Garuda - Garba Rujukan Digital

All

Jurnal Teknologi Terapan

jtt
Website

Published by Politeknik Negeri Indramayu

ISSN : 24773506 EISSN : 25491938 DOI : -

Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering

JTT memuat naskah hasil-hasil penelitian di bidang teknologi terapan.

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 292 Documents

5 6 7 8 9

Daftar Isi 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

Daftar Isi JTT Vol 4 No 1

ANALISIS KEKUATAN BALL VALVE AKIBAT TEKANAN FLUIDA MENGGUNAKAN FINITE ELEMENT ANALYSIS Rahmi, Meri; Canra, Delffika; Suliono, Suliono
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Valve (katup) sebagai salah satu produk industri, sangat dibutuhkan oleh perusahaan yang bergerak mengontrol aliran cairan untuk efisiensi. Kebutuhan tentang ini banyak digunakan oleh perusahaan makanan, obat-obatan, minuman, pembangkit listrik dan industri minyak dan gas. Tujuan penggunaan valve adalah untuk membatasi dan mengontrol cairan pada kondisi tekanan tinggi. Salah satu katup yang sering digunakan adalah ball valve, yaitu katup dengan tipe gerak memutar. Adanya permintaan ball valve ini, dibutuhkan produk dengan spesifikasi tertentu memiliki rancangan dengan tingkat kekuatan yang baik. Dengan kata lain, produk valve (katup) yang baik, harus memiliki kekuatan yang baik, aman dan sesuai dengan kebutuhan dilakukan pengujian. Penelitian ini bertujuan untuk melakukan analisis terhadap ball valve 4 inch ANSI 300 untuk memastikan katup yang diproduksi sesuai spesifikasi, kuat dan tahan terhadap tekanan fluida. Metode yang digunakan adalah Finite Element Analysis (FEA) dengan software Solidworks. Analisis dilakukan pada ball valve 4 inch ANSI 300 dengan keadaan full open, hall open dan full closed serta dengan pembebanan 725 psi dan 1087.5 psi hasil dari Computational Fluid Dynamics (CFD). Analisis dilakukan pada temperatur -29.50C, 250C dan 4250C. Berdasarkan hasil analisis dengan FEA, dinyatakan bahwa ball valve 4 inch ANSI 300 kuat dan aman untuk digunakan. Nilai faktor keamanan (safety factor), signifikan lebih tinggi dari nilai safety factor minimum yang diizinkan.

PENGGANTIAN ALAT PENDUKUNG REAKTOR ANAEROBIK DUA TAHAP GUNA MENINGKATKAN KUALITAS HASIL BIOGAS Ghozali, Mukhtar; Budiastuti, Herawati; Fitrianie, Alviera Wilma; Wahyuni, Elis Sri
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

BOD/COD ratio of leachate is 0.6 so it fulfils requirement for anaerobic treatment. Leachate is potentially to be treated, however leachate is commonly treated by aeration before it is discharged. To avoid environmental pollution and to optimize treatment, leachate can be treated anaerobically to produce biogas. Two-stage anaerobic reactors are considered to be more effective and efficient in degrading organic substances in leachate. This study aims to evaluate the reactors built to increase degradation efficiency and composition of CH4 contained in biogas. To improve reactor’s performance, the feed tank replacement, leackage check, and gas holder replacement were conducted. Leachate was obtained from Sarimukti Padalarang, West Bandung and starter, cow rumen, was obtained from a slaughter house in Ciroyom, Bandung. The value of pH in the 1st reactor (R1) was in the range of 5-6.5 and in the 2nd reactor (R2) was 7-8. Acidic pH range allows the occurrence of hydrolysis and acetogenesys, meanwhile the normal pH range allows the occurrence of methanogenesys. Analysis parameters were COD, BOD, pH, and composition of CH4 in biogas. CH4 produced within 45 days, COD degradation efficiency, and maximum CH4 composition were 2 liters, 86.9%, and 24%, respectively. CH4 was started to be produced after day 18.

OPTIMALISASI PRODUKTIVITAS PETERNAK BABI DI SULAWESI UTARA MELALUI RANCANG BANGUN MESIN PEMBERI PAKAN TERNAK OTOMATIS Saroinsong, Tineke
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

The pig farmers in eastern Tawaang Village of North Sulawesi besides working as farmers, they also work as coconut farmers. So they have difficulties in dividing the task. As in feeding activity that are still done manually, so it takes a long time for this activity. To overcome this problem, the farmers need appropriate technology in the maintenance of pigs, especially the time to feed the cattle. The purpose of the community partnership program in eastern Tawaang village is to create an automatic pig feed system. The methods of implementation is begun by identifying the problem, the second is the design and manufacture of feed machine, the third is the feed machine trial, and the las is to provide training on the right operation and maintenance of the feed machine. The resuls of this community partnership program is to provide approriate technology in the form of automatic, regular, and scheduled pig feed machine in accordance with the number and age of livestock. Finally, the quality and quantity of pork production in eastern Tawaang village in particular and in North Sulawesi in general will increase, beside that the farmer can optimize the working time.

UJI VISUAL THERMOGRAPHY PADA OSCILLATING HEAT PIPE Sukadana, Ida Bagus Putu
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Oscillating Heat Pipes one of the new family of heat pipe is two-phase heat transfer technologies with excellent performance capabilities, simple structure and low production costs. As one of the non-intrusive method in temperature measurement, thermography observation in OHP still very rarely to use although the result was able to explain the relation between temperature oscillation and fluidic motion of fluid. Furthermore this paper aims to study the behavior of thermal profile with the thermography observation. Water with filing ratio (45%) has been chosen as the working fluid for the close loop OHP. The heating power was varying into the evaporator section of OHP from 12 until 142 Watt. It was found that thermography observation very useful tools to define internal flow pattern inside OHP channel. Intermittent oscillation, circulation and dry-out phenomenon was captured more better than conventional temperature measurement. The lowest thermal resistance was found 0.234 °C/W corresponding with 3210 Watt/mK effective thermal conductivity at heat input 142 Watt.

ANALISIS PERBANDINGAN PERENCANAAN METODE CPM PROYEK ICCP MENGGUNAKAN VARIASI PELETAKAN GROUNDBED PADA LINE PIPA GAS EKSISTING PERUSAHAAN PUPUK Novita, Vitalia Dian; Antoko, Bambang; Mahardhika, Pekik
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Perusahaan pupuk di Indonesia didirikan untuk memenuhi kebutuhan pertanian dan pangan nasional. Untuk menunjang pelayanan distribusi maupun proses, sistem perpipaan di dalamnya didesain dengan memperhatikan performanya, termasuk pada proteksi katodiknya. Pada salah satu pabrik di perusahaan pupuk yang diteliti sedang memiliki permasalahan proteksi katodik sehingga membutuhkan pergantian sistem proteksi dari SACP yang sudah ada menjadi ICCP. Mengacu pada penelitian sebelumnya dan berdasarkan kondisi area yang sudah ada, variasi penempatan groundbed dapat dilakukan untuk dianalisa mana yang paling tepat digunakan untuk sistem perpipaan di perusahaan pupuk tersebut. Sebanyak 5 titik lokasi telah dipilih berdasarkan pertimbangan kondisi area sesuai dengan sketsa terlampir. Langkah pertama adalah melakukan perhitungan teknis pada masing-masing variasi, kemudian melakukan perencanaan proyek yang selanjutnya dianalisa keunggulan dari hasil perhitungannya. Dari hasil perhitungan yang telah dilakukan, dapat disimpulkan bahwa sistem ICCP dengan menggunakan 2 groundbed tipe 3 adalah yang paling efektif digunakan untuk sistem perpipaan eksisting pada pabrik yang diteliti karena memiliki keunggulan terbanyak dibandingkan variasi yang lain.

PERFORMA DAN EMISI MESIN EMPAT LANGKAH BERBAHAN BAKAR CAMPURAN BIOETHANOL DAN PERTALITE DENGAN VARIASI TIMING IGNITION Dhani, Ayuk Rima; Majedi, Farid
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

AbstrakJumlah kendaraan bermotor yang meningkat menyebabkan peningkatan konsumsi bahan bakar dan pencemaran udara. Solusinya dengan memakai campuran bioethanol pada bahan bakar pertalite. Penambahan bioethanol dapat meningkatkan angka oktan sehingga membutuhkan beberapa perubahan pada mesin. Salah satunya dengan memajukan timing ignition. Metode yang digunakan adalah dengan memajukan timing igniton sebesar 21° BTDC, dan 30° BTDC dari kondisi standar yaitu 12° BTDC. Pengujian dilakukan dengan dynotest untuk mengetahui daya dan torsi. Pengujian emisi gas buang menggunakan alat gas analyzer. Berdasarkan hasil pengujian, penambahan bioethanol dapat meningkatkan daya, torsi, serta dapat menurunkan emisi gas buang. Daya tertinggi dicapai oleh variasi timing ignition 30° BTDC dengan E10 yaitu sebesar 6,7 Hp pada putaran mesin 6750 rpm. Torsi tertinggi dicapai oleh variasi timing ignition 30° BTDC dengan E10 sebesar 9 Nm pada putaran mesin 4000 rpm. Emisi gas buang, konsentrasi CO rata-rata terbaik dicapai oleh variasi timing ignition 30° BTDC dengan E10 sebesar 4%. Konsentrasi HC terendah pada variasi timing ignition 30° BTDC dengan E10 sebesar 74 ppm. Nilai rata-rata konsentrasi CO2 tertinggi pada timing ignition 30° BTDC dengan E10 sebesar 13,6%. Konsentrasi O2 terendah pada variasi timing igniton 30° BTDC dengan E10 sebesar 3% pada putaran mesin 7000 rpm.Kata Kunci: timing ignition, daya, torsi, emisi gas buang AbstractThe increasing number of motorized vehicles has led to increased fuel consumption and air pollution. The solution is to use a bioethanol mixture on pertalite fuel. The addition of bioethanol can increase octane numbers so that it requires some changes to the engine. One of them is by advancing timing ignition. The method used is to advance the timing igniton at 21 ° BTDC, and 30 ° BTDC from the standard condition of 12 ° BTDC. Testing is done with dynotest to determine power and torque. Exhaust gas testing uses a gas analyzer. Based on the results of testing, the addition of bioethanol can increase power, torque, and can reduce exhaust emissions. The highest power is achieved by variations of the timing ignition 30 ° BTDC with E10 which is 6.7 hp at 6750 rpm. The highest torque is achieved by variations of the timing ignition 30 ° BTDC with E10 of 9 Nm at 4000 rpm engine speed. Exhaust gas emissions, the best average CO concentration is achieved by variations of the timing ignition 30 ° BTDC with E10 by 4%. The lowest HC concentration in the variation of timing ignition 30 ° BTDC with E10 is 74 ppm. The highest average CO2 concentration at the timing ignition 30 ° BTDC with E10 is 13.6%. The lowest O2 concentration in timing variations igniton 30 ° BTDC with E10 at 3% at 7000 rpm engine speed

KARAKTERISTIK POTENSI ANGIN SEBAGAI SUMBER ENERGI TERBARUKAN DI INDONESIA DARI DATA SATELIT REMOTE SENSING Swardika, I Ketut
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Global warming, climate changes mostly associates with solar-renewable energy; however wind-energy potential has no detail reports in Indonesia. This study aims to mapping of characteristics and potential of wind as renewable-energy from long-term (1997-2009) satellite remote-sensing. Wind direction (WD), speed (WS) derives from microwave/ scatterometer sensor on satellite operational years as follows: ADEOS (1997), DMSP (1998-1999), AMI (1997-1999), QuikSCAT (1999- 2009). Data processed into 0.25o grid, monthly temporal resolution. The regional characteristics of WD/WS, seasonal and zonal-longitudinal reveals by statistic. Electrical energy derives from kinetic energy of turbine-blades per-unit time. Energy conversion uses power-curves and technical parameters of 1.50 and 3.40 MW (GE 1.5s, 3.4-137 models) onshore installations with 25km2 per point, 15% availability area. Result shows WS has low characteristics in Indonesian-waters (<3.7ms-1). WS has high at north-south Java-Sumatra, Banda waters (<6.9ms-1). The zonal-seasonal wind variability of WD, WS stables at equator. Increases of degree-zonal (>5deg), wind curve follows north-south hemisphere characteristics and crosses in April, October. The north-west, south-east monsoon shows clearly only on north-western of Java-Sumatra waters. WS has range of 0-25.20ms-1, average 6.64ms-1 with Std. 1.64ms-1. With these WS, generation of electrical energy has range from 104.0 to 2230.5 kWh per-point installation grid.

ANALISIS DAMPAK GAYA TUMBUKAN MELALUI PERUBAHAN BENTUK SEGI CRUSH INITIATOR PADA STRUKTUR TAILOR-WELDED BLANK Dionisius, Felix; Wasiah, I'ah; Istiyanto, Jos; Malawat, Mohammad; Khoerun, Bobi
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Tailor-welded blank (TWB) structure is one of the vehicle component models used in vehicle parts. In addition, these structures can be used in crashworthiess technology which can reduce injuries during a collision.. The structure of a vehicle that has greater strength can cause passengers to be thrown from the passenger compartment. This paper discusses the effect of faceted holes such as square, hexagonal and octagonal as crush initiator mounted on TWB which results in a maximum impact force (Fmax). The smallest maximum impact force is the criteria achieved from this study. The method used experimental quasi-static loading of the actuator speed of 0.5 mm/s to achieve 9.5 mm of deformation. TWB was made from plate formation with a process of stamping to spot weld. The result showed that the maximum impact force has an increase directly proportional to the addition of the shape of the crush initiator in the amount of 14.633 kN to 18.705 kN. From these results, it can be seen a square hole as best design in obtaining the smallest maximum impact force.

cover jtt vol 5 no 1 jtt, jtt
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

jtt polindra

Page 7 of 30 | Total Record : 292

5 6 7 8 9

Filter by Year

2015 2025

Filter By Issues

All Issue Vol 11, No 2 (2025): Jurnal Teknologi Terapan Vol 11, No 1 (2025): Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan Vol 10, No 1 (2024): Jurnal Teknologi Terapan Vol 9, No 2 (2023): Jurnal Teknologi Terapan Vol 9, No 1 (2023): Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan Vol 8, No 1 (2022): Jurnal Teknologi Terapan Vol 7, No 2 (2021): Jurnal Teknologi Terapan Vol 7, No 1 (2021): Jurnal Teknologi Terapan Vol 6, No 2 (2020): Jurnal Teknologi Terapan Vol 6, No 1 (2020): Jurnal Teknologi Terapan Vol 5, No 2 (2019): Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan Vol 3, No 2 (2017): Jurnal Teknologi Terapan Vol 3, No 2 (2017): Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan Vol 2, No 2 (2016): Jurnal Teknologi Terapan Vol 2, No 2 (2016): Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Adi Kusmayadi

Contact Email
adikusmayadi@polindra.ac.id

Phone
-

Journal Mail Official
jtt@polindra.ac.id

Editorial Address
-

Location
Kab. indramayu,

Jawa barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Adi Kusmayadi

Contact Email adikusmayadi@polindra.ac.id

Phone -

Journal Mail Official jtt@polindra.ac.id

Editorial Address -

Location Kab. indramayu, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Adi Kusmayadi

Contact Email
adikusmayadi@polindra.ac.id

Phone
-

Journal Mail Official
jtt@polindra.ac.id

Editorial Address
-

Location
Kab. indramayu,

Jawa barat

INDONESIA