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Published by Institut Sains dan Teknologi AKPRIND

ISSN : 19798415 EISSN : - DOI : -

Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS PETROGRAFI BATUGAMPING FORMASI SENTOLO SEBAGAI BATUAN RESERVOIR HIDROKARBON DAERAH KARANGSARI, KECAMATAN PENGASIH, KABUPATEN KULONPROGO Danis Agoes Wiloso; Khoirunnada -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The research area is located in Karangsari Area, Pengasih District, Kulon Progo Regency, Daerah Istimewa Yogyakarta. The purpose of this research is to know porosity and naming of limestone based on petrographic analysis. The method used to determine the porosity and naming of the limestone by analyzing the thin section of limestone and for naming it using Folk Classification (1959) and Dunham (1962). The results of data collection and processing of limestone slabs are observed at Location Observation 1 found Mudstone and Biosparit, at Location Observations 2-5 obtained Packstone and Biomicrite. Based on the petrographic appearance of the rock, the porosity belongs to the intergranular porosity of the pores located between the grains covered by the cement at Location Observation 1 with a 20% percentage of good porosity category, Location Observation 2 with a 20% percentage of good porosity category, Location Observation 3 with percentage 20% sufficient porosity category, Location Observation 4 with percentage 15% category porosity enough, Location Observation 5 with percentage 15% category porosity enough.

STUDI KARAKTERISTIK PEMBAKARAN MINYAK PIROLISIS PLASTIK MENGGUNAKAN STEAM-ATOMIZING BURNER Muhammad Sigit Cahyono; Ucik Ika Fenti Styana
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

One of the new and renewable energy resources is Plastic Pyrolysis Oil, that produced from pyrolysis process of plastic wastes. This oil could be utilized as energy source using steam-atomizing burner, which it burning characteristics dependent to air pressure that used in the burner. The objective of the research was to investigate the influence of air pressure on the burning characteristic of plastic pyrolysis oil using steam-atomizing burner. The raw material that used are dry LDPE wastes. First, it was heated in pyrolysis reactor using biomass combustion as energy source, produced pyrolsyis oil, noncondensable gases, and carbon black. The oil that produced is used as fuel for combustion in steam-atomizing burner, to know it burning characteristic, with variable air pressure on 1, 2, 3, 4, and 5 bar. The observation was made on fire temperature, the long of flame, and it efficiency, that showed by fuel consumption in burner and yield of plastic pyrolysis oil that produced. The experiment results showed that as the air pressure increased, all parameters were increased, that are fire temperature, the long of flame, fuel consumption in burner, and the yield of plastic pyrolysis oil that produced in the pyrolysis reactor.

PERBANDINGAN EFEKTIVITAS PENYERAPAN Pb DAN CO DI UDARA PADA TANAMAN ANGSANA (PTEROCARPUS INDICUS)DAN GLODOGAN TIANG (POLYALTHIA LONGIFERA) SEBAGAI UPAYA BIOFILTER UDARA Sri Hastutiningrum; Yuli Pratiwi; Jefriyadi Gurusinga
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Affandi Street is one of the main Street that uses plant in every road (green line) in an effort to reduce air pollution. Angsana and Glodogan Tiang plants have a role in reducing air pollution. The purpose of this study was (1) to compare the effectiveness of Lead absorption and Carbon Monoxide in the air between Angsana plant and Glodogan Tiang, (2) knowing the point of the highest contamination of the plants and (3) to know the leaf position which has the most effective absorption.The research was conducted on October 2017-February 2018. The method used was the lower and upper leaf sampling on Angsana and Glodogan Tiang at 3 points along Affandi Street that is, the point 1 intersection of Condong Catur, the 2nd point in front of Mirota Gejayan , and point 3 on Demangan market. Repeat sampling three times in one month, then the sample was tested using Atomic Absorbtion Spectrophotometer (AAS) and Spektrofotometer UV-Vis method at Balai Besar Teknik Kesehatan Yogyakarta, and data analysis using ANAVA and MANAVA method with SPSS application. The results showed that plants greatly affect the absorption of air pollutants in the Affandi Street, from the results it is known that the Glodogan Tiang plant is a better plant in absorbing Pb and CO with average absorbing 3.51189 mg/kg, while the average Angsana absorbs 3,38519 mg/kg. The highest point of pollution location is at location point 3, Demangan market. The more effective leaves position in absorbing Pb is the lower leaf plant and the more effective leaf position absorbs the CO that is the upper leaves of the plant.

EVALUASI KEMAMPUAN TRANSFORMATOR DAYA PADA GARDU INDUK 150 KV WATES Muhammad Suyanto; Ridwan Setyowibowo; Prasetyono Eko Pambudi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Increased population growth, economy and insfrastructure development, especially the construction of airports in Kulon Progo district indirectly impact on power availability. An Increase electric load in each year will affect the capacity of the power transformer at the 150 KV Wates substasion. With increasing electric load it will be the greater the electrical load borne by teh power transformator, so to prevent the occurence of overload, it is necesarry to eavaluate the power transformer capability by doing electric load prediction. In this reseacrh, the method used is trend analysis. For power transformer-I use exponential trend with MAPE value of 2,91% obtained estimate of load in year 2019 equal to 25,74 MVA where loading already exceed 80% While power transformer-II using the quadratic trend with MAPE of 1,19% obtained by the estimated load in 2025 of 52,29 MVA, after the addition of a special load plan, obtained load estimation in 2019 has reached 80%. So that in the year 2019 has been done addition of new power transformer, and in year 2024 can be done uprating on power transformer-I.

KENDALI KECEPATAN MOTOR PADA ROBOT DENGAN EMPAT RODA OMNI MENGGUNAKAN METODE PID Aryono Priyambudi; Beny Firman; Samuel Kristiyana
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In this research has been developed a system to conrol robot which have four wheel as a base for wheeled robot contest. The type of wheel is omni-wheel, they are shapeed with same distance each other. This system comonly have no stright movement and have no consistent aim-face of the robot in open loop control. The control system in this research use PID method to control the speed of each wheel. It use to make robot can move strightly and consistent of aim-face of the robot. The test on this system show that rotation speed of each wheel are equal to set point which set to PID control. With tune the paramater of PID with manual tuning method the system get 2.81% motor speed error. And get 0.66% error of aim-face of robot from forward and backward movement.

Jurnal Technoscientia vol 10 no 2 Februari 2018-Full Paper Jurnal Teknologi Technoscientia
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Jurnal Technoscientia vol 10 no 2 Februari 2018-Full Paper

Jurnal Technoscientia vol 10 no 2 Februari 2018-Cover-Redaksi-Daftar Isi Jurnal Teknologi Technoscientia
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Jurnal Technoscientia vol 10 no 2 Februari 2018-Cover-Redaksi-Daftar Isi

KARAKTERISASI MINERAL ZEOLIT KECAMATAN GEDANGSARI DAN SEKITARNYA, KABUPATEN GUNUNGKIDUL, DAERAH ISTIMEWA YOGYAKARTA Rinaldy Mesakh Kase
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Zeolite is a group of aluminosilicate mineral with several type of minerals as its member. Type of this zeolite mineral influenced the efficiency and effectiveness of its utilization. That thing also matter to group of zeolite mineral which is spread within Tegalrejo and the sorrounded area of Gedangsari Subdistrict, Gunungkidul Regency, Yogyakarta Special Region. Physical characterization of zeolite mineral including its physically appearance, crystalography and mineralogy. This physical characterization determined by several analysis including petrographic, XRD, and SEM analysis. Petrographic analysis done to understand texture and the group of mineral which is composed the sample, which is: tuffaceous mudstone, sandy tuff and tuffaceous sandstone. XRD and SEM analysis done to understand typical of mineral which composed the sample, in this case: mordenite and clinoptilolite type of zeolite; smectite; K-feldspar; plagioclase; and quartz. The result shows that type of zeolite minerals which occupied the sampling area were mordenite and clinoptilolite that distributed apportionment within the sample.

PREPARASI DAN KARAKTERISASI NANOPARTIKEL Fe3O4 MENGGUNAKAN METODE KOPRESIPITASI Ani Santi Lestari; Dewi Sartika
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Nanoparticles is a material or particle which nanometers size. It has done research making nanoparticles Fe3O4 with kopresipitation methods then characterization XRD and TEM to knowing the characteristic and particles size of sample. The result of characterization XRD detected by appearing the peaks difraction an angle of 30; 35,4; 43; 53,4; 56,9; and 62,5. The result of TEM characterization is 13,68 nm and 14,33 nm of particles size.

ANALISIS KEKUATAN MASSA BATUAN ANDESIT MENGGUNAKAN KAIDAH KRITERIA KERUNTUHAN HOEK-BROWN UNTUK MENGETAHUI NILAI FAKTOR KEAMANAN LERENG PADA DAERAH SELOHARJO, KECAMATAN PUNDONG, KABUPATEN BANTUL, DIY Nur Widi Astanto Agus Tri Heriyadi; Dina Tania
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 1 Agustus 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The study area has a steep hill morphology with dominant lithology of andesite lava from the Ngelanggran Formation. Steep morphology with water saturated conditions and platy joints on andesite lava as rock discontinuities with different properties and weathering can be weaking the slope stability. Analysis of the rock mass strength of andesite lava with Hoek-Brown collapse criteria using GSI, mi, uniaxial compressive strength, and D values can be used to obtain rock strength in the form of cohesion (c) and internal friction angle (ɸ), to be applied in the analysis of slope stability. The safety factor (FS) on the slope concists lithology and platy joints and massive using the equilibrium limits approach on the natural slopes shows on safe conditions (FK = 7.5). On very steep slope (slope angle 80o) in LP S09B location which is the former slope of mining activity with lithology andesit platy jointings have strong slopes, and in the field of rock mass movement shows the result of FK value = 1.3 which is below the PU standard (> 1.5). Slope reinforcement can be done by lowering slope angle up to 75o so that the safe conditions at FS = 2.4.

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