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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Teknik Mesin Indonesia Scientific Journal of Mechanical Engineering Kinematika
Fajar Anggara
Universitas Mercu Buana
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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STUDI NUMERIK: PENGARUH DEBIT INLET TERHADAP KARAKTERISTIK PELELEHAN PARAFFIN WAX PADA TABUNG SILINDER Fajar Anggara; Henry Carles; Pathur Razi Ansyah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.132 KB) | DOI: 10.20527/sjmekinematika.v4i1.48

Abstract

Latent Heat Thermal Energy Storage (LHTES) is the method to store thermal energy by changing the phase of Phase Change Material (PCM). This method is being developed to store heat loss for increasing energy efficiency. In this paper, the effect of variation flow rate on the melting characteristics PCM was investigated by three-dimensional numerical simulation using ANSYS FLUENT 17. The set-up of this research was carried out on concentrically two cylindrical tubes with diameter outer tube 10 cm and length 60 cm while diameter inner tube 5 cm and length 50 cm. The inner tube is used as a PCM container and the outer tube which has bottom and top hole is used as Heat Transfer Fluid (HTF) circulation. Variation HTF or hot water flowrate was carried out by 4L / min, 8L / min and 12 L / min while the temperature is kept at 75oC, then flowed through bottom hole and out to top hole. From this study it was found that the variation flow rate did not have significant effect on the melting pattern, only the greater flow rate, the smaller melting time. Natural convection is the main role of heat transfer when melting.
NUMERICAL STUDY: COMPARISON THE EFFECT OF RATIO LENGTH AND DIAMETER GUIDE VANE OF AIR FLOW ON OUTLET DUCTING Fajar Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.178

Abstract

Guide vane has an important role for conditioning flow pattern of fluid velocity. With the configuration of axial turbine blade, the flow pattern near wall must have the highest velocity. As such that intention, this research is conducted to compare between the effect of dimension ratio of length and diameter of guide vane using ANSYS FLUENT 17. The dimension ratio of guide vane has been divided into two types with each of types has three variations. Type 1 is ratio of length that having variation A, B and C, whilst type 2 is ratio of diameter with D, E and F variations. The result shows that variation B and F produces the highest velocity. Because the effect of acceleration on variation B is maximum so that it increases the velocity, while on variation F has the smallest angle of guide vane that would reduce the drag force.
EVALUASI KINERJA ESP DN1800 UNTUK MENAIKAN PRODUKTIVITAS SUMUR MINYAK Fajar Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 1 (2021): SJME Kinematika Juni 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i1.185

Abstract

The use of the Electrical Submersible Pump (ESP) in the oil lifting method is very popular because it is easy to install, less required installation of tools in the field and a high efficiency. To achieve the Q target, ESP parameters such as the number of stages and RPM need to be analyzed to align with the IPR (Inflow Performance Flow) curve. The use of nodal analysis is used to determine the relationship between Pwf and head pump. Iteration needs to be done to determine the range of the number of stages so that it aligns with characteristics of well. It is found that the recommended range stage is 580-600 at a well depth of 7684 ft. Moreover, it is found that with 3600 RPM and 600 stages is able to reach the Q target. The relationship between the number of stages and RPM value with Pwf is inversely proportional.
Simulasi kontur distribusi suhu dan kecepatan fluida pada heat exchanger type shell and tube aliran dua stage sistem counter flow dengan computational fluid dynamics (cfd) Achmad Ramadhan Muzaki; Fajar Anggara
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.6-13

Abstract

The simulation of temperature and velocity distribution contours is designed to produce output regarding the capability and reliability of the shell and tube heat exchanger system, as input in the framework of assessing system development and optimization of operating results. This research was conducted numerically with a variation of hot fluid input flow of 0.8 kg / second and a cold fluid input flow of 1 kg / second and variations in hot inlet temperatures: 60 ° C, 90 ° C, 120 ° C, cold temperature inlet variations: 15 ° C, 16 ° C, 18 ° C using the Computational Fluid Dynamics (CFD) method on the ANSYS software. In this study, the design contours of the temperature and velocity of the outlet of hot fluid and outlet of cold fluid can be determined with the following variation results: the contour of the temperature distribution of hot fluid is seen on the lowest part of the wall which has a blue color and the highest has a red color, while the cold fluid shows a temperature. the lowest is dark blue and the highest temperature is light blue. The velocity distribution contours of hot and cold fluids can be seen on the lowest part of the wall which has a blue color and the highest has a yellow green color.
PERANCANGAN DAN ANALISIS TEGANGAN PRESSURE VESSEL HORIZONTAL SEPARATOR DENGAN METODE ELEMEN HINGGA Aswin Aswin; Fajar Anggara
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.219

Abstract

Pressure vessel separator merupakan salah satu bejana tekan yang berfungsi untuk memisahkan fluida berupa air, minyak, dan gas yang memiliki densitas berbeda. Perancangan bejana tekan pada penelitian ini bertujuan untuk menghitung kekuatan dan tegangan pada material. Data perancangan menggunakan data sekunder berupa datasheet dan process flow diagram yang menunjukkan spesifikasi dan orientasi dari pressure vessel separator. Tekanan operasi sebesar 5 psi, tekanan desain sebesar 200 psi, temperatur operasi sebesar 90 F dan temperatur desain sebesar 212 F. Material dari saddle, shell, dan head yang digunakan yaitu SA 516 Gr.70, nozzle neck menggunakan A106 Gr. B, dan material nozzle flange menggunakan SA 105. Perancangan dan analisis dilakukan menggunakan perhitungan manual yang mengacu pada standar ASME section VIII yang merupakan standar untuk perhitungan bejana tekan dan analisis tegangan menggunakan software solidworks yang merupakan software untuk pemodelan gambar tiga dimensi dan analisis elemen hingga. Hasil perancangan dan analisis menggunakan perhitungan manual menggunakan standar ASME section VIII, maka diperoleh maximum allowable working pressure 290.934 psi. Analisis tegangan circumferential menggunakan software solidworks diperoleh 21680.2 psi dan tegangan longitudinal diperoleh 25430.7 psi, Sehingga hasil analisis dinyatakan aman karena tidak melewati nilai tekanan desain dan tegangan ijin yaitu 38000 psi.
Studi potensi listrik dari hembusan angin luaran air conditioner Gian Villany Golwa; Fajar Anggara; Imam Hidayat
Jurnal Teknik Mesin Indonesia Vol. 18 No. 2 (2023): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v18i2.464

Abstract

The utilization of air conditioners (AC) will consume a lot of electricity in the world. According to the predictions of the International Energy Agency (IEA) electricity consumption for AC will be the main trigger for soaring world electricity demand in 2050. Data from the Central Statistics Agency (BPS) in March 2017 showed 7.98 percent of households in Indonesia use AC. The wind speed coming out of the condenser in an AC with a capacity of 0.5-2 PK has an average speed of 4.83 m/s. This research will test the potential electricity that can be generated from air blowing from an AC with 2 types of generator prototypes. Both types of generators will be tested directly on the AC exhaust unit. The test results show that with an average wind speed of 4.83 m/s, the vertical blade generator with 12 blades installed can produce up to 7 volts, and on the horizontal blade generator with 6 coils, each coil has 300 turns, the voltage is up to 14.82 Volts. The conclusion from this research is that the horizontal blade generator is sufficient to supply electricity to the battery before consumption.
Pemanfaatan Limbah Kantin Sekolah Menjadi Pupuk Organik Sebagai Teknik Pengolahan Sampah di Sekolah Nur Indah; Darwin Sebayang; Rita Sundari; Subekti Subekti; R. Ariosuko; Fajar Anggara; Gian Villany Golwa
JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) VOL. 8 NOMOR 2 JULI 2024 JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat)
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/jppm.v8i2.21272

Abstract

Tujuan kegiatan ini adalah untuk keterampilan dan kemampuan dalam pembuatan pupuk organik cair pada siswa SMKN 35, dalam rangka mengurangi pencemaran lingkungan akibat limbah kantin disekolah. Pelatihan ini terdiri dari dua bagian, yaitu indoor dan outdoor. Dalam indoor diberikan materi mengenai proses dan prosedur pembuatan sampah menjadi pupuk cair. Sedangkan outdoor melakukan praktek cara pembuatan tabung composer dan cara pembuatan pupuk organik cair dari limbah yang berasal dari kantin dan buah-buahan yang busuk. Sehingga siswa-siswi SMKN 35 dapat memperoleh pengetahuan dan keterampilan cara membuat pupuk cair organik dari limbah kantin dan buah-buahan busuk. Hasil kegiatan juga berupa antusiasme dan semangat siswa-siswi yang mengikuti pelatihan sebanyak 30 orang menunjukkan ketertarikan dalam praktek pembuatan pupuk cair organik dari limbah.
Co-Authors Achmad Ramadhan Muzaki Aswin Aswin Darwin Sebayang Gian Villany Golwa Gian Villany Golwa Henry Carles Imam Hidayat Nur Indah Pathur Razi Ansyah R. Ariosuko Rita Sundari Subekti Subekti