Dedy Haryanto
Pusat Rekayasa Perangkat Nuklir dan Pusat Teknologi Reaktor dan Keselamatan Nuklir

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EFEKTIVITAS MODEL LEARNING CYCLE 7E MENINGKATKAN AKTIVITAS BELAJAR DAN KARAKTER JUJUR DALAM PEMBELAJARAN AKUNTANSI Haryanto, Dedy; Herkulana, Herkulana; Purwaningsih, Endang
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 8, No 2 (2019): Februari 2019
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (656.418 KB)

Abstract

AbstractThis research analysed the effectivity of The Application of Learning Model ?Learning Cycle 7E? in Improving Honest Character and Learning Activity in Accounting Learning for Students of Immanuel Vocational High School Pontianak. The research was an experiment research done in 3 cycles. The population of the research was the X Accounting Class. The sample was random sampling technique for 2 classes, control class and experiment class. The technique for data collecting in the research was using test, questionnaire, observation, and documentation. The technique of data analysis used ?uji-t? to test the difference of treatment, for the experiment class was using learning cycle 7E, and control class was using conventional learning model. The data analysis was done with descriptive statistic quantitative data analysis. The research result showed that the application of learning cycle 7E could increase the learning activity and students? honesty in accounting lesson.         Keywords : Learning Cycle 7E, Learning Activity and honest Character
KARAKTERISASI PROTOTIPE HEATER ELEMENT SYSTEM PADA UNTAI UJI RCCS-RDNK MENGGUNAKAN KAMERA INFRA MERAH HARYANTO, DEDY; GIARNO, GIARNO; WITOKO, JOKO PRASETIO; KUSNUGROHO, GREGORIUS BAMBANG HERU; KUSUMASTUTI, RAHAYU; JUARSA, MULYA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 8, No 2 (2020): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektro
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v8i2.313

Abstract

ABSTRAKReactor Cavity Cooling System (RCCS) adalah salah satu sistem keselamatan pada Reaktor Daya Non Komersial (RDNK). Untuk mensimulasikan keadaaan tersebut, dibuat prototype Heater Element System (HES) yang merupakan sistem pemanas listrik dan berfungsi untuk memberikan kalor pada simulator dinding RPV (wall) seperti pada acuan RPV tipe HTGR. Tujuan penelitian adalah untuk memperoleh karakteristik temperatur selama pemanasan prototype HES hingga mencapai temperature 400°C berdasarkan posisi vertikal dan horizontal HES. Metode pengamatan dilakukan dengan menggunakan kamera infra merah NEC tipe TH9100ML sebagai alat ukur temperatur dan alat visualisasi ditribusi temperatur. Hasil pengamatan menunjukkan, bahwa kehilangan kalor pada prototipe HES pada posisi vertikal lebih kecil dibandingankan pada posisi horizontal hal ini disebabkan karena luas permukaan pada posisi horizontal sebesar 7,260 cm2 lebih memungkinkan untuk kehilangan kalor lebih besar. Posisi vertikal temperatur yang dicapai pada wall prototipe HES lebih tinggi dibandingkan pada posisi horizontal.Kata Kunci: RCCS, Heater Element System, kamera infra merah, temperatur ABSTRACTReactor Cavity Cooling System (RCCS) is one of the safety systems in Non-Commercial Power Reactors (RDNK). To simulate this situation, a prototype Heater Element System (HES) was made using electric heating system as a heat sources and it serves to provide radiation heat to the RPV wall simulator as the reference of the RPV of HTGR type. The purpose of this study was to obtain the temperature characteristics during the heating of the HES prototype to reach temperatures of 400°C base on HES position, horizontal and vertical positions. The observation method was carried out using a TH9100ML infrared camera NEC type as a temperature measurement and a temperature distribution base on visualization. The observations show that the heat loss in the HES prototype in the vertical position is smaller than in the horizontal position because this is because the surface area in the horizontal position 7.260 cm2 is more likely to lose more heat. The vertical position the temperature achieved on the HES prototype wall is higher than in the horizontal position.Keywords: RCCS, Heater Element System, infrared camera, temperature