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All Journal Jurnal Pendidikan Vokasi KUMARA CENDEKIA JIPTEK : Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Jurnal INTECH Teknik Industri Universitas Serang Raya Social, Humanities, and Educational Studies (SHEs): Conference Series Indonesian Journal of Energy Jurnal Pedagogi dan Pembelajaran DEDIKASI: Community Service Reports Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Asian Journal of Multidisciplinary Research Nozel : Jurnal Pendididikan Teknik Mesin Indonesian Journal of Learning and Instructional Innovation
Pambudi, Nugroho Agung
Program Studi Pendidikan Teknik Mesin FKIP Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Analisis Energi dan Eksergi Pembangkit Listrik Tenaga Panas Bumi Dieng dengan Penambahan Sistem Double-Flash Menggunakan Metode Termodinamika Pramundana, Arya Pramudya; Pambudi, Nugroho Agung
Nozel : Jurnal Pendididikan Teknik Mesin Vol 7, No 4 (2025)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v7i4.115575

Abstract

Indonesia possesses significant geothermal energy potential, accounting for approximately 40% of the world's total reserves. However, its utilization in power generation is still constrained by system efficiency limitations. This study aims to assess the thermal performance of the Dieng Unit 1 Geothermal Power Plant (GPP), which currently operates with a 55 MW single-flash system, and evaluate performance improvements through the integration of a double-flash configuration. A numerical simulation was conducted using the Engineering Equation Solver (EES) software, based on actual operational data from January to February 2025. The results indicate that the implementation of the double-flash system enhances energy efficiency from 71.87% to 84.1%, and exergy efficiency from 43.17% to 49.11%. Net power output increased by 7,560 kW by re-utilizing brine from the high-pressure separator. The study further investigates the effects of pressure variation in the Low Pressure Separator (LPS) and turbine efficiency on power output, identifying 1.6 bar as the optimal pressure for maximizing exergy input. These findings confirm that the double-flash system effectively reduces energy losses and significantly improves the plant’s thermodynamic performance. This research provides valuable insights for optimizing geothermal power systems, offering strategic solutions for sustainable energy development in high-potential regions like Indonesia.
Analisis Persepsi Mahasiswa Terhadap Ketidakjujuran Akademik : Studi Kasus di Fakultas Teknik UNS Wicaksono, Andrye Sukma; Widiastuti, Indah; Pambudi, Nugroho Agung
Nozel : Jurnal Pendididikan Teknik Mesin Vol 5, No 4 (2023)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v5i4.78161

Abstract

Academic dishonesty is a deliberate violation of academic rules for personal gain. Academic dishonesty can reduce the reputation of students and universities, as well as dishonest behavior in the world of work, so research is needed regarding engineering students' perceptions of academic dishonesty. This study aims to determine perceptions, experiences, reasons why engineering students commit academic dishonesty, and to determine the influence between perceptions and experiences of witnessing acts of academic dishonesty. The population used in this study were S1 students from the UNS Faculty of Engineering and the samples taken were 97 respondents. The results of the study show that engineering students' perceptions of academic dishonesty are that students know that academic dishonesty is important, can have an impact on damaging moral character, including actions that violate social and religious norms, so that it becomes the student's responsibility, and must be responsible for caring for the integrity of other students. . The experience of engineering students with academic dishonesty is that students have committed dishonesty but support existing policies, often use unauthorized material during exams, work on papers or articles without including references, and ask for help from seniors who have taken exams but rarely submit assignments properly. pay someone else to complete it and rarely miss out on group assignments. Academic dishonesty policies already exist but sanctions and supervision need to be tightened to reduce academic dishonesty. The reason engineering students commit academic dishonesty is because they don't get sanctioned or punished, the attitude of the lecturer, many friends who do this, will make grades better, difficulty working on questions, easy internet access and fear of failure and lack of study time. Most of the respondents committed academic dishonesty due to internal factors. There is a positive and significant influence between perception and experience of witnessing techniques on the experience of committing academic dishonesty. So that when the perception and experience of witnessing gets higher, they will not commit academic dishonesty.
ANALISIS PENGALAMAN BELAJAR MAHASISWA PENDIDIKAN TEKNIK MESIN DALAM MAGANG INDUSTRI DITINJAU DARI ASPEK KNOWLEDGE, SKILL DAN ATTITUDE Kasanah, Puput Nur; Rohman, Ngatou; Pambudi, Nugroho Agung
Nozel : Jurnal Pendididikan Teknik Mesin Vol 5, No 3 (2023)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v5i3.77275

Abstract

Penelitian ini memiliki tujuan untuk (1) mengetahui tingkat pengalaman belajar mahasiswa setelah melaksanakan program magang industri ditinjau dari aspek knowledge, (2) mengetahui tingkat pengalaman belajar mahasiswa setelah melaksanakan program magang industri ditinjau dari aspek skill, (3) mengetahui tingkat pengalaman belajar mahasiswa setelah melaksanakan program magang industri ditinjau dari aspek attitude. Metode penelitian yang digunakan yaitu deskriptif kuantitatif. Teknik pengambilan sampel yang digunakan nonprobability sampling yaitu total sampling dengan jumlah partisipan sebanyak 71 mahasiswa Pendidikan Teknik Mesin FKIP UNS. Pengumpulan data dilakukan dengan kuesioner / angket. Teknik uji validitas dilakukan dengan membandingkan nilai r hitung dengan nilai r tabel. Analisis data dengan menggunakan analisis deskriptif. Hasil penelitian ini adalah sebagai berikut. Pertama, tingkat pengalaman belajar mahasiswa aspek knowledge (pengetahuan) setelah melaksanakan magang industri memiliki nilai rata-rata 30,2535 dengan frekuensi sebanyak 45 mahasiswa dan persentase 63,4% berada dalam kategori tinggi. Kedua, tingkat pengalaman belajar mahasiswa aspek skill (keterampilan) setelah melaksanakan magang industri memiliki nilai rata-rata 35,1268 dengan frekuensi sebanyak 35 mahasiswa dan persentase 49,3% berada dalam kategori tinggi. Ketiga, tingkat pengalaman belajar mahasiswa aspek attitude (sikap) setelah melaksanakan magang industri memiliki nilai rata-rata 40,5915 dengan frekuensi sebanyak 43 mahasiswa dan persentase 60,6% berada dalam kategori tinggi. Penelitian ini diharapkan dapat bermanfaat bagi program studi dalam evaluasi program magang industri.Kata kunci : Magang industri, pengalaman belajar, knowledge, skill, attitude
Co-Authors Agus Efendi Agustin, Hanifah Hani Ahnaf, Yustisia Aris Budianto, Aris Atho'illah, Muhammad Robith Budihardjo, Billy Cahyono, Budi Tri Danar Susilo Wijayanto Hidayati, Khusnul Husin Bugis Ida Nugroho Saputro Indah Widiastuti Iswanto, Andrian Kartika Chrysti Suryandari Kasanah, Puput Nur Miftanisa, Fahna Sabilla Ngatou Rohman Pramundana, Arya Pramudya Pristiandaru, Danur Lambang Putra, Maedanu Fasola Putri, Alisya Eka Rafela, Nindy Elsa Sakti, Amario Prananda Saputra, Arief Reza Indra Saputro, Andi Dwi Saputro setiyawan, Heru Suharno Suharno Suharno Suparyati, Atik Upik Elok Endang Rasmani Vitariyanti, Diyan Wicaksono, Andrye Sukma Wicaksono, Muchlis Taufiq Anjar Yuyun Estriyanto