cover
Contact Name
A Sumarudin
Contact Email
shumaru@polindra.ac.id
Phone
-
Journal Mail Official
jtt@polindra.ac.id
Editorial Address
-
Location
Kab. indramayu,
Jawa barat
INDONESIA
JTT (Jurnal Teknologi Terapan)
ISSN : 24773506     EISSN : 25491938     DOI : -
Core Subject : Science,
JTT memuat naskah hasil-hasil penelitian di bidang teknologi terapan.
Arjuna Subject : -
Articles 171 Documents
COVER JTT VOL 4 NO 1 Vol 4 No 1, JTT
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v4i1.107

Abstract

Cover JTT Vol 4 No 1
EFEK GETARAN PADA PENGELASAN ALUMINUM 5083 H112 MENGGUNAKAN PROSES LAS GAS METAL ARC WELDING (GMAW) TERHADAP POROSITAS Rohmat, Imam Khoirul; Winarto, Winarto
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v4i2.126

Abstract

5083 series aluminum magnesium is widely used for marine industrial. It is caused aluminum has high specific strength and good corrosion resistance. However, at process of welding many of porosity occured in the aluminum and it decrease the mechanical properties especially in HAZ (Heat Affected Zone). At casting process of aluminum, porosity could reduce by giving vibration. So, this method is tried to be applicated for welding of aluminum due to welding is a miniature of casting. Tensile test, hardness test, metallography test, and image analysis are technique to characterize the effect. As a result, vibration is not really affected the amount of porosity that occurred. But for hardness it is influenced especially for ER 4043 filler where the vibrated specimens have a higher hardness. The higher average result of tensile test for ER 5356 filler obtained at unvibrated specimens with the value is 231 MPa and for ER 4043 filler the higher average result obtained at vibrated specimen, the value is 226 MPa.
PENGARUH DYMETIL ESTER PADA BIOSOLAR TERHADAP UNJUK KERJA MOTOR DIESEL SATU SILINDER PADA SUHU PEMANASAN BAHAN BAKAR 95 OC Rohmat, Yusup Nur; Kusnandar, Kusnandar; Saputro, Rizki Adila
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v4i1.94

Abstract

The depletion of petroleum reserves makes the emergence of a variety of alternative energy, one of which is Biodiesel. Biodiesel is a fatty acid ester derived from vegetable oil or animal by transesterification or esterification reaction. The purpose of this study was conducted to determine the effect of the use of fuel mixture of biodiesel jelantah with heating 950C to power, torque and Sfc. The test is done by loading the lamp load from 200 - 3200 watt on variation of biodiesel fuel volume by 30%, 40% and 50%. The research method used is descriptive analysis where the result of research is described and described based on research result. From the test results resulted in the addition of biodiesel jelantah fuel effect on power, torque and Sfc generated diesel motor.
ANALISIS PERBEDAAN TEKANAN FLUIDA PADA BALL VALVE KONDISI FULL CLOSED DAN FULL OPEN DENGAN COMPUTATIONAL FLUID DYNAMICS Rahmi, Meri; Canra, Delffika; Suliono, Suliono
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v4i1.83

Abstract

Ball valve is one type of rotary motion valve. Ball valve functions as a round disc-shaped ball-like controller. Ball valve is widely used because it is easy to repair and the ability in high pressure and high temperature. The fluid flow in the ball valve does not always flow, sometimes the flow is closed. This will affect the fluid pressure in the valve. Fluid pressure is also affected due to valve open condition. This study aims to analyze the difference of the fluid pressure in ball valve -4 inch ANSI during closed condition and open condition. The method used is Computational Fluid Dynamics with f Flow Simulation Solidworks software. The analysis was performed for two valve conditions with a temperature of 425 °C. Decrease in pressure does not significantly affect the condition of the ball valve, even when the temperature of the fluid is high. The difference of fluid pressure between full closed condition and full open is only 0.01 psi.
ANALISA UJI KEKERASAN DAN UJI TARIK MATERIAL AISI P20 MOD. HASIL PERLAKUKAN HARDENING DAN TEMPERING Kusnowo, Roni
Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v1i1.30

Abstract

Penelitian ini bertujuan untuk menganalisis uji kekerasan dan uji tarik pada material AISI P20 Mod. setelah melalui proses hardening dan tempering pada suhu yang berbeda-beda. Hardening adalah proses perlakuan panas yang diterapkan untuk menghasilkan benda kerja yang keras. Proses tempering bertujuan untuk memperoleh kombinasi antara kekuatan, keuletan dan ketangguhan yang tinggi. Material AISI P20 Mod. sebagai material substitusi impor yang diproduksi melalui proses continuous casting dimana dalam proses pembuatannya memerlukan proses rol (rolling) dan proses tempa (forging). Material ini mempunyai sifat dan karakteristik khusus, diantaranya tahan terhadap temperatur tinggi, tahan terhadap abrasi, dan mempunyai mampu mesin yang baik. Hasil penelitian menunjukkan uji kekerasan pada proses hardening mencapai nilai kekerasan 53,7 HRC. Selanjutnya dilakukan proses tempering pada suhu 200C hasil menunjukkan nilai kekerasan sedikit meningkat menjadi 54 HRC, sedangkan pada temperatur 400C terjadi penurunan nilai kekerasan menjadi 47,4 HRC. Baru setelah dilakukan tempering pada suhu 600C hasil uji kekerasan menunjukkan masuk target kekerasan yang diinginkan yaitu pada 34 HRC. Hasil uji tarik menunjukkan pada kondisi awal benda, hasil uji tarik adalah 655N/mm2. Kekuatan tarik hasil proses hardening sebesar 1244 N/mm2. Setelah dilakukan proses tempering 2000C dihasilkan kekuatan tarik 1515.8 N/mm2. Pada proses tempering 4000C, terjadi penurunan nilai kekuatan tarik menjadi 1397.9 N/mm2. Selanjutnya pada proses tempering 6000C nilai kekuatan tarik menjadi 1077.7 N/mm2, mendekati target kekuatan tarik yaitu 1020 N/mm2.
PENERAPAN SISTEM INFORMASI AKADEMIK (SIA) SEBAGAI UPAYA PENINGKATAN EFEKTIFITAS DAN EFISIENSI PENGELOLAAN AKADEMIK SEKOLAH Purwanto, Riyadi
Jurnal Teknologi Terapan Vol 3, No 2 (2017): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v3i2.58

Abstract

Information Technology has provided an important role as a medium of information and communication in the field of education, one of them in School Academic Management. Implementation of Academic Information System as one way to increase effectiveness and efficiency of academic management include new student enrollment, student and teacher data management, management of lesson schedule, and student value processing. Academic Information System developed as an information service in the form of data related to academic data. In the development of Academic Information System, the methodology that can be used is Waterfall methodology which consists of several stages, among others: 1)Planing stage that is discussing the planning of the system to be developed, 2)Stage Analysis is to analyze the running system and the analysis of functional and non functional needs, 3)Design stage that is designing and designing system, and 4)Implementation Phase that is production of application and testing.The results showed that Academic Information System can improve the effectiveness and Efficiency of School Academic Management. In terms of effectiveness, academic information system can be used to improve communication and organize academic data accurately and accurately, while in terms of efficiency, academic information system can accelerate the academic management process, reduce operational costs (low cost and paper less) and reduce human error in processing student value
RANCANG BANGUN SISTEM PENGEREMAN OTOMATIS MENGGUNAKAN ARDUINO UNO DAN SENSOR ULTRASONIK Alam, Syah; Maulana, Gusti Alga
Jurnal Teknologi Terapan Vol 6, No 1 (2020): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v6i1.241

Abstract

Penelitian ini mengusulkan  rancang bangun purwarupa mobil dengan sistem pengereman otomatis. Metode yang digunakan adalah menghentikan putaran roda secara bertahap dimulai dari jarak 50 cm sampai 30 cm untuk berhenti total menggunakan mikrokontroller arduino uno yang dikoneksikan dengan m?t?r dr?ver L298 dan sensor ultrasonik HC-SR04 sebagai pendeteksi halangan. Dari hasil penelitian yang telah dilakukan telah berhasil dirancang sebuah prototipe mobil degan sistem pengereman sistem otomatis dengan nilai rata rata jarak berhenti terbaik di 28.75 cm dari target 30 cm untuk waktu settingan delay 200 ms. Prototipe yang dirancang memiliki nilai rata-rata kesalahan 4.17 % dan dengan tingkat kekauratan 95.83 %. Hal ini menunjukkan bahwa prototipe yang dirancang sudah layak diterapkan sebagai system pengereman otomatis.
AUGMENTED REALITY PENUNJUK ARAH JALAN Caferina, Monica; Sumarudin, A
Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v1i1.36

Abstract

Augmented reality adalah teknologi dengan konsep menggabungkan dimensi dunia nyata dengan dimensi dunia maya yang ditampilkan secara realtime. Augmented Reality tidak seperti realitas mayayang sepenuhnya menggantikan apa yang ada di dunia nyata, namun hanya sekedar menambahkan atau melengkapi. Hal ini dilakukan dengan cara menggambar obyek tiga dimensi pada marker, yakni sebuah pola yang bersifat unik dan dapat dikenali oleh aplikasinya. Smartphone memungkinkan pengembangan aplikasi Augmented Realitydengan mudah serta dapat diakses oleh banyak pengguna. Augmented Reality dapat dimanfaatkan dalam berbagai bidang salah satunya adalah sebagai sarana penunjuk arah jalan untuk mempermudah pengguna jalan. Augmented Reality dapat digunakan untuk menciptakan sebuah lingkungan yang lebih interaktif dimana pengguna dapat berinteraksi langsung dengan obyek dunia maya. Pada tugas akhir ini, mengembangkan sebuah aplikasi Augmented Reality yang ditujukan kepada para pengguna jalan sebagai alat penunjuk arah jalan. Aplikasi ini dibuat dengan Vuforia SDK sebagai alat untuk mengembangkan Augmented Reality dengan C# (C sharp) berbasis Android. Aplikasi Augmented Reality penunjuk arah jalan dapat membaca marker pada petunjuk jalan yang ada pada daerah Bundaran Mangga dan Bundaran Kijang Indramayu, yang akan menampilkan model 3 dimensi di layar perangkat Android dan menampilkan informasi arah jalan berupa linking ke Google Maps.
PENGARUH PEMASANGAN KAPASITOR TERHADAP COP (COEFFICIENT OF PERFORMANCE) AIR CONDITIONING Anwar Syahputra, Syofyan; Mustakim, Mustakim
Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v2i1.24

Abstract

Non linear load harmonics cause, Air Conditioning is one of the main types of inverters that generate non linear load harmonics. Harmonics on the Air Conditioning so that the reduction must not interfere with the quality of power on the system and network. The ability of an Air Conditioning unit to cool a room can be known as Coefficient Of Performance (COP). This can be seen from the comparison between the heat energy required to cool the room with the electric energy used on the unit. In this case you will know the impact caused by the reduction of the harmonics of the COP. Reduction of harmonics used in this study using 16 F capacitor which also serves as a power factor improvement. The results obtained after using the capacitor found impairment harmonic currents (IHDi). After the measurement of the COP also increased from 2,740 becomes 3,176. This proves that the capacitor also function besides improving the power factor can reduce the harmonics an improve the COP.
KAJIAN KENYAMANAN RUANG KULIAH TN II JURUSAN TEKNIK FISIKA UNIVERSITAS GADJAH MADA (UGM) DITINJAU DARI ASPEK TERMAL DAN POLA ALIRAN UDARA MENGGUNAKAN FLUENT Sunanto, Sunanto; Karsid, Karsid
Jurnal Teknologi Terapan Vol 2, No 2 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v2i2.19

Abstract

Temperature and air circulation is an important factor in a building since it is closely related to health comfort. Therefore, the design of a building should be carry out precisely in getting a clean, healthy and comfortable air circulation in accordance to the requirement of the room.In order to carried out a good building designing, a research was needed to understand temperature distribution, the pattern of air flow and its velocity. In this research, a Classroom of TN II JTF UGM. This classroom have 1030 cm length, 790 cm of width, and 330 cm of height. The size of the windows is 100 x 100 cm and place 1m from the floor. The size of the doors is 140 x 210 cm. The windows are assumed to be widely open, the door always opened. The researched begins with geometric modeling of the model by using Gambit 2.2.30 and continued with model testing using Fluent 6.2.16. The test is carried out by giving three velocity variation of free air flowing i.e.: from 1.3 m/s, 3.61 m/s and 5.92 m/s, two direction variation of open air flowing and two variation temperature of free air i.e.: 21.50C and 27.650C.The standard of comfortable air velocity used in the room is 0.15 < V < 0.25 m/s, The standard of comfortable temperature used in the room is 20.50C and 27.10C. The air velocity and air temperature variation created comfort area and non comfort area in the room .The direction circulation of air variation created the different pattern air circulation in the room.

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