Articles
<![CDATA[ANALISA PEREDAM PANAS GLASSWOOL PADA ALAT PEMBAKAR SAMPAH (INSINERATOR) PORTABEL 2 IN 1 ]]>
<![CDATA[Dinda Estaniya Agustin]]>;
<![CDATA[Wawan]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Teknologika Vol 12 No 1 (2022): Jurnal Teknologika ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Wastukancana ]]>
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DOI: 10.51132/teknologika.v12i1.153
<![CDATA[Abstract. Garbage is an environmental pollutant material that is always there at all times. To reduce environmental pollution, efforts are made to burn waste by using a tool in the form of an incinerator. An important aspect in designing an incinerator is to pay attention to the safety factor for the user when it is operated. The insulator in an incinerator has a very important role. In an effort to reduce the conduction of heat generated during combustion, the incinerator is coated with glass wool as an inner coating that is able to inhibit the heat that comes out when the tool is used. The method used in this study is to compare the temperature measurement of the inner wall of the SS400 Steel plate before being coated with glasswool, the measurement of the temperature of the combustion chamber of the incinerator and the measurement of the temperature of the outer wall of Zinc Galvalume. After the installation of glass wool in the incinerator, measurements were made in the combustion chamber, the results obtained reached ±700-800 oC. The results of this study indicate the use of glasswool can reduce the heat resistance that comes out of the SS400 steel plate wall but increases the temperature in the combustion chamber. The mass of waste and fuel can affect the combustion temperature that occurs. The output of organic waste is in the form of ash which can be used as fertilizer.]]>
<![CDATA[Optimasi Parameter Proses Powder Coating pada Plat Electro Galvanized ]]>
<![CDATA[Sukarman Sukarman]]>;
<![CDATA[Ilmi Ramanda Sitorus]]>;
<![CDATA[Budi Aribowo]]>;
<![CDATA[Dede Ardi Rajab]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) Vol 1 (2019) ]]>
Publisher : <![CDATA[SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) ]]>
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<![CDATA[Makalah ini menyajikan ikhtisar optimasi parameter proses powder coating pada logam electro-galvanized (SECC-AF JIS G 3313). Ketebalan lapisan painting merupakan factor penting yang menentukan dalam proteksi logam terhadap karat. Pada proses powder coating ketebalam merukapan salah satu variable yang sulit dikontrol konsistensinya. Penelitian ini menggunakan material Ral 7016 epoxy polyester dengan ketebalan yang disyaratkan antara 70 -100 micron. Sementara itu, pada proses aplikasi masih ditemukan powder-paint yang lebih tipis dari standar. Penelitian ini bertujuan untuk mendapatkan nilai ketebalan powder coating optimum dari kombinasi parameter proses yang ditetapkan. Eksperimen dilakukan dengan menggunakan array orthogonal L12 Taguchi dengan parameter, program, jarak, metode aplikasi, dan jumlah layer. Metode optimasi ini telah berhasil melakukan perbaikan. Ketebalan rata-rata lapisan paint powder tertinggi mencapai 76,8 micron. Untuk parameter yang diberikan, jarak merupakan parameter yang memberikan dampak tertinggi terhadap ketebalan dengan rasio S/N sebesar 5,114. Hasil ini diharapkan bias digunakan untuk mengembangkan powder coating pada aspek-sapek signifikan lainya.]]>
<![CDATA[ANALISIS PERPINDAHAN PANAS TUNGKU PADA TUNNEL KILN UNTUK PROSES PEMBAKARAN BATA MERAH DI PT XYZ ]]>
<![CDATA[Irwan Suriaman]]>;
<![CDATA[Uus Supriatna]]>;
<![CDATA[M. Rizky Anugrah]]>;
<![CDATA[Rohman]]>;
<![CDATA[Dede Ardi Rajab]]>;
<![CDATA[Yadi Heryadi]]>;
<![CDATA[T.B.U. Adi Subekhi]]>;
<![CDATA[Wawan]]>
<![CDATA[ Jurnal Teknologika Vol 13 No 1 (2023): Jurnal Teknologika ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Wastukancana ]]>
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DOI: 10.51132/teknologika.v13i1.259
<![CDATA[Ceramics are widely used by people in industries for various purposes, for example to make cups and tiles. Currently ceramics are widely used in various industrial raw materials. Ceramics are used as materials for making spark plugs, electrical insulators, and raw materials for printing tools. The ceramics industry is energy intensive in utilizing electrical energy. The amount of energy absorption affects the amount of costs that must be incurred by companies for energy consumption. To reduce costs used by ceramic companies during production, the use of energy is a way to increase the efficiency of the tunnel kiln. Therefore, based on these problems, research was carried out to analyze the data resulting from measurements of the large flow rate of heat transfer by conduction in the thickness of the wall, the amount of heat loss lost by convection on the outside of the wall, and the amount of loss in production costs incurred due to heat loss. This aims to obtain a solution that saves electrical energy used in the production of ceramics. So it was obtained that the highest conduction was in the top firing zone of the core from burning red bricks with heat dissipation reaching 829.73 Watts. Meanwhile, the heat lost at a distance of 50 cm and at a distance of 100 cm is the top firing zone which has the greatest heat loss of up to 0.1 MW compared to the other zones. The preheating zone reaches 5 kW and the cooling zone reaches 16 kW.]]>
<![CDATA[Analisis Pengaruh Beban Dan Kecepatan Terhadap Penampang Gesekan Ban Pada Lintasan Beton ]]>
<![CDATA[Agus Suprayitno]]>;
<![CDATA[Anwar, Choirul]]>;
<![CDATA[TB. Utami Adi Subekhi]]>;
<![CDATA[Yadi Heryadi]]>;
<![CDATA[Sandi Herdiana]]>
<![CDATA[ Jurnal Teknologika Vol 13 No 2 (2023): Jurnal Teknologika ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Wastukancana ]]>
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DOI: 10.51132/teknologika.v13i2.272
<![CDATA[Abstract. Two-wheeled vehicles, namely motorbikes, are still the mainstay as an affordable means of transportation for the majority of Indonesian people. Motorcycles are a means of transportation that are often found, both in urban and rural areas. Motorcycles have many advantages compared to other means of transportation Tires are an important part of land vehicles, tire conditions that are not in accordance with the standards can cause tire bursts which result in traffic accidents. Frictional forces that occur in the tires can cause wear on the tires. Various factors that affect wear include the speed of movement and the amount of load. In this study an analysis was carried out to find out how the effect of load and speed on the resulting frictional cross-sectional area. The analytical method used in this study is Kruskall-Wallis and Mann-Whitney. Penelitian ini menghasilkan kesimpulan bahwa faktor beban memiliki pengaruh yang signifikan terhadap penampang gesekan ban sepeda motor pada lintasan beton. Sedangkan perlakuan atau faktor kecepatan tidak memiliki pengaruh yang signifikan terhadap penampang gesekan ban sepeda motor pada lintasan beton.]]>
<![CDATA[Analisis kekuatan bearing type NU 314, Bearing QJ 314, dan bearing 22316 pada mesin Screw Conveyor ]]>
<![CDATA[Edi Ismanto]]>;
<![CDATA[Jatira]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Teknologika Vol 14 No 1 (2024): Jurnal Teknologika ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Wastukancana ]]>
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DOI: 10.51132/teknologika.v14i1.365
<![CDATA[Dalam proses produksi salah satu kegiatan yang umum adalah material handling yaitu penanganan atau pemindahan bahan baku dari satu proses ke proses yang lainya. Proses pemindahan material atau material handling dibutuhkan pesawat angkat dan angkut. Salah satu pesawat angkut yang digunakan adalah mesin Screw conveyor. Mesin digunakan untuk memindahkan material berupa clay yaitu berupa butiran butiran tanah yang sudah dikondisikan dengan ukuran tertentu yaitu berukuran 5mm sampai 30mm. Bagian pada mesin ini yang sering mengalami kerusakan adalah bagian bearing, hal ini dikarenakan semua beban untuk mendorong material bertumpu langsung dengan bearing. Untuk menentukan kekuatan bearing yang dipakai maka harus dibuat dulu rancangan dasar dari mesin tersebut, yaitu kapasitas mesin, jenis material, gaya yang bekerja pada bagian bearing. Disini telah didapatkan data kapasitas mesin screw conveyor adalah 11.000 kg/jam, kekuatan bearing secara perhitungan yaitu Bearing QJ304: 15.637 jam, Bearing NU304: 38.683 jam, dan Bearing 22316: 50.937 jam. Untuk mendapatkan kondisi aktual bagian bearing yaitu pengukuran vibrasi. Dalam hal vibrasi alat ukur akan menunjukan besarnya velocity. Velocity adalah jumlah waktu yang dibutuhkan ketika terjadinya displacement atau kecepatan getaran suatu benda. Secara garis besar Velocity mewakili kondisi kerusakan bearing yang diaktualisaikan dengan niali 0-11 yaitu merujuk pada Standard ISO 10816-3. Sehingga akan didapatkan hasil perbandingan dari perhitungan perencanaan mesin dan aktualnya.]]>
<![CDATA[Analisis Pemahaman Siswa Sekolah Dasar Tentang Bentuk Dan Perubahan Energi Dalam Kehidupan Sehari-Hari Di SDN 1 Narimbang Mulia ]]>
<![CDATA[Anisa Nurfadila Ramadhani]]>;
<![CDATA[Peni Irawati]]>;
<![CDATA[Siti Fatonah]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Sadewa : Publikasi Ilmu Pendidikan, Pembelajaran dan Ilmu Sosial Vol. 3 No. 3 (2025): Publikasi Ilmu Pendidikan, Pembelajaran dan Ilmu Sosial ]]>
Publisher : <![CDATA[Asosiasi Riset Ilmu Pendidikan Indonesia ]]>
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DOI: 10.61132/sadewa.v3i3.2000
<![CDATA[This research is motivated by the problems faced by fifth-grade students at SDN 1 Narimbang Mulia in understanding the material on forms and changes of energy in everyday life. One of the main obstacles identified is the lack of teaching aids and the unappealing nature of student worksheets, which hampers the learning process. The purpose of this study is to analyze the level of elementary students' understanding of the forms and changes of energy, as well as to identify the obstacles they face in learning the material. This research uses a qualitative approach with data collection techniques including student observations, teacher interviews, and the administration of a post-test at the end of the learning session. The research subjects are fifth-grade students of SDN 1 Narimbang Mulia. The results of the study show that most students have a fairly good understanding of the concepts of energy forms and changes. However, there are still obstacles in the learning process, including limited teaching aids and uninteresting student worksheets. This study is expected to serve as a basis for developing more effective learning strategies to improve students' understanding of the material on energy forms and changes in everyday life.]]>
<![CDATA[Analisis Materi IPA dan Simulasi Pembelajaran IPA di Sekolah Dasar Kelas IV pada Tema “Pengaruh Gaya terhadap Benda” ]]>
<![CDATA[Neneng Nurhayati]]>;
<![CDATA[Oktarina Ramdhani]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial Vol. 3 No. 5 (2025): September : Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial ]]>
Publisher : <![CDATA[Asosiasi Riset Ilmu Pendidikan Indonesia ]]>
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DOI: 10.61132/nakula.v3i5.1900
<![CDATA[Science education in elementary schools plays a crucial role in shaping students’ early understanding of natural phenomena, including the concept of force and its effects on objects. However, many teachers still face challenges in delivering the material in a contextual and engaging way, which affects student participation in learning. This study aims to analyze the relevance of the science content on the theme “the effect of force on objects” and to evaluate the effectiveness of simulation-based learning in improving concept comprehension among fourth-grade students. A descriptive quantitative method was used with a simple experimental approach involving one class. The research instruments included observation, documentation, and posttest assessments. The results showed that 92.6% of students achieved the minimum mastery criteria after participating in the simulation-based learning process. These findings indicate that the use of simulations helps students better understand changes in motion and shape caused by force. The implication of this study highlights the importance of integrating interactive media and experiential learning approaches in science education at the elementary level to enhance student engagement and significantly improve learning outcomes.]]>
<![CDATA[Pengaruh Penggunaan Audio Visual sebagai Media Pembelajaran terhadap Pemahaman Konsep IPA Materi Struktur Lapisan Bumi Siswa Kelas V Sekolah Dasar ]]>
<![CDATA[Hilda Lestari]]>;
<![CDATA[Kayla Wahyuningtyas]]>;
<![CDATA[Lilis Nurul Aini]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial Vol. 3 No. 5 (2025): September : Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial ]]>
Publisher : <![CDATA[Asosiasi Riset Ilmu Pendidikan Indonesia ]]>
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DOI: 10.61132/nakula.v3i5.2031
<![CDATA[Understanding scientific concepts in elementary school, particularly the topic of Earth's layers, remains a challenge due to its abstract nature. Low student interest and difficulty in visualizing geospheric structures highlight the need for more contextual and engaging learning media. This study aims to examine the effect of using audiovisual media on fifth-grade students' understanding of science concepts. A quantitative approach with a quasi-experimental design was employed, involving two groups: an experimental class using audiovisual media and a control class using conventional methods. The analysis revealed a significant difference in concept comprehension between the two groups. Students exposed to audiovisual media demonstrated greater improvement in understanding compared to those taught through traditional methods. These findings suggest that audiovisual media effectively support students in grasping abstract concepts through engaging visual and auditory presentations. The study implies that integrating interactive learning media is essential to enhance the quality of science education in elementary schools.]]>
<![CDATA[Interaktivitas Pembelajaran untuk Meningkatkan Hasil Belajar IPA Kelas IV Sekolah Dasar ]]>
<![CDATA[Harya Sandika]]>;
<![CDATA[Josephirra Josephirra]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial Vol. 3 No. 5 (2025): September : Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial ]]>
Publisher : <![CDATA[Asosiasi Riset Ilmu Pendidikan Indonesia ]]>
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DOI: 10.61132/nakula.v3i5.2032
<![CDATA[This study is motivated by the low learning outcomes of students in science subjects, particularly in the topic of energy transformation in fourth-grade elementary school. The lack of student engagement during conventional teaching methods is considered a major factor contributing to poor conceptual understanding. Therefore, this research aims to examine the effectiveness of interactive learning in improving students’ academic performance on the topic. A quantitative approach with a descriptive method was employed. The participants were fourth-grade students at a public elementary school, with data collected through learning outcome tests and classroom observation. The results showed that the implementation of interactive learning significantly enhanced student participation, clarified the concept of energy transformation, and promoted deeper understanding. Students’ average test scores demonstrated a notable improvement after the interactive learning approach was applied. These findings suggest that actively engaging students in the learning process can serve as an effective strategy to address low academic performance in specific science topics. The implications highlight the importance for teachers to adopt more varied and engaging teaching methods to improve the quality of elementary science education.]]>
<![CDATA[Pemahaman Konsep Rantai Makanan pada Siswa Sekolah Dasar : Studi Observasi di Kelas V SDN 1 Kaduagung Timur ]]>
<![CDATA[Mohammad Sopian]]>;
<![CDATA[Najwa Maulida Khaeriah]]>;
<![CDATA[Rita Anjelita]]>;
<![CDATA[Selma Halimatul Zakiyah]]>;
<![CDATA[Yadi Heryadi]]>
<![CDATA[ Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial Vol. 3 No. 5 (2025): September : Jurnal Nakula : Pusat Ilmu Pendidikan, Bahasa dan Ilmu Sosial ]]>
Publisher : <![CDATA[Asosiasi Riset Ilmu Pendidikan Indonesia ]]>
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DOI: 10.61132/nakula.v3i5.2119
<![CDATA[This observation aims to ensure that elementary school children at SDN 1 Kaduagung Timur in grade V know the material about the concept of the food chain. The method used is a qualitative method. Qualitative methods are research approaches that focus on collecting non-numerical data to understand social, cultural, or psychological phenomena in depth. This method uses techniques such as interviews, observations, and text analysis to gain insight into the meaning and experiences of individuals or groups. The results of the study revealed that most students had a good basic understanding of the concepts of producers, consumers, and decomposers, but there were still errors in ordering the food chain correctly. The conclusion of this observation shows the need for a more contextual and visual learning approach to improve student understanding.]]>
