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Journal of Muhammadiyah’s Application Technology
Published by Universitas Muhammadiyah Makassar
ISSN : -     EISSN : 30313082     DOI : 10.26618/jumptech
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering
Journal of Muhammadiyah’s Application Technology (JUMPTECH) Jumptech (Journal of Muhammadiyah’s Application Technology) is an online periodical journal of science that is published three times a year, in February, June and October by Faculty of Engineering, Muhammadiyah University of Makassar, Indonesia, with a registered number ISSN 3031-3082 (online). Jumptech is a media to publish the results of scientific research academics, practitioners, and observers in the field of engineering science including irrigation civil engineering, architecture, electrical engineering, computer science, urban and regional planning. Jumptech focuses on publishing manuscripts within the following areas: Irrigation Civil Engineering: Hydrology; Hydraulics; Environmental Impacts; Solute and Sediment Transport; Soil Salinity; Water‐Quality Control; Sustainability; Water Management and Conservation; Evapotranspiration; Soil‐Water Flow; Design, Operations and Maintenance of Irrigation and Drainage Infrastructure; Development and Application of Technology; Economics, Energy Use, and Regulation in Irrigation and Drainage Engineering. Electrical Engineering and Computer Science: Power Systems: Generator, Power Distribution, Electrical Power Convertion, Protection Systems, Electrical Material Signal, System, and Electronics: Digital Signal Processing, Image Processing, Robotic Systems, Control Systems, Embedded Systems Communication Systems: Telecommunication, Wireless Communications, Computer Network Information Technology: Software Engineering, Data Mining, Multimedia, Mobile Computing, Parallel / Distributed Computing, Artificial Intelligent, Computer Graphic, AR/VR Architecture, Urban and Regional Planning : Architectural Planning and Design; Environmental Engineering; Building Science and Technology; Project Management; Structural Engineering; Building Materials; Building Intelligent Modelling (BIM); Theory and Architectural Criticism; Interior Design; Urban Planning; Housing and Settlement Design; Landscape Architecture; Architectural Conservation and Heritage; Study of Islamic Architecture; Regional and City Studies; Building Management and Built Environment; Infrastructure and Transport; Development Policy and Economics; Behavior, Space and Culture; Tourism and Space. Email : jumptech-ft@unismuh.ac.id
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 335 Documents
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Pengaruh Pembangunan Kawasan PT. Indonesia Pomalaa Industrial Park Terhadap Kondisi Sosial Ekonomi Akibat Perubahan Penggunaan Lahan di Kecamatan Pomalaa Kabupaten Kolaka Utara Nurul Hudaya; M. Nurhidayat; Nini Apriani Rumata
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/byq7se06

Abstract

ABSTRAK: Pembangunan kawasan industri PT. Indonesia Pomalaa Industrial Park (PT. IPIP) sebagai bagian dari Proyek Strategis Nasional membawa dampak signifikan terhadap penggunaan lahan dan kondisi sosial ekonomi masyarakat Kecamatan Pomalaa, Kabupaten Kolaka. Penelitian ini bertujuan untuk mengidentifikasi kondisi dan perubahan penggunaan lahan serta menganalisis pengaruh pembangunan kawasan industri terhadap aspek sosial ekonomi masyarakat. Metode yang digunakan adalah deskriptif kualitatif dan kuantitatif dengan teknik analisis spasial, interpretasi citra, dan regresi linear berganda. Hasil penelitian menunjukkan bahwa pembangunan kawasan industri mengubah penggunaan lahan dari pertanian dan hutan menjadi industri dan permukiman, serta mempengaruhi struktur sosial ekonomi masyarakat, termasuk pendapatan, jenis pekerjaan, dan biaya hidup. Penelitian ini merekomendasikan perencanaan tata ruang yang berkelanjutan agar dampak negatif dapat diminimalkan.KATA KUNCIKawasan industri, penggunaan lahan, perubahan sosial ekonomi, PT. IPIP, Pomalaa. ABSTRACT: The development of the PT. Indonesia Pomalaa Industrial Park (PT. IPIP) industrial area, as part of a National Strategic Project, has significantly affected land use and the socio-economic conditions of the community in Pomalaa District, Kolaka Regency. This study aims to identify the current and changing land use and analyze the impact of industrial development on the socio-economic aspects of the local community. The research method combines qualitative and quantitative descriptive approaches using spatial analysis, image interpretation, and multiple linear regression. The results show that industrial development has converted agricultural and forest land into industrial and residential areas, influencing socio-economic structures such as income, employment, and cost of living. This research recommends sustainable spatial planning to minimize negative impactsKeywords:Industrial area, land use, socio-economic changes, PT. IPIP, Pomalaa
Analisis Kesesuaian Lahan Kawasan Permukiman Terhadap Daerah Rawan Bencana Banjir di Kecamatan Biringkanaya Kota Makassar Karmila Dewi; Nini Apriani Rumata; Soemitro Emin Praja
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/ace4ez68

Abstract

ABSTRAK: Lahan permukiman merupakan kebutuhan dasar manusia yang berfungsi sebagai tempat tinggal dan mendukung kehidupan masyarakat. Dengan meningkatnya jumlah penduduk, kebutuhan akan lahan permukiman juga meningkat, sementara ketersediaan lahan yang sesuai terbatas. Kondisi ini menjadi tantangan dalam perencanaan tata ruang yang aman dan berkelanjutan, terutama di kawasan rawan bencana seperti banjir. Penelitian ini bertujuan untuk menganalisis kesesuaian lahan permukiman terhadap daerah rawan bencana banjir di Kecamatan Biringkanaya, Kota Makassar. Metode yang digunakan adalah Mix Method, dengan pendekatan spasial melalui teknik overlay untuk menganalisis data keruangan, serta metode deskriptif untuk menjelaskan hasil analisis. Hasil penelitian menunjukkan bahwa kesesuaian lahan permukiman di Kecamatan Biringkanaya terbagi ke dalam empat kategori: kategori Cukup Sesuai paling luas seluas 2.026,85 Ha (54,30%), diikuti Sesuai Marginal seluas 1.324,45 Ha (35,48%), Tidak Sesuai seluas 305,10 Ha (8,17%), dan Sangat Sesuai seluas 76,27 Ha (2,04%). KATA KUNCI Kesesuaian Lahan, Permukiman, Banjir, Mix Method, Overlay, ArcGIS.   ABSTRACT: Residential land is a basic human need that serves as a place to live and supports community life. With the increasing population, the need for residential land is also increasing, while the availability of suitable land is limited. This condition poses a challenge in planning safe and sustainable spatial planning, especially in disaster-prone areas such as floods. This study aims to analyze the suitability of residential land in flood-prone areas in Biringkanaya District, Makassar City. The method used is a mixed method, with a spatial approach using overlay techniques to analyze spatial data, as well as a descriptive method to explain the analysis results. The results of the study show that the suitability of residential land in Biringkanaya District is divided into four categories: the Most Suitable category covers the largest area of 2,026.85 Ha (54.30%), followed by Marginally Suitable covering 1,324.45 Ha (35.48%), Unsuitable covering an area of 305.10 Ha (8.17%), and Very Suitable covering an area of 76.27 Ha (2.04%). Keywords: Land Suitability, Settlements, Floods, Mix Method, Overlay, ArcGIS.
Analisis Perubahan Morfologi Sungai Akibat Penambagan di Sungai Saddang Kab. Enrekang Sri Wahyuningsi; Muhammad Yunus Ali; Marupah Marupah
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/0qc08a19

Abstract

Bertujuan untuk menganalisis dampak kegiatan penambangan pasir terhadap perubahan morfologi Sungai Saddang di Desa Cemba, Kabupaten Enrekang. Metode penelitian menggunakan pendekatan survei lapangan, mengukur parameter kunci seperti kecepatan aliran, kedalaman, dan lebar, dan analisis spasial menggunakan perangkat lunak ArcGIS untuk membandingkan kondisi pada tahun 2015 dan 2025. Hasil penelitian menunjukkan perubahan morfologi yang signifikan, ditandai dengan pelebaran sungai rata-rata hingga 42% di lokasi penambangan, pendangkalan, percabangan alur sungai, dan pembentukan kolam galian. Kegiatan penambangan juga mengakibatkan erosi tebing, penurunan kualitas air, kerusakan vegetasi riparian, dan peningkatan risiko banjir dan tanah longsor. Kesimpulan penelitian ini menegaskan bahwa penambangan pasir memiliki dampak yang signifikan terhadap degradasi fisik sungai dan ekosistem di sekitarnya. Oleh karena itu, pengelolaan penambangan yang berwawasan lingkungan diperlukan untuk mencegah kerusakan lebih lanjut pada morfologi sungai di masa mendatang. KATA KUNCI Morfologi sungai, penambangan pasir, Sungai Saddang, erosi, ArcGIS   ABSTRACT: This study aims to analyze the impact of sand mining activities on the morphological changes of the Saddang River in Cemba Village, Enrekang Regency. The research method used a field survey approach, measuring key parameters such as flow velocity, depth, and width, and spatial analysis using ArcGIS software to compare conditions in 2015 and 2025.The results showed significant morphological changes, characterized by an average river widening of up to 42% at the mining site, silting, branching of the river channel, and the formation of excavated ponds. Mining activities also resulted in bank erosion, decreased water quality, damage to riparian vegetation, and an increased risk of flooding and landslides. The study's conclusions confirm that sand mining has a significant impact on the physical degradation of the river and its surrounding ecosystem. Therefore, environmentally sound mining management is necessary to prevent further damage to the river's morphology in the future. Keywords: River morphology, sand mining Saddang River, erosion, ArcGIS
Pengaruh Keberadaan Tempat Pembuangan Akhir (TPA) Antang Terhadap Kondisi Sosial Ekonomi Masyarakat Kelurahan Tamangapa Kecamatan Manggala Kota Makassar Muh. Aidil Zulfitra; Nini Apriani Rumata; Fathurrahman Burhanuddin
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/5cw0yr24

Abstract

ABSTRAK: Penelitian ini bertujuan untuk menganalisis kondisi sosial dan ekonomi masyarakat di sekitar Tempat Pembuangan Akhir (TPA) Antang serta mengidentifikasi dampak keberadaan TPA terhadap kehidupan sosial ekonomi warga Kelurahan Tamangapa, Kecamatan Manggala, Kota Makassar. Penelitian menggunakan pendekatan kuantitatif dengan metode survei melalui penyebaran kuesioner kepada 391 responden yang ditentukan menggunakan rumus Slovin. Analisis data dilakukan dengan Analisis Deskriptif untuk menggambarkan karakteristik dan kondisi sosial ekonomi masyarakat, serta uji Chi-Square untuk mengetahui hubungan antara variabel sosial dan ekonomi dengan keberadaan TPA. Hasil penelitian menunjukkan bahwa kondisi sosial masyarakat dipengaruhi oleh faktor kesehatan, kenyamanan lingkungan, dan interaksi sosial, sementara kondisi ekonomi didominasi oleh pekerjaan sektor informal yang berkaitan dengan aktivitas TPA. Uji Chi-Square mengonfirmasi bahwa beberapa variabel sosial dan ekonomi memiliki hubungan signifikan dengan keberadaan TPA Antang. Secara keseluruhan, TPA memberikan dampak ganda: menimbulkan gangguan lingkungan namun juga membuka peluang ekonomi bagi masyarakat sekitar. KATA KUNCITPA Antang, Kondisi Sosial Ekonomi, Masyarakat, Sampah, Chi-Square. ABSTRACT: This study aims to analyze the social and economic conditions of communities living around the Antang Final Disposal Site (TPA Antang) and to identify the impacts of the facility on the social and economic aspects of residents in Tamangapa Urban Village, Manggala District, Makassar City. A quantitative research approach was employed using a survey questionnaire distributed to 391 respondents determined through the Slovin formula. Data were analyzed using descriptive statistics to describe the demographic profile and socio-economic conditions, as well as the Chi-Square test to examine the relationship between social and economic variables and the existence of the TPA. The results indicate that social conditions are influenced by health factors, environmental comfort, and social interactions, while economic conditions are dominated by informal sector jobs related to TPA activities. The Chi-Square test confirmed that several social and economic variables have a significant relationship with the presence of TPA Antang. Overall, the TPA generates dual impacts: environmental disturbances and socio-economic opportunities for surrounding communities.Keywords:Antang landfill, socio-economic conditions, community, waste management, Chi-Square.
Pendekatan Arsitektur Inklusif pada Perancangan Mall Pelayanan Publik di Kabupaten Takalar Muhammad Abduh; Andi Yusri; Irnawaty Idrus; Citra Amalia Amal; Andi Syahriyunita Syahruddin; Muhammad Syarif
Journal of Muhammadiyah’s Application Technology Vol. 4 No. 3 (2025)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/hq1v5p61

Abstract

ABSTRAKMall Pelayanan Publik (MPP) merupakan inovasi pelayanan terpadu yang bertujuan meningkatkan efisiensi dan kualitas layanan pemerintah kepada masyarakat. Namun, banyak fasilitas MPP yang belum sepenuhnya memperhatikan aspek aksesibilitas bagi seluruh kelompok pengguna, khususnya penyandang disabilitas, lansia, ibu hamil, dan kelompok rentan lainnya. Penelitian ini bertujuan merancang Mall Pelayanan Publik di Kabupaten Takalar dengan pendekatan arsitektur inklusif guna mewujudkan fasilitas pelayanan publik yang adil, setara, dan mudah diakses oleh semua kalangan. Metode yang digunakan adalah pendekatan deskriptif kualitatif dengan metode perancangan arsitektur, melalui studi literatur, observasi tapak, analisis kebutuhan ruang, serta studi banding terhadap proyek sejenis di dalam dan luar negeri. Hasil perancangan menunjukkan bahwa penerapan prinsip universal design mampu meningkatkan kualitas aksesibilitas melalui penyediaan ramp standar, lift, sirkulasi ramah disabilitas, sistem wayfinding berbasis visual dan warna, serta fasilitas pendukung seperti toilet disabilitas, ruang laktasi, dan ruang bermain anak. Selain itu, pemilihan material yang aman dan tidak licin turut meningkatkan kenyamanan dan keselamatan pengguna. Penelitian ini menegaskan bahwa integrasi prinsip arsitektur inklusif sejak tahap perencanaan sangat penting dalam menciptakan ruang pelayanan publik yang manusiawi, responsif, dan berkelanjutan.Kata Kunci: Arsitektur Inklusif, Pelayanan Publik, Disabilitas, Aksesibilitas, Universal Design.ABSTRACTPublic Service Malls (Mall Pelayanan Publik/MPP) are integrated service facilities aimed at improving the efficiency and quality of public services. However, many existing MPP buildings have not fully considered accessibility for all user groups, particularly people with disabilities, the elderly, pregnant women, and other vulnerable communities. This study aims to design a Public Service Mall in Takalar Regency using an inclusive architectural approach to ensure equal, safe, and convenient access to public services. The research adopts a qualitative descriptive method based on architectural design processes, including literature review, site observation, spatial needs analysis, and comparative studies of similar projects at national and international levels. The design results demonstrate that the application of universal design principles significantly improves accessibility through standard-compliant ramps, elevators, disability-friendly circulation, visual and color-based wayfinding systems, and inclusive supporting facilities such as accessible toilets, lactation rooms, and child-friendly spaces. In addition, the use of safe and non-slip materials enhances user comfort and safety. This study emphasizes that integrating inclusive design principles from the early planning stage is essential for creating public service facilities that are humane, responsive, and sustainable, while also supporting equitable access to government services.Keyworsds: Inclusive Architecture, Publik Service, Disability, Accesibility, Universal Design.
Pengaruh Pasang Surut Terhadap Difraksi Gelombang di Pulau Gusung, Kota Makassar Putri Arianti Amaliah; Hamzah Al Imran; Kasmawati
Journal of Muhammadiyah’s Application Technology Vol. 4 No. 3 (2025)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/57xrvf87

Abstract

ABSTRAK: Pulau Gusung merupakan pulau pasir di pesisir Kota Makassar yang dipengaruhi oleh dinamika oseanografi, khususnya pasang surut dan gelombang laut. Interaksi gelombang dengan pulau menyebabkan terjadinya difraksi gelombang yang memengaruhi distribusi energi gelombang dan kondisi perairan di sekitarnya. Penelitian ini bertujuan untuk menganalisis tipe pasang surut serta pengaruh pasang surut terhadap difraksi gelombang di Pulau Gusung. Metode yang digunakan adalah pendekatan kuantitatif dengan memanfaatkan data sekunder pasang surut, angin, dan gelombang dari BMKG periode 2019–2023. Analisis pasang surut dilakukan menggunakan metode Admiralty untuk menentukan konstanta harmonik dan tipe pasang surut, sedangkan karakteristik gelombang dianalisis melalui peramalan gelombang dan perhitungan koefisien difraksi. Hasil penelitian menunjukkan bahwa Pulau Gusung memiliki tipe pasang surut campuran condong ke harian tunggal. Perbedaan elevasi muka air laut saat pasang dan surut memengaruhi nilai koefisien difraksi dan tinggi gelombang di belakang pulau. Kesimpulannya, pasang surut berperan signifikan terhadap difraksi gelombang dan berimplikasi penting bagi pengelolaan pulau kecil dan perencanaan wilayah pesisir. KATA KUNCI Pasang Surut, Difraksi Gelombang, Metode Admiralty, Pulau Gusung   ABSTRACT: Gusung Island is a sandy island located in the coastal area of Makassar City and is influenced by oceanographic dynamics, particularly tides and ocean waves. The interaction between waves and the island causes wave diffraction, which affects the distribution of wave energy and the surrounding water conditions. This study aims to analyze the tidal type and the influence of tides on wave diffraction around Gusung Island. A quantitative approach was applied using secondary data on tides, wind, and waves obtained from the Meteorology, Climatology, and Geophysics Agency (BMKG) for the period 2019–2023. Tidal analysis was conducted using the Admiralty method to determine harmonic constants and tidal types, while wave characteristics were analyzed through wave forecasting and diffraction coefficient calculations. The results indicate that Gusung Island experiences a mixed tide with a predominance of diurnal characteristics. Variations in sea level elevation during high and low tide conditions affect the diffraction coefficient and wave height behind the island. In conclusion, tides play a significant role in wave diffraction and have important implications for small island management and coastal area planning. Keywords: Tides, Wave Diffraction, Admiralty Method, Gusung Island  
Pengukuran Level Pembebanan dan Ketakseimbangan untuk Transformator Gedung Fkip Unismuh Makassar Syaharani Nurjannah; Muhammad Alif A. Ramadhan; Andi Faharuddin; Abdul Hafid
Journal of Muhammadiyah’s Application Technology Vol. 4 No. 3 (2025)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/98ccna61

Abstract

ABSTRAK: Ketersediaan energi listrik yang stabil dan andal sangat penting untuk mendukung aktivitas akademik di lingkungan perguruan tinggi. Salah satu permasalahan yang sering terjadi pada sistem distribusi listrik adalah ketakseimbangan pembebanan transformator, yang dapat menurunkan efisiensi dan memperpendek umur peralatan. Penelitian ini bertujuan untuk menilai level pembebanan dan tingkat ketakseimbangan pada transformator distribusi Kampus Universitas Muhammadiyah Makassar. Metode penelitian dilakukan melalui pengukuran arus dan tegangan pada setiap fase serta pemodelan sistem menggunakan perangkat lunak PSCAD untuk memperoleh gambaran kondisi operasional transformator. Hasil penelitian menunjukkan bahwa tingkat pembebanan transformator berada pada kisaran 60–80% dari kapasitas nominal, sedangkan nilai ketakseimbangan beban mengalami fluktuasi namun masih berada dalam batas toleransi standar SPLN No. 17 Tahun 2014. Kesimpulan penelitian ini menunjukkan bahwa transformator masih beroperasi dalam kondisi cukup aman. Implikasi dari penelitian ini adalah perlunya pemantauan dan penyeimbangan beban secara berkala guna meningkatkan efisiensi sistem dan keandalan pasokan listrik kampus. KATA KUNCI Transformator distribusi, pembebanan, ketakseimbangan beban, PSCAD.   ABSTRACT: The availability of stable and reliable electrical energy is essential to support academic activities in higher education institutions. One common issue in electrical distribution systems is load imbalance in distribution transformers, which can reduce efficiency and shorten equipment lifespan. This study aims to assess the loading level and load imbalance of a distribution transformer at the Universitas Muhammadiyah Makassar campus. The research method involved direct measurements of current and voltage on each phase, combined with system modeling using PSCAD software to represent the transformer’s operational conditions. The results indicate that the transformer loading level ranges between 60–80% of its nominal capacity, while load imbalance values fluctuate but remain within the allowable limits specified by SPLN No. 17 of 2014. The study concludes that the transformer operates under acceptable conditions. The implication of this research highlights the importance of regular load monitoring and phase load balancing to improve system efficiency, maintain transformer reliability, and ensure continuous electrical supply for campus activities   Keywords: Distribution transformer, loading level, load imbalance, PSCAD.  
Pengembangan Sistem Pemantauan Ketinggian Air Bendungan PT. Tombolo Energy Menggunakan NodeMCU ( ESP8266 ) Asnawi Ramli; Abd Halik Lateko Lateko; Adriani Adriani
Journal of Muhammadiyah’s Application Technology Vol. 4 No. 3 (2025)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/t0zchq29

Abstract

ABSTRAKPemantauan level air pada bendungan memiliki peranan penting dalam menjaga keselamatan dan efisiensi pengelolaan sumber daya air. Namun, sistem pemantauan yang masih dilakukan secara manual berpotensi menimbulkan keterlambatan informasi dan risiko operasional. Penelitian ini bertujuan untuk merancang dan membangun sistem monitoring level air pada Bendungan PT. Tombolo Energy berbasis NodeMCU V3 (ESP8266). Metode yang digunakan adalah metode eksperimental dengan tahapan perancangan perangkat keras dan perangkat lunak, pengujian, serta evaluasi kinerja sistem. Sistem memanfaatkan sensor ultrasonik HC-SR04 untuk mengukur ketinggian air dan mengirimkan data secara real-time melalui jaringan Wi-Fi ke aplikasi Blynk sebagai media pemantauan berbasis Internet of Things (IoT) serta ditampilkan pada LCD. Hasil pengujian menunjukkan sistem mampu memantau level air dengan akurasi tinggi, ditunjukkan oleh nilai rata-rata persentase error sebesar 0,9558% dibandingkan pengukuran manual. Kesimpulannya, sistem yang dirancang bekerja secara andal dan responsif. Implikasi penelitian ini adalah peningkatan keselamatan bendungan, efisiensi pemantauan, serta dukungan pengambilan keputusan berbasis data real-time.Kata Kunci: Monitoring Level Air, Bendungan, NodeMCU ESP8266, Sensor Ultrasonik HC-SR04, Internet of Things (IoT).   ABSTRACTMonitoring water levels in dams plays an important role in maintaining safety and efficiency in water resource management. However, water level monitoring systems that are still performed manually can lead to delays in information delivery and increased operational risks. This study aims to design and develop a water level monitoring system at the PT. Tombolo Energy Dam based on NodeMCU V3 (ESP8266). The research method employed is an experimental method consisting of hardware and software design, testing, and system performance evaluation stages. The system utilizes an HC-SR04 ultrasonic sensor to measure water levels and transmits data in real time via a Wi-Fi network to the Blynk application as an Internet of Things (IoT)-based monitoring platform, with additional display on an LCD. The test results show that the system is capable of monitoring water levels with high accuracy, as indicated by an average percentage error of 0.9558% compared to manual measurements. In conclusion, the designed system operates reliably and responsively. The implications of this study include improved dam safety, increased monitoring efficiency, and support for real-time data-based decision making.Keywords: Water level monitoring, dam, NodeMCU ESP8266, HC-SR04 ultrasonic sensor, Internet of Things (IoT).  
Analisis Akurasi Fault Locator Berbasis Impedansi terhadap Variasi Resistansi Gangguan pada Penyulang Rindam Ahmad Fajar; Muhammad Fadli Tukmuly; Andi Faharuddin; Abdul Hafid
Journal of Muhammadiyah’s Application Technology Vol. 4 No. 3 (2025)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/ptsrx163

Abstract

ABSTRAKSistem distribusi tenaga listrik memiliki tingkat kerentanan yang tinggi terhadap gangguan, khususnya gangguan hubung singkat yang dapat menurunkan keandalan penyaluran energi listrik dan memperpanjang waktu pemulihan sistem. Oleh karena itu, diperlukan metode yang mampu mengidentifikasi lokasi gangguan secara cepat dan akurat. Penelitian ini bertujuan untuk memodelkan dan menganalisis kinerja fault locator  berbasis impedansi pada saluran distribusi Penyulang Rindam menggunakan perangkat lunak PSCAD/EMTDC. Metodologi penelitian meliputi pemodelan sumber Thevenin, transformator, saluran distribusi, serta sistem beban berdasarkan data aktual penyulang. Simulasi gangguan dilakukan pada beberapa titik lokasi, yaitu 25%, 50%, dan 75% dari panjang saluran, dengan variasi resistansi gangguan sebesar 0,001 Ω, 2 Ω, dan 5 Ω. Parameter arus dan tegangan hasil simulasi digunakan untuk menghitung impedansi gangguan dan menentukan estimasi lokasi gangguan. Hasil penelitian menunjukkan bahwa metode fault locator  berbasis impedansi memiliki tingkat akurasi yang sangat baik pada gangguan dengan resistansi rendah, di mana persentase error estimasi lokasi berada di bawah 1%.Kata Kunci: Fault locator , Impedansi,PSCAD, Lokasi gangguan, Simulasi ABSTRACTElectric power distribution systems are highly vulnerable to disturbances, particularly short-circuit faults, which can reduce the reliability of power delivery and extend system recovery time. Therefore, a method capable of identifying fault locations quickly and accurately is required. This study aims to model and analyze the performance of an impedance-based fault locator  on the Rindam distribution feeder using PSCAD/EMTDC software. The research methodology includes modeling the Thevenin equivalent source, transformer, distribution line, and load system based on actual feeder data. Fault simulations were conducted at several locations, namely 25%, 50%, and 75% of the feeder length, with fault resistance variations of 0.001 Ω, 2 Ω, and 5 Ω. The simulated current and voltage parameters were used to calculate fault impedance and estimate the fault location. The results show that the impedance-based fault locator  method provides very high accuracy under low fault resistance conditions, with fault location estimation errors below 1%.Keyworsds: Fault locator , Impedance, PSCAD, fault location, Simulation  
Kinerja Penstock Terhadap Fluktuasi Debit pada PLTA Bili Bili Bagus Fadil Pratama; Farouk Maricar; Abd. Rakhim Nanda
Journal of Muhammadiyah’s Application Technology Vol. 5 No. 1 (2026)
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/xvxrpj51

Abstract

ABSTRAK: Penstock merupakan komponen vital dalam sistem pembangkitan listrik tenaga air karena berfungsi menyalurkan aliran air bertekanan dari bendungan menuju turbin. Kinerja penstock sangat dipengaruhi oleh kondisi hidraulik di dalamnya, khususnya fluktuasi debit yang dapat menimbulkan perubahan tekanan, kehilangan energi, dan potensi terjadinya water hammer. Penelitian ini bertujuan untuk mengkaji kinerja penstock pada PLTA Bili Bili di bawah kondisi variasi debit operasi, serta menganalisis pengaruh fluktuasi debit terhadap parameter-parameter hidraulik utama seperti tekanan, kecepatan aliran, dan efisiensi penyaluran energi. Data yang dikaji meliputi karakteristik penstock, variasi debit harian, tekanan operasi, serta data kinerja turbin. Analisis dilakukan untuk mengetahui hubungan antara perubahan debit dengan perubahan tekanan internal, head loss, dan respons sistem terhadap potensi transien aliran. Hasil penelitian menunjukkan bahwa fluktuasi debit memiliki pengaruh signifikan terhadap karakteristik hidraulik penstock. Pada debit tinggi terjadi peningkatan tekanan statis dan kehilangan energi yang lebih besar, sedangkan pada debit rendah penurunan tekanan menyebabkan efisiensi penyaluran energi menurun. Studi ini diharapkan dapat memberikan kontribusi dalam optimasi operasi penstock dan peningkatan keandalan sistem pembangkitan pada PLTA Bili Bili.KATA KUNCIPenstock, Fluktuasi Debit, Hidraulika Penstock, PLTA Bili Bili, Water hammer, Head loss. ABSTRACT: Penstock is a vital component in a hydropower generation system because it functions to channel the flow of pressurized water from the dam to the turbine. The performance of the penstock is greatly influenced by the hydraulic conditions in it, especially discharge fluctuations that can cause pressure changes, energy loss, and the potential for water hammering. This study aims to examine the performance of the penstock in the Bili Bili hydropower plant under conditions of operating discharge variations, as well as analyze the effect of discharge fluctuations on key hydraulic parameters such as pressure, flow speed, and energy distribution efficiency. The data studied included penstock characteristics, daily discharge variations, operating pressure, and turbine performance data. The results of the study show that the discharge fluctuations have a significant influence on the hydraulic characteristics of the penstock. At high discharge there is an increase in static pressure and greater energy loss, while at low discharge there is a decrease in pressure causing the efficiency of energy distribution to decrease. This study is expected to contribute to the optimization of penstock operations and improve the reliability of the generation system at the Bili Bili hydropower plant.Keywords:Penstock, Discharge Fluctuation, Penstock Hydraulics, Bil Hydropower, Water hammer, Head loss

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