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PUSAT RISET DAN INOVASI NASIONAL UNIVERSITAS SAINS DAN TEKNOLOGI KOMPUTER Alamat: Jl. Majapahit No.304, Palebon, Kec. Pedurungan, Kota Semarang, Jawa Tengah 50199
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Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)
Published by Pusat Riset dan Inovasi Nasional
ISSN : 28290178     EISSN : 2829016X     DOI : 10.55606
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT
Sub Rumpun TEKNIK SIPIL DAN PERENCANAAN TATA RUANG 1. Teknik Sipil 2. Teknik Lingkungan 3. Rancang Kota 4. Perencanaan Wilayah dan Kota 5. Teknik Pengairan 6. Teknik Arsitektur 7. Teknologi Alat Berat 8. Transportasi 9. Bidang Teknik Sipil Lain Yang Belum Tercantum Sub Rumpun ILMU KETEKNIKAN INDUSTRI 1. Teknik Mesin (dan Ilmu Permesinan Lain) 2. Teknik Produksi (dan Atau Manufakturing) 3. Teknik Kimia 4. Teknik (Industri) Farmasi 5. Teknik Industri 6. Penerbangan/Aeronotika dan Astronotika 7. Teknik Pertekstilan (Tekstil) 8. Teknik Refrigerasi 9. Bioteknologi Dalam Industri 10. Teknik Nuklir (dan Atau Ilmu Nuklir Lain) 11. Teknik Fisika 12. Teknik Enerji 13. Penginderaan Jauh 14. Teknik Material (Ilmu Bahan) 15. Bidang Keteknikan Industri Lain Yang Belum Tercantum Sub Rumpun TEKNIK ELEKTRO DAN INFORMATIKA 1. Teknik Elektro 2. Teknik Tenaga Elektrik 3. Teknik Telekomunikasi 4. Teknik Elektronika 5. Teknik Kendali (Atau Instrumentasi dan Kontrol) 6. Teknik Biomedika 7. Teknik Komputer 8. Teknik Informatika 9. Ilmu Komputer 10. Sistem Informasi 11. Teknologi Informasi 12. Teknik Perangkat Lunak 13 Teknik Mekatronika 14. Bidang Teknik Elektro dan Informatika Lain Yang Belum Tercantum Sub TEKNOLOGI KEBUMIAN 1. Teknik Panas Bumi 2. Teknik Geofisika 3. Teknik Pertambangan (Rekayasa Pertambangan) 4. Teknik Perminyakan (Perminyakan) 5. Teknik Geologi 6. Teknik Geodesi 7. Teknik Geomatika 8. Bidang Teknologi Kebumian Lain Yang Belum Tercantum Sub Rumpun ILMU PERKAPALAN 1. Teknik Perkapalan 2. Teknik Permesinan Kapal 3. Teknik Sistem Perkapalan 4. Teknik Kelautan dan Ilmu Kelautan 5. Oceanograpi (Oceanologi) 6. Bidang Perkapalan Lain Yang Belum Tercantum
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 317 Documents
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Industri Bioplastik Starch-Cellulose Blend Tandan Kosong Kelapa Sawit dalam Pemenuhan Sustainable Development Goals Tsaniyah, Legis; Bantacut, Tajuddin; Suprihatin, Suprihatin
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7570

Abstract

Indonesia is the world’s second largest contributor of plastic waste entering the oceans, where it degrades into microplastics smaller than 1 micron. The use of bioplastics is therefore essential to mitigate environmental pollution. One promising alternative is starch–cellulose blend bioplastic derived from empty fruit bunches (EFB) of oil palm. Indonesia produces about 56.35 million tons of EFB annually, containing approximately 40% cellulose, which makes it a potential raw material for bioplastic production, although commercialization has not yet been realized. Environmentally, converting EFB into bioplastics within the palm oil value chain represents a sustainable waste recycling strategy that transforms solid residues into higher-value products. In this design, soda cooking technology is employed to extract cellulose from EFB, utilizing about 16% of waste from a crude palm oil (CPO) mill with a capacity of 30 tons of fresh fruit bunches (FFB) per hour. The starch–cellulose blend bioplastic pellets are formulated using gelatinized cassava starch as the polymer matrix, glycerol as a plasticizer, polyvinyl alcohol (PVA) as a stabilizer, and cellulose as a filler. The designed production capacity of the EFB-based starch–cellulose bioplastic plant is 16,500 tons per year. This bioplastic industry is expected to contribute positively to achieving eight Sustainable Development Goals (SDGs), including Goals 1, 8, 9, 12, 13, 14, 15, and 17, thereby supporting Indonesia’s commitment to sustainable industrial development and a cleaner environment.
Karakteristik Komuter dan Moda Suroboyo Bus Electric Rute Purabaya-ITS di Surabaya Erlangga Isnaini; Septiana Hariyani; Dadang Meru Utomo
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7574

Abstract

Urban mobility in Surabaya faces serious challenges due to the high ownership of private vehicles and the low use of public transportation. The Surabaya City Government launched Suroboyo Bus Electric in November 2024 as a sustainable transportation innovation on the Purabaya–ITS route. This study aims to analyze commuter preferences for the Suroboyo Bus Electric mode over private vehicles, by emphasizing functional factors (cost, travel time, comfort) and symbolic factors (status, identity, modern image). The research method used a quantitative descriptive approach with 400 respondents, primary data was obtained through questionnaires, while secondary data came from government documents and literature. The analysis was carried out through descriptive statistics, chi-square tests, and logistic regression. The results showed that the majority of respondents chose Suroboyo Bus Electric as the main mode (62%), with the dominance of young, middle-income users, and mostly women. Most of the respondents have one unit of private vehicle, but still use electric buses as a mode of complementing mobility. Travel destinations are dominated by social, economic, and educational activities, with an average travel time of 16–30 minutes. In terms of cost, more than half of the respondents spent Rp 5,000-Rp 10,000 per trip, indicating the affordability of fares. Symbolic factors also play an important role, where Suroboyo Bus Electric is perceived as a modern, clean, and sustainable city identity.
Penerapan BIM dalam Perhitungan Volume Pekerjaan dan Biaya Konstruksi Menggunakan Software Autodesk Revit pada Proyek Gedung Pengadilan Agama Sungai Raya Muhammad Naufal Habibbullah; Lusiana Lusiana; Rafie Rafie
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7603

Abstract

The calculation of work volume and construction costs is a fundamental aspect of project management, as errors in the estimation process can directly affect the preparation of the project budget. Many projects still use conventional methods for estimation, which are based on 2D working drawings with the assistance of Microsoft Excel, as seen in the Sungai Raya Religious Court Building project. This method is considered prone to calculation errors and less efficient due to the considerable amount of time required. With the advancement of technology, Building Information Modeling (BIM) has emerged, enabling automatic and integrated calculation of work volumes and construction costs through a three-dimensional digital model. This study aims to examine the implementation of BIM in the Sungai Raya Religious Court Building project and to compare the results of work volume and construction cost calculations between the BIM method using Autodesk Revit and the conventional method based on the project’s Bill of Quantity (BoQ). The research method was conducted by modeling the structural elements of the building, including pile caps, tie beams, columns, beams, floor slabs, and reinforcements. The results of work volume and construction cost calculations obtained from Autodesk Revit were then compared with the project’s BoQ as the conventional method. Based on the analysis, an average difference of 6.3% in work volume and 5.6% in construction cost was found, with the Autodesk Revit calculations showing slightly lower values compared to the project’s BoQ.
Transformasi Pemasaran Tradisional Ke Digital Marketing: Analisis Peluang dan Tantangan pada Make Up Artist (MUA) Di Kota Bandung Resti Waliyani; Fauziah Nurcahya; Laesya Syifa F; Yani Iriani
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7604

Abstract

The transformation of marketing strategies from conventional methods to digital marketing has become an important factor in the development of the beauty industry, especially for Make Up Artists (MUAs) in Bandung. This study aims to analyze the impact of digital marketing through social media on increasing customer interest and the number of MUA service users, with a case study of Iwan Haadi, a professional MUA in Bandung who is active on Instagram (@iwanhaadimakeup) and TikTok (@iwanhaadi). This research employs a descriptive qualitative method with a case study approach, using interviews, observations of social media activities, and documentation of digital promotional content. The results show that before implementing digital marketing, MUAs generally relied on conventional promotions such as word of mouth and collaborations with wedding organizers. However, technological developments have encouraged many MUAs to shift to social media to expand their promotional reach. Based on observations of Iwan Haadi and 20 other MUAs in Bandung, around 85% have utilized social media particularly Instagram and TikTok to showcase their portfolios and client testimonials. The implementation of digital marketing strategies has proven to increase brand awareness and the number of customers by up to 65% over the past two years. In conclusion, digital marketing has a significant influence on increasing customers and competitiveness among MUAs in Bandung. Consistent and creative use of social media is the key to attracting customer interest and strengthening a professional image in the modern beauty industry.
Analisis Risiko dengan Pendekatan Semi-Kuantitatif untuk Stabilitas Lereng Highwall pada PIT B1 PT. Pancaran Surya Abadi Kabupaten Kutai Kartenegara Melki Marten; Revia Oktaviani; Windhu Nugroho; Tommy Trides; Albertus Juvensius Pontus
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7628

Abstract

Guaranteeing the geotechnical stability of slopes is an absolute prerequisite for the sustainability of open pit mining operations, considering the potential for multidimensional losses due to slope failure. The specific geological conditions at PIT B1 PT. Pancaran Surya Abadi, which is composed of sedimentary rocks (coal, sandstone, and claystone), are susceptible to degradation and softening, especially due to high rainfall that causes an increase in pore water pressure and a decrease in rock shear strength. This study aims to analyze the stability of highwall slopes using the Morgenstern-Price Method to determine the Safety Factor (SFF) value according to Ministerial Decree number 1827 K/30/MEM/2018, and continued with a semi-quantitative risk analysis. The analysis results show that the initial slope has a static SFF of 0.77 (Not Safe). After redesign, the recommended optimal single slope geometry is: sandstone (Height 5 m, Angle 20°, Berm 5 m) and claystone (Height 10 m, Angle 60°, Berm 5 m). This redesign resulted in a FK of 1.34 (Safe). Sensitivity analysis to groundwater level rise (GTL) showed that the GTL value remained safe (GTL ≥1.30) up to a 30% increase in GTL. However, a 40% to 80% increase in GTL caused the GTL to decrease (1.28–1.21), classified as Medium Risk. A 100% increase in GTL drastically reduced the GTL to 1.05, classified as High Risk. This study emphasizes the need for close monitoring and additional drainage to maintain the long-term stability of slopes under the influence of rainfall.
Penataan Sarana Prasarana Pasar di Kawasan Perumahan Vila Mutiara Cikarang Tata Kota dan Daerah Kerlima Hutagaol; Riza Fahlevi; Budi Harta Winata; Meliana Nur Evani
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7646

Abstract

A market is a place where buying and selling transactions take place between sellers and buyers at a specific time and place. This definition encompasses several key elements: the presence of sellers, buyers, a specific place and time, and a transaction agreement. Such markets are also known as traditional markets. "Surprise" or "overflow" markets are markets that open suddenly and briefly. "Surprise" or "overflow" markets are increasingly common in various locations. There are many reasons why people enjoy shopping at these markets. One example is the very low prices, especially compared to shopping at supermarkets or malls. Over time, with the increasing demand for basic necessities, the "surprise" market, located along the road in the Vila Mutiara Cikarang housing complex, has also experienced gradual development. The number of traders and buyers has increased, the trading space has expanded, and transaction times have decreased. This "surprise" market is located along the road in the Vila Mutiara Cikarang housing complex, starting from the second block to the end of the road exiting the housing complex. The "surprise" market operates during peak hours, especially in the morning, when this time is not only for market activities but also for many activities such as going to work, school, and other activities.
Perancangan Dual Axis Solar Tracker Guna Efesiensi Panel Surya di Atas Kapal Dhimas Bayu Kuncoro; Diana Alia; Teguh Pribadi; Edi Kurniawan; Samsul Huda
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7667

Abstract

This study aims to design and test a Dual Axis Solar Tracker to improve the energy absorption efficiency of solar panels on ships. The system is designed with a two-axis movement mechanism (horizontal and vertical) using a linear actuator motor controlled by Arduino Nano and ESP32. Testing was conducted on a 20 WP solar panel in Surabaya for 30 days, divided into three methods: 10 days using an LDR sensor, 10 days using an RTC, and 10 days in static conditions without a sensor. Voltage, current, and power data were measured every 30 minutes at 07.00–17.00 WIB. The test results show that the RTC method provides the highest and most stable output power, according to the sun's movement patterns in tropical areas, while the LDR method responds quickly to changes in light intensity but is less stable in changing weather. Static installation produces the lowest power. This system is able to maintain the panel orientation perpendicular to the sun's rays, thus increasing energy efficiency compared to static systems. These findings prove that dual-axis solar tracker technology, especially with an RTC sensor, is effective in dynamic maritime environments and can be a practical solution for optimizing renewable energy on ships. The most effective results using RTC sensors demonstrated the most stable and high power output, especially since the sun in tropical areas like Surabaya moves fairly consistently following a cyclical pattern. The success of this system not only increases the energy output of solar panels but also provides a practical solution for renewable energy applications in tropical climates.
Desain dan Analisa Pengaruh Jumlah Mata Pisau Serta Ukuran Mesh terhadap Kapasitas Bubuk Cabai yang dihasilkan pada Mesin Penepung Cabai Tipe Disk Mill Ffc 15 Haidar Alia Fika Rahma; Ach. Muhib Zainuri
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7668

Abstract

Post-harvest handling of chili in Indonesia is still largely done manually, requiring a relatively long processing time and producing products with a non-uniform level of fineness. This condition impacts low production efficiency and the quality of processed chili. Therefore, the application of appropriate technology in the form of a chili flour machine is needed to increase production capacity and consistency. This study aims to analyze the effect of the number of blades and mesh size on the production capacity of a disk mill type FFC 15 chili flour machine. The research method used was an experiment with a factorial design, involving two variations in the number of blades, namely three and four blades, and three variations in mesh size, namely 0.5 mm, 1 mm, and 3 mm. Each treatment combination was carried out three times. The results showed that the number of blades and mesh size had a significant effect on the machine's production capacity. The best treatment combination was obtained by using four blades with a mesh size of 3 mm, which resulted in a production capacity of 6.84 kg/hour and a Composite Desirability value of 0.983. These results indicate that proper arrangement of machine components can increase the efficiency of post-harvest chili processing.  
Analisis Komparatif Keamanan dan Kinerja Protokol Komunikasi pada Web of Things: Tinjauan Sistematis terhadap HTTP, CoAP, dan MQTT Faid Rama Daniy; Mirza Putra Firmansyah; Arief Muhammad Luthfi Yanuar; Putri Safira Augusta; Arief Arfriandi
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7684

Abstract

The integration of the Internet of Things (IoT) into the Web of Things (WoT) offers cross-platform interoperability but presents significant security challenges for constrained devices. This study aims to evaluate the effectiveness and efficiency of security mechanisms in three major WoT protocols: HTTP, CoAP, and MQTT. The research methodology employs a Systematic Literature Review (SLR) following PRISMA guidelines, reviewing 22 selected articles published between 2020 and 2025. The analysis utilizes PICOC criteria to compare communication overhead, computational consumption, and security mechanisms such as DTLS, OSCORE, and TLS integration. The results indicate that CoAP, combined with OSCORE and EDHOC mechanisms, provides the optimal balance between energy efficiency and end-to-end security for resource-constrained devices. MQTT demonstrates superiority in throughput and data transmission speed but requires additional security layers to ensure data confidentiality. Meanwhile, HTTP dominates in terms of Web service integration and access control, despite having the highest overhead burden. In conclusion, no single protocol is superior for all scenarios; the choice of protocol in WoT architecture must be based on the trade-offs between latency, resource efficiency, and system security requirements
Analisis Perbandingan Kinerja Struktur Gedung Akibat Penurunan Mutu Beton pada Proyek di Wilayah Lombok Achmad Fadli Erlangga; Rizqi Alghiffary
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7748

Abstract

This study analyzes a 10-floor multi-story lecture building in Lombok, focusing on the impact of concrete quality degradation on the building's performance. Due to limited material access, the actual on-site concrete quality changed from the design quality of fc 30 MPa to fc 24.9 MPa. The building structure was modeled in 3D using ETABS v22 software, and two structural models were compared: one with the design concrete quality (fc' 30 MPa) and one with the actual quality (fc' 24.9 MPa). The analysis evaluated dynamic performance, inelastic displacements, P-Delta effects, and reinforcement requirements. The comparison aimed to assess the impact of concrete degradation on structural stiffness, inter-story displacements, and reinforcement needs. The results show that concrete quality deterioration increases the structure's vibration period, inelastic displacement, and lateral forces due to P-Delta effects. While beam reinforcement requirements remain mostly unchanged, column reinforcement significantly increases, especially in columns with large axial forces. This study provides valuable insights into the technical consequences of concrete quality degradation and serves as a reference for evaluating structural redesigns in projects facing material limitations.

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