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All Journal Rekayasa Mesin JURNAL SIMETRIK Abdi Wina : Jurnal Pengabdian Kepada Masyarakat Universitas Kristen Wira Wacana Sumba Journal Mechanical Engineering Jurnal Indonesia Mengabdi
Pelasula, Berthy
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PENGARUH PENGUJIAN KEKERASAN DAN PENGUJIAN TEKAN TERHADAP KARAKTERISTIK GAYA TUMBUKAN PADA CANGKANG KENARI (CANARIUM INDICUM L) Loppies, Leslie S.; Patty, Alexander A.; Pelasula, Berthy; Lekatompessy, Roy R.; Nanulaitta, Nevada Mario
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1227

Abstract

Kenari (Canarium indicum L) belongs to the Burseraceae family and is one of the endemic fruits in Indonesia, especially Maluku. Walnuts have a tough shell that encloses the flesh, to get the flesh without damaging it careful effort is needed. This study investigated the strength of walnut shells through mechanical testing to determine the amount of impact force needed to break the walnut shell. The mechanical test carried out is a compression test and impact test. The values of these tests assist in determining, measuring, and analyzing the minimum and maximum force loads required to crack a walnut shell. Tests were carried out on walnut shells from 6 different villages on Ambon Island and Saparua Island. The impact test where the highest impact absorption energy value was found in walnut shells from Booi Village, namely 23.18 J/mm2, and the lowest in walnut shells from Morela Village, 22.40 J/mm2. In the compression test where the lowest value was found in walnut shells from Morela village with a value of 3.61 MPa while the highest value was found in walnut shells from Booi village, namely 5.24 MPa. Whereas the minimum compressive force is 16.22 kgf/mm2 and the maximum compressive force is 17.61 kgf/mm2.
A APLIKASI PENDAFTARAN UJI KOMPETENSI PADA LEMBAGA SERTIFIKASI PROFESI P1 POLITEKNIK NEGERI AMBON BERBASIS WEB Dahoklory, Melda; Salamoni , Thenny Daus; Pelasula, Berthy; Pormes, Ludwina; Molle, Marchia
JURNAL SIMETRIK Vol. 13 No. 2 (2023)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v13i2.1899

Abstract

Lembaga Sertifikasi Profesi (LSP) adalah lembaga pelaksana kegiatan sertifikasi profesi yang memperoleh lisensi dari Badan Nasional Sertifikasi Profesi (BNSP). LSP P1 Politeknik Negeri Ambon telah beberapa kali melaksanakan uji kompetensi kepada mahasiswa semester akhir di Politeknik Negeri Ambon dengan pemilihan skema sesuai dengan jurusan masing-masing. Namun dalam pelaksanaannya sering kali mengalami masalah administrasi yaitu tercecernya berkas pendaftaran dari mahasisa/calon asesi, waktu yang tidak efisien karena harus datang ke lokasi sehingga dilakukan pengembangan aplikasi pendaftaran uji Kompetensi yang bertujuan untuk merancang dan membangun aplikasi pendaftaran serta penjadwalan kepada mahasiswa yang ingin melakukan uji kompetensi sehingga mempermudah proses penerimaan informasi, pendaftaran hingga penjadwalan. Aplikasi Pendaftaran Uji Komepetensi berbasis web ini merupakan solusi untuk mahasiswa yang ingin  melihat informasi serta mendaftarkan diri sebagai asesi yang selanjutnya dijadwalkan untuk mengikuti ujian kompetensi. Aplikasi ini dikembangkan dengan menggunakan metode Waterfall. Aplikasi yang dibangun menggunakan bahasa pemrograman PHP dengan framework Codeigniter 3, Boostrap versi 4, dan Javascript pada software Sublime Text 3. Sistem pada aplikasi ini menyediakan website untuk melihat informasi terkait LSP P1 Politeknik Negeri Ambon, yaitu: profil LSP, skema, asesor, TUK, informasi dan kontak. Mahasiswa juga dapat mendaftarkan diri sebagai asesi dengan melakukan registrasi yang akan dikonfirmasi oleh administrator. Setelah itu, asesi dapat melakukan pendaftaran sertifikasi. Administrator akan mengelola jadwal sertifikasi yang dapat diakses oleh asesor dan asesi. Sistem dilengkapi dengan panduan sehingga dapat diakses dengan mudah. Hasil dari penelitian ini mempermudah pihak LSP, Asesi, dan Asesor dalam melakukan pendaftaran dan penjadwalan.
ANALISIS SISA UMUR PAKAI PIPA PENYALUR FUEL B.35 DI PLTMG AMBON PEAKER 30 MW Leatemia, Josua M.; Nanulaitta, Nevada J.M; Pelasula, Berthy
Journal Mechanical Engineering Vol. 2 No. 3 (2024): Desember
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i3.2888

Abstract

Pipeline systems are one way to deliver fuel from refineries to distribution points before it reaches consumers. The system consists of a number of pipes that transport the fluid over a considerable distance. An underground pipeline system is the system used in this design analysis. The technical requirements for the construction and planting of underground pipe systems will have an impact on the pipeline pressure. In this study is how to determine the Remain life of the fuel B.35 pipeline at the PLTMG Ambon Peaker 30 MW. Conducting a thickness testing method with an ultrasonic thickness gauge measuring instrument. In this test, researchers will carry out a series of stages, starting from pipe preparation and characterization to understand the initial condition of the pipeline. Afterwards, testing is carried out using an ultrasonic thickness gauge that not only focuses on the thickness of the pipe, but also on the overall structural integrity.This study was conducted by measuring the thickness of the pipe to obtain preliminary data to measure the remaining service life of the B.35 fuel distribution pipe from the holding tank to the daily tank. Measurement using ultrasonic thickness gauge. The length of the inspected pipe is 78 m divided into 13 staff, with 624 measurement points divided into 48 points per staff. The lowest remaining pipe life value is 13,5 years and the highest is in the 10th staff pipe worth 20,1 years. Keywords: pipe thickness, corrosion rate and remaining pipe service life
ANALISA TEORITIS HASIL PENGENDALIAN KOROSI PADA INSTALASI PIPA MINYAK DI PERUSAHAAN X Waworundeng, Tierza Yulia; Tuny, Samuel M. J. S.; Pelasula, Berthy
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2918

Abstract

Corrosion in oil pipelines is a frequent problem in the upstream oil and gas industry, reducing the strength of the structure to withstand fluid pressure and causing severe damage that cannot be repaired. This study aims to determine the factors that cause corrosion, apply the coating method as corrosion control, and conduct a comparative analysis of the corrosion control methods used in the oil piping system. The results of the analysis show that environmental conditions affect the type of material to be used. The use of the right pipe material such as stainless steel or API 5L steel can help in the selection of corrosion control methods, one of which is the coating method. Thus, this research helps to improve the operational efficiency of oil pipeline installations, reduce damage, and extend the service life of pipelines. In addition, this study also aims to compare the effectiveness of the corrosion control methods applied and the materials used, so that it can provide the right recommendations to control corrosion in oil pipes using an effective coating method.
ANALISA LAJU KOROSI PADA SAMBUNGAN ELBOW PIPA MINYAK DI PT. PLN ( PERSERO ) ULPLTD POKA Suparman, Widianti; Pelasula, Berthy; Patty, Alexander A.
Journal Mechanical Engineering Vol. 2 No. 2 (2024): Agustus
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v2i2.2921

Abstract

The oil pipeline network is a critical infrastructure that plays a vital role in the oil and gas industry. However, one of the significant challenges faced by this pipeline system is corrosion. Corrosion is a chemical process that leads to the deterioration of metal quality due to electrochemical reactions with the environment. Corrosion in oil pipelines not only reduces the wall thickness but can also result in leaks, structural damage, and even accidents that negatively impact human safety and the environment.The objective of this research is to analyze the corrosion rate in the elbow joints of oil pipelines at PT PLN (Persero) ULPTD Poka. This study employs a quantitative method involving two variables. The independent variable is the elbow type, specifically the 90° elbow, while the dependent variables are the corrosion rate calculations and the remaining service life (RSL) of the elbow pipes.The results indicate that the corrosion rate varies at each measurement point on the elbow joints. The RSL calculations show significant variation based on the thickness of the pipe wall at each elbow. The highest RSL values were found in elbows 3, 4, 5, and 8, with a remaining service life of up to 49.5 years. Conversely, elbow 1 had the lowest RSL at 38 years. The higher RSL in some elbows suggests that despite experiencing corrosion, the remaining thickness is still sufficient to support the pipeline's function for a longer duration. Recommendations include the need for intensive maintenance on the oil pipeline elbow joints, especially on segments above ground and near corrosive sources. Keywords: Oil Pipeline, Corrosion Elbow Joint, Remaining Service Life (RSL), Maintenance
Pelatihan Budidaya Tanaman Melon untuk Kelompok Tani Wera Un di Ohoi Udar Maluku Lopulalan, Cynthia G. C.; Mairuhu, Dedy; Sapulette, Alvian; Waileruny, Welem; Wattimena, Seftnah J; Malakauseya, Jeffrie; Pelasula, Berthy; Mailoa, M.
Jurnal Indonesia Mengabdi Vol. 6 No. 2 (2024): December Edition
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) STKIP Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/n47ke667

Abstract

Tanaman melon merupakan salah satu tanaman buahan yang populer di masyarakat. Daging buah melon yang tebal dan manis memberikan kesan segar menjadi daya tarik buah. Kegiatan pengabdian kepada masyarakat (PkM) di Ohoi Udar Kecamatam Elat Kabupaten Maluku Tenggara bertujuan untuk membina dan melatih masyarakat melalui kelompok tani tentang budidaya tanaman melon. Budidaya tanaman melon merupakan ilmu dan pengetahuan baru bagi anggota kelompok tani sehingga antusiasme sangat tinggi. Kegiatan PkM dilakukan dalam tiga tahap yaitu sharing ilmu, praktek di lahan dan evaluasi. Hasil kegiatan sangat memuaskan dimana terjadi peningkatan pengetahuan baik cara budidaya maupun pengoperasian alat.
PEMBERDAYAAN MASYARAKAT MELALUI PELATIHAN PEMANFAATAN PEKARANGAN UNTUK PENANAMAN TANAMAN BUAHAN PADA MASYARAKAT OHOI NGEFUIT, KECAMATAN KEI BESAR SELATAN BARAT, KABUPATEN MALUKU TENGGARA, MALUKU Lopulalan, Cynthia Gracia C; Mairuhu, Dedy; Sapulette, Alvian; Waileruny, Welem; Wattimena, Seftnah J; Malakauseya, Jeffrie; Pelasula, Berthy; Mailoa, Meitycofrida
ABDI WINA JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 5 No. 1 (2025): Abdi Wina Edisi Juni 2025
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Kristen Wira Wacana Sumba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58300/abdiwina.v5i1.1155

Abstract

ABSTRACT The purpose of community service activities in Ohoi (Village) Ngefuit, Kei Besar District, Southeast Maluku Regency, Maluku Province is to provide counseling and training on cultivating fruit plants in yards while explaining the benefits of fruit for health. Communities far from the city center are state assets that must be maintained, fostered, and trained to minimize the backwardness that occurs. Rambutan and longan have good adaptability, so they are easy to plant in the yards of farmer groups. The close planting location allows maximum care, so it is expected to provide good results. The process of sharing knowledge and mentoring in PkM activities is an important thing that academics due to the community as part of implementing science and knowledge. Key words: Community empowerment; counseling; training; fruit plants
EVALUASI STIMULASI PENGASAMAN (MATRIX ACIDIZING) RESERVOIR PADA SUMUR FFS DI LAPANGAN PT PERTAMINA EP CEPU FIELD ZONA 11 Salhuteru, Ferinda F; Subekti, Henk; Pelasula, Berthy
Journal Mechanical Engineering Vol. 3 No. 1 (2025): APRIL
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i1.3304

Abstract

As time goes by, FFS well production has decreased. This then became the background for implementing matrix-type acidification stimulation measures in the relevant fields. The acid used in FFS wells is 15% HCl and 6% HF. Significantly, this acidification process has 3 stages that need to be applied, namely, preflush, mainflush, and postflush. After this stimulation, it is estimated that there will be an increase of 26.5% with an oil price of 50 USD per bbl. After evaluation, it seems clear that there has been an increase in the production rate considering that the two compounds have reacted on a scale as seen in the increase in Q price in the FFS tang well, from 147 BOPD to 200 BOPD. From an economic perspective, we can also see efficiency in the use of equipment because it minimizes many aspects that need to be changed, in other words the production rate increases only with basic capital for certain chemicals. From the evaluation carried out, economic indicators can also be seen which make this research much more economical compared to previous research, where the FFS Well has a gross profit (Gross Revenue) of 8316000 USD. Meanwhile, the net profit obtained reached 3992000 USD. The NPV value with a discount of 11.87% is 477.58 USD, with an IRR of 33,79693377% and a POT of approximately 4.48 years. Keywords: Production rate, FFS well, scale, matrix, acidizing.
Analysis of the Effect of Paint Adhesion and Hardness on the Car Body Painting Process by Varying the Percentage of Paint Mixture Nanulaitta, Nevada J.M; Huka, Graciadiana I; Demmatacco, F; Pelasula, Berthy
Journal Mechanical Engineering Vol. 3 No. 1 (2025): APRIL
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i1.3351

Abstract

This study aims to analyze the effect of varying paint and thinner mixtures and the number of coats applied on the adhesion and hardness of car paint. The research method used was experimental, varying the paint:thinner ratio (100:110, 100:120, 100:130, and 100:140) and the number of coats applied (2 and 3). Adhesion testing was performed using a Cross-Cut Adhesion Tester, while hardness testing was performed using a Shore D Durometer. The results showed that a paint:thinner ratio of 100:130 provided optimal results for both tested parameters. In the adhesion test, the 100:130 ratio achieved level 5B (best) with no paint peeling, while in the hardness test, it reached the highest value of 88.77 HD. Excessive addition of thinner (ratio 100:140) resulted in a decrease in quality, with adhesion decreasing to level 3B and hardness dropping to 83.3 HD. Variations in the number of coats showed that using two coats provided more consistent results than three coats, especially in terms of adhesion. This study concluded that an optimal balance between paint and thinner is crucial for achieving good paint quality, with a 100:130 ratio providing the best results for automotive body painting applications. Keywords: Automotive Body Painting, Paint Adhesion, Paint Hardness, Paint-Thinner Mixture Variations, Paint Coating
A APLIKASI PENDAFTARAN UJI KOMPETENSI PADA LEMBAGA SERTIFIKASI PROFESI P1 POLITEKNIK NEGERI AMBON BERBASIS WEB Dahoklory, Melda; Salamoni , Thenny Daus; Pelasula, Berthy; Pormes, Ludwina; Molle, Marchia
JURNAL SIMETRIK Vol 13 No 2 (2023)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v13i2.1899

Abstract

Lembaga Sertifikasi Profesi (LSP) adalah lembaga pelaksana kegiatan sertifikasi profesi yang memperoleh lisensi dari Badan Nasional Sertifikasi Profesi (BNSP). LSP P1 Politeknik Negeri Ambon telah beberapa kali melaksanakan uji kompetensi kepada mahasiswa semester akhir di Politeknik Negeri Ambon dengan pemilihan skema sesuai dengan jurusan masing-masing. Namun dalam pelaksanaannya sering kali mengalami masalah administrasi yaitu tercecernya berkas pendaftaran dari mahasisa/calon asesi, waktu yang tidak efisien karena harus datang ke lokasi sehingga dilakukan pengembangan aplikasi pendaftaran uji Kompetensi yang bertujuan untuk merancang dan membangun aplikasi pendaftaran serta penjadwalan kepada mahasiswa yang ingin melakukan uji kompetensi sehingga mempermudah proses penerimaan informasi, pendaftaran hingga penjadwalan. Aplikasi Pendaftaran Uji Komepetensi berbasis web ini merupakan solusi untuk mahasiswa yang ingin  melihat informasi serta mendaftarkan diri sebagai asesi yang selanjutnya dijadwalkan untuk mengikuti ujian kompetensi. Aplikasi ini dikembangkan dengan menggunakan metode Waterfall. Aplikasi yang dibangun menggunakan bahasa pemrograman PHP dengan framework Codeigniter 3, Boostrap versi 4, dan Javascript pada software Sublime Text 3. Sistem pada aplikasi ini menyediakan website untuk melihat informasi terkait LSP P1 Politeknik Negeri Ambon, yaitu: profil LSP, skema, asesor, TUK, informasi dan kontak. Mahasiswa juga dapat mendaftarkan diri sebagai asesi dengan melakukan registrasi yang akan dikonfirmasi oleh administrator. Setelah itu, asesi dapat melakukan pendaftaran sertifikasi. Administrator akan mengelola jadwal sertifikasi yang dapat diakses oleh asesor dan asesi. Sistem dilengkapi dengan panduan sehingga dapat diakses dengan mudah. Hasil dari penelitian ini mempermudah pihak LSP, Asesi, dan Asesor dalam melakukan pendaftaran dan penjadwalan.
Co-Authors Dahoklory, Melda Demmatacco, F Edison Effendi Huka, Graciadiana I Leatemia, Josua M. Lekatompessy, Roy R. Leslie S Loppies Lilipaly, Eka Rahmat Mahayani Anthonio Putera Loppies, Leslie S. Lopulalan, Cynthia G. C. Lopulalan, Cynthia Gracia C Mailoa, M. Mailoa, Meitycofrida Mairuhu, Dedy Malakauseya, Jeffrie Molle, Marchia Nanulaitta, Nevada J.M Nanulaitta, Nevada Mario Nevada M.J. Nanulaitta Patty, Alexander A. Pormes, Ludwina Salamoni , Thenny Daus Salhuteru, Ferinda F Sapulette, Alvian setiawan, Arun Subekti, Henk Suparman, Widianti Tuny, Samuel M. J. S. Wattimena, Seftnah J Waworundeng, Tierza Yulia Welem Waileruny, Welem