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Jurnal Teknologi Terapan
Published by Politeknik Negeri Indramayu
ISSN : 24773506     EISSN : 25491938     DOI : -
Core Subject : Science, Engineering,
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
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ANALISIS SAMBUNGAN LAS GMAW BAJA ASTM A36 YANG TERPAPAR PANAS TINGGI DAN PENDINGINAN CEPAT Nurudin Nurudin; Alfi Tranggono Agus Salim; Indarto Yuwono; Amelia Rahmatika; Suparman Suparman
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.436

Abstract

Fires in steel construction, especially in welding joints, cause damage, changes in crystal structure, and mechanical properties of the material. Another effect of the fires, the material undergoes rapid cooling due to extinguishing using water. This research aims to simulate fires on ASTM A36 steel material to analyze the impact of fires. The method of this research is to perform GMAW welding on A36 steel material with heat treatment at 400 °C unti 700 °C and rapid cooling using water. The results of the research are the mechanical properties of the material in the form of crystal structure, hardness level and ultimate tensile strength. The crystal structure of ferrite and pearlite was observed, there was a change in structure, namely coarse ferrite, fine ferrite, and a mixture of bainite martensite. The highest hardness values of coupons temperature is 550 °C until 700 °C, comparison coupons, and coupons temperature at 400 °C-550 °C, which value 169,3 HV, 166.3 HV, and 141,3 HV in the weld zone. Tensile test fractures on the base metal with the ultimate tensile strength coupon with temperature 550 until 700 °C of 481,75 N/mm², the comparison coupon of 478,5 N/mm², and the temperature coupon of 400 until 550 °C which is 456 N/mm². The material is ductile.
Penerapan Sistem SCADA Audit Energi Listrik Berbasis Raspberry-Pi Codesys Dengan Komunikasi Modbus TCP Di Workshop Elektro Politeknik Enjinering Indorama. Yuda Muhammad Hamdani; Sarosa Castrena Abadi; Dani Usman
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.369

Abstract

The Covid-19 pandemic has an impact on almost all sectors of people's lives including the industrial sector.. According to Director of Energy Conservation Haryanto, the efforts that the industry can do to survive the current pandemic period is with conservation and energy efficiency, because when an industry has implemented an energy efficiency system, the industry will be able to reduce energy costs and reduce carbon dioxide (CO2) emissions.  This research aims to create a prototype system that can support effective and efficient energy utilization efforts through the monitoring system of electricity use in the Politeknik Enjinering indorama Electrical department Workshop building so that it is expected to be used as a reference for energy audit systems both in the community environment and in the Politeknik Enjinering Indorama in order to aim for energy utilization. In this system Nodemcu ESP 8266 which acts as an RTU (Remote Transfer Unit) will send the results of processing data measurement sensor PZEM 004t to MTU (Master Transfer Unit) Raspberry pi using the Communication Protocol Modbus TCP, then the data received by MTU from RTU will be displayed to the display HMI (Human Machine Interface) Webvisu from Codesys so that sensor measurement data can be monitored in real time in the Politeknik Enjinering indorama Electrical department Workshop building either through the Computer or mobile phone. Based on the results of PZEM04T sensor testing for energy use for 30 days obtained the largest energy usage data, namely on line 1 of 83235.31 KWh, on line 2 of 79122.49 KWh and on line 3 of 26289.15 with accuracy rates for each line1, 2 and 3 which is 4.46%, 4.87% and 9.89%. The conclusion of this study that the system successfully functioned in accordance with the purpose of the study is to monitor the use of electrical energy in the Electrical Engineering wokshop building both through mobile phones and PCs in real time to be further referenced to the process of effective and efficient energy utilization in the future.Keywords: Energy Audit; PZEM04T; Raspberry Pi Codesys; Modbus TCP.
PENGARUH JENIS ACTIVATED FLUX DAN VARIASI KUAT ARUS PADA PENGELASAN A-TIG DISSIMILAR MATERIAL TERHADAP KEDALAMAN PENETRASI, KEKERASAN, STRUKTUR MIKRO DAN LAJU KOROSI Imam Khoirul Rohmat; Moch Iqbal Ramadhan; Dika Anggara
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.375

Abstract

The TIG welding process has shallow penetration. The addition of activated flux can increase the depth of penetration of the weld, which is called A-TIG welding, so this study to analyze the effect of the activated flux type and current on the depth of penetration, hardness, microstructure, and corrosion rate. This study used SUS 304 and A36 materials with a thickness of 6 mm which are welded using the A-TIG welding process with variations of activated flux Fe2O3, Cr2O3 and variations in the current strength of 100 amperes and 120 amperes. To find out the results of these variations, this study was tested by macro, hardness, microstructure, and corrosion rate tests. The results of the study on variations in the type of activated flux and variations in current resulted penetration depth of 3.6 mm found in activated flux Cr2O3 with 120 amperes and penetration depth in activated flux Fe2O3 with a value of 2.43 mm on 100 amperes. Then the highest hardness value was found in activated flux Fe2O3 and 120 amperes with a value of 471.48 HVN, and the lowest is in Cr2O3 ampere 100 with a value of 398.16.HVN. The micro test results in a phase change from pearlite, ferrite, and austenite to martensite in the weld metal. And to test the corrosion rate on activated flux Fe2O3 and a current of 120 amperes with a value of 0.24931 mm/year, the activated flux Cr2O3 and a current of 100 amperes with a value of 0.090114 mm/year.
STUDI PERANCANGAN ANTENA MICROSTRIP MONOPOLE BENTUK PATCH SEGITIGA DENGAN TEKNIK DEFECTED GROUND STRUCTURE UNTUK APLIKASI ULTRA-WIDEBAND M Darsono; Dwi Widiatmoko
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.449

Abstract

Study on the design of a microstrip monopole antenna as a form of support and development of UWB (Ultra-Wideband) wireless communication devices. The basic concept of the proposed antenna design is minimalist with the characteristics of operating on broadband in accordance with those regulated by the FCC (Federal Communications Commission). The design of a planar type of microstrip antenna with triangular radiation using the DGS (Defected Ground Structure) technique for the design of a trapezoidal ground plane. As support in this research, Duroid RT 5880 substrate material and CST software were used for the simulation method. The results of the simulation method obtained are twofold: The shape of the antenna design configuration is minimalist and compact and the antenna performance parameters. For antenna performance parameters obtained through simulation methods, such as the fractional bandwidth of return loss below 10 dB is 3.8:1 (VSWR < 2), and the maximum power radiation transmittance is 2.59dBi, forming an omnidirectional radiation pattern with vertical polarization. The characteristics of the operating performance of the antenna on the UWB spectrum are able to cover the frequency area in the C-Band and X-band and in the application, the antenna design supports wireless LAN communication and satellite communication systems.
DESAIN SISTEM PEMBANGKIT LISTRIK TENAGA SURYA 1 KW MENGGUNAKAN MESIN STIRLING TIPE ALFA Indra Fitriyanto; Gunawan Nugroho
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.440

Abstract

Stirling engine can be operated by focusing sunlight using a concentrator. The Stirling engine was chosen because of its simplicity and efficiency. Stirling engine can be applied to power plants on a large or small scale. In this study, we will discuss the concentrator system for the Stirling engine on a household scale. To be able to meet the household electricity needs of 900 VA, the concentrator must produce an output power of 2254.96 W with a concentrator area of 15.38 m2. First of all, aperture sizing is done to get the best aperture diameter, and obtained 0.04 m. The system analysis that has been carried out shows that the efficiency of the receiver is 57.50%, the efficiency of the Stirling engine is 33.26%, and the efficiency of the generator is 95%. Thus, the Stirling engine with the concentrator as a whole system has an efficiency of 17.07%. To meet the 900 VA class household electricity needs, the system requires 5 unit of 12 V 120 Ah batteries arranged in parallel with a 1000W inverter. This study also looks at the potential of Stirling engine systems with concentrators in other areas. Based on the analysis that has been done, Surabaya is the most potential area for the manufacture of a 1 kW Stirling engine concentrator system. As for areas outside Java, Pekanbaru City is the most potential area.
UJI PEFORMA RANCANG BANGUN PORTABLE VACUUM GRAIN CONVEYOR TIPE CENTRIFUGAL FAN Dedi Suwandi; Tito Endramawan; Adi Suheryadi; Alfarisi Alfarisi; Felix Dionisius
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.465

Abstract

Portable vacuum grain conveyor (PVGC) work as transporting grain materials such as grain, wheat, sorghum, corn and its kind using air media. The advantages of this machine are that it can move material quickly, the material does not fall in the transportation process, it can move from the bottom to the top or vice versa, it does not require a feed hopper, and the machine can move places. How the PVGC machine works by utilizing the suction and thrust of a vacuum blower. The seed material is sucked in by the input hose and then into the cyclone to separate the air and seed material. Air from the cyclone enters the vacuum blower through the input hole and is blown into the output line to push the material falling from the cyclone through the rotary airlock. Seed material out through the output hose is directed to the desired place. Performance testing of the PVGC engine includes noise, the air suction speed of the input hose and the thrust speed of the output hose, the engine capacity, and thermal testing. The highest noise test results in the electric vacuum blower motor was 95.5 dBA ±1, the air suction speed at the input hose was 38 m/s ±3, the air thrust speed at the output hose was 44 m/s ±2, the capacity of the PVGC machine could transport IR64 of grain type with weighing 88 kg/minute. The hottest component was in the vacuum blower with a temperature of 52.50C.
PERBANDINGAN PERFORMANSI LATENCY PROTOKOL KOMUNIKASI HTTP DAN MQTT PADA INTERNET OF THINGS Susetyo Bagas Bhaskoro; Hadi Supriyanto; Berlian Bayu Aji; Budi Pamungkas
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.309

Abstract

The objective of this study is to compare the performance (latency parameter) of HTTP and MQTT protocols. The latency parameter is the difference in time for a packet being transmitted and received. The tests are distinguished on different days and times. The results obtained are that the MQTT is better than HTTP. The results of the comparison values three times in a row are as follows: 46.6ms, 52.3ms, and 50.2ms
IMPLEMENTASI KONTROLER PID DENGAN METODE TUNING ZIEGLER-NICHOLS DAN COHEN-COON PADA SISTEM SCADA KENDALI LEVEL AIR Hadi Supriyanto; Fitria Suryatini; Abdur Rohman Harits Martawireja; Hendy Rudiansyah
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.410

Abstract

Didactics or mini plant teaching aids help students in colleges to understand the use of industrial equipment The SCADA-based water level control system is one of the teaching aid simulator equipment for monitoring and controlling water levels. In this research, PLC is used as a controller with three I/O modules  digital input module, digital output, and analog input and output. Arduino is also used as an analog output converter from PLC to actuator. The control method used is PID control. In the PID control, there are control parameters, namely Kp, Ki, and Kd. The third parameter was determined by the Ziegler-Nichols tuning method and compared with the Coohen-Coon method. The SCADA software that used is Wonderware Intouch on a system using a kepserver. The results of this study indicate that the Cohen-Coon tuning method for proportional control Kp = 1 produces the best response in water level control with a settling time of 21s and a rise time of 18s.
Cover JTT Vol 8 no 2 tahun 2022 JTT Polindra
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.489

Abstract

Cover JTT Vol 8 no 2 tahun 2022
Daftar Isi JTT Vol 8 no 2 tahun 2022 JTT Polindra
Jurnal Teknologi Terapan Vol 8, No 2 (2022): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v8i2.488

Abstract

Daftar Isi JTT Vol 8 no 2 tahun 2022

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