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Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation
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Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 900 Documents
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Studi Perkiraan Pembentukan Indeks Scale Brine Sintetik Air Formasi (Variabel CO3 dalam Air Formasi) Astuti, Dian Indri; Sri Rahayu Gusmawarni; M Sri Prasetyo Budi
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Decrease in oil production that occurs due to the presence of solids in production equipment caused by ion imbalances in formation water.due to ion imbalance in formation water. Scale formation can be influenced by several factors including the property characteristics property characteristics of the produced fluid, especially in heavy oil types, due to changes in temperature, pressure, pH, and mineral composition of formation water that exceeds the solubility limit. solubility triggers the formation of scale solids. In oil wells will usually formation water containing ions of calcium, barium, carbonate, sulphate, magnesium, sodium and chloride. In this study, the manufacture of synthetic brine with a composition that resembles field formation water as an alternative in laboratory scale scale index measurement testing solutions and and save time so as to speed up testing. Manufacture of synthetic brine this synthetic brine can utilise materials from the laboratory such as calcium, barium, carbonate, sulphate, magnesium, sodium and chloride dissolved in distilled water. Then experiments were carried out to change the mass of one or in the formation water formula on several mineral ions as a key in making synthetic brine.key in making synthetic brine that resembles the conditions in the field. Brine testing using the compleximetric method of formation water analysis chemically and physically like testing formation water from the field.
Analisis Pengaruh Arah Lemparan Batuan Berdasarkan Initiation Point Terhadap Ground Vibration Pada Aktivitas Peledakan Di Pit Blok Osor Timur PT. Katika Selabumi Mining Kabupaten Kutai Kartanegara: Analisis Ground Vibration Suhari, Josh Immanuel Stevano; Revia Oktaviani; Albertus Juvensius Pontus
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Ground vibrations are waves that occur in the ground caused by an energy source. Ground vibrations due to blasting activity can affect buildings around the blasting area, including residential areas. Large peak particle velocity (PPV) can cause damage to people's homes. Data collection was carried out by dividing the data population into two, the direction of rock throwing based on the initiation point away from the measurement point and the direction of rock throwing based on the initiation point approaching the measurement point. During the research, values ​​were obtained PPV maximum is 3.03 mm/s with the initiation point close to the measurement point and there is a free face and walls at the blasting location, the PPV minimum of 0.4 mm/s with the initiation point away from the measurement point and there is a free face at the blasting location. Based on the results of calculating the predicted PPV value, an error percentage of 15.74% was obtained with the actual PPV value at the research location. From the results of the analysis and calculations, it was found that the direction of the rock throw with the initiation point closer to the measurement point had a greater value.
Perencanaan Pembangkit Listrik Tenaga Surya Di Gedung A Kampus ITNY : Perencanaan Pembangkit Listrik Tenaga Surya Di Gedung A Kampus ITNY nopriantoro, sulung; Diah Suwarti Widiastuti; Daru Sugati
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The utilization of New and Renewable Energy is being accelerated by the Indonesian Government. And one of the renewable energy resources that can be explored is solar energy. The potential for solar energy in Indonesia is very large, which is around 4.8 kWh/m2 or equivalent to 112,000 GWp, but only around 10 MWp has been utilized. The percentage of the value of Solar Power Plants that have been built in Indonesia is also only around 0.05% of the total power plants under the operation of PT. PLN (Persero). The ITNY campus has several tall buildings that have elongated roof contours and without shadow barriers from other buildings. Therefore, in this study, a Solar Power Plant plan will be made that will be installed on the roof of one of the buildings on the ITNY campus and operate On-Grid with electricity from PLN. The roof of the building used is Building A with an effective roof area that can be installed with a PLTS installation of 644 m2 divided into two sides, namely north and south. This On-Grid PLTS system will serve the electrical load of Building A of around 105,000 kW with loads in the form of lighting, power outlets and AC power. The result of this planning is a Roof-Top PLTS On-Grid system design that serves the electrical load for Building A. So it is hoped that with this PLTS system it is expected to reduce the monthly electricity bill of the ITNY Campus.
Mortar Geopolymer Fly Ash dan Karbon Aktif Cangkang Kelapa Sawit Triana, Dessy
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Environmentally friendly construction development of sustainable and economical building materials. Geopolymers are increasingly in demand, by utilizing waste. Waste materials that mostly contain silicon (Si) and aluminium (Al) are the source materials for making geopolymers. Geopolymers are artificial polymer composites that are environmentally friendly sustainable products. Fly ashas a binder in geopolymers, its physical and chemical characteristics help the geopolymerization reaction. High content of alumino silicate in alkaline. Sustainable building material construction combines industrial and agricultural waste in the form of activated carbon of palm shells. The use of waste materials solves the problem of waste disposal and minimizes the demand for natural resources for mortar production. This study produces geopolymer mortar using fly ash as a substitute for cement and activated carbon of palm shells as a substitute for sand.
Analisis Kemampugaruan Batuan Berdasarkan Metode Seismic Pada Penambangan Batupasir Provinsi Kalimantan Timur : Analisis Kemampugaruan Batuan Bayu Indra Dermawan; Agus Winarno; Shalaho Dina Devy; Tommy Trides; Revia Oktaviani
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

In mining activities, high risk is one of the main aspects that must be anticipated, especially regarding the geomechanical complexity of the rocks being excavated. Selecting the right excavation method can greatly impact operational efficiency and safety. In this context, direct digging, ripping, and blasting are the three main options, tailored to the characteristics of the rock.To determine the most suitable method, a rock rippability study is essential. This study can be conducted using direct or indirect methods. In this research, the seismic method was used to assess rock strength based on the seismic wave velocity, which was recorded at 1437.80 m/s. This value serves as a reference for selecting appropriate equipment for ripping activities.Given these characteristics, the recommended equipment for ripping is the D8T/D8R dozer from Caterpillar or the D275A/D275AX dozer from Komatsu. This equipment choice is based on its capability to handle rocks with strength levels reflected by the measured seismic wave velocity.
Pengaruh Temperatur Proses Austemper pada Besi Tuang Paduan Fe-Al-C Terhadap Struktur Mikro dan Sifat Mekanik Adesty Suhandhia Putra, Muhammad Eki; Kartikasari, Ratna; Agus Jayatun, Yohanes
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The addition of aluminum (Al) to the alloy system can improve corrosion and oxidation resistance but has the disadvantage of having brittle properties, the austemper process can increase strength, toughness, reduce distortion and reduce brittle properties. The stages of the austemper process start from heating at 900oC for 1 hour, then continued immersion in molten salt (KNO3 55% + NaNO3 45%) at temperatures of 300oC, 350oC, and 400oC, for 20 minutes and continued immersion in water media. The tests carried out were microstructure tests using an optical microscope, hardness tests using the Brinnel method, and tensile strength tests. The chemical composition test results show that the Fe-Al-C alloy contains the main element Fe by 89.40%, and the main alloying element Al by 0.98%, C 5.41%, Si 1.69%, including Al alloy cast iron, Fe-Al-C alloy has a hardness of 188.2 Kg/mm2. After austemper process hardness rose to 325.4 Kg/mm2 at 300 ° C, this is due to the change of pearlite structure into bainite structure. The tensile test results show that the Fe-Al-C alloy has a tensile stress of 188.2 Mpa and a strain value of 1.1% and then drops at austemper temperature of 300 ° C with a tensile stress value of 44 Mpa and a strain of 0.4%, this is due to the large graphite structure and fractures and the presence of bainite structures.
Peningkatan Pemahaman Mahasiswa Tentang Potensi dan Pengelolaan Tambang di Indonesia Sutrisno, Agung Dwi; Astuti, Meti
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Pengabdian Kepada Masyarakat)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pemahaman mahasiswa mengenai potensi sumber daya tambang di Indonesia serta tantangan dalam pengelolaannya. Kegiatan dilaksanakan melalui penyuluhan kepada mahasiswa Sekolah Tinggi Ekonomi Islam (STEI) Hamfara dengan metode ceramah dan diskusi interaktif. Materi yang disampaikan meliputi potensi tambang Indonesia, peringkat global Indonesia dalam produksi tambang, serta kondisi aktual pengelolaan sektor tambang. Hasil yang dicapai menunjukkan bahwa peserta memiliki pemahaman yang lebih baik tentang potensi sumber daya tambang dan tantangan pengelolaannya. Diskusi juga memunculkan kesadaran akan perlunya kebijakan yang lebih baik untuk memanfaatkan kekayaan tambang demi kesejahteraan rakyat.
Creating Profile of Kalurahan Kebonharjo, Kapanewon Samigaluh, Kabupaten Kulon Progo, using Community Participation Method Kurniati, Ayu Candra; Septiana Fathurrohmah
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Pengabdian Kepada Masyarakat)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Rural development in Indonesia has currently received special attention from the government. The importance of village data in the rural development planning process means that rural’s governments must strive to provide data related to the specific characteristics of their area. This can be realized in the making of rural profile. Implementation stages include preparing instruments, forming working groups, collecting and validating data assisted by the community (a form of participation activity). Furthermore, data processing will be carried out through clarification, tabulation, compilation and recapitulation either through application programs or manually. The final stage is publication which will be carried out via online media. Kebonharjo sub-district consists of 10 pedukuhan, has an area of ​​746.92 hectares, population of 2,376 people with the main source of income is in agriculture. Geographically, Kalurahan Kebonharjo has most of the landforms tend to be hilly with an average land slope of 38 degrees. The Kebonharjo's potential are from agriculture sector, tourism, the presence of UMKM and culture preservation.
Pengelolaan Sumber Daya Air (PSDA) Di Daerah Kering Gunungkidul Dengan Rain Driphonics System (RDS) Sriyono, Edy; Reja Putra Jaya
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Most of the Gunungkidul district area is dry, barren rain-fed land with an area of ​​42,000 ha and a fairly high average rainfall of 1889.66 mm/year. So far, this rainfall can only be utilized during the rainy season, while during the dry season there is still a shortage of water because the excess rainwater flows directly on the surface and the rest is absorbed into the soil. The purpose of this study is to convert dry land into land for date palm plantations and their intercrops by maximizing the use of rainwater so that it is expected to maximize the socio-economic welfare of the surrounding community. With the Rain Driphonics System (RDS) method, the rainwater that falls is collected in reservoirs to then be channeled into the main reservoir pool, which is then pumped into the main reservoir pool and after adding liquid fertilizer from the water mixing tank, it is then channeled by gravity to the plantation land through the drip irrigation system. The analysis was carried out by calculating the amount of rainwater and then implementing it in the plantation demonstration plot. Based on the results of rainfall calculations, the highest mainstay discharge was obtained in January-II of 56.88 lt/sec, while the average water requirement for 40 main plants/date palms and intercrops was 0.08 lt/sec and by using a storage volume of 102 m3 and water savings, it can meet the needs for 1 year. So it can be concluded that by using RDS, it is proven that rainwater that falls in the rainy season can also be utilized in the dry season or in other words, rainwater that falls in the rainy season can be utilized throughout the year.
EVOLUSI FASADE ADAPTIF RUMAH MODULAR Basuki; Ary Sismiani; Johanes Bonivasius Muda
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Technological developments often affect the way residential buildings adapt to the environment. This is reflected in the appearance of building facades. This article presents a comparison of the development of modular houses in adapting to the environment along with technological developments. The focus of the study is more on the appearance of building facades. The analysis was carried out using a qualitative descriptive approach. The focus of the study is: (1) the development of modular houses before the industrialization era, (2) the development of modular houses before the mass industry era, (3) the development of modular houses in the digital technology era. Data collection was obtained from secondary data in the form of articles, books, seminar papers. Case studies through several case samples (case multiple) to provide examples of practice. The results of the study found that adaptive modular houses have been developed both in traditional architecture, mass industry era architecture, and the digital technology era. Traditional architectural modular houses in adapting to the environment are more static. Digital technology provides opportunities for the development of modular houses and their elements that are more dynamic (flexible), complex and integrated.

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