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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega Teknofisika Indonesian Journal of Physics and Nuclear Applications Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS) Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Mitra Pendidikan: Jurnal Pendidikan dan Pembelajaran Movement and Education Journal of Integrated System
Andang Widiharto
Department Of Nuclear Engineering And Engineering Physics, Faculty Of Engineering, Universitas Gadjah Mada, Jalan Grafika 2, Yogyakarta 55281, Indonesia
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Transportation Other

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STUDY ON DISCHARGE HEAT UTILIZATION OF 250 MWe PCMSR TURBINE SYSTEM FOR DESALINATION USING MODIFIED MED Andang Widiharto; Atinna Paramita Gunawan
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 15, No 1 (2013): Pebruari 2013
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (592.691 KB)

Abstract

PCMSR (Passive Compact Molten Salt Reactor) is one type of Advanced Nuclear Reactors. The PCMSR has benefit charasteristics of very efficient fuel use, high safety charecteristic as well as high thermodinamics efficiency. This is due to its breeding capability, inherently safe characteristic and totally passive safety system. The PCMSR design consists of three module, i.e. reactor module, turbine module and fuel management module. Analysis in performed by parametric calculation of the turbine system to calculate the turbine system efficiency and the hat available for desalination. After that the mass and energi balance of desalination process are calculated to calculate the amount of distillate produced and the amount of feed sea water needed. The turbine module is designed to be operated at maximum temperature cycle of 1373 K (1200 0C) and minimum temperature cycle of 333 K (60 0K). The parametric calculation shows that the optimum turbine pressure ratio is 4.3 that gives the conversion efficiency of 56 % for 4 stages turbine and 4 stages compressor and equiped with recuperator. In this optimum condition, the 250 MWe PCMSR turbine system produces 196 MWth of waste heat with the temperature of cooling fluid in the range from 327 K (54 0C) to 368 K (92 0C). This waste heat can be utilized for desalination. By using MMED desalination system, this waste heat can be used to produce fresh water (distillate) from sea water feed. The amount of the destillate produced is 48663 ton per day by using 15 distillation effects. The performance ratio value is 2.8727 kg/MJ by using 15 distillation effects.Keywords: PCMSR, discharged heat, MMED desalination PCMSR (Passive Compact Molten Salt Reactor) merupakan salah satu tipe dari Reaktor Nuklir Maju. PCMSR memiliki keuntungan berupa penggunaan bahan bakar yang sangat efisisien, sifat keselamatan tinggi dan sekaligus efisiensi termodinamika yang tinggi. Hal ini disebabkan oleh kemampuan pembiakan bahan bakar, sifat keselamatan melekat serta sistem keselamatan yang secara total bersifat pasif. Desain PCMSR terdiri dari tiga modul, yaitu modul reaktor, modul turbin dan modul pengelolaan bahan bakar. Analisis dilakukan dengan melakukan perhitungan parametrik sistem turbin untuk menghitung efisiensi sistem turbin dan kalor yang tersedia bagi desalinasi. Selanjutnya dilakukan perhitungan neraca massa dan neraca energi proses desalinasi untuk menghitung jumlah distilat yang dihasilkan serta umpan air laut yang dibutuhkan. Modul turbin PCMSR dirancang untuk dapat dioperasikan pada suhu siklus maksimum 1373 K (1200 0C) dan suhu siklus minimum 333 K (60 0K). Perhitungan parametrik menunjukkan bahwa perbandingan tekanan turbin yang optimum adalah 4,3 dan memberikan efisiensi maksimum sebesar 56 % dengan menggunakan 4 tingkat turbin serta 4 tingkat kompresor yang dilengkapi dengan rekuperator. Pada kondisi optimum ini, turbin PCMSR dengan daya keluaran 250 MWe menghasilkan kalor sisa sebesar 196 MWth dengan suhu fluida pendingin berkisar dari 327 K (54 0C) hingga 368 K (95 0C). Kalor sisa ini dapat digunakan untuk memproduksi air tawar dengan cara desalinasi air laut. Dengan menggunakan sistem desalinasi MMED, jumlah destilat yang dapat dihasilkan adalah 48663 ton per hari dengan menggunakan 15 efek destilasi. Nilai rasio performansi adalah 2,8722 dengan menggunakan 15 efek destilasi. Kata kunci: PCMSR, kalor sisa, MMED desalinasi
UPAYA KEPALA SEKOLAH DALAM MENINGKATKAN KINERJA GURU DI MASA PANDEMI COVID 19 DI SMK NEGERI 1 KLABANG: SMK NEGERI 1 KLABANG PAIMIN
Mitra Pendidikan Vol. 3 No. 1 (2022): Jurnal Mitra Pendidikan
Publisher : Dewan Pendidikan Bondowoso

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Abstract

The purpose of this action research is to 1) Find out the principal's efforts in improving the ability of teachers to plan learning during the Covid 19 pandemic at SMK Negeri 1 Klabang 2). Knowing the efforts of the principal in improving the ability of teachers to carry out learning during the COVID-19 pandemic at SMK Negeri 1 Klabang 3). Knowing the efforts of school principals in improving the ability of teachers to evaluate learning during the COVID-19 pandemic at SMK Negeri 1 Klabang. The type of research used in this study is a type of qualitative research. This qualitative research is descriptive in the form of speech and writing that can be observed from the subject itself (Arif Furchan, 1992). While the approach in this research is a case study. Case study research is technically a research conducted intensively, in detail, and in depth on a particular symptom or phenomenon in an organization, institution (Suharsimi Arikunto. 2002). The presence of researchers, In qualitative research, the presence of researchers themselves is the main data collection tool (Suharsimi Arikunto, 2002) So that the presence of researchers themselves in the field is needed in achieving optimal research. Therefore, in this study, researchers must directly conduct research in the field This research was carried out at SMK Negeri 1 Klabang Bondowoso which is located at Jalan Blimbing NO. 12, Klabang District, Bondowoso Regency, for 3 months, from September to November 2021. The sources of data in this study are: 1). Primary Data and 2) Secondary Data Data collection techniques Data collection techniques are very important in ensuring the credibility of information in conducting research. In qualitative research, data collection is very important in supporting the success of researchers. The data collection techniques of this research consist of 1). Observation, 2). Interviews, and 3). Documentation Studies. While the data analysis techniques used in this research are 1). Data Reduction, 2). Data Presentation and 3). Withdrawal of Conclusion Conclusions, 1). The principal's efforts to improve teacher performance in making lesson plans are principals using efforts to control and supervise teacher performance so that the control of educational activities in schools is in line with the goals that have been set. 2). The principal's efforts to improve teacher performance in the implementation of learning are by sending teachers to attend training, upgrading, workshops, workshops, and seminars so that the implementation of distance learning can take place optimally according to ongoing conditions. 3). The principal's efforts to improve teacher performance in learning evaluation are by controlling so that all activities in the evaluation are in accordance with the previous series
PERENCANAAN PONDASI TIANG PANCANG PADA GEDUNG UNIVERSITAS TULUNGAGUNG Imam Mustofa; Sigit Winarto; Ahmad Ridwan
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 1 No. 2 (2018): OCTOBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v1i2.379

Abstract

The foundation is an important part of the structure of the building. In particular, multi-storey buildings are now increasingly used, both private homes and public facilities. The foundation is the load bearing element of the column which then channels it to the hard soil layer. Piles are construction parts that are made of wood, concrete, steel or steel, which are used to carry surface loads to lower surface levels in the soil. The purpose of this final project is to be able to calculate / find out the load on the building, the dimensions and depth of the pile foundation, the need for reinforcement and the stability of the control to match the load borne. Pondasi merupakan salah satu bagian penting dalam struktur bangunan. Khususnya bangunan gedung bertingkat yang sekarang ini semakin banyak digunakan, baik rumah pribadi maupun fasilitas umum. Pondasi adalah elemen pemikul beban dari kolom yang kemudian menyalurkannya ke lapisan tanah keras. Tiang pancang adalah bagian – bagian konstruksi yang di buat dari kayu, beton, dana tau baja, yang digunakan untuk meneruskan beban – beban permukaan ke tingkat – tingkat permukaan yang lebih rendah di dalam masa tanah. Tujuan dari tugas akhir ini agar dapat menghitung/ mengetahui pembebanan pada bangunan, dimensi serta kedalaman pondasi tiang pancang, kebutuhan tulangan dan stabilitas kontrol agar sesuai dengan beban yang dipikul.
Neutronic Analysis of LEU-started Molten Chloride Fast Reactor without Fuel Reprocessing Dwijayanto, R. Andika Putra; Harto, Andang Widi
Computational And Experimental Research In Materials And Renewable Energy Vol 4 No 1 (2021): May
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v4i1.24962

Abstract

One of the rarely explored molten salt reactor (MSR) designs is the molten chloride fast reactor (MCFR). This MSR design employs chloride salt instead of fluoride and operated in a fast spectrum. MCFR brings all the advantages of an MSR including breeding whilst being able to burn plutonium and minor actinides efficiently. Since not many countries have access to civilian plutonium, MCFR can also be started using low-enriched uranium (LEU). This study is an initial neutronic analysis of an MCFR using LEU as its startup fuel. Parameters analyzed are conversion ratio (CR) and its neutronic safety, namely effective delayed neutron fraction (βeff), temperature coefficient of reactivity (TCR), and void coefficient of reactivity (VCR). The core is divided into Core Zone and Blanket Zone. The fuel composition of NaCl-UCl3 with a molar fraction ratio of 60:40 and 50:50 is used in Core Zone and Blanket Zone, respectively. The neutronic calculation is performed using MCNP6 code with ENDF/B-VII library. For reference geometry, CR is valued at 0.9298, βeff at 0.00731, TCR at -19.8 pcm/°C, and average VCR at -154.31 pcm/void%. Thereby, the MCFR fulfills inherent safety criteria. Although its value is remarkably high, CR can be further optimized by modifying the separator and reflector material.
Innovative Compact Molten Salt Reactor (ICMSR) Analysis for Mo-99 Production Hardiyanti, Iza Shafera; Suparmi, A; Harto, Andang Widi
Computational And Experimental Research In Materials And Renewable Energy Vol 5 No 2 (2022): November
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v5i2.32069

Abstract

Mo-99 isotope production calculation in the ICMSR (Innovative Compact Molten Salt Reactor) with the computer code MCNP6 has been carried out. ICMSR is a conceptual design of the MSR type reactor that uses NaF-ThF4-UF4 fuel with an enrichment of 235U of 19.75%. This reactor operates in thermal neutron spectrum with a graphite moderator. ICMSR is a power reactor that produces Mo-99 as a by-product. Calculations carried out for 12 days of operation show that the reactor condition is still critical so that there will be no intervention from refueling. The total Mo-99 produced until the 12th day is 9.118 x 106 Ci. Mo-99 can be extracted from the reactor as long as the power reactor is operating so it will be economically advantageous.Keywords: 99Mo, isotope production, ICMSR, MCNP, criticality
Transmutation of Transuranic Elements as Solid Coating in Molten Salt Reactor Fuel Channel Dwijayanto, R. Andika Putra; Miftasani, Fitria; Harto, Andang Widi
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 25, No 3 (2023): October 2023
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/tdm.2023.6880

Abstract

The accumulation of spent nuclear fuel (SNF) is presently considered as a hindrance of the massive deployment of nuclear power plant, especially regarding the transuranic (TRU) elements. Eliminating TRU through transmutation is one of the most feasible alternative as a technical solution to solve the issue. This study explores the possibility of TRU transmutation using molten salt reactor (MSR) in a heterogeneous configuration, where a solid TRU is coated inside the fuel channel filled with liquid salt fuel. Such configuration is proposed to allow higher TRU loading into fluoride salt mixture without compromising the safety of the reactor. TRU coating was applied in consecutively outward radial fuel channel layers with coating thicknesses of 2.5 mm and 5 mm. Calculation was performed using MCNP6.2 radiation transport code and ENDF/B-VII.0 neutron cross section library. From the results, TRU coating with smaller thickness and positioned closer to the centre of the core exhibit higher transmutation efficiency due to exposure to higher neutron flux. Highest transmutation efficiency was achieved at 67.93% after 160 days of burnup. This shows a potential of achieving highly efficient TRU using heterogeneous configuration in MSR core.
Cover Depan VOL 1 NO 2 Novi Soesilo
Journal of Integrated System Vol. 1 No. 2 (2018)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v1i2.1244

Abstract

Cover Depan VOL 1 NO 2
Mitra Bestari Vol 1 No 2 Novi Soesilo
Journal of Integrated System Vol. 1 No. 2 (2018)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v1i2.1246

Abstract

Mitra Bestari Vol 1 No 2
Daftar Isi Vol 1 No 2 Novi Soesilo
Journal of Integrated System Vol. 1 No. 2 (2018)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v1i2.1249

Abstract

Daftar Isi Vol 1 No 2
Cover Belakang Vol 1 No 2 Novi Soesilo
Journal of Integrated System Vol. 1 No. 2 (2018)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v1i2.1250

Abstract

Cover Belakang Vol 1 No 2
Co-Authors A Suparmi, A Adrian Tesalonika Ahmad Ridwan Angga Dwi Saputra Arthanto, Dwi Handoko Atinna Paramita Gunawan Aulia Setyo Wicaksono Awang Noor Indra Wardana Barlian Gumay Limbaran Beny Yudha Kencana Cahyo Ridho Prabudi Dwijayanto, R. Andika Putra Faridah Faridah Galih Setiaji Gede Sutisna Wijaya Gede Sutrisna Wijaya Hafiz Fahrurrozi Hardiyanti, Iza Shafera Hardy F. Logiani, Hardy F. Irpan Saripudin, Irpan Isman Mulyadi Triatmoko Isman Mulyadi Triatmoko Jans P B Siburian Kusnanto Kusnanto Kutut Suryopratomo M, Irfan Fahmuddin M. Ibnu Khaldun M. Rizaal Martinus I Made Adrian Dwiputra Miftasani, Fitria Nina Fauziah Nur Endah Sari Prayoga Isyan Ranti Warfi Rendra Wahyudityo Sigit Winarto Sihana Sihana Sihana Sihana Slamet Parmanto Sungkowo Wahyu Santoso Taufik Taufik Wijono Wijono Yohannes Sardjono Yohannes Sardjono Yohannes Sardjono Yohannes Sardjono Yohannes Sardjono Yohannes Sardjono