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Journal of Green Engineering for Sustainability
Published by Universitas Universal
ISSN : 30256895     EISSN : 30256895     DOI : 10.63643
Core Subject : Science, Social, Engineering,
Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering
The Journal of Green Engineering for Sustainability or Greeners is published twice a year (April and September). Greeners is a scientific media publication that contains engineering research results, especially green engineering. The results of these studies can be in the form of products, designs, ideas, and certain methods that can be described scientifically so that they are able to protect the environmental ecosystem for the better, minimizing risks to human health without sacrificing sustainability and economic efficiency. The scope of discussion or topic of articles received by Greeners media editors can include: Environmental Friendly Production System Manufacturing Processes and Manufacturing Systems Logistics and Distribution Management Packaging Engineering (packaging) Product Design and Development Ergonomics and Work Studies Integrated Waste Treatment System Environmental modeling Solid waste management Water quality Environmental management Environmental education Environmental Friendly Technology Renewable energy
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 25 Documents
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Analisis Potensi Kecelakaan Kerja di PT. XYZ dengan Menggunakan Metode Hazard and Operability Study Sokhibi, Akh.; Dwiyulianto, Moh Agung; Asri, Vikha Indira
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 1 (2024): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i1.240

Abstract

Electricity is a major economic factor in Indonesia. Providing electric power is divided into three processes, namely generation, transmission and distribution. PLN is one of the electrical energy providers in Indonesia which plays an important role in providing sufficient electricity for daily activities, industry and other sectors. K3 is an important factor that must be applied to PLN because it is related to electricity. The Transmission and Substation Service Unit (ULTG) carried out time-based maintenance, condition-based maintenance and emergency maintenance and it was found that one of the workers was not using complete Personal Protective Equipment (PPE) when checking the Lightning Arrester (LA).  So research is needed with the aim of analyzing K3 in the activity process to determine potential hazards and hazard risk levels. Descriptive research methods are used to analyze the risk of work accidents that may occur during maintenance. This research uses the Hazard and Operability Study (HAZOP) method to determine the value of possibilities and consequences by distributing questionnaires to K3 supervisors. PT. A B C.  The results show six hazards with a high risk level, one hazard with a medium risk level, and six hazards with a low risk level. High risk caused by material, electrical voltage and work attitude. Risk controls include testing equipment and PPE several times a year, refilling PPE, complying with SOPs, and providing drinking water. Hazard control efforts at PT. ABC includes the use of the HAZOP method, implementation of clear SOPs, provision of appropriate PPE, routine equipment checks, and emergency response plans in emergency situations.
Pemilihan Rekomendasi Rumah Makan Vegetarian Menggunakan Metode AHP Tandy, Henry; Hamidi, Kurniawan
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 1 (2024): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i1.242

Abstract

Purchasing activities are activities that need to be carried out by the community to meet the needs of life. Vegetarian restaurants are one of the businesses that sell food needs. However, during the purchase process there is a level of satisfaction from consumers. These levels are influenced by various factors or criteria. The purpose of this study is to measure and rank the recommended vegetarian restaurant rankings and the criteria that affect the purchase process using the Analytical Hierarchy Process (AHP) method. The results of this study are Cafe Abang restaurant (A1) with a weight value of 0.379, the second place is the Kedai Bo Bak restaurant (A3) with a weight value of 0.25, the Sweet Veggie restaurant (A2) is in third place with a weight value of 0.191, and RM. Healthy Vegetarian (A4) with a weight value of 0.18. While the criteria for food and beverage menu prices (C3) with a weight value of 0.311, the second place is the operational time criterion (C4) with a weight value of 0.228, the third place is with the restaurant location distance criterion (C5) with a weight value of 0.216, the fourth place is with the number of food and beverage menu variants (C1) with a weight value of 0.153,  and ranked fifth with the criterion of the number of restaurant facilities (C2) with a weight value of 0.092.
Penerapan House of Quality (HoQ) Untuk Peningkatan Kualitas Produk Pada UMKM Salad Buah di Kota Batam Sumitro; Lawi, Ansarullah
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 1 (2024): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i1.243

Abstract

Fruit Salad SMEs in Batam City face significant challenges in improving product quality and services to meet customer needs. This study aims to identify and analyze the needs of customers of Fruit Salad SMEs in Batam City and formulate quality improvement strategies using the House of Quality (HoQ) tool. Data were obtained through surveys and analyzed using Pearson correlation to ensure validity and reliability. The results show that all items have a significant correlation with the total score, with correlation values ranging from 0.697 to 0.860 and p-values < 0.05, indicating strong data validity and reliability. Specifically, the item "Price appropriate to quality" showed the highest correlation at 0.860, while "Ease of ordering" had the lowest at 0.697. The analysis confirmed that the formulated strategies based on customer needs can be relied upon to enhance the competitiveness of Fruit Salad SMEs in Batam City. The application of the HoQ tool provided a clear prioritization of quality attributes, allowing SMEs to focus on aspects such as "Good fruit quality" and "Maintained cleanliness and hygiene," which had the highest importance values of 10.369 and 10.000, respectively. By integrating statistical analysis and HoQ, this study offers a robust framework for the sustainable development and competitiveness of Fruit Salad SMEs in the dynamic market environment of Batam City.
Evaluasi Kondisi Eksisting Timbulan Sampah Berdasarkan Jumlah Penduduk dan Kepadatan Penduduk di Kota Batam Messal Veronica; Prajati, Gita
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 1 (2024): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i1.244

Abstract

Population and population density affect the production of waste generated. The increasing of population and population density in Batam caused by the economic growth. The development of Batam not only led into the increasing of population but also waste generated. Therefore, the aims of this research is to evaluate the existing condition of waste generated based on population and population density in Batam with descriptive analysis. Descriptive statistical analysis was conducted in order to know range value, mean and standard deviation of waste generated, population and population density. The result shows waste generated in Batam has increased into 4.81% from 2021 to 2022. Batam Centre District supplies the most amount waste generated (23%), whereas Nongsa District supplies the less amount of waste generated (4,86%). The Daily waste generation rate in Lubuk Baja is higher than daily waste generated based on SNI. Another specific variable in population might be given impact to waste generated, which is ratio comparation of population based on gender. Descriptive analysis’s result stated that waste generated has range value 12,478,650 – 60,336.220 with standard deviation 14,542,363.712 and mean 28,998,778.89. Population range value is 61,497–226,040 with standard deviation and mean respectively 57,227.43 dan 135,304.22. Last, population density has range value 295 – 6,406 with standard deviation 1,907.59 and mean 2,550.89.
Pemodelan Sederhana Persamaan Laplace Pada Potensial Menggunakan Finite Difference Meldra, Delia; Mardiansyah, Yopy
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 1 (2024): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i1.248

Abstract

Geo-electricity is a methods to measure potential in the earth’s surface. Laplace equation’s second orde is used in natural potential measurement. Finite difference method is used to solve this Laplace equation to get numeric solution. The solution figures the distribution of source potential that gotten from many sides of modeling domain.
Modifikasi Tooling Striper Plate Pada Block Mesin Cross Pieces Cut Untuk Memperpanjang Masa Pemakaian Die Plate Nugroho, Adi; Santoso, Agus
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 2 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i2.271

Abstract

Part stamping is a result of a production process called sheet metal forming, which is needed to produce the press part sheet metal plate or sheet , pressing dies as molds and pressing machines to produce it. This study aims to extend the use of masa stiper plate die plate by modifying the engine block cross pieces cutusing analysis response surfaces methodology ( RSM ) in the data analysis to optimize the value of the, punch and air pressure ( pressure) , modifications done on the tooling plate striper at block cutting machines cross pieces cut, from the modifications made previously discarded die platecan be reused in the production process without, opservasi of data processing with application minitab 16 , there is no influence between the mass use of the die plate against three fariasi parameters used. The modification process performed at striper tooling plate is on the right side of the bottom with a width of 26 mm and a gradual depth of 0.5 mm - 1.5 mm, modified subsequently assembled and used on the observations taken on the production line next if the value obtained using the program minitab 16, from the data obtained is used to find the optimum value on an analysis of response surfaces.
Redesign of Material Storage Warehouse Layout Using Shared Storage Method (Case Study: Chemical Warehouse) Desnita.S, Yolanda Lisa; Nugroho, Adi
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 2 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i2.273

Abstract

The research was conducted in a material storage warehouse where some items were placed outside the warehouse due to space limitations. Storing items outside the warehouse can lead to a decline in product quality and financial losses. Therefore, this study aims to redesign the warehouse layout using Shared Storage method to optimize storage capacity. By analyzing storage needs and capacity, this research seeks to develop a new layout to enhance warehouse storage capacity. This study employs a quantitative approach, collecting data on material demand frequency, the existing warehouse layout, and the number of materials. Calculations were performed to determine the required aisle width and the total storage area needed for each type of material, considering forklift usage and pallet dimensions. The research findings indicate that the proposed warehouse layout increases storage capacity from 810 pallets to 1,298 pallets, representing a 60.25% increase. This improvement not only addresses space constraints but also contributes to better product management. The study provides practical implications for warehouse managers looking to implement space-saving strategies and improve operational efficiency. The Shared Storage method has proven to be a viable solution for warehouses facing similar challenges in maximizing storage space.
Application of Eco-Friendly Activated Carbon from Organic Waste for Polluted River Water Treatment: Kinetic Study and Water Quality Evaluation Mawarni, Mintan; Triwuri, Nurlinda Ayu; Fadlilah, Ilma
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 2 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i2.274

Abstract

River water pollution in Cilacap Regency is caused by industrial activities related to oil refining and river crossing traffic, which generate wastewater containing Total Suspended Solids (TSS), Total Dissolved Solids (TDS), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and heavy metals such as lead. This study aims to evaluate the performance of biomass-based activated carbon—derived from coconut fronds and laban wood sawdust—in river water purification through physicochemical characterization and adsorption kinetics approaches. The activated carbon was characterized according to the Indonesian National Standard (SNI) 06-3730-1995, and its surface area was analyzed using the Brunauer–Emmett–Teller (BET) method. Characterization results for AC-PK 1(100) showed a moisture content of 0.1085%, ash content of 3.05%, iodine adsorption capacity of 571 mg/g, and a surface area of 110.595 m²/g. The adsorption process after 15 minutes demonstrated that the activated carbon was effective in reducing water quality parameters, with the pH reaching neutral (7) and TSS decreasing to 212 mg/L, meeting Class III standards based on Government Regulation No. 82 of 2001. However, the TDS value of 4690 mg/L did not meet the quality standard. Kinetic studies indicated that the first-order reaction model best described the adsorption mechanism, with R² values approaching 1. The adsorption rate constants were 0.0041 min⁻¹ for TSS and 0.0686 min⁻¹ for TDS. These findings suggest the potential application of biomass waste as a raw material for activated carbon in environmentally friendly river water purification technologies.
The Best Time Series Model For Elotex Demand Forecasting Fitra, Zhakia Irsalina; Gunawan, Fergyanto E.; Nensi, Sri Wahyu
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 2 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v2i2.275

Abstract

Inventory management is carried out to ensure the accuracy of raw material stock in the warehouse. In a chemical raw material distribution company, stockpiling or shortages of raw materials often occur due to fluctuating customer demand. The company is at risk of indirect losses if the product is not sold immediately or if it becomes unavailable. When products are not sold promptly, there is a potential loss due to the limited shelf life of the goods. On the other hand, when products are not available, the company risks losing its customers. The objective of this study is to design a time series model to predict the quantity of chemical raw materials by comparing the accuracy of the Moving Average, ARIMA, and ARMA models. The comparison results will be based on historical demand data for one of the company's products. The product selected in this study is the chemical raw material Elotex, which has the highest demand. The sample data used spans from 2015 to 2023 in daily units. The selection of the best method in this study is determined by considering the model with the lowest RMSE (Root Mean Square Error) value. The research results show that the RMSE value for the Moving Average (MA) model is 3052.7560, the ARIMA model is 4247.9554, and the ARMA model is 4241.8059. Thus, the Moving Average (MA) model, having the lowest RMSE value, is the most accurate model for forecasting the purchase of Elotex chemical raw materials.
Increasing Production Productivity at UMKM Kaca Berkah using the OMAX Method Ramadhanti, Hafidzah; Prasetyawati, Meri
Greeners: Journal of Green Engineering for Sustainability Vol 2 No 2 (2025): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

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

Abstract

UMKM Kaca Berkah found a decrease between the monthly target and output, in the measurement period from October 2020 to March 2021 UMKM Kaca Berkah targeted 4 buffet units per day, but in reality only got 2 to 3 units per day and only 1 month was on target. The productivity index in October 2020 was 14.8%, in November 2020 was 33.3%, in December 2020 was 33.3%, in January 2021 was 18.5%, in February 2021 was 7.4% and in March 2021 was 33.3%. It is necessary to find solutions to increase productivity in UMKM Kaca Berkah especially in their production sector. These obstacles are overcome by knowing the level of productivity which is equipped with data on the manpower ratio and machine working hours ratio. Then the data is analyzed and processed with the method that will be used, Objective Matrix Method (OMAX) by weighting to obtain the total productivity, the Fishbone Method to analyze the causes of the problems obtained and the 5W+1H Method to find solutions that will then be suggested to handle problems. After making improvements in April 2021 and May 2021, the productivity index in April reached 100% and in May also reached 100%.

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