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Engkos Koswara
Universitas Majalengka
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THE TORQUE TEST SPECIMENS ANALYSIS USING FINITE ELEMENT ANALYSIS Slamet Riyadi; Tia Setiawan; Engkos Koswara
Jurnal Mekanika dan Manufaktur Vol 1 No 2 (2022)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.671 KB)

Abstract

The industrial component of industrial equipment is required to have good quality. The elementsor components of a tool must be light but have strong and corrosion-resistant alloys. Testing ofthe materials to be used must be appropriate and in accordance with the needs. There are severalways, one of which is by using a torque testing machine and Finite Element Analysis (FEA). FiniteElement Method (FEM) or commonly called Finite Element Analysis (FEA), is a numericalprocedure that can be used to solve certain engineering problems. Modeling torsion test objectsusing the FEM with a moment 598.0635 N mm, - 598.0635 N mm with respect to vector Xcounterclockwise. The material used is ASTM A 36 with a mass of 0.0163569 kg and a volume of2083.94 mm^3, torsion test analysis using finite element-based software. Based on thesimulation results, it can be seen that the largest stress (maximum stress) occurs in the XZ vectorwith a value of 10.4783 MPa, while the smallest stress (minimum stress) occurs towards the YZvector with a value of 0.15986 MPa. The largest strain (maximum strain) occurred in vector XZwith a value of 0.000068123 ul, while the smallest strain (minimum strain) occurred in vector XXwith a value of 0.00000107672 ul. The safety factor obtained is 0.71, meaning that the value isless than equal to 1 which indicates that the test object is unable to accept the given load.
COMMISIONING AND FAT HVAC FOR OFFSHORE ON THE KLA FLOW STATION Yusup Firdaus; Engkos Koswara
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

HVAC stands for Heating Ventilation Air Conditioning, in the industrial world it is very necessary to condition a room according to its needs, it can be used to regulate a room or freeze a product, the selection of HVAC materials for Offshore is very important so that the unit lasts a long time and does not rust easily. The importance of selecting materials that are in accordance with the provisions in terms of safety, function and quality, materials that are easy to obtain, sizes according to calculations, aesthetics, and materials that are not easy to rust. commissioning is done because to determine the quality and function of the HVAC unit whether it is in accordance with the design, function or calculation
ANALYSIS OF CUSTOMER SATISFACTION ON THE QUALITY OF PURPLE PATTOM CRUISER USING IMPORTANCE PERFORMANCE ANALYSIS (IPA) METHOD Whydiantoro Whydiantoro; Budiman Budiman; Engkos Koswara; Intan Kusumadewi
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

Following up on PKM on purple sweet potato crackers in Padahanten village and seeing the current very rapid development of the service business, with the growth of the service business in Indonesia this has resulted in higher competition, consumers are more selective in buying and choosing the products they need. Therefore, purple sweet potato chips must be able to meet consumer needs. Products that are able to win the competition with competitors need a strategy that can improve services and be able to compete effectively in this increasingly competitive market. Win the competition and keep the business alive, growing and getting as many customers as possible. This can be said to be successful if consumers are satisfied with the performance of a product or service provided by the entrepreneur. According to Lewis & Booms, in Service Management by Fandy Tjiptono (2016) Service quality is defined as a measure of how large the level of service that can be provided in accordance with the level of consumer expectations. In other words, the factors that affect the quality of service are the services expected by consumers, if the service exceeds what is expected by consumers, the quality of service can be said to be good (positive), and vice versa if the service is not in accordance with what is expected by consumers, it can be said that the quality of service is bad. (negative value) Quadrant analysis or Importance Performance Analysis (IPA) is a descriptive analysis technique introduced by John A. Martilla and John C. James (1977) cited by Tjiptono and Chandra (2016: 222-223). Importance Performance Analysis (IPA) is an analytical technique used to identify what important performance factors must be demonstrated by an organization in meeting the satisfaction of their service users (consumers). Therefore, it is necessary to conduct research on the analysis of consumer satisfaction on the quality of service in the marketing of purple sweet potato crackers by using the Importance Performance Analysis (IPA) method. and promotions. Through these (4P's) attributes, it will be known what influences consumers' desire to visit Padahanten purple sweet potato. The variables that are traced or researched are aspects of reliability (reliability), responsiveness (response), tangible (tangible), assurances (certainty), and empathy (empathy).
ANALYSIS OF STEAM POWER PLANT RANKINE CYCLE EFFICIENCY ANALYSIS AT PT. PG RAJAWALI II JATITUJUH UNIT Azi Zauhari; Engkos Koswara; Asep Rachmat
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

Rankine cycle efficiency and rankine cycle work process at PT. PG Rajawali II Jati Tujuh Unit Adding knowledge to students about Rankine cycle in steam power generation system. To determine efficiency based on operational data. To know and understand the process of the Rankine cycle. It can be a reference and input for PT, PG Rajawali II Unit Jati Tujuh to see its efficiency. Before going into the field, we must prepare our theory according to the title such as boiler, turbine, condenser, pump example. This is a direct observation of the conditions at PT. PG Rajawali II Unit Jati Tujuh. This step is carried out to find out information about the conditions in the field and the situation where the practical work is carried out. Fractional pressure will not occur in the boiler and condenser, if the working fluid flows through the various components of a simple steam power cycle without irreversibility, and the working fluid will flow through the components at constant pressure. Dry water vapor from the boiler enters the turbine and undergoes a process isentropic expansion of the energy stored in the water vapor is converted into motion energy in the turbine. The water vapor is converted into liquid again so that it can be reused in the cycle process, PT. PG Rajawali II Unit Jati Tujuh on October 11, 2020 had the highest efficiency of 25.20%. October 22, 2020 has the lowest efficiency, which is 22.99%. Before going to the work process of the Rankine cycle, we must really understand the components related to the Rankine cycle, starting from the boiler, turbine, condenser, and pump so that we can understand and understand what the Rankine cycle is. In processing data using a help system, namely with Microsoft Excel with engineering applications, we have to ask those who know better so that in processing data with Microsoft Excel it can be actually clear in calculating it to get the values of pressure and temperature and their efficiency.
Pelatihan Software Vectric Aspire untuk BUMDes Desa Heubeulisuk Engkos Koswara; Nasim; Whydiantoro; Budiman; Intan Kusumadewi
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1005.769 KB) | DOI: 10.31949/jb.v4i2.4832

Abstract

Salah satu kegiatan BUMDes Desa Heubeulisuk adalah kerajinan kayu berupa jam dinding dan semacamnya. Pembuatan kerajinan kayu ini masih dibuat dengan cara konvensional dengan bantuan gergaji ukir dan bor berukuran kecil. Akan tetapi, dengan peralatan yang sederhana BUMDes tersebut menerima banyak pesanan dari berbagai instansi hingga kalangan masyarakat. BUMDes Desa Heubeulisuk telah mengenal CNC router dengan program yang digunakan GCam Software dan kontroler menggunakan GRBL. Dengan software tersebut CNC router telah dapat digunakan dengan baik, akan tetapi karena softwarenya lebih sederhana maka produk yang dibuat terbatas. Untuk selanjutnya, pengenalan Software Vectric Aspire akan diberikan kepada BUMDes Desa Heubeulisuk. Dengan software Vectric Aspire, produk yang dihasilkan dapat lebih beragam hingga bentuk ukiran sketsa. Harapan dengan dikenalkannya software tersebut, pekerjaan BUMDes untuk pembuatan jam dinding kayu hingga ukiran sketsa dapat lebih terbantu. Tujuan dari penelitian ini adalah membantu proses pembuatan kerajinan kayu berupa jam dinding dan lain sebagainya hingga ukiran dalam material akrilik. Dengan software Vectric Aspire, produk gambar lebih komplek akan tetapi proses pembuatan model cukup mudah dilakukan
MODIFICATION OF THE DUST COLLECTOR TOOL ON A 3 AXIS CNC ROUTER MACHINE FOR WOOD WORKING Ahmad Yahya; Engkos Koswara; Asep Rachmat; Eidelweis Dewi Jannati
Jurnal Mekanika dan Manufaktur Vol 2 No 2 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jmm.v2i2.5306

Abstract

Based on the results of research in Majalengka Regency, it was found that there were 200 semi-finished wood processing secondary industries, spread over 26 sub-districts with the type of wood used being dominated by teak, mahogany, these types of wood are used for semi-finished materials in the form of frames, doors, windows, cabinets, sideboard and chairs. There is also production of wood that is native to Indonesia, namely wood carving. Wood carving has its own uniqueness because it is a human creation based on an aesthetic sense according to what the human himself wants. Wood carving works of art are usually created using sculpting techniques. The creation of works of wood carving with the arrangement of elements so that meaningful elements are formed and one must have creative sculpting skills to produce works that are good, attractive and have meaning and high aesthetic value as well as being useful in people's lives.
Upaya Peningkatan Akses dan Pemasaran Produk Tanaman Obat : Mendukung Keberlanjutan Ekonomi dan Kesejahteraan Keluarga Petani Ida Marina; Harun Sujadi; Sri Ayu Andayani; Engkos Koswara; Adi Oksifa Rahma Harti; Anis Nurul Fitria; Billy Adrian Fernanda; Karina Agisni Widyastuti; Muhamad Dendi Purwanto
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 4 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i4.6544

Abstract

Program Pemberdayaan Berbasis Masyarakat bertujuan memajukan ekonomi dan kesejahteraan petani melalui pengembangan produk tanaman obat. Metode yang diterapkan meliputi penyuluhan dan demonstrasi, melibatkan mitra utama (KWT Plamboyan dan warga Desa Kagok) dan mitra pendukung (Kepala Kelurahan, BPP, RW, RT, dan tokoh masyarakat). Koordinasi telah dilakukan dengan baik untuk jadwal, lokasi, dan narasumber kegiatan. Pengukuran awal tingkat pengetahuan mitra dilakukan melalui kuesioner dan diskusi berbentuk tanya jawab. Evaluasi fokus pada peningkatan pengetahuan, pengolahan, dan pemasaran. Hasil menunjukkan peningkatan pengetahuan masyarakat tentang tanaman obat, terutama dalam pengenalan jenis dan manfaat kesehatannya. Dalam pengolahan, produk berkualitas, nilai tambah, partisipasi masyarakat, dampak ekonomi positif, dan inovasi terlihat positif. Upaya pemasaran lokal berhasil meningkatkan penjualan, pertumbuhan, pangsa pasar, kesadaran merek, dan kesetiaan pelanggan. Monitoring dan evaluasi mengukur dampak dan keberhasilan program, menegaskan pentingnya tahap-tahap dalam mencapai tujuan.
EFISIENSI TURBIN UNIT 2 DAN 3 DI PT. INDONESIA POWER UNIT PEMBANGKIT DAN JASA PEMBANGKITAN (UPJP) KAMOJANG Alfian Esa Hidayat; Engkos Koswara
Seminar Nasional Teknologi dan Multidisiplin Ilmu (SEMNASTEKMU) Vol 1 No 1 (2021): SEMNASTEKMU
Publisher : Universitas Sains dan Teknologi Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/semnastekmu.v1i1.91

Abstract

ABSTRAK Indonesia Power UPJP Kamojang merupakan sebuah perusahaan pembangkit listrik tenaga panas bumi (PLTP) yang didirikan pada tanggal 3 oktober 1995 dan berlokasi di Desa Laksana Kecamatan Ibun Kabupaten Bandung. Perusahaan ini menggunakan uap panas bumi sebagai bahan penggerak turbin sehingga terjadi konversi energi dari energi kalor yang terkandung dalam uap menjadi energi kinetik. Untuk menganalisa dan menghitung efisiensi turbin, yaitu menentukan fraksi uap, entalpi, entropi, laju aliran, dan efisiensi pada turbin. Efisiensi turbin unit 2 dan 3 beroperasi mulai dari Februari 1988, dari data desain efisiensi turbin pada unit 2 dan 3 yaitu berada pada 89% sebagai patokan efektivitas yang paling baik. Rata-rata efektivitas kondensor pada tanggal 1-7 Desember 2016 unit 2 sebesar 75% dan pada unit 3 yaitu 74%. Jika di bandingkan dengan dengan desain awal beroperasinya, turbin mangalami penurunan kinerja, dilihat dari efisiensinya pada unit 2 turbin mengalami penurunan efisiensi sebesar 14%, dan unit 3 mengalami penurunan sebesar 15%, Kata Kunci : PLTP Kamojang, turbin, turbin uap, konversi energi, efisiensi.
Cakap Bermedia Sosial Sebagai Upaya Peningkatan Literasi Digital di Lingkungan Masyarakat Desa Prupuk Selatan Budiman Budiman; Whydiantoro; Engkos Koswara; Abdul Kholiq
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2024)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v5i1.7192

Abstract

Pada zaman yang serba canggih saat ini, internet merupakan produk teknologi komunikasi yang sangat fenomenal. Literasi digital merupakan upaya meminimalisir dampak buruk dari kegiatan ruang digital. Oleh karena itu, peningkatan penggunaan teknologi perlu diimbangi dengan literasi digital yang mumpuni agar masyarakat dapat memanfaatkan teknologi digital bijak dan tepat guna. Pengabdian terhadap masyarakat melalui program Kuliah Kerja Nyata (KKN) yang dilakukan secara mandiri merupakan salah satu kegiatan yang ditujukan untuk memberikan pemahaman lebih kepada masyarakat terkait Literasi Digital. Cakap bermedia digital adalah kemampuan menggunakan teknologi untuk berkomunikasi, berinteraksi, dan berpartisipasi dalam kehidupan . Meskipun lingkungan memiliki tantangan unik, tetap dapat memiliki manfaat besar dalam memajukan desa.= Literasi Digital ini sangat banyak manfaatnya karena masih banyak masyarakat yang belum melek terhadap media digital, tetapi dengan kegiatan ini masyarakat dapat memperoleh banyak informasi edukasi tentang pentingnya digital dalam segala bidang kehidupan, baik dalam segi agama, sosial dan budaya, dan lain sebagainya. Serta masyarakat dapat mahir dan cakap bermedia sosial/digital dengan semestinya.
Pelatihan Software Vectric Aspire untuk BUMDes Desa Heubeulisuk Engkos Koswara; Nasim; Whydiantoro; Budiman; Intan Kusumadewi
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i2.4832

Abstract

Salah satu kegiatan BUMDes Desa Heubeulisuk adalah kerajinan kayu berupa jam dinding dan semacamnya. Pembuatan kerajinan kayu ini masih dibuat dengan cara konvensional dengan bantuan gergaji ukir dan bor berukuran kecil. Akan tetapi, dengan peralatan yang sederhana BUMDes tersebut menerima banyak pesanan dari berbagai instansi hingga kalangan masyarakat. BUMDes Desa Heubeulisuk telah mengenal CNC router dengan program yang digunakan GCam Software dan kontroler menggunakan GRBL. Dengan software tersebut CNC router telah dapat digunakan dengan baik, akan tetapi karena softwarenya lebih sederhana maka produk yang dibuat terbatas. Untuk selanjutnya, pengenalan Software Vectric Aspire akan diberikan kepada BUMDes Desa Heubeulisuk. Dengan software Vectric Aspire, produk yang dihasilkan dapat lebih beragam hingga bentuk ukiran sketsa. Harapan dengan dikenalkannya software tersebut, pekerjaan BUMDes untuk pembuatan jam dinding kayu hingga ukiran sketsa dapat lebih terbantu. Tujuan dari penelitian ini adalah membantu proses pembuatan kerajinan kayu berupa jam dinding dan lain sebagainya hingga ukiran dalam material akrilik. Dengan software Vectric Aspire, produk gambar lebih komplek akan tetapi proses pembuatan model cukup mudah dilakukan
Co-Authors Abdul Kholiq Abdullah, Fatwa Muhammad Maulid Ade Bastian adi oksifa rahma harti Adiyanto Pratama, Sandy Aggy Panca Suwanda Agung Dwi Haryanto, Totok Agus Yuniawan Isyanto Ahmad Fudholi Ahmad Yahya Ahmad Yahya Alfian Esa Hidayat Amalia, Lidya Nur Andri Reynaldi Anis Nurul Fitria Ardi Mardiana Ariandoyo, Dodi Arief Rijaluddin Asep Rachmat, Asep Azi Zauhari Billy Adrian Fernanda Budiman Budiman Budiman Budiman Dede Abdurahman Dewi Jannati, Eidelwei Dewi Jannati, Eidelweis Dipa Subandi Dony Susandi Eidelweis Dewi Jannati Erni Sari Lumban Toruan Fadhlurrahman, Azhar Fadilah, Fadil Faqih, Reynanda Maulana Yusuf Febriyanto, Muhammad Rival Firdaus, Yusup Haris Budiman Harti, Adi Oksifa Rahma Harun Sujadi Hidayat, Adam Ida Ayu Putu Sri Widnyani Ida Marina Ida Marina, Ida Ii Supiandi Ilham Adhya Indriana, Kovertina Rakhmi Intan Kusumadewi ISMAIL, AGUS YADI Jujun Badrujaman Karina Agisni Widyastuti Kusumadewi, Intan Maman Sulaeman Mardina, Ardi Muhamad Dendi Purwanto Muhammad Rifki Muhammad Setiyo Surya Darma Nasim Nasim Nasim, Nasim Panca Suwanda, Aggy Rachmat, Asep Rif'an, Muhammad Riza M. Yunus Rohendi, Muhamad Ruyanto Ruyanto Ruyanto, Ruyanto Saepul Mahmud Sakhidin Sakhidin Saputra, Theo Chandra Setiawan, Tia Setyawan, Azis Budi Slamet Riyadi Slamet Riyadi Sri Ayu Andayani Subandi, Dipa Subhi, Ibnu Sumirat, Perly Tarsudin Tarsudin Tarsudin, Tarsudin Tia Setiawan Tsaqib Ilham Nur Wahidin, Dendi warandi , rofandi Rori Aditiar Warandi, Rofandi Rori Aditiar Whydiantoro Whydiantoro Whydiantoro Whydiantoro Whydiantoro, Whydiantoro Yayat Hendrayana, Yayat Yudi Samantha Yudi Samantha, Yudi Yusup Firdaus Zauhari, Azi