Journal of Energy, Material, and Instrumentation Technology最新文献_第6页

Kajian Simulasi Dinamika Molekul Adsorpsi Hidrogen pada Carbone Nanotube dengan Variasi Chirality dan Temperatur Menggunakan Kode LAMMPS

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2021-05-31 DOI: 10.23960/jemit.v2i2.58

Erika Marinda Mufida, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Amir Supriyanto

{"title":"Kajian Simulasi Dinamika Molekul Adsorpsi Hidrogen pada Carbone Nanotube dengan Variasi Chirality dan Temperatur Menggunakan Kode LAMMPS","authors":"Erika Marinda Mufida, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Amir Supriyanto","doi":"10.23960/jemit.v2i2.58","DOIUrl":"https://doi.org/10.23960/jemit.v2i2.58","url":null,"abstract":"Hydrogen adsorption has been simulated on carbon nanotubes for optimum hydrogen absorption. Parameters that affect the amount of hydrogen absorbed have been studied, such as the effect of chirality and temperature on hydrogen absorption in CNTs. The simulation method of hydrogen adsorption on carbone nanotubes uses molecular dynamics simulation code LAMMPS, applies Lennard-Jones interatomic potential and hydrogen atom movement using Van Der Waals force with Microcanonical Ensemble. Data analysis is the output of LAMPS in the form of data in XYZ format. The data contains information in the form of integration steps, number of atoms, temperature, pressure, potential energy, kinetic energy, volume, van der Waals energy, total simulation time and hydrogen absorption. The simulation results show that the optimum absorption occurs at run 10000 and a temperature of 100 K, for armchair chirality of 10 atoms, chirality of 12 atoms and zigzag chrality of 5 atoms. Formation of hydrogen coordinates with Avogadro software, formation of CNT coordinates with VMD software and visualization of hydrogen adsorption on CNTs using VMD software.","PeriodicalId":15738,"journal":{"name":"Journal of Energy, Material, and Instrumentation Technology","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79323458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pengaruh Variasi Polivinilpirolidon (PVP) Terhadap Pembentukan Serat Nano TiO2 Menggunakan Metode Electrospinning 多肽异位对利用电旋法形成纳米纤维的影响

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2021-01-31 DOI: 10.23960/jemit.v2i1.49

Vega Rahmawati Ar, Posman Manurung, J. Junaidi, Pulung Karo Karo

引用次数: 0

Ekstrak Daun Pandan Sebagai Inhibitor Korosi Baja St37 Dalam Larutan NaCl 3% dengan Suhu Perendaman 27°C dan 40°C

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2021-01-31 DOI: 10.23960/jemit.v2i1.130

Siti Fatkhul Ulum, Ediman Ginting, S. Sembiring

引用次数: 0

Pengaruh Variasi Kadar CaCO3 terhadap Pertumbuhan Fase Superkonduktor BPSCCO–2212 Menggunakan Metode Pencampuran Basah CaCO3变化对BPSCCO - 2212超导相位的影响，采用了一种湿润的混合方法

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2021-01-31 DOI: 10.23960/jemit.v2i1.37

Rianggi Wahyuni Pratiwi, Suprihatin, Simon Sembiring, Roniyus Marjunus

{"title":"Pengaruh Variasi Kadar CaCO3 terhadap Pertumbuhan Fase Superkonduktor BPSCCO–2212 Menggunakan Metode Pencampuran Basah","authors":"Rianggi Wahyuni Pratiwi, Suprihatin, Simon Sembiring, Roniyus Marjunus","doi":"10.23960/jemit.v2i1.37","DOIUrl":"https://doi.org/10.23960/jemit.v2i1.37","url":null,"abstract":"This research was conducted to determine the effect of CaCO3 levels on the formation of superconducting phase BPSCCO - 2212 by calculating the level of purity of the phases formed and looking at the microstructure. The variation of CaCO3 was 0.95, 1.00, 1.05 and 1.10 mole using the wet mixing method. The samples were calcined at 800 ° C for 10 hours, and sintered at 820 ° C for 20 hours. Synthesized samples were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The XRD’s chacterization results show that the level of purity of the formed phases increases with increasing Ca levels with maximum point at BPSCCO-2212/1.10 mole. The highest volume fraction was 79,06% in the BPSCCO-2212/1.10 sample. While the lowest volume fraction was 72.10% in the BPSCCO-2212/0.95 sample. Meanwhile, the highest degree of orientation was 20.59% at BPSCCO-2212/0.95. The lowest degree of orientation was 8.46% at BPSCCO-2212/1.10. SEM’s chacterization results show of all samples have been oriented altought not perfect yet and have relatively little space between slabs (voids).","PeriodicalId":15738,"journal":{"name":"Journal of Energy, Material, and Instrumentation Technology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90020491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Penggunaan Metode Taguchi untuk Menentukan Kondisi Parameter Optimum Pada Pembuatan CaO dari Batu Kapur (CaCO-3) 使用田口方法确定石灰石曹(caco3)生产的最佳参数的状态

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2021-01-31 DOI: 10.23960/jemit.v2i1.46

Lilik Widia, Roniyus Marjunus, S. Sudibyo

{"title":"Penggunaan Metode Taguchi untuk Menentukan Kondisi Parameter Optimum Pada Pembuatan CaO dari Batu Kapur (CaCO-3)","authors":"Lilik Widia, Roniyus Marjunus, S. Sudibyo","doi":"10.23960/jemit.v2i1.46","DOIUrl":"https://doi.org/10.23960/jemit.v2i1.46","url":null,"abstract":"Research has been carried out to determine the optimum conditions for making quicklime (CaO) using the Taguchi Method. CaO is the burning result of limestone (CaCO_3) in calcination process by releasing of CO_2 gas until CaO solids occur. The limestone was calcined at 950^o c. The Taguchi Method is a quality improvement technique with the selection of the most influential parameters of the making of process CaO. The parameters are particle size, CaO mass, heating temperature and stirring time. The XRF results show that the levels of CaO after the Taguchi Method design has increased from 98.779% to 98.814%. The XRD results show that the CaO phase is amorphous. The phase which were formed by calcination are Lime (CaO), Quartz (SiO_2) and Hematite (〖Fe〗_2 O_3). Based on the SEM results, the morphology of CaCO_3 has an irregular particle size and tends to be a granular solid due to the presence of impurity. Meanwhile, the results of the EDS analysis show that the content of Calcium (Ca) is quite high. From the design results of the Taguchi Method, the optimum conditions is obtained at a particle size of 140 mesh, 75 gr CaO mass, heating temperature 70^o c and stirring time 0,5 hour.","PeriodicalId":15738,"journal":{"name":"Journal of Energy, Material, and Instrumentation Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86986147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rancang Bangun Purwarupa Pemilah Nanas Berdasarkan Tingkat Kematangan Menggunakan Mikrokontroler Blue Pill STM32F103C8T6

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2020-11-30 DOI: 10.23960/JEMIT.V1I3.27

Friska Tiara Desy, Arif Surtono, Amir Supriyanto, J. Junaidi

引用次数: 3

Efektivitas Ekstrak Daun Jambu Biji (Psidium Guajava l.) Sebagai Inhibitor Pada Baja Karbon St37 dalam Medium Korosif NaCl 3% 番石榴叶提取物的效力。作为碳钢St37的抑制剂在腐蚀性3%的介质中

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2020-11-30 DOI: 10.23960/jemit.v1i3.128

Dian Mardiana, Ediman Ginting, Agus Riyanto

引用次数: 0

Analisis Potensi Energi Listrik Pikohidro dari Sumber Air Pegunungan Serta Upaya Peningkatan Daya Listrik dengan Memanfaatkan Rangkaian Joule Thief 分析山水区Pikohidro电能的潜力，并通过利用Joule Thief系列来增加电力

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2020-11-30 DOI: 10.23960/JEMIT.V1I3.32

A. Soleh, Amir Supriyanto, Arif Surtono

引用次数: 0

Analisis Suhu Dan Konsentrasi Karbondioksida dalam Kotak Pendingin Terhadap Susut Bobot dan Umur Simpan Buah Nanas (Ananas Comosus L. Merr) Berbasis MIT App Inventor 2 基于麻省理工学院应用程序开发者2的冷箱中二氧化碳的温度和浓度的分析

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2020-11-30 DOI: 10.23960/JEMIT.V1I3.31

Yulinda Nugraeni, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Amir Supriyanto

{"title":"Analisis Suhu Dan Konsentrasi Karbondioksida dalam Kotak Pendingin Terhadap Susut Bobot dan Umur Simpan Buah Nanas (Ananas Comosus L. Merr) Berbasis MIT App Inventor 2","authors":"Yulinda Nugraeni, Sri Wahyu Suciyati, Gurum Ahmad Pauzi, Amir Supriyanto","doi":"10.23960/JEMIT.V1I3.31","DOIUrl":"https://doi.org/10.23960/JEMIT.V1I3.31","url":null,"abstract":"Shrinkage of weight loss and shelf life of pineapples is influenced by high temperatures and CO2 concentrations. This study aims to analyze the influence of temperature and CO2 concentration on weight loss and shelf life pineapple in a fridge cooler. The analysis data is obtained from a monitoring tool that has even the ESP8266 module to connect the Arduino with wifi through an application made with MIT App Inventor 2 so that data can be displayed with android. The downside of this application is that if the cellular data network is weak or non-existent, data recording will stop. The results showed that the monitoring tool was able to send data successfully. During data collection, the temperature was 7.82oC - 11.05oC, the CO2 concentration was 457.20 ppm - 490.77 ppm, the weight loss on ripe pineapple was 1.84%, 2.63%, and the weight loss on raw fruit 1.36% - 3.52%. Then from these data the CO2 concentration affects the respiration process, respiration affects the decay process. Whereas temperature affects the physical changes of pineapple fruit so that the shelf life of pineapples can last up to 22 days.","PeriodicalId":15738,"journal":{"name":"Journal of Energy, Material, and Instrumentation Technology","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87090545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring Data Perubahan Suhu, CO dan CO2 Secara Real Time Menggunakan MySQL 监测数据Perubahan, CO dan CO2 Secara实时Menggunakan MySQL

Journal of Energy, Material, and Instrumentation Technology Pub Date : 2020-08-31 DOI: 10.23960/JEMIT.V1I2.25

Randi Setiawan, W. Warsito, J. Junaidi, Sri Wahyu Suciyati

{"title":"Monitoring Data Perubahan Suhu, CO dan CO2 Secara Real Time Menggunakan MySQL","authors":"Randi Setiawan, W. Warsito, J. Junaidi, Sri Wahyu Suciyati","doi":"10.23960/JEMIT.V1I2.25","DOIUrl":"https://doi.org/10.23960/JEMIT.V1I2.25","url":null,"abstract":"This research is related to making a system to display data on temperature changes, CO, and CO2 monitoring results in real time make use of MySQL. The measuring instrument used consisted of an MQ-7 sensor to detect CO gas, a MQ-135 sensor to detect CO2 gas, a DHT-22 sensor to measure the temperature and a microcontroller as a control system. Measurement data is displayed on the PC server using an interface created through the Visual Basic 2010 program and saved to the Mysql database. In this research, a baudrate of 19200 bps was used so that data transmission could be faster so that it supported realtime data transmission. Based on the research, it was found that the greater the boudrate value used, the faster time it takes to send data. In this study, a baudrate of 19200 bps was used so that data transmission could be faster so that it supported realtime data transmission. Based on the research, it was found that the greater the boltrate value used, the faster time it takes to send data. Based on the results of tests conducted, MySQL monitoring system is running well. The MySQL can display data on temperature changes, CO, and CO2 measurement data in the form of tables in real time.","PeriodicalId":15738,"journal":{"name":"Journal of Energy, Material, and Instrumentation Technology","volume":"198 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74212045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1