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Jurnal Serambi Engineering
Published by Universitas Serambi Mekkah Aceh
ISSN : 25283561     EISSN : 25411934     DOI : https://doi.org/10.32672/jse
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science
Jurnal Serambi Engineering diterbitkan oleh Fakultas Teknik Universitas Serambi Mekkah Banda Aceh. Jurnal ini diterbitkan sebagai media untuk menyalurkan informasi hasil penelitian dibidang keteknikan baik yang dilakukan oleh para dosen dari Fakultas Teknik, khususnya dari Universitas Serambi Mekkah maupun dari pihak lain. Penelitian yang dipublikasikan dapat berupa penelitian lapangan maupun laboratorium serta kajian literatur.
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Articles 44 Documents
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Search results for , issue "Vol 7, No 2 (2022): April 2022" : 44 Documents clear
Analisis Potensi Bahaya di Area Produksi Kelapa Sawit Menggunakan Metode HIRARC di PT. Beurata Subur Persada Gaustama Putra; Ori Saputra
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.3896

Abstract

In palm oil companies in carrying out the production process, there are still potential hazards in the work area such as at the sterilizer station, thresser station, press station, clarification station and other stations. The method used in solving these problems is the HIRARC method, which aims to reduce the increased risk and create a good work environment. Based on the risk assessment that has been carried out by the author, there are four risk level categories, namely extreme risk, moderate risk, high risk and low risk. At an extreme risk, one of which is broken bones, which can take lives. At moderate risk, one of them is hitting the head on the floor. While at high risk, namely fractures, and sprains. Lastly, the low risk is one of sprains. Risk assessment is given a level in each risk category so that the most dangerous risk is obtained, namely the sterilizer gets level 15, thresser gets level 6, pressing gets level 8, while clarification gets the lowest level, namely 3. Risk control is carried out by providing risk mitigation such as wear PPE, apply SOPs, clean the work area.
Pemodelan Status Trofik Danau Laut Tawar Aceh Tengah Saiful Adhar; Erlangga Erlangga; Rachmawati Rusydi; Mainisa Mainisa; Munawwar Khalil; Muliani Muliani; Eva Ayuzar; Muhammad Hatta
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4022

Abstract

The trophic status of Laut Tawar Lake was increasingly leading to an alarming level of degradation. Efforts to anticipate an increase in trophic status require scientific knowledge of the trophic phenomena of the waters empirically. This research examines the trophic status parameters to produce a model of the trophic status of Laut Tawar Lake. The proposed model was a modification of Carlson's Trophic State Index Method. Analysis of the relationship examined the interaction of water clarity (SD) with chlorophyll-a (Chl), Total Suspended Solid, and Total Dissolved Solids, and the interaction of chlorophyll-a with nutrient concentration (TP, TN). Data were analyzed descriptively quantitatively, correlation, and regression. The results showed that the waters of Laut Tawar Lake contain phosphate (TP) 34 µg/L, Total Nitrogen 687 µg/L, chlorophyll-a 10 µg/L, Total Suspended Solid 47 mg/L, Total Dissolved Solid 84 mg/L, and water clarity 4.0 m. The regression test showed that the abundance of phytoplankton (Chl) was affected by nutrient phosphate with the empirical model equation Chl = 0.565 TP – 9.161. Nitrogen nutrients did not partially affect the concentration of chlorophyll-a in the waters of Laut Tawar Lake. Water clarity is influenced by chlorophyll-a and TSS, where TDS has no effect partially. The empirical model obtained is Ln SD = 1.757 – 0.013 Chl – 0.008 TSS. Modification of Carlson's TSI by substituting the two equations obtained the equation TSIdlt = 13.46 + 8.08 ln TP + 0.04 TP + 0.04 TSS. This model simulation gives an estimation rate of 91.06%.
Managing Quality of The Carton Box Production Process CV GGG Using New Seven Tools Method Ari Aprian Amartya; Nina Aini Mahbubah
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4038

Abstract

Quality control is an activity to certify that the process meets the enterprise's standards. The Quality Division of CV GGG has been encouraged to find suitable methods to decrease current larger than common defects. This research aims to evaluate the quality of the carton box production line based on the new seven tools approach. This approach begins with affinity diagrams followed by interrelationship diagrams, tree diagrams, matrix analysis diagrams, activity network diagrams, and process decision program charts. The study identified two defects: untidy paint quality and fragmented fractions throughout the production line. Furthermore, implementing the new seven tools has been distinguished primary factors causing defects. The first factor is the unavailability of manual Standard Operational procedures for maintenance schedules. The next factor is unnecessary movement during storage and transfer of materials and improper working environment on the production workshops. Several scenarios have been proposed to eliminate such defects and increase productivity. 
Penentuan Prioritas Kriteria Pada Proses Rekrutmen dan Seleksi Karyawan Menggunakan Metode Analytic Hierarchy Process di PT Citatah Tbk Ikah Ikah; Risma Fitriani
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.3957

Abstract

Abstract As the initial phase in the recruiting process, recruitment and selection must be done properly, efficiently, effectively, and objectively so that the hired personnel are qualified, have high credentials, and can perform their responsibilities according to their positions. Using the Analytic Hierarchy Process (AHP) technique, this study attempts to find the most important factors for employee acceptability at PT Citatah Tbk. Experience, education, age, psychological tests, skills, interviews, height, and location of recruiting jobs are some of the recruitment criteria employed by PT Citatah Tbk HR GA Department. Analytic Hierarchy Process (AHP) is a method for solving Multicriteria Decision Making (MCDM) problems using a decision support system. The results show that age is the first criterion in the employee recruitment process, with a weight of 0.2664, education is the second criterion with a weight of 0.2047, experience is the third criterion with a weight of 0.1495, skill is the fourth criterion with a weight of 0.1209, a psychological test is the fifth criterion with a weight of 0.0918, an interview is the sixth weight with a weight of 0.0728, the seventh weight, with a weight of 0.530, is length, and the eighth weight, with a weight of 0.0409, is the location of the recruiting position.Keywords: Recruitment, criteria, employee, analytic hierarchy process, selection. AbstrakRekrutmen dan seleksi sebagai langkah awal dalam proses penerimaan karyawan harus dilakukan secara akurat, efisien, efektif dan obyektif agar pegawai yang direkrut berkualitas, memiliki kualifikasi tinggi, dan mampu menjalankan tugas sesuai jabatannya. Tujuan dari penelitian ini adalah untuk menentukan kriteria prioritas perekrutan karyawan di PT Citatah Tbk dengan menggunakan salah satu metode Multi Criteria Decision Making (MCDM), yaitu Analytic Hierarchy Process (AHP). Penerapan metode MCDM tepat digunakan untuk menyelesaikan masalah multi kriteria seperti pada penelitian ini. Beberapa kriteria pada penerimaan karyawan yang digunakan oleh Departemen HR GA PT Citatah Tbk adalah pengalaman, pendidikan, usia, psikotes, keterampilan, wawancara, tinggi badan dan lokasi posisi rekrutmen. Hasil penelitian menunjukkan bahwa kriteria pertama saat merekrut karyawan adalah usia dengan bobot 0,2664, kedua pendidikan dengan bobot 0,2047, ketiga pengalaman dengan bobot 0,1495, keempat skill dengan bobot 0,1209, kelima adalah psikotes dengan bobot 0,0918, keenam interview dengan bobot 0,0728, ketujuh tinggi badan dengan bobot 0,530, dan kedelapan penempatan lokasi rekrutmen dengan bobot 0,0409.Kata Kunci: Rekrutmen, kriteria, karyawan, analytic hierarchy process, seleksi.
Pengukuran Beban Kerja Operator Menggunakan Metode 10 Denyut di PT. Wirataco Gaustama Putra; Jefri Zikrullah
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.3919

Abstract

PT. WIRATACO is an industry with experience in road construction and construction located in the village of Keude Linteung, Seunagan Team, Nagan Raya Regency, Aceh Province. At PT.WIRACO there is a target that must be achieved so that every operator on the creaser machine works harder. However, the high demand by consumers is not fully resolved. thus causing the operator to feel tired and at least a sense of anticipation of an accident at work. the work risk that occurs in the work operator is high with work accidents that may occur. Factors that can also be caused by the workload is a hot work environment. Based on these problems, it is necessary to do research on the physical workload of each operator by applying the 10 pulse method. This research was conducted directly without the influence of other parties. From the results From the results of research conducted on 9 creaser machine operators, it can be said that 3 operators with a heavy work percentage (11.97-25.16%) and 6 operators with a light workload percentage (32.41-39.78%.) and can lock that 6 operators do not need repairs and 3 operators need repairs. Improvements given are additional rest time for operators who experience excessive workloads, the company can also provide work motivation to operators through giving gifts every month or can provide work motivation directly.            
Efisiensi Pemilihan Pelat Baja pada Rehabilitasi Gedung Bertingkat terhadap Biaya dan Waktu (Studi Kasus Gedung Operasi RSUD Kota Langsa) Arisna Fauzia; Firdasari Firdasari
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4100

Abstract

Increasing the use of space in the multi-storey buildings is self-requirement for the owner in making the most of function of the building. The Langsa City Hospital Operating Building with structural height of +10 meters and has two floors, with the existing part of the 2nd floor not fully designed a closed room. Currently, according to the owner's request, the function of this building is being utilized to be used as a first-floor room as an operating room, while the second floor is intended as a storage room and hall. Based on that, it is necessary to estimate against the appropriate and efficient method of slab work so that to be sure the project objectives are achieved. This paper aims to analyze the comparison between the use of steel deck and conventional deck to the study sites based on cost and time. The research method used begins with collecting field data, calculating the budget plan referring to the Work Unit Price Analysis (AHSP) contained in the contract document, then estimating the implementation time using the labor coefficient according to the 2016 AHSP. The results showed that there was a difference in the budget for the two deck slabs of Rp. 28,616,000. In addition, in terms of the duration of the completion of the work, the difference between the calculation of the estimated implementation of the conventional deck work and the realization of the implementation of the steel deck is 39 working days. Based on the results obtained, the use of steel deck is cheaper and more time efficient than the use of conventional deck. So that the selection of the use of steel deck at the study site is appropriate because it can save costs and time.
The Study of Using Recycled Chemical Floc for Reducing Chemical Doses in Water Treatment Process (Case Study: Ciliwung Water River at Bojong Gede Sub-District) Aura Ryumandhina Aninditya; Temmy Wikaningrum
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.3872

Abstract

Good water quality following to the criteria for clean water, a series of treatments is needed. One of the processes that aim to reduce turbidity value is coagulation-flocculation. To achieve the maximum result, optimum doses of coagulant are needed. This study aimed to explore the potential for the reuse of chemical flocs to reduce the optimum dose and effect on pH and water turbidity values. The method used is laboratory experiment using a jar test with rapid and slow stirring of 180 rpm for 90 seconds and 40 rpm for 10 minutes, respectively with 30 minutes of sedimentation. The characteristics of the flocs used are 76% from PAC with variants volume from 0.5 ml to 3 ml, which impact decreasing the optimum dose by 50% with achievement of turbidity value 0.16 NTU or equivalent to 99.65% reduction efficiency. Using the T-Test Two-Sample Equal Variances between the optimum dose turbidity value and decreasing the dose combined with the recycled floc, the p-value less than 0.05, means that chemically recycled has a significant different on the turbidity value. Meanwhile, the p-value obtained between the pH value before and after the addition of recycled flocs is less than 0.05, hence the water after treatment has less acidic than the conventional method. Water pH is significant different showed as less reduction of pH by having recycled PAC flocs.
Penerapan Metode Peramalan Permintaan pada Produk Piece Pivot di PT. Trijaya Teknik Karawang Nurzakiah Darozat; Wahyudin Wahyudin; Hamdani Hamdani
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4018

Abstract

Fluctuations in consumer demand cause companies to experience difficulties in production planning. PT. Trijaya Teknik Karawang is a manufacturing company engaged in fabrication, machining, and stamping parts. The production process is based on job orders. Piece Pivot is one of the parts with the highest number of requests and often fluctuates. Therefore, a strategy is needed, one of which is forecasting. This study aims to compare the four forecasting methods in order to determine the right method to be applied at PT. Trijaya Teknik Karawang. The comparison is done by using the 3-month moving average method, exponential smoothing α = 0.5 and α = 0.9, linear regression and naive method. Comparisons were made using the Mean Absolute Deviation (MAD) error accuracy, Mean Square Error (MSE), Root Mean Square Error (RMSE), and Absolute Percentage Error (MAPE). Based on data processing, the linear regression method produces the lowest error accuracy, namely MAD 2126,573, MSE 6091686.092, RMSE 2468.134 and MAPE 0.264. In tracking signal test, the movement of products meets the requirements, which are between -4 and 4. Then the Linear Regression method that can be applied to PT. Trijaya Teknik Karawang.
Simulasi Konsumsi Energi Bangunan Berbentuk Dome Sebagai Upaya Optimalisasi Desain Nova Purnama Lisa; Syafiqah Qamar
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.4099

Abstract

The shape of the building, if projected against the sun's orientation, can provide shading and response to solar radiation because the shape of building and layout of the building provides a warming and cooling impact. The design of the shape of the building at the resort also pays attention to the orientation and functioning of the building related to its effect on the energy consumption produced. In the design process, many energy costs are found to be very expensive, therefore it takes efforts to control and save energy in buildings from the design stage of shape and pattern of space. The need for building energy is mostly used for air conditioning and lighting, both of which are filled by light and the orientation of the sun that enters the building both through the building sheath. So the shape and position of the building sheath are very dependent on the basic shape and orientation of the building. The problem in this study, the basic shape design of dome-shaped resort buildings responds to the increase and decrease in energy use in the resulting buildings per year. The study aims to find out how much energy efficiency a dome-shaped building produces if it is built and declared viable or not for residence by the user. The variable used is Annual Energy CO2, Annual Energy Cost, and Annual Energy Use. This study uses experimental methods of modeling simulation through software plug-in Sefaira. The result of the Sefaira simulation shows that to get value. KWH/year as much as 71 kWh/m2/yr, by the target ASHRAE 90.1-2019. The results showed that the dome-shaped resort building belongs to the category of not low energy against the challenge UIE 2030 38 kWh/m2/yr, based on the amount of energy consumption produced.
The Study of Improving Acid Mine Water Quality by Manganese Greensand and Activated Carbon Filtration Mayabella Puspita Nugraha; Temmy Wikaningrum
Jurnal Serambi Engineering Vol 7, No 2 (2022): April 2022
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v7i2.3850

Abstract

Bangka Belitung is one of the provinces in Indonesia known as a tin-producing area. Illegal tin mining results in excavated holes. The characteristics of the water in the ex-mining pits are acidic and contain heavy metals such as iron. This journal aims to determine the effect of filtration in improving the quality of water samples and to determine the best doses of Na2CO3 and KMnO4 as pre-treatment. Also to find out which experiment resulted in higher Fe removal efficiency and whether the quality of the treated water complies with the Regulation of the Minister of Health Number 492 of 2010. This study used primary data of pH and iron content as dependent variables. The population of this research is Alang Lake water that taken by random sampling method. The experiment was carried out on a lab-scale with two independent variables which were sampled with replicates every 30 minutes. In this experiment, the optimum doses of Na2CO3 and KMnO4 were 300 mg/L and 0.75 mg/L, respectively. The treated water has a pH value of 7.4-8.1, iron concentration 0.25 mg/L with removal efficiency is 93.56%, and turbidity 0.05-0.75 NTU. Thus, it can be said the dependent variables are in accordance with the relevant regulations.Keywords: Activated Carbon, Fe, Filtration, Manganese Greensand, Water Quality 

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