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Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Published by Institut Teknologi Nasional Yogyakarta
ISSN : 19075995     EISSN : -     DOI : -
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Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 905 Documents
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Blending Plan Batubara Sulfur Tinggi dengan Kandungan Sulfur Rendah Sudrajat, Asep; Erwin Wijaya, Andy
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Blending coal is one of the methods to optimize the characteristics of coal by mixing coal of various qualities. This research aims to reduce the sulfur content in high-calorie coal with high sulfur content, using low-calorie coal with lower sulfur content. With this method, it is expected to produce a coal mixture with lower sulfur content, without significantly sacrificing calorific value, and to increase the market acceptance of coal with more environmentally friendly sulfur content.
Implementasi Program Sedekah Sampah Sebagai Model Pengelolaan Sampah di Sekolah Insren Loisa Marsyom; Angel Ribka Chalista; Virrela Desvinta Ayu Nur Azizah; Gischa Natasya; Rizky Eka Putri; Ani Apriani
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Pengabdian Kepada Masyarakat)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Waste management issues in schools are often overlooked, even though they can negatively impact the environment and health. The Sedekah Sampah program at SD IT Salsabila Baiturrahman aims to address waste problems while providing economic benefits for the school. The methods used include education, actions involving collection, sorting, and selling, and finally, evaluation. The evaluation was conducted by distributing questionnaires to parents and teachers before and after the implementation of the Sedekah Sampah program. The results show a significant increase in the knowledge, attitudes, and behavior of school members regarding waste management, as indicated by the significance value in the statistical test using a paired sample test of 0.000 (less than 0.05). This increase aligns with previous studies emphasizing the importance of education and active participation in waste management. The program also successfully raised funds from waste management, which were used to support school activities. The significance of these results lies in the success of turning waste into a valuable economic resource and raising environmental awareness among students, teachers, and parents.
Penyusunan Profil Dusun sebagai Upaya Updating Data untuk Pembangunan Desa Yusliana, Yusliana
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Pengabdian Kepada Masyarakat)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The Minister of Home Affairs Regulation No. 12 of 2007 concerning Guidelines for the Preparation and Utilization of Village and Sub-district Profile Data regulates the mechanism and instruments for compiling village profiles, which is a crucial step in mapping village potentials and problems. We can use village profile data to identify village opportunities and problems. We will then use this information as a basis for creating development programs. This community service activity aims to assist Kowen II Hamlet, Timbulharjo Village, Sewon District, Bantul Regency, in compiling a profile book as part of an effort to map the development of hamlet data and information. This process has resulted in the Kowen II Hamlet Profile Book, which can complement the village profile and provide the latest data for the government and the community.
Analisis Geosite Dan Geomorphosite Sebagai Potensi Geowisata Di Daerah Krembangan, Kecamatan. Panjatan, Kabupaten Kulon Progo, Daerah Istimewa Yogyakarta Ani, Ani Apriani; Aisyah
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

One form of tourism that is becoming increasingly popular in relation to earth sciences is geotourism. Geotourism is a type of sustainable tourism that focuses on the conservation of natural resources. This geoheritage can further develop into a geopark. In addition to exploration, exploitation, and mitigation, earth science also plays a role in revealing geological heritage or earth heritage around us. This research was conducted in Krembangan, an area located in the Panjatan District, Kulon Progo Regency, Special Region of Yogyakarta. This area was chosen due to its rich geological and geomorphological features that are interesting to study. The landscape in Krembangan exhibits a variety of morphological features, including hills, valleys, and rivers. This reflects the processes and events occurring on the earth's surface. The method used in this study is the parameter assessment analysis by Kubalikova (2013), which serves as a modern method for analyzing geotourism potential. The research results indicate that the Krembangan area has geotourism potential in the form of the Goa Kebon waterfall. Based on the feasibility test using qualitative methods, concerning the weight of scientific significance, educational value, economic value, and conservation value, an average total score of 54.5% was obtained, indicating that the Goa Kebon waterfall geotourism can be considered feasible for development as a geotourism site.
Pemanfaatan Minyak Jelantah sebagai Bahan Bakar Alternatif Ramah Lingkungan pada Kompor Rumah Tangga Suwarno, Djoko; Wiwien Widyastuti; Bernadeta Wuri Harini; Haris Sriwindono; Lukas Purwoto
Retii 2024: Prosiding Seminar Nasional ReTII ke-19 (Edisi Pengabdian Kepada Masyarakat)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Used cooking oil, which is often thrown away after use, can have a negative impact on the environment if not managed properly. Through a community service program implemented in Sidomoyo Village, Godean, Sleman, efforts were made to convert used cooking oil into biodiesel as an environmentally friendly alternative fuel for household stoves. This program aims to empower the community by providing knowledge and skills in processing used cooking oil, so that this waste can be reused productively and reduce environmental pollution. The process of converting used cooking oil into biodiesel involves a simple method that can be implemented by village communities at an affordable cost. The use of biodiesel in household stoves is expected to be an alternative energy solution that is economical and environmentally friendly, as well as supporting efforts to reduce domestic waste. The results of this activity show the enthusiasm of the community in adopting this technology, as well as increasing awareness of the importance of managing used cooking oil waste. It is hoped that this program can become a model of curiosity that is implemented in other villages.
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.

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