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All Journal Automotive Experiences JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality
Yohanes Sibagariang
Universitas Quality
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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 1 
Effect Methanol, Ethanol, Butanol on the Emissions Characteristics of Gasoline Engine Syarifudin Syarifudin; Firman Lukman Sanjaya; Faqih Fatkhurrozak; M. Khumaidi Usman; Yohanes Sibagariang; Hasan Köten
Automotive Experiences Vol 4 No 2 (2021)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.751 KB) | DOI: 10.31603/ae.4641

Abstract

The increasing volume of motorized vehicles leads to an increase in dependence on fossil fuels and an increase in air pollution. The problem can be reduced by utilizing renewable alcohol fuels such as methanol, ethanol, and butanol. The high number of octane and oxygen content is the main reason. Therefore, this study aims to observe the exhaust emissions of the 160 cc gasoline engine with a mixture of methanol, ethanol, and butanol. The percentage of alcohol used is 0 % to 30 % by volume. The test was carried out in 2000, 3000, and 4000 rpm. The results of the study explained that the use of methanol, ethanol, butanol in the fuel mixture was proven to reduce exhaust emissions. CO and HC emissions decreased as the percentage of alcohol in the fuel increased. The highest reduction in CO and HC emission in methanol blended fuel was 30 %, 94.55 % and 82.71 %, respectively. Meanwhile, CO2 emissions increased by 34.88 % at 2000 rpm engine speed. Based on this test, the addition of methanol to fuel can reduce exhaust emissions better than ethanol and butanol.
ANALISIS KUALITAS PELAYANAN PENUMPANG MODA TRANSPORTASI ANGKUTAN LAUT DI PELABUHAN BELAWAN MEDAN PROVINSI SUMATERA UTARA Parada Afkiki Saputra; Yohanes Sibagariang
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 4, No 2 (2020): VOL 4 NO 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v4i2.471

Abstract

Terminal Penumpang Bandar  Deli Belawan yang terletak di  jalan Stasiun Belawan. Terminal Penumpang  Bandar Deli Belawan merupakan pintu masuk area Sumatera dan sekaligus menjadi terminal terbesar ketiga di Indonesia setelah Jakarta dan Surabaya. Pelabuhan Belawan adalah Pelabuhan yang terletak di kota Medan, Sumatera Utara, Indonesia dan merupakan Pelabuhan terpenting di pulau Sumatera Utara. Pelabuhan Belawan merupakan sebuah pelabuhan dengan tingkat kelas utama yang bernaung di bawah PT Pelabuhan Indonesia I (Pelindo 1).  Pelabuhan Belawan adalah salah satu Pelabuhan di Indonesia yang memiliki peran yang sangat penting dalam kegiatan arus barang baik itu impor maupun ekspor di wilayah pantai timur Indonesia yang berada di arus lalu lintas selat malaka yang sangat aktif dalam perdagangan internasional. Pelabuhan Belawan berada di dalam wilayah Kota Madya Medan yang teletak lebih kurang 27 KM dari pusat kota. Informasi dari penumpang pengguna jasa terminal penumpang bandar deli belawan diperoleh dengan menggunakan kuesioner yang disusun sesuai dengan kebutuhan. Hal ini bertujuan agar hasil atau data yang diperoleh relevan dan sesuai dengan tujuan penelitian.Persepsi pengguna jasa Terminal Penumpang Bandar Deli Belawan berdasarkan nilai indeks kepuasan rata-rata terhadap 8 (delapan) faktor pelayanan Terminal Penumpang Bandar Deli Belawan dengan interpretasi nilai Customer Satification Index, menunjukkan pelayanan yang diberikan oleh pengelola Terminal Penumpang Bandar Deli Belawan cukup baik. Hasil penelitian diperoleh nilai indeks kepuasan rata-rata pengguna jasa di Terminal Penumpang  Bandar Deli Belawan terhadap 8 (delapan) faktor pelayanan sebesar 68,26  persen masuk kriteria cukup puas. Faktor fasilitas pendukung di ruang tunggu pelabuhan dan faktor informasi jadwal kapal termasuk salah satu yang cukup mendapatkan nilai baik. Namun pengguna jasa pelabuhan merasa kurang puas terhadap Faktor Ketersedian fasilitas parkir kendaraan masih butuh untuk dibenahi, faktor keamanan di lokasi terminal perlu dibenahi kembali. Sedangkan untuk Fasilitas Penunjuk Arah atau penunjuk jalan menuju lokasi terminal penumpang Bandar Deli Belawan masuk kriteria kurang puas dan menjadi prioritas utama untuk ditingkatkan kinerjanya
KAJIAN TEKNIS PENGGUNAAN UJI PDA (Pile Driven Analysis) PADA TIANG PONDASI Yohanes Sibagariang; Valentana Tarigan; Budi Florianta Tarigan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 2 (2021): Vol 5 No. 2 Tahun 2021
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i2.635

Abstract

Foundation work is an initial job that is usually done by all engineers in the construction of structures. Beginning with a soil investigation survey, then identification of the type and strength of the soil is carried out to determine the type of foundation that is suitable for the structure. In planning the foundation in building construction, it is necessary to investigate the soil parameters used in the calculation of the bearing capacity of the soil. The bearing capacity of the soil is very influential on the type and dimensions of the foundation, especially regarding the load carried by the foundation to be planned. A foundation is part of an engineering system that transmits the load supported by the foundation and its own weight to and into the soil and rock that lies beneath it. The resulting soil stresses except at the soil surface are in addition to the loads already present in the soil mass from its own weight. The borepile foundation made was 181 piles and the tested piles were 3 piles or 3/181 = 1.7%. The weight of the hammer used should be = ultimate bearing capacity *1% = 244.45 x 1% = 2.5 tons. While the weight of the hammer used in the field is 2.5 tons, meaning that it is sufficient. Hammer fall height = 1 – 1.2 m, so the hammer impact energy efficiency is 3.3-18%. For hammer impact energy efficiency for B-3 piles of 3.3% is considered inadequate.
ANALISIS DRAINASE DI DAERAH RAWAN BANJIR DAN DAMPAKNYA DI KECAMATAN MEDAN BARU KOTA MEDAN Yohanes Sibagariang; Parada Afkiki Eko Saputra
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 1 (2021): VOL 5 NO 1
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i1.538

Abstract

Kondisi drainase primer dan sekunder yang berada di Kawasan Medan (Jl Dr Mansyur – Pd. Bulan) sebagian dari saluran yang ada tidak lagi sesuai dengan fungsinya, dimensi penampang yang tidak beraturan, kurangnya perawatan maupun sistem pengaliran dan pembuangan yang tidak sesuai lagi dengan lingkungan. Mengingat begitu banyaknya kerugian yang ditimbulkan oleh banjir atau genangan, maka perlu direncanakan dengan cermat penanganan kelebihan air pada daerah tersebut, hal ini merupakan alasan mendasar untuk menganalisis kapasitas dan sistem drainase pada kawasan Medan Baru. Adapun lokasi yang diambil pada kawasan Drainase Medan Baru Kota Medan yang dipusatkan di Kecamatan Medan Baru dikarenakan di wilayah ini rawan terjadi genangan. Data mengenai curah hujan harian maksimum wilayah kecamatan Medan Baru didapat melalui Stasiun Klimatologi Sampali Medan. Dengan luas area genangan sebesar 1,46 km² = 146 Ha apakah masih mencukupi untuk mengalirkan serta membuang air yang berasal dari daerah tangkapan air tersebut disepanjang drainase primer dan sekunder pada saat banjir (curah hujan tinggi). Berdasarkan hasil analisa hidrologi dan uji sebaran distribusi, digunakan distribusi Log Person type III sehingga di dapat intensitas curah hujan maksimum (I maks)= 14,644 mm/jam, debit banjir rencana maksimum (Q)= 5,646 m³/det dan waktu konsentrasi (tc)= 1,087 jam. Dari hasil Q analisis rancangan dan Q analisis kapasitas saluran di atas dibuat perbandingan hasil perhitungan untuk mengetahui kondisi drainase primer kawasan Medan Baru dari analisa didapat Drainase Primer sebesar 1,7188 m3/det pada Q Eksisting Saluran. Untuk Q Rancangan didapat sebesar 0,5646 m3/det pada kondisi 10 tahun.
ANALISIS DAYA DUKUNG TANAH PADA PEMBANGUNAN JEMBATAN LAE MARSABAN DI SIDIKALANG KABUPATEN DAIRI (STUDI KASUS) Yohanes Sibagariang; Esron Parulian Samosir
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 1 (2019): Vol 3 No 1
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i1.165

Abstract

In planning the lower structure data is needed regarding the characteristics of the soil and the structural loads acting on it. The research location is on a bridge located in Sidikalang, Dairi Regency, North Sumatra, which is called the Lae Marsaban Bridge on the Sumbul Pegagan Section - Parikki - Pangiringan Link. 117 STA. 143 + 000 in Dairi District. Examination of soil type is carried out visually to determine the value of carrying capacity of the soil. According to observations at the location that the condition of the soil was very hard and dense. Based on the results of a review of the Lae Marsaban Bridge Project, its carrying capacity has met the requirements based on the results of the sondir carried out. The foundation used is a sump foundation with a diameter of 2.5 meters and a depth of 8.4 meters, where the depth of hard soil is at 8.4 m. According to researchers, the implementation of the bridge is considered too excessive in terms of economic aspects. For this reason, more detailed and comprehensive research follow-up is needed.
KAJIAN EKSPERIMENTAL KUAT TARIK ANGKUR DENGAN VARIASI JARAK Yohanes Sibagariang
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 4, No 1 (2020): VOL 4 NO 1
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v4i1.353

Abstract

The development of technology in civil engineering building construction is increasingly helping engineers conduct better engineering studies. The development of technology has developed in terms of its construction techniques. The development of structural reinforcement systems has also progressed with the existence of inventions such as chemical anchor which is one of the inventions which is now widely used in reinforcing concrete structures. The time and cost of using this method is certainly more efficient, especially in the matter of the transfer of building functions. That is, if the building which was originally three floors can be raised to five floors, using a chemical anchor system. This means that the structure can be strengthened, it does not need to be destroyed. The researcher conducted an experimental study to obtain anchor tensile strength values in several variations in depth diameter, anchor distance and edge distance in order to bring up the pre-existing anchor pull as a guide material for the use of more appropriate anchor in construction buildings as needed. The purpose of this study was to determine differences in tensile loads M10 and M12 based on each concrete anchor distance and to the edge of the concrete using the quality f'c 16.26 MPa. The method used is qualitative research by conducting experiments in the Concrete Civil Engineering Laboratory of Quality University. This research is expected to be able to assist construction players in choosing the design of the anchor specifications for the needs of most precise construction buildings, and can also be useful in any construction sector that requires in controlling the quality of the anchor.
Analisis Struktur Bagian Atas (Upper Structure) dalam Ilmu Konstruksi Bangunan Studi kasus : Pekerjaan Tiang Kolom Pada Proyek Pembangunan Gedung Serbaguna GBKP Marendal - Mekatani Kabupaten Deli Serdang. Ronald Rezeki Tarigan; Yohanes Sibagariang
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 2 (2021): Vol 5 No. 2 Tahun 2021
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i2.585

Abstract

Column in principle is a rigid frame system which in case of loading will be accepted by all systems and jointly support each other. The term column is used in civil engineering to define a building construction that functions as a support for the building that accepts the load and transmits the load of the building in all directions with a strong enough carrying capacity. The building column is also a compressive element that supports / holds the beam + floor that carries the loads on the floor. So this column is very meaningful for the structure. If the column collapses, the whole building collapses. Coulom, Structure and Civil  Building Contruction.
Co-Authors Budi Florianta Tarigan Esron Parulian Samosir Faqih Fatkhurrozak Firman Lukman Sanjaya Hasan Köten M. Khumaidi Usman Ronald Rezeki Tarigan Syarifudin Syarifudin Valentana Tarigan