN, KALIMANTAN SELATAN Basuki Rahmad; Sugeng Raharjo; Eko Widi Pramudiohadi; Ediyanto _; Afif Dhiya‘uddin Pratama
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The research is located in Bitahan, Rantau, South Kalimantan Province. Geological setting of Idamanggala area located in Barito Basin included in Warukin Formation Early-Middle Miocene. Rantau’s coal has a low maturity (immature) with Random vitrinite reflectance from 0.42 to 0.56 Coal rank classification : sub-bituminous coal. The average composition of Rantau’s coal maceral for vitrinite maceral group is 85.57% (vol.). Vitrinite content is relatively high in coal of Rantau that included in kerogen type III as an identifier of humic organic matter and derived from the woody tissue of higher plants (angiosperm). The vitrinite is maceral forming high methane (gas prone). Average quality (proximate test) coal of Formation Warukin: Calories 5263-5822 kcal / kg (adb), sulfur 0,10-0,20% (adb); ash 2,77-7,29% (adb); inherent moisture 12,33-24,10 % (adb); volatile matter 37,76-45,46% (adb); fixed carbon 31,90-41,28 % (adb), Total Moisture 31,25-38,13 % (Ar); relative density 1,32-1,88. Coal gasification is the process of converting coal into synthesis gas. One of the gas produced is a flammable methane gas. The process of coal gasification can be done by drilling at 2 (two) drill holes toward the coal seam which is the target of gasification ie Seam-A Upper coal seam at depth more than 100 meter. The first drill to inject oxygen (O2) is pressurized like air or water, so it will burn in the Seam-A Upper coal layer, while the second drill serves as a production well to drain raw gas to the gasification reactor for binds CO2 and eventually methane gas (CH4) will be channeled to a power plant.
SELULOSA DARI IMBAH CANGKANG KEMIRI SEBAGAI BAHAN PENGENTAL ALAMI BAHAN BAKAR Rini Kartika Dewi; M. Istnaeny Hudha
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The gelling agent is a polymer component which is a combination of molecules that will give the desired thick and gel properties. The form of gel fuel can provide benefits in maintenance, is not dangerous, does not impact pollution and is practically handling. The source of thickener raw material that can potentially be derived from biomass. Because Inonesia is a country that is very rich in natural resources. In this study we tried to provide one biomass material that can be used as a thickening agent, namely cellulose from candlenut shell waste. In this study carried out by varying the mass of cellulose powder 1 shell candlenut waste; 2; 3; and 4 grams and 10 trichloroacetate concentrations; 15; 20 and 25%. Judging from the results of pH analysis, degree of substitution, viscosity, flame test and gas emission, the best mass of powdered candlenut thickener powder is found in the powder composition of 3 grams powder and the best trichloroacetate content at 15% level where the values ​​are based on powder mass and the best trichloroacetate content is the pH produced 8.4, with a substitution degree value of 0.29, a viscosity value of 1.43 cP, a flame test time of 4.19 minutes for ethanol gel combustion, with a value of CO gas emission 0.49 % ppm, the value of NOx gas emission produced is 0,0002% ppm, the value of gas emission of SO2 and gas H2S is 0% ppm.
KARAKTERISASI TEPUNG KULIT PISANG DAN UJI DAYA TERIMA TEPUNG KULIT PISANG PADA PEMBUATAN DONAT Titin Aryani; Isnin Aulia Ulfah Mu’awanah; Aji Bagus Widyantara
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Basically, all types of banana peel can be processed into flour, but the best is Raja Banana peel. This study aims to study the character of Raja banana peel flour and test of flour acceptance to the making of donuts. The research method used is quantitative analysis method. Flour characters studied are physical characters and chemical characters. This study also studied the acceptability of banana peel flour on donuts making. Data obtained from the results of laboratory analysis and donut power test results of 60 panelists. Physical character of the banana peel flour studied is the shape, smell, taste, color. Chemical characters studied are antioxidant activity, anthocyanin levels and carotene. The test of banana peel received in the making of donuts is flavor, color, texture and aroma. The results showed that the antioxidant activity of banana flour of Raja was 61.26%, the anthocyanin level was 15.62 mg / 100g, carotene content was 136.61 ppm. Banana flour test of Moses sapientum on making donut with 25% banana peel flour substituents on a scale of 1-5, taste parameter obtained value of 4.37, color 3.36, texture 3,54, aroma 3.68. The conclusion of this research is banana peel flour is relatively effective as substituent of banana peel flour on the making of donut with the amount of substituent as much as 25%. Suggestion of this research is done variation subtituen of Raja banana peel flour on making donut.
TRANSFORMASI SPASIAL KEPADATAN PENDUDUK DI KECAMATAN KRIAN KABUPATEN SIDOARJO Siti Nuurlaily Rukmana; Moch. Shofwan
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The phenomenon of urban transformation is related to the level of population density. This change in the level of population density is a manifestation of urban transformation. This phenomenon is also implemented in Sidoarjo Regency as an area located around the City of Surabaya. The purpose of this study is to assess and analyze the spatial transformation of population density in Sidoarjo Regency. This research approach uses Geographical Information System and Remote Sensing "as well as quantitative descriptive approaches. The analytical method used is to measure the level of population density with kernel density analysis. Based on the results of the analysis, it can be identified that changes in population density from 1995 to 2015 experienced changes in population density leading to the southern side of Krian District. The highest population density results are known that density occurs due to population mobility ranging from circulation and commutation which increases with the signification of dense settlements as well as significant industrial, trading, and service activities as work locations.
APLIKASI PEMANTAUAN BEBAN PUNCAK TRANSFORMATOR 150/20 KV PADA P3B UPT TANJUNG KARANG Muhammad Suyanto; P. Wisnubroto
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Aplikasi Pemantauan Beban Puncak Trasformator 150/20 KV Pada P3B UPT Tanjung Karang, sangat diperlukan karena perkembangan beban harus selalu terpantau secara kontinyu mengingat, pemeliharaan peralatan pada jaringan tenaga listrik sangat diperlukan untuk mempertahankan unjuk kerja peralatan saat beroperasi. Oleh karenanya apabila daya yang dibangkitkan lebih kecil, daripada beban listrik maka frekuesi dan tegangan akan turun begitu pula sebaliknya. Mutu listrik yang baik adalah apabila frekuensi dan tegangan tidak terlalu jauh menyimpang dari nilai nominalnya. Besarnya beban yang harus dilayani tidak konstan, melainkan selalu berubah-ubah sepanjang waktu, tergantung pada keperluan para konsumen pengguna energi listrik. Penelitian ini membangun suatu aplikasi pantauan naik dan turunnya beban listrik, setiap bulan berdasarkan data dimana Gardu Induk (GI) ditempatkan. Metode yang digunakan pada Peneltian ini adalah analisis trend dengan sample transformator 150/20KV pada GI Tragi Tegineneng UPT P3B Tanjung Karang berdasarkan data yang terpantau. Hasil analisis beban puncak periode tahun 2016-2018 diperkirakan mencapai 29,35MVA. Berdasar data pengukuran awal tahun 2013-2015 beban puncak rata-rata 18,77 MVA, mengingat kapasitas transformator II hanya 30MVA maka transformator segera ditambah kapasitasnya. Hasil penelitian ini diharapkan dapat memberikan kontribusi keilmuan khususnya dalam perancangan aplikasi pantauan beban puncak pada transformator, di GI Tegineneng UPT P3B Tanjung Karang, sehingga update data mudah dilakukan secara waktu nyata.
DESIGN OF L-BAND PYRAMIDAL HORN ANTENNA FOR ELECTRONIC SUPPORT MEASURE (ESM) Widi Anggun Fitriana; Budi Syihabuddin; Yuyu Wahyu; Heroe Wijanto
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Radar is a part of an electronic element that consists of electromagnetic waves to detect and determine the location of an object. The Electronic Support Measure (ESM) is part of electronic warfare to search for intercepting, identifying and locating radiated electromagnetic energy for the purpose of immediate threat recognition. It should be able to sense the working frequency of 1-12 GHz, including at L-Band which has 1 - 2 GHz bandwidth. The horn antenna has a relatively large gain so that the electromagnetic wave reception is more sensitive and accurate. It can be used as receiver antennas in ESM design. However, it is important to adjust the dimensions of the waveguide, the horn antenna and the monopole to obtain the appropriate antenna specification. This study tells about designing an L-Band horn pyramid antenna that can be applied to ESM. Antenna consists of rectangular waveguide, horn pyramid and monopole. The waveguide material and the pyramid horn made from 0.7 mm brass plates. While the monopole material is a 12 mm copper rod with length, placed 7 cm from the backside of the waveguide. Optimization results obtained 1.19 GHz bandwidth at L-Band, 13.74 dB gain, 1.26 VSWR , 18.87 dB Return Loss and unidirectional radiation pattern. These specifications comply the ESM antenna specifications.

Page 5 of 20 | Total Record : 200

 3   4   5   6   7 

Filter by Year

2012 2018


Reset
Filter By Issues
All Issue Prosiding SNAST 2018 Prosiding SNAST 2016 Prosiding SNAST 2012