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All Journal FLUIDA Jurnal Teknologi Maritim PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Aulia Nadia Rachmat
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Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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EVALUASI KEBISINGAN DAN NOISE MAPPING DI BENGKEL NON-METAL POLITEKNIK PERKAPALAN NEGERI SURABAYA Erlangga Bagaskara; Aulia Nadia Rachmat; Am maisarah disrinama
Jurnal Teknologi Maritim Vol 5 No 1 (2022): Jurnal Teknologi Maritim
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M) - PPNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/jtm.v5i1.1532

Abstract

Salah satu potensi bahaya yang ada di Bengkel Non-Metal Politeknik Perkapalan Negeri Surabaya (PPNS) adalah kebisingan yang berasal dari pengoperasian mesin-mesin. Evaluasi kebisingan dilakukan guna mengetahui persebaran intensitas kebisingan di ruangan tersebut dan memberikan upaya pengendalian untuk mencegah dampak dari paparan kebisingan. Pengukuran dilakukan berdasarkan SNI 7231:2009 dengan menggunakan alat ukur sound level meter dan mendapatkan hasil tingkat kebisingan kontinyu setara (Leq) tertinggi sebesar 109.31 dBA dengan kebisingan kombinasi sebesar 112.31 dBA. Hasil noise mapping memperlihatkan area mesin gerinda, mesin surface planner, dan mesin circular saw berwarna merah. Rekomendasi pengendalian yang diberikan adalah pemberian noise barrier berupa bilik/sekat pada area kerja gerinda, pengaturan jam kerja, pemberian larangan masuk ruangan bagi yang tidak berkepentingan, pemberian pengarahan K3 melalui safety briefing, dan penggunaan APD earmuff
Evaluasi dan Analisa Kinerja Proyek terhadap Biaya dan Waktu Penjadwalan Menggunakan Pendekatan Earned Value Method (Studi Kasus Proyek Air Receiver Tank) Maulina Septa Dwi Anggraini; Renanda Nia Rachmadita; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Abstract - Industrial and construction projects are one of the sectors that support economic growth in Indonesia. Projects are required to be managed to achieve the targets that have been set. One of the construction companies PT. LDP specializing in engineering received the Air Receiver Tank project from one of the clients and the project was delayed from a predetermined deadline. Such delays have consequences for the decrease in client confidence in the performance of the company. Therefore, evaluation and analysis related to the performance of the project are required to the time and cost of the project using the Earned Value Method (EVM). Scheduling analysis uses Precedence Diagram Method (PDM) and crashing to speed up the duration of project completion. The results of the study based on EVM analysis showed that the project experienced delays with an estimated project completion time of 88 days and an estimated project completion cost of Rp662,241,998.41. Based on the analysis using PDM and crashing obtained the results of acceleration from 95 days to 65 days. The acceleration alternative used is to increase the workforce by 50% with a cost increase of 13.89% of the direct labor cost at the actual duration
Evaluasi Penjadwalan Proyek Waste Water Treatment Plan Menggunakan Metode Precedence Diagram Method dan Crashing Renata Alvita Loka Leonsi; Renanda Nia Rachmadita; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Abstract - Scheduling is needed to run the project optimally, efficiently and according to the planned schedule. There are several factors that make the project late. The causes are ineffective working hours, late arrival of materials, and high work productivity. Waste water treatment plan is one of the many projects undertaken by PT.Samudra Mas Nusantara. In this project there was a delay of 34 days from the planned duration of 75 days to 109 days. The scheduling method used is the Precedence Diagram Method. The duration of project completion is accelerated by analyzing the acceleration of each activity. The s-curve is used to see the progress of the project each week. The results of the research show that there is 1 critical path, namely the path with activities A-B1-B2-C1-C2-D111-D121-D131- D141-D21-D22-D23-D24-D25-E1-E4-F-G H. The duration of the activity can be accelerated by 35 days from 109 days to 74 days with an increase in costs of 3.03% from Rp.1,822,201,012- up to Rp1,877,287,312,-.
Optimalisasi Hasil Produksi pada Pabrik Manufaktur Furnitur dengan Metode Time and Motion Study (TMS) Andi Jafar Wahyu Hidayat; Endang Pudji Purwanti; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Abstract - Increasing production quantity is the company's effort to increase the scope of production, to maximize the potential for greater product sales. The Make to Order (MTO) system used for largescale product orders has an impact on uncertain production forecasts so that good planning is needed to reach the targets. Furniture factories that have a target market for product exports, need a production time that is in accordance with the capacity of the factory. Determination of standard time is one way to increase production results. The time and motion study (TMS) method can determine the standard time by recording production tracks to get maximum production results. The results of this study indicate that the total standard time for the one seater margaret is 3,851.08 seconds. Production time for 500 products takes 67 production working days, 1000 products takes 134 production working days and 1500 products takes 201 production working days. Production calculation time using TMS has accelerated time by 11.03%, which is 477.92 seconds, compared to the existing production time, namely there is an increase in production with production acceleration of up to 9 days on 500 margaret one seater products
Optimasi Waktu dan Biaya Proyek Flue Stack Menggunakan Metode Time Cost Trade Off Balqis Rahmi Salsabil; Renanda Nia Rachmadita; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Abstract - Construction company in Karangpilang received an order for the Flue Stack project. There was a delay on this project, so the company has to pay a fine of 0,2% of the initial contract which is calculated everyday. Therefore, research is needed to analyze project scheduling so that optimal time and cost are obtained from working on the Flue Stack project. The methods used in this study are the Time Cost Trade Off method. Crashing is carried out on several critical activities, such as marking/cutting, roll, assembly ring, blasing/primer, assembly segment, finish painting, and packing. This research used an alternative to crashing with additional overtime and labor. The results of this research obtained the optimal time and cost using Time Cost Trade Off method with alternative additional 50% labor. The result of crash duration is less 74 days from actual schedule, with cost Rp.3.805.459.099,- there is a decreased of 13,58% or Rp.597.910.301,- from the actual duration fee of Rp.4.403.369.400,-. Comparison of flue stack progress using the S curve, it was found that the schedule with accelerated duration could be completed faster that the actual duration because the more sloping line indicated greater weekly progress
Evaluasi Penjadwalan Proyek Waste Water Treatment Plan Menggunakan Metode Precedence Diagram Method dan Crashing Renata Alvita Loka Leonsi; Renanda Nia Rachmadita; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Scheduling is needed to run the project optimally, efficiently and according to the planned schedule. There are several factors that make the project late. The causes are ineffective working hours, late arrival of materials, and high work productivity. Waste water treatment plan is one of the manyprojects undertaken by PT.Samudra Mas Nusantara. In this project there was a delay of 34 days from the planned duration of 75 days to 109 days. The scheduling method used is the Precedence Diagram Method. The duration of project completion is accelerated by analyzing the acceleration of eachactivity. The s-curve is used to see the progress of the project each week. The results of the research show that there is 1 critical path, namely the path with activities A-B1-B2-C1-C2-D111-D121-D131- D141-D21-D22-D23-D24-D25-E1-E4-F-G-H. The duration of the activity can be accelerated by 35 days from 109 days to 74 days with an increase in costs of 3.03% from Rp.1,822,201,012- up to Rp1,877,287,312,-.
Analisis Kegagalan Komponen Overhead Crane dengan Metode Failure Mode and Effect Analysis (FMEA) Virdana Adwa Metdifa Husna; Dian Asa Utari; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Repair and maintenance activities aim to increase the functional capability of a system or tool used in production. At PT. Lintech Duta Pratama (PT. LDP), overhead crane is used as a means of moving materials and finished goods. This tool operates to transport materials and finished goods continuously for ± 7 hours per day for 5 working days a week. However, maintenance actions have not been carried out optimally due to a lack of manpower/workers. Thus resulting in delays in the implementation of maintenance activities and affect the completion of production. Against this background, failure identification was carried out using the Failure Mode and Effect Analysis (FMEA) method on the 12.5T overhead crane. With this method the results obtained by filling in the FMEA Worksheet showed that there were 13 components that had the highest risk level value, with 26 failure modes from whole component. The highest RPN value is for the MCB/main power supply component with a value of 209, while the lowest is for the hoisting hook component with a value of 7. So that this component can be considered by the maintenance team and related parties in the company when carrying out maintenance activities on the overhead crane equipment.
Analisis Kegagalan Komponen Overhead Crane dengan Metode Failure Mode and Effect Analysis (FMEA) Virdana Adwa Metdifa Husna; Dian Asa Utari; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Repair and maintenance activities aim to increase the functional capability of a system or tool used in production. At PT. Lintech Duta Pratama (PT. LDP), overhead crane is used as a means of moving materials and finished goods. This tool operates to transport materials and finished goods continuously for ± 7 hours per day for 5 working days a week. However, maintenance actions have not been carried out optimally due to a lack of manpower/workers. Thus resulting in delays in the implementation of maintenance activities and affect the completion of production. Against this background, failure identification was carried out using the Failure Mode and Effect Analysis (FMEA) method on the 12.5T overhead crane. With this method the results obtained by filling in the FMEA Worksheet showed that there were 13 components that had the highest risk level value, with 26 failure modes from whole component. The highest RPN value is for the MCB/main power supply component with a value of 209, while the lowest is for the hoisting hook component with a value of 7. So that this component can be considered by the maintenance team and related parties in the company when carrying out maintenance activities on the overhead crane equipment
Study of HAZOPs in the Screening Unit of the Industrial Gas Wastewater Treatment Plant Amalia Novitrie, Nora; Mey Rohma Dhani; Aulia Nadia Rachmat; Yessica Novrita Devi
Fluida Vol. 16 No. 1 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i1.4499

Abstract

The filtration is the final stage of industrial gas wastewater treatment for clean water generation. Filtration is an operation of separating solid and liquid materials by filter medium. In filtration process the driving force such as pressure difference by gravitation or rotary power cause the feed to flow. The process parameters in the filtration process need to be monitored and controlled because deviation or abnormality of the process parameters will cause operating failures. This condition requires a more in-depth identification so that the risks of operating failures can be minimized. HAZOPs is a method to identify hazard that caused by deviation of parameters using guide words. Steps of the research consisted of early survey, literature study, and filling the HAZOPs worksheet such as determine study node, deviation, parameter, guideword, risk evaluation, and risk control. The results of the study show that there were four potential deviations from three parameters which were flow, pressure, and temperature. Risk values analysed were medium and low. Recommendation of the system are adding alarm, valve, changing filter regularly, and scheduling the routine maintenance.
Co-Authors Am Maisarah Disrinama Amalia Novitrie, Nora Andi Jafar Wahyu Hidayat Balqis Rahmi Salsabil Dian Asa Utari Endang Pudji Purwanti Erlangga Bagaskara Maulina Septa Dwi Anggraini Mey Rohma Dhani Renanda Nia Rachmadita Renata Alvita Loka Leonsi Virdana Adwa Metdifa Husna Yessica Novrita Devi