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PENJADWALAN PERAWATAN NITROGEN AIR COMPRESSOR MENGGUNAKAN METODE RELIABILITY AVAILABILITY DAN MAINTAINABILITY (RAM)
Get PDFThis research aims to increase the reliability and availability of the Nitrogen Air Compressor machine and determine the maintenance schedule for the Nitrogen Air Compressor machine. The method used in this research is the Reliability Availability and Maintainability (RAM) method to determine the level of Reliability Availability and Maintainability on Nitrogen Air Compressor machines to determine more optimal maintenance scheduling. The results of this research showed 4 defects in the Nitrogen Air Compressor units C and D components, namely (1) Filter Dryer (M 580-1) (C) produced a system reliability value of 82.47%, a system maintainability value of 83.00%, and Availability that has been carried out can produce an inherent availability value of 99.67% and an operational availability value of 99.92%. (2) Air Inlet Filter (6.4198.1) (C) produces a system reliability value of 81.31%, a system maintainability value of 83.87%, and Availability that has been carried out can produce an inherent availability value of 99.92% and operational availability value is 99.92%. (3) Oil Filter (6.3464.1) (D) and produces a system reliability value of 81.34%, system maintainability value of 85.49%, and the Availability that has been carried out can produce an inherent availability value of 99.93% and operational availability value is 99.93%. (4) Filter Dryer (M 580-1) (D) produces a system reliability value of 80.%, system maintainability value of 85.49%, and Availability that has been carried out can produce an inherent availability value of 99.93% and an operational availability of 99.93%. From these results it can be concluded that the RAM method can determine more optimal machine maintenance scheduling. Suggestions for companies are that they can implement scheduling using the RAM method
PENGARUH DAN SIMULASI SIMPANG JL. ABDULLAH DAENG SIRUA- JL. ADHYAKSA BARU DI KOTA MAKASSAR MENGGUNAKAN SOFTWARE PTV VISSIM 9.00
Get PDFIn this study to determine the effect and simulation of traffic engineering performance at the intersection of Jalan Abdullah Daeng Sirua Barat -Abdullah Daeng Sirua Timur -Adhyaksa Baru using the PTV VISSIM 9 software during the extension of the curfew during the Covid-19 pandemic and during the implementation of restrictions on community activities. (PPKM) level 4 (four). By using the field survey method for 5 working days with primary and secondary data collection then data processing with MKJI theory and simulated using PTV Vissim 9.00 software. From the results of the research, the intersection does not fulfill the capacity of the road due to the large volume of traffic that passes through the intersection. vehicle (noise)
KARAKTERISTIK FISIK RUMAH TINGGI SUWAWA DAN RUMAH BELELI TAUDA’A DI PROVINSI GORONTALO
Get PDFAbstract: Physical Characteristics of the Tall Suwawa House and the Bele Li Tauda'a House in Gorontalo Province.
This research aims to identify the physical characteristics of the Suwawa High House and the Bele Li Tauda'a House. The research method uses descriptive qualitative by means of a field survey which aims to explore and obtain facts and factual information about the condition of tall houses in the district. Suwawa district. Bone Bulango and Bale Li Tauda's house are in Kel. Pauwo district. Bone Bulango.. Field survey was carried out at the location in Kab. Bone Bolango and Gorontalo Regency in April – May 2023, starting with initial data collection followed by semi-structured interviews, field observations then structuring the data, as well as confirming the data with the reality in the field and the views of traditional leaders. The results of the research show that (1) that the physical characteristics of both are the same on the roof (2) the top part is triangular in shape with a second layer in the middle of the building roof. The conclusion from the research carried out is that the two buildings are still standing strong even though the buildings are no less than 100 years old because the shape of the facade is not influenced by other materials. The local purity of wood still dominates, which is a material chosen directly by local people and is maintained to this day
ANALISIS HIDROLIK PINTU AIR DANAU LIMBOTO
Get PDFPenelitian ini bertujuan untuk menganalisis kapasitas hidraulis dan efektivitas operasional pintu air di Danau Limboto dalam pengelolaan aliran air selama musim hujan dan kemarau. Metode yang digunakan meliputi pemodelan hidrolik, pengukuran debit dan kualitas air, serta analisis data historis. Hasil penelitian menunjukkan bahwa kapasitas hidraulis pintu air belum optimal, yang berisiko menyebabkan banjir saat musim hujan dan kekeringan di musim kemarau. Pengembangan skenario operasional adaptif, seperti pembukaan bertahap pada musim hujan dan penutupan parsial pada musim kemarau, diusulkan untuk meningkatkan pengelolaan air. Dampak positif dari pengaturan pintu air yang tepat mencakup pelestarian ekosistem dan peningkatan kesejahteraan masyarakat sekitar. Rekomendasi untuk peningkatan kapasitas infrastruktur dan pelatihan pengelola diharapkan dapat mendukung keberlanjutan Danau Limboto sebagai sumber daya air utama
KAJIAN EKSPERIMENTAL PENGARUH CAMPURAN ETANOL DAN PERTAMAX TERHADAP KONSUMSI BAHAN BAKAR MOTOR INJEKSI 125CC
Get PDFAbstract: Experimental Study of the Effect of a Mixture of Ethanol and Pertamax on Fuel Consumption of a 125cc Injection Motorcycle. Currently the need for petroleum is quite high. This is because transportation and industry still rely on petroleum as the main fuel. Ethanol has similar properties to Pertamax fuel which can be applied to every vehicle, especially two-wheeled vehicles. The aim of this research is to find out how the addition of ethanol to Pertamax fuel affects the amount of fuel consumed by injection motorbikes. The mixture percentages that will be tested are E10+P90, E20+P80, and E30+P70 respectively, and then the consumption results are compared with tests using pure Pertamax (E0+P100). The test results show that the use of Ethanol-Pertamax mixed fuel can be reduced when the percentage of the ethanol mixture is below 50%. Where the lowest fuel consumption is the E30+P70 mixture at 16.4% compared to pure Pertamax consumption
PEMODELAN GREEN PARKING YANG BERKELANJUTAN (STUDI KASUS KAMPUS 4 UNIVERSITAS NEGERI GORONTALO)
Get PDFAbstrak: Pemodelan Green Parking Yang Berkelanjutan ( Studi Kasus Kampus 4 Universitas Negeri Gorontalo). Sebagai kawasan terbuka pada umumnya area parkir didominasi area perkerasan yang akan dapat menghasilkan iklim mikro dan dampak pada lingkungan yang beragam. Menurut hasil penelitian Shapiro, J. et al. (2015) suhu di tempat parkir tradisional biasanya 20-40 derajat lebih tinggi dari daerah sekitarnya sehingga pada musim panas dapat menimbulkan efek pulau panas atau urban heat island yang membutuhkan energi yang lebih besar untuk mendinginkan bangunan di sekitarnya. Dengan luasnya area perkerasan pada umumnya ini akan juga dapat menyebabkan sangat sedikit sekali air hujan yang bisa diserap oleh tanah dan dengan cepat mengalir di atas perkerasan dengan mengambil polutan yang ada dan membawanya ke saluran pembuangan, dan bila tidak terdapat saluran pembuangan yang baik aliran air hujan ini bisa dengan cepat dapat menyebabkan banjir yang merusak infrastruktur yang ada. Tujuan penelitian ini untuk menganalisis kondisi ruang parkir di Kampus IV UNG Bone Bolango dan membuat pemodelan ruang parkir yang berwawasan lingkungan dan berkelanjutan. Metode yang digunakan adalah menggunakan metode kuantitatif (pengambilan data pengukuran di lapangan) dengan mengacu pada penelitian deskriptif. Metode kuantitatif yang digunakan berupa pendekatan dengan menggunakan alat ukur dan mengolah data hasil pengukuran tersebut ke dalam grafik dan dilakukan pengkajian untuk diterapkan pada pemodelan green parking pada lokasi studi. Hasil pengamatan, pengukuran dan analisis keadaan lingkungan setempat diterapkan pada model usulan desain green parking yang berkelanjutan yaitu pada penataan vegetasi, area perkerasan, area bioretensi dan pejalan kaki dengan mempertimbangkan karakter parkir berupa akumulasi jumlah parkir pada saat pengukuran dan prediksi jumlah pengguna pada sepuluh tahun ke depan dari penelitian yaitu tahun 2031.
Kata kunci: Pemodelan ; Green Parking; Berkelanjutan ; Kampus 4 Universitas Negeri Gorontalo
Abstract: Sustainable Green Parking Modeling (Case Study of Campus 4, State University of Gorontalo). As an open area, in general, the parking area is dominated by the pavement area which will be able to produce a microclimate and various environmental impacts. According to the research results of Shapiro, J. et al. (2015) the temperature in traditional parking lots is usually 20-40 degrees higher than the surrounding area so that in summer it can cause an urban heat island effect which requires more energy to cool the surrounding buildings. With the wide area of the pavement in general this will also be able to cause very little rainwater to be absorbed by the soil and quickly flow over the pavement by picking up the existing pollutants and bringing them to the sewers, and if there is no good drainage the rainwater flows this can quickly lead to flooding which destroys existing infrastructure. The purpose of this study was to analyze the condition of parking spaces at Campus IV UNG Bone Bolango and to model parking spaces that are environmentally sound and sustainable. The method used is to use quantitative methods (collection of measurement data in the field) with reference to descriptive research. The quantitative method used is in the form of an approach using a measuring instrument and processing the measurement data into a graph and an assessment is carried out to be applied to green parking modeling at the study location. The results of observations, measurements and analysis of local environmental conditions are applied to the proposed model of a sustainable green parking design, namely the arrangement of vegetation, pavement areas, bioretention areas and pedestrians by taking into account the parking characteristics in the form of accumulated parking numbers at the time of measurement and predictions of the number of users in the next ten years. ahead of the study namely the year 2031.
Keywords: Modeling ; Green Parking; Sustainable ; Campus 4, State University of Gorontal
ANALISIS BIAYA MANAJEMEN RISIKO PADA PROYEK PENGAMAN MUARA SUNGAI BOGOWONTO SISI TIMUR (KSN) YIA
Get PDFAbstrak: Analisis Biaya Manajemen Risiko Pada Proyek Pengaman Muara Sungai Bogowonto Sisi Timur (KSN) YIA. Analisis biaya manajemen risiko pada Proyek Pembangunan Pengaman Muara Sungai (jetty) merupakan hal yang penting dilakukan untuk penelitian. Bangunan pengaman sungai atau jetty sendiri memiliki bermacam-macam risiko proyek yang dapat menghambat proses kegiatan pada proyek serta mempengaruhi pencapaian proyek. Dampak dari risiko tersebut selain mempengaruhi biaya juga menimbulkan keterlambatan proyek. Berdasarakan permasalahan yang disebutkan diatas, tujuan dari penelitian ini untuk mengetahui risiko yang terjadi pada Proyek Pembangunan Pengaman Muara Sungai Bogowonto Sisi Timur (KSN) YIA serta menganalisis biaya dan mengetahui tindakan mitigasi risiko tersebut. Pada penelitian ini menggunakan metode wawancara sebagai pengumpul data. Sebagai analisis kuesioner menggunakan metode rata – rata (mean) dan untuk analisis biaya menggunakan Cost / Benefit Analysis (CBA) atau analisis biaya / manfaat. Hasil analisis kuesioner menggunakan metode rata-rata (mean) menunjukkan 5 risiko tinggi yang memerlukan mitigasi dan hasil analisis biaya memberikan rekomendasi 4 upaya tindak lanjut yang layak diterapkan dan 1 upaya tindak lanjut yang tidak layak diterapkan. Upaya tindak lanjut yang tidak layak tersebut dikarenakan biaya yang dikeluarkan antara nilai risiko terlalu besar dan biaya implementasi yang tinggi pula, alhasil risiko harus dimitigasi sejak awal.
Kata kunci: Manajemen Biaya Risiko; Rata-Rata; CBA
Abstract: Cost Analysis Of Risk Management In Security Projects East Side Of The Bogowonto River (Ksn) Yia. Analysis of risk management costs in the Estuary River Safety Development Project (jetty) is an important thing to do for research. The river or jetty safety building itself has various project risks that can hinder the process of project activities and affect project achievement. The Severity of these risks besides affecting costs also causes project delays. Based on the problems mentioned above, the purpose of this study is to determine the risks that occur in the East Side of the Bogowonto River Estuary Development Project (KSN) YIA and to cost analyze and know the risk mitigation measures. In this study using project data as data collectors. As a questionnaire analysis using the average method (mean) and for cost analysis using Cost / Benefit Analysis (CBA) or cost / benefit analysis. The results of the questionnaire analysis using the mean method show 5 high risks that require mitigation and the results of the cost analysis provide recommendations for 4 follow-up actions that are feasible and 1 follow-up that is not feasible. These follow-up efforts are not feasible because the costs incurred between the value of the risk are too large and the costs of implementation are also high, as a result the risk must be mitigated from the start.
Keyword: Cost Risk Management, Mean, CB
ANALISIS KEKERASAN SAMBUNGAN LAS MIG BAJA KARBON RENDAH DENGAN BERBAGAI VARIASI KAMPUH
Get PDFAlong with technological developments, the use of metals such as steel cannot be separated from the welding process. Where welded joints have advantages in the form of lightweight construction, able to withstand high loads, and are more economical. One of the factors that must be considered in producing a good welded joint is the weld camp. Welding camp are used to accommodate filler material on the metal, so that the determination of the type of camp is based on the needs of the construction being built. The purpose of this study was to analyze the hardness of low carbon steel MIG welded joints with various variations of camp and welding temperature. The test material used was ST 37 low carbon steel with a thickness of 6 mm and a width of 100 mm. Tests were carried out to compare the weld joint hardness values with the application of V, I, and K seams on each welding electric current of 130 A, 150 A, and 170 A. The test results showed that in all types of seams, the higher the welding electric current. Applied, the greater the hardness value of the welded joint obtained. The highest hardness value was obtained at a welding current of 170 A with a V camp of 89.8 N/mm2
ANALISIS KEBUTUHAN TENAGA KERJA MENGGUNAKAN METODE RESOURCES LEVELING PADA PEKERJAAN STRUKTUR BAWAH GEDUNG BERTINGKAT
Get PDFAbstrak: Analisis Kebutuhan Tenaga Kerja Menggunakan Metode Resources Leveling Pada Pekerjaan Struktur Bawah Gedung Bertingkat. Proyek konstruksi merupakan suatu kegiatan yang dilakukan dengan tujuan tertentu dan dibatasi oleh satuan waktu. Dalam pelaksanaannya setiap proyek konstruksi memiliki rencana penjadwalan yang harus diikuti. Keberhasilan rencana penjadwalan dipengaruhi oleh sumber daya, waktu, dan biaya. Pada umumnya kontraktor cenderung fokus pada optimalisasi waktu dan biaya, sehingga tidak jarang mengesampingkan sumber daya yang diperlukan, terutama dalam hal tenaga kerja. Dimana sumber daya tenaga kerja yang mengalami fluktuasi atau alokasinya tidak rata dapat menjadi penghambat dalam penyelesaian proyek. Berdasarkan hal tersebut, Resources Leveling menjadi penting dilakukan sebagai upaya untuk mengalokasikan pembagian tenaga kerja. Dari hasil analisis diketahui bahwa jumlah pekerja yang dibutuhkan untuk setiap pekerjaan bervariasi bergantung pada besarnya bobot pekerjaan, koefisien pekerja, serta durasi pelaksanaannya. Hasil penelitian menunjukkan bahwa pekerja yang digunakan dalam proyek mengalami overallocated resources atau tenaga kerja yang dibutuhkan melebihi tenaga kerja yang tersedia. Analisis Resources Leveling menjadikan manajemen tenaga kerja tersusun secara optimal. Resources Leveling membantu pelaksana untuk lebih memberdayakan pekerja yang ada sesuai dengan kebutuhan di lapangan. Selain itu, metode ini juga dapat memprediksi waktu penyelesaian proyek sehingga memudahkan pelaksana untuk membuat beberapa pilihan sebelum memutuskan pemerataan mana yang terbaik. Sebagai contoh pada tanggal 6 september kebutuhan pekerja sebelum leveling adalah 131 orang, setelah dilakukan leveling kebutuhan pekerja menjadi 70 orang. Hal tersebut menunjukkan bahwa terjadi disparitas atau selisih sebesar -87,14%. Lebih lanjut, perubahan alokasi tenaga kerja tersebut mengakibatkan adanya pergeseran waktu mulai pekerjaan, sehingga durasi total proyek yang seharusnya selesai dalam 76 hari berubah menjadi 88 hari atau lebih lambat 12 hari.
Kata kunci: Proyek; Tenaga Kerja; Perataan Sumber daya; Resources Leveling; Overallocated Resources.
Abstract: Analysis of Manpower Needs Using the Resources Leveling Method in the Work of the Lower Structure of Multi-storey Buildings. A construction project is an activity carried out with a specific purpose and is limited by a unit of time. In practice, every construction project has a scheduling plan that must be followed. The success of the scheduling plan is influenced by resources, time, and costs. In general, contractors tend to focus on optimizing time and costs, so it is not uncommon for them to neglect the resources needed, especially in terms of manpower. Where labor resources fluctuate or their allocation is uneven can become an obstacle in project completion. Based on this, Resources Leveling becomes important as an effort to allocate the division of labor. From the results of the analysis it is known that the number of workers needed for each job varies depending on the size of the work weight, the worker coefficient, and the duration of the implementation. The results of the study show that the workers used in the project experience overallocated resources or the required workforce exceeds the available workforce. Resources Leveling analysis makes workforce management optimally structured. Resources Leveling helps executors to better empower existing workers according to the needs in the field. In addition, this method can also predict project completion time, making it easier for implementers to make several choices before deciding which distribution is the best. For example, on September 6, the need for workers before leveling was 131 people, after leveling, the need for workers was 70 people. This shows that there is a disparity or difference of -87.14%. Furthermore, the change in labor allocation resulted in a shift in the start time of work, so that the total duration of the project which should have been completed in 76 days changed to 88 days or 12 days slower.
Keyword: Project; Labor; Resource Alignment; Resources Leveling; Overallocated Resources
ANALISIS FAKTOR SEBAGAI DAMPAK PANDEMI COVID-19 PADA PROYEK BENDUNGAN BENDO PONOROGO
Get PDFAbstrak: Analisis Faktor Sebagai Dampak Pandemi Covid-19 Pada Proyek Bendungan Bendo, Ponorogo. Penelitian ini bertujuan menganalisis dampak covid -19 pada proyek bendungan bendo Ponorogo dengan menggunakan metode principle component analysis (PCA), dimulai dengan penyusunan dan penyebaran kuesioner kepada 50 responden pekerja pada proyek bendungan bendo Ponorogo untuk kemudian di analisis principle component analysis (PCA). Berdasarkan hasil ranking analisis faktor terdapat 5 faktor dampak pandemi Covid-19 yang mempengaruhi proyek Bendungan Bendo, Ponorogo yaitu : adanya perubahan jam kerja, proyek terbengkalai karena PSBB, adanya pengurangan tenaga kerja, sulitnya transportasi bagi pekerja dan tukang ke lokasi proyek, dan keterlambatan pembayaran upah pekerja.Selanjutnya, faktor yang berpengaruh dominan terhadap proyek Bendungan Bendo, Ponorogo adalah adanya perubahan jam kerja dengan nilai loading factor sebesar 0,838. Kesimpulan yang diperoleh analisis faktor terbentuk 6 faktor dampak pandemi Covid-19 yang mempengaruhi proyek Bendungan Bendo, Ponorogo yaitu faktor 1 dinamakan faktor internal, faktor 2 dinamakan faktor ketidakpastian proyek, faktor 3 dinamakan faktor pembatasan wilayah (PSBB), faktor 4 dinamakan faktor sosial, faktor 5 dinamakan faktor proses order tertunda, dan faktor 6 dinamakan faktor komunikasi. Faktor internal merupakan faktor dampak Covid-19 yang dominan mempengaruhi proyek Bendungan Bendo, Ponorogo dengan eigenvalues comulative sebesar 43,705%.
Kata Kunci: Pandemi Covid-19; Proyek Bendungan
Abstract: Factor Analysis As Impact Of The Covid-19 Pandemic On Bendo Dam Ponorogo Projects: This study aims to analyze the impact of covid -19 on the Ponorogo bendo dam project using the principle component analysis (PCA) method, starting with compiling and distributing questionnaires to 50 worker respondents at the Ponorogo bendo dam project to then analyze principle component analysis (PCA). Based on the results of the factor analysis ranking, there are 5 factors impacting the Covid-19 pandemic that affected the Bendo Dam project, Ponorogo, namely: changes in working hours, abandoned projects due to PSBB, reduction in workforce, difficulty in transportation for workers and builders to the project site, and delays in payment workers' wages. Furthermore, the factor that has a dominant influence on the Bendo Dam project, Ponorogo is a change in working hours with a loading factor value of 0.838. The conclusions obtained from factor analysis formed 6 factors impacting the Covid-19 pandemic that affected the Bendo Dam project, Ponorogo, namely factor 1 called internal factors, factor 2 called project uncertainty factor, factor 3 called area restriction factor (PSBB), factor 4 called social factors, factor 5 is called pending order process factor, and factor 6 is called communication factor. Internal factors are the impact factors of Covid-19 which dominantly affect the Bendo Dam project, Ponorogo with a cumulative eigenvalue of 43.705%.
Keywords: Covid-19 Pandemic; Dam Projec