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All Journal Traksi : Majalah Ilmiah Teknik Mesin Rekayasa Mesin JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) OPERATION EXCELLENCE: Journal of Applied Industrial Engineering Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi G-Tech : Jurnal Teknologi Terapan Motor Bakar : Jurnal Teknik Mesin JURNAL PENELITIAN PENDIDIKAN BAHASA DAN SASTRA Jurnal Instrumentasi Jurnal VORTEKS International Journal of Research in Vocational Studies (IJRVOCAS) MACHINERY: Jurnal Teknologi Terapan Jurnal Derma Pengabdian Dosen Perguruan Tinggi (Jurnal DEPUTI) JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Abdimas Indonesian Journal Prioritas : Jurnal Pengabdian Kepada Masyarakat International Journal of Economics (IJEC) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat Impression : Jurnal Teknologi dan Informasi JRTI (Jurnal Riset Tindakan Indonesia)
Siregar, Zufri Hasrudy
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Al Azhar Medan
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Business Development Strategy With Swot and QSPM Methods (Case Study: Kampung Kopi Banaran) Rida, Rizkha; Sanco Simanullang; Donni Syahrial; Zufri Hasrudy Siregar
International Journal of Economics (IJEC) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijec.v5i1.1723

Abstract

Kampoeng Kopi Banaran is one of the trademarks that has been established since 2003 in Bawen, Central Java, Indonesia. Kampoeng Kopi Banaran itself houses several business lines under it such as Banaran Sky View Restaurat and Banaran Coffee Shop. Banaran Coffee Shop is one of the business units of Kampoeng Kopi Banaran which has been established since 2003 until now. To achieve this desire, of course, the Kampoeng Kopi Banaran must understand the right strategy so that the business carried out can be well accepted in the market. This research uses three interrelated data processing methods, namely the IFE and EFE matrices, IE matrices, SWOT matrices and QSPM matrices. The IFE and EFE matrices are used to analyze internal and external factors, the SWOT and IE matrices are used to determine alternative development strategies for Kampoeng Kopi Banaran and the QSPM method is used to determine the priority of the Kampoeng Kopi Banaran strategy. The Strengths-Opportunities strategy, which involves using strengths to seize opportunities through different approaches, is the best company development plan for Kampoeng Kopi Banaran. a. Support from Influencers b. Make use of social media and produce engaging and pertinent material for customers. The Integration of methods create an objective and measurable strategies successfully.
Penggunaan bor mesin dengan sistem kontrol elektropnumatik guna peningkatan efisiensi kerja di industri Muammar Alfin Sagala; Zufri Hasrudy Siregar; Edy Syahputra Saragih; Mawardi Mawardi; Andri Ramadhan
JRTI (Jurnal Riset Tindakan Indonesia) Vol. 10 No. 1 (2025): JRTI (Jurnal Riset Tindakan Indonesia)
Publisher : IICET (Indonesian Institute for Counseling, Education and Therapy)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/30036242000

Abstract

Tujuan penelitian ini yaitu menganalisis pengaruh variasi putaran terhadap laju pengeboran pada mesin bor dengan kontrol elektropneumatik dan mengkaji pengaruh alir udara terhadap laju pengeboran pada sistem yang sama. Metode yang digunakan dalam penelitian ini yaitu eksperimental dan analisis pengaruh kecepatan mesin terhadap debit udara dan waktu rata-rata, dimana alat yang digunakan dalam penelitian ini yaitu mesin gergaji dan las listrik dengan bahan adalah plat besi galvanis dengan tebal 4 mm. Keterbaruan penelitian ini yaitu mencari pengaruh kecepatan, waktu dan debit udara dalam aplikasi mesin bor, hasil yang didapt dalam penelitian ini yaitu pada saat pengeboran pada variasi putaran (1 putaran, 2,5 putaran, 4 putaran, 5,5 putaran, 7 putaran, 8,5 putaran) diperoleh waktu masing-masing 4,27 dtk, 2,52 dtk, 1,64 dtk, 1,54 dtk, 0,82 dtk, 0,75 dtk dan semakin besar variasi putaran (8,5 putaran) yang dipakai maka semakin tinggi kecepatannya (0,0466 m/dtk) dan semakin besar debit udara (7,272 ltr/mnt) yang digunakan.
Analisis Pengaruh Underpass Gatot Subroto Terhadap Kemacetan Studi Kasus Persimpangan Jl. Gatot Subroto – Jl. Gagak Hitam Di Kota Medan Arif Abdillah, Muhammad; Abdi Ridha, Muhammad; Juwita Nasution, Adinda; Petrus H Simorangkir, Simon; Hasrudy Siregar, Zufri
Impression : Jurnal Teknologi dan Informasi Vol. 5 No. 1 (2026): Maret 2026
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/jti.v5i1.1453

Abstract

Permasalahan kemacetan lalu lintas di Kota Medan semakin meningkat seiring dengan pertumbuhan jumlah kendaraan bermotor, khususnya pada persimpangan Jalan Gatot Subroto dengan Jalan Gagak Hitam/Ring Road. Penelitian ini bertujuan untuk menganalisis efektivitas pembangunan underpass dalam mengurangi kemacetan serta meningkatkan kinerja lalu lintas di kawasan tersebut. Metode yang digunakan adalah Before–After Study (sebelum–sesudah) dengan pendekatan kuantitatif berdasarkan pedoman Direktorat Jenderal Bina Marga (MKJI 1997). Data yang dianalisis merupakan data primer hasil survei lalu lintas pada jam puncak sore (16.00–19.00), meliputi volume kendaraan, Lalu Lintas Harian Rata-rata (LHR), derajat kejenuhan (DS), dan tingkat pelayanan jalan (LOS). Data sebelum dan sesudah pembangunan underpass kemudian dibandingkan untuk mengetahui perubahan kinerja lalu lintas. Hasil penelitian menunjukkan bahwa pembangunan underpass memberikan dampak positif terhadap kelancaran lalu lintas, yang ditandai dengan penurunan nilai LHR serta membaiknya derajat kejenuhan dan tingkat pelayanan jalan. Dengan demikian, underpass dapat menjadi solusi efektif dalam mengurangi kemacetan di kawasan perkotaan. Traffic congestion in the city of Medan has been increasing in tandem with the growing number of motor vehicles, particularly at the intersection of Gatot Subroto Street and Gagak Hitam Street/Ring Road. This study aims to analyze the effectiveness of constructing an underpass in reducing congestion and improving traffic performance in that area. The method used is a Before–After Study with a quantitative approach based on the guidelines of the Directorate General of Highways (MKJI 1997). The analyzed data consists of primary data from traffic surveys conducted during the evening peak hours (4:00 PM–7:00 PM), including vehicle volume, Average Daily Traffic (ADT), degree of saturation (DS), and Level of Service (LOS). Pre- and post-underpass construction data were then compared to determine changes in traffic performance. The results of the study indicate that the construction of the underpass has a positive impact on traffic flow, as evidenced by a decrease in ADT and improvements in the degree of saturation and level of service. Thus, underpasses can serve as an effective solution for reducing traffic congestion in urban areas.
Validation of Experimental Study and SimulationOTEC Power Plant using Shell-Tube Heat Exchanger Materials with Copper, Tin, and Working Fluid Ammonia Mawardi, Mawardi; Siregar, Zufri Hasrudy; Nugraha, Yoga Tri; Rida, Rizkha; Fahri , Tengku Muhammad; Irwanto, Muhammad
Jurnal Rekayasa Mesin Vol. 17 No. 1 (2026)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v17i1.2049

Abstract

The results of experimental research on marine thermal power plants using a shell and tube heat exchanger made of copper-tin (Cu-Sn) alloy are the main focus of this study. This study uses a heat exchanger Scale Model measuring 60 mm wide x 1 meter long. The system operated using a closed cycle and Organic Rankin cycle. A simulation study has been carried out using Ansys CFD software to model new heat exchangers, namely models A and B. The interaction between ammonia and hot water produces thermodynamic values in the form of an evaporator outlet temperature of 28°C in models A and B 260C. The weakness of model B is that the turbulent flow is divided into left and right sides so that heat loss occurs in the flow corner area. The seawater inlet temperature of 29°C can heat the working fluid from the ammonia flow inlet from 5°C to 28°C, resulting in saturated steam reaching 5-6 bar.
Co-Authors Abdi Ridha, Muhammad Abdul Latif S Acim Maulana Adi Widarma Adinda Juwita Nasution Ainul Izzah Alhadi, Rafli Andre Effendi Anita Christine Sembiring Apollo Apollo Ari Beni Santoso Arif Abdillah, Muhammad Asmara Sari Nasution Aziz Ahmadi Syam Bin Jusoh, Muzammil Dedi Sarwedi Dermawan Hutagaol, Dermawan Diana Suita Harahap Donni Syahrial Edy Syahputra Saragih Effendi, Andre Eva Vivi Aniceta Situmorang Fahri , Tengku Muhammad Fathur Rahman Bandio Fazri, Muhammad Feri Wahyudi Hapzi Ali Harahap, Uun Novalia Husni Thamrin Ikhwan, Rosendra Ilmi Ilmi, Ilmi Indra Gunawan Purba Indriyani Indriyani Indriyani Indriyani Irwanto, Muhammad Jaka Tri Hadiyatna Jarnawi Hadi Saputra Tanjung Jayawarsa, A.A. Ketut Jeki Armando Simanjorang Jufrizal Jufrizal Mahadi Sihombing, Panagian Margie Subahagia Ningsih Marqie Subahaqia Ningsih Masdania Zurairah Mawardi Mawardi Mawardi Mawardi Mawardi Moraida Hasanah Muammar Alfin Sagala Muhammad Andika, Muhammad Muhammad Dendy Agusdiandy Muhammad Irwansyah, Muhammad Muhammad Yasir Nasution, Arif Fadillah Ningsih, Margie Subahagia Ningsih, Marqie Subahaqia Nurdiana Nurdiana Nurdiana Pedro Da Silva Petrus H Simorangkir, Simon Prinsi Rigitta Prinsi Rigitta Prinsi Rigitta Putra, Bintang Kelana Raden Mohamad Herdian Bhakti Raja Imran Rasidi Sitorus Ramadhan, Andri Rambe, Fajar Noer Refiza Refiza Refiza, Refiza Riana Puspita Riana Puspita, Riana Rida, Rizkha Rigitta , Prinsi Rigitta, Prinsi Rini Halila Nasution Rini Halila Nasution Roswani Siregar Roswani Siregar Sagala, Muammar Alfin Saidan Sany Lubis Saktisahdan, T. Jukdin Saktisahdan, Tengku Jukdin San Lilandana Siregar Sanco Simanullang Saragih, Edy Syahputra Silaban, Donni Simamora, Junjungan Simanullang, Irwan Prasetya Simon Petrus Simorangkir Simorangkir, Simon Petrus Siregar, Masdania Zurairah Siregar, Roswani Siregar, San Lilandana Situmorang, Eva Vivi Aniceta Soaloon, Humala Raja Suherman, Suherman Suita, Diana Sukarsih Syafputra, Nanda Syahputra, Muhammad Novrin Rizky T. Jukdin Saktisahdan Tengku Jukdin Saktisahdan Tri Hadiyatna, Jaka Trisilo, Muji Uun Novalia Harahap Uun Novalia Harahap Uun Novalia Harahap Yetti Meuthia Hasibuan Yoga Tri Nugraha Yudi Daeng Polewangi Zurairah, Masdania