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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional ELKHA : Jurnal Teknik Elektro Widyariset JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi JISIP: Jurnal Ilmu Sosial dan Pendidikan Jurnal TAMBORA JIIP (Jurnal Ilmiah Ilmu Pendidikan) Widyariset Brilliance: Research of Artificial Intelligence Leuser Journal of Environmental Studies International Journal of Electrical, Computer, and Biomedical Engineering (IJECBE)
Hudaya, Chairul
Department Of Electrical Engineering, Engineering Faculty, Universitas Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Social Sciences Other

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PEMODELAN ENERGI BARU TERBARUKAN (EBT) MELALUI PENDEKATAN DINAMIS UNTUK KETAHANAN ENERGI KABUPATEN SUMBAWA 2017-2027 Aryanto, Nova; Jaya, Ahmad; Hudaya, Chairul
Jurnal TAMBORA Vol. 4 No. 2A (2020): SPECIAL ISSUE INNOVATION MANAGEMENT
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v4i2A.783

Abstract

In an effort to increase the value of the Electrification Ratio value reaches 99.9% andUtilization of New and Renewable Energy (EBT) of up to 25% by 2025 is requiredThe General Plan for National Energy (RUEN) which is revealed to be the General DraftRegional Energy (RUED). Sumbawa as an area in West Nusa Tenggarahas the potential for EBT in the form of Solar Energy Potential, Hydro Energy, and Thermal EnergyEarth and Sea Energy require strategic policies to manage andmeet the energy security of the region. This study aims to predictEnergy needs, and mapping the potential of EBT, in order to obtain a mixenergy (energy mix) is balanced. This research was conducted using toolssoftware Long-range Energy Alternatives Planning System (LEAP) withdynamic systems approach. Data obtained from PT. PLN UP3 Sumbawa, RUPTL DataPLN NTB Region, Bapedda Kab. Sumbawa and Data from BPS Kab. Sumbawa. ResultThis research shows that the potential of EBT can be integrated in RUED formeet the energy needs of the region. Therefore, this research canproduce accurate energy demand forecast for Sumbawa Regencyin particular the use of regional green energy sources (Green Energy) to achieve thisenergy security for the great and dignified Sumbawa Regencyencouraging the formation of RUED Sumbawa Regency in line with the Indicator StrategySDGs program launched by the Government, both the Central Government andLocal Government especially the Clean Energy (Green Energy) program.
RANCANGAN TERMOELEKTRIK GENERATOR (TEG) PORTABEL PADA KNALPOT SEPEDA MOTOR DENGAN MATERIAL ALUMUNIUM SEBAGAI KONDUKTOR Hudaya, Chairul
Jurnal TAMBORA Vol. 5 No. 1 (2021): EDISI 12
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i1.1001

Abstract

Thermoelectric Generator (TEG) is an application of the thermoelectric module forgenerate electricity according to the seebeck effect which takes advantage of the temperature differenceoccurring on both sides of the module. This study aims to design a toolportable power generator by exploiting the energy loss in motorcycle exhaustin order to produce a power of 10. The design that is built is in the form ofelectrical design with series configuration and series-parallel configuration ascomparison, using 8 pieces of thermoelectric modules of type SP1848-27145 and modulesDC / DC converter. The mechanical design consists of 4 layers with visualizationusing Autodesk Inventor software. The shape of the tool is adapted to the shapeexhaust so that it can be removed and reinstalled with dimensions of 164.3 ????????× 205 × 23.135 ???????? and can maintain the temperature difference (????????) of 60 ° ????. ResultThe selected design uses a series configuration because it has the same amount of powerclose to the target of ? 9???? with good reliability and has protection onconverter step-down module.
RANCANG BANGUN SISTEM PEMANFAATAN PANAS BUANG PADA KOMPOR PORTABEL MENGGUNAKAN THERMOELECTRIC GENERATOR Hudaya, Chairul
Jurnal TAMBORA Vol. 5 No. 1 (2021): EDISI 12
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i1.1002

Abstract

The world's population continues to grow, causing energy needs to increase rapidly.In fact, not all regions have a special supply of electrical energyareas that are located in remote and difficult to access places. Besides the depletion of reservesfossil fuels as the main source of electricity generation and effectsbad pollution also encourages the change of energy sources into new energyrenewable (EBT). The purpose of this research is to design a solution forovercome both of these by using the exhaust heat utilization system(waste-heat recovery) in domestic combustion, especially portable stoves.Thermoelectric generator (TEG) is the right choice because it has severaladvantages needed such as simple conversion process, reliabilityhigh, and ease of application. The research will discuss the design of the toolwaste-heat recovery on portable stoves mechanically and electrically. Designcarried out on 2 different types of TEG modules, namely TEP1-1264-3.4 and SP1848-27145. The proposed tool has an estimated output power of about 9.24 W for the moduleTEP1-1264-3.4 and 9.0048 W for SP1848-27145 module using 8a TEG module with an approximate temperature difference of 60 ? and a cooling systemwater based. Thus the TEP1-1264-3.4 module generates more powerhigher than SP1848-27145 module and the series configuration is rated better because of thishave no problem when experiencing voltage differences between modules. Designmechanical build that is made to have 2 separate frame parts for conveniencecircuit maintenance.
ANALISIS PENGARUH HARMONISA PADA TRANSFORMATOR DISTRIBUSI DI HARI KERJA DAN HARI LIBUR PADA GEDUNG PERKANTORAN Hudaya, Chairul
Jurnal TAMBORA Vol. 5 No. 1 (2021): EDISI 12
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i1.1003

Abstract

Harmonics are a phenomenon of voltage waveform deviationand currents that are transmitted and distributed from source to load in the formpure sinusoidal waves. This research aims to learn aboutthe influence of harmonics on distribution transformers in office buildings as wellcompare the effect on weekdays and holidays. From the measurement results inSudirman Central Business District is known that transformers 1 and 3 existharmonics with a current THD percentage of 25.27% and 22.32% on weekdays.While on holidays there is transformer 1 which has a percentage of THD current17.24% which exceeds the IEEE 519-1992 allowable limit of 15%.The dominant harmonics are the 3rd, 5th, and 7th harmonics. With a percentage of THDcurrents that exceed the standard limits will result in performance and even degradationdamage to electrical equipment or components. The results of the study show that at the momentsmall load (holidays) THD the resulting current is not too large due to the loadless use than during large loads (working days).
ANALISIS PENGARUH CYBER PUBLIC RELATIONS TERHADAP KESADARAN MEREK SEBUAH PERGURUAN TINGGI SWASTA MENGGUNAKAN STUCTURE EQUATION MODELLING (SEM) Hidayatullah, Mila; Syukron Anshori, Muhammad; Hudaya , Chairul
Jurnal TAMBORA Vol. 5 No. 1 (2021): EDISI 12
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i1.1004

Abstract

This research is focused on the influence of public relations activities (PublicRelations-PR) through the use of the internet (Cyber ??PR) to brand awarenessa private college. The purpose of this research is to find outhow the influence of cyber PR activities carried out by the University Public RelationsSumbawa Technology (UTS) through social media such as Facebook, Youtube andInstagram towards increasing UTS brand awareness. ResearchThis method uses quantitative methods with SPSS structural equation modeling (SEM)to compile a model of research results. The sample population used inThis research is the community of Sumbawa sub-district with the age criteria 15-29year in which 124 respondents filled out a questionnaire as a representation of 16,770 peoplethe people of Sumbawa for that age category. From the results of the F test there is an influencesimultaneous between independent variables (Facebook, Instagram and Youtube variables)to the dependent variable (Brand Awareness). Meanwhile, the results of the t test are obtainedthat the Instagram variable has a significant influence onincrease in UTS campus brand awareness.
PENERAPAN SISTEM KOMPUTERISASI HAJI TERPADU (SISKOHAT) TERHADAP PENINGKATAN LAYANAN HAJI PADA KANTOR KEMENTERIAN AGAMA KABUPATEN SUMBAWA Suzami, Ardi; Hudaya, Chairul; Rodianto
Jurnal TAMBORA Vol. 5 No. 2 (2021): EDISI 13
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i2.1131

Abstract

This study aims to determine the effect of the implementation of the Integrated Hajj Computerized System (SISKOHAT) on the improvement of Hajj services at the Ministry of Religion Office of Sumbawa Regency. This research is quantitative descriptive. The type of data used, namely primary data, was obtained from the results of distributing questionnaires to prospective pilgrims, the general public, and SISKOHAT officers/managers in Sumbawa Regency. The sample in this study were 101 respondents who were prospective pilgrims, 113 respondents who were the general public, and 11 respondents who were SISKOHAT officers/managers. The data analysis method used is simple linear regression analysis which includes data quality test, classical assumption test, and coefficient of determination test. The results showed that the application of SISKOHAT had a positive and significant effect on Hajj services. In addition, the implementation of SISKOHAT has an effect of 82.1% on increasing hajj services for prospective pilgrims, 57.3% for the general public, and 52.6% for SISKOHAT officers/managers. The remaining 17.9% for prospective pilgrims, 42.7% for the general public, and 47.4% for SISKOHAT officers/managers are influenced by other variables not discussed in this study.
EFEKTIVITAS METODE PEMBELAJARAN ONLINE PADA MASA PANDEMI COVID-19 Ismiyarti, Wilia; Hudaya, Chairul; Rodianto
Jurnal TAMBORA Vol. 5 No. 3 (2021): EDISI 14
Publisher : Wakil Rektor 3, Direktorat Pengabdian kepada Masyarakat dan Publikasi, Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/jt.v5i3.1295

Abstract

The spread of COVID-19 has had an impact on all sectors of life, one of which is the education sector. The teaching and learning process which was originally carried out face to face is now switching to online learning. The purpose of this study was to determine how effective the online learning method was during the COVID-19 pandemic at a private university. There are 3 methods in this research, namely synchronous, asynchronous and mixed learning methods with the nature of the research is quantitative. Data collection techniques were carried out by distributing questionnaires in the form of google form to 100 students and 60 lecturers as respondents. The results of research on student respondents showed that mixed online learning methods were very effective during the covid-19 pandemic with an effectiveness ratio value of 81 and a percentage of 34%. while the synchronous and asynchronous methods are quite effective with the percentages of 32% and 33%, respectively. However, lecturer respondents indicated that the three methods were quite effective with the percentage of synchronous learning 32%, asynchronous and mixed learning 34% each.
Electrochemical Performance of Li4-xTi5CuxO12 for Lithium Ion Capacitor Applications Ahmad Sohib; Achmad Subhan; Wahyu Bambang Widayatno; Slamet Priyono; Chairul Hudaya; Ilma Nuroniah; Sherly Novia Sari; Bambang Prihandoko
Widyariset Vol 6, No 1 (2020): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.6.1.2020.43-50

Abstract

Lithium titanat (LTO) has attracted considerable attention since it has unique characteristics for energy storage application. Doped LTO is one of approach to improve LTO performance. To date, doped LTO performance in full cell lithium ion capacitor has rarely been discussed. This study is aimed to synthesize Cu-doped LTO via solid state reaction and high energy milling and investigate its electrochemical performance in full cell of lithium ion capacitor. Cu-doped LTO is synthesized via solid state method with high energy milling. Diffraction pattern exhibit that Cu-doped LTO has been successfully synthesized even some impurities such as Baddeleyite, ZrO2, and Li2O appear in each sample. Cyclic voltammogram profile of half-cell based Cu-doped LTO shows that the oxidation and reduction peaks are declined due to its impurities contain. electrical resistance of LTO and Cu-doped LTO becomes smaller as increasing dopant contain while charge transfer resistance is higher. Full cell performance of LIC represent that undoped  LTO//Activated carbon shows higher capacitance, namely 430 µFg-1 at specific current of 50 mAg-1than that of 2.5%-Cu-doped LTO//AC holds 15 µFg-1.
Electrochemical Performance of Li4-xTi5CuxO12 for Lithium Ion Capacitor Applications Ahmad Sohib; Achmad Subhan; Wahyu Bambang Widayatno; Slamet Priyono; Chairul Hudaya; Ilma Nuroniah; Sherly Novia Sari; Bambang Prihandoko
Widyariset Vol 6, No 1 (2020): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/widyariset.6.1.2020.43-50

Abstract

Lithium titanat (LTO) has attracted considerable attention since it has unique characteristics for energy storage application. Doped LTO is one of approach to improve LTO performance. To date, doped LTO performance in full cell lithium ion capacitor has rarely been discussed. This study is aimed to synthesize Cu-doped LTO via solid state reaction and high energy milling and investigate its electrochemical performance in full cell of lithium ion capacitor. Cu-doped LTO is synthesized via solid state method with high energy milling. Diffraction pattern exhibit that Cu-doped LTO has been successfully synthesized even some impurities such as Baddeleyite, ZrO2, and Li2O appear in each sample. Cyclic voltammogram profile of half-cell based Cu-doped LTO shows that the oxidation and reduction peaks are declined due to its impurities contain. electrical resistance of LTO and Cu-doped LTO becomes smaller as increasing dopant contain while charge transfer resistance is higher. Full cell performance of LIC represent that undoped  LTO//Activated carbon shows higher capacitance, namely 430 µFg-1 at specific current of 50 mAg-1than that of 2.5%-Cu-doped LTO//AC holds 15 µFg-1.
Perancangan Sistem Berbasiskan Gelombang Laut untuk Tambahan Energi Angin pada PLTB Bayu Rachmat; Chairul Hudaya
Jurnal Pendidikan Tambusai Vol. 6 No. 2 (2022): Agustus 2022
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.835 KB) | DOI: 10.31004/jptam.v6i2.4624

Abstract

Untuk mengurangi ketergantungan yang sangat besar terhadap energi fosil-yang mencapai 95% (Pusdating, KESDM, 2012) perlu pemanfaatan energi yang berasal dari bahan bakar bukan fosil. Pengembangan energi alternatif juga mendukung realisasi tujuan pembangunan berkelanjutan dalam menyediakan energi baru dan terbarukan mengacu kepada PP No. 2 Tahun 2017 tentang Rencana Umum Energi Nasional/RUEN Indonesia memiliki potensi yang besar dalam pengembangan energi gelombang laut sekitar 17.989 MW dengan kapasitas terpasang sebesar 0,3 MW (0.002%) dan energi angin sekitar 60.647 MW (> 4 m/s) dengan kapasitas terpasang 3,1 MW (0,01%). Penggunaan energi terbarukan sebagai sumber listrik menjadi solusi untuk mengurangi penggunaan bahan bakar fosil. Namun energi baru terbarukan ini memiliki kekurangan dikarenakan bergantung pada kondisi alam, maka energi yang diberikan tidak dapat ditebak menyebabkan energi yang dikeluarkan tidak stabil dan memungkinkan tidak ada ketika diperlukan. Makalah ini bertujuan untuk mengetahui kemampuan gelombang laut menjadi solusi lain untuk PLTB dalam menghasilkan energi listrik, dikarenakan energi angin memiliki potensi ketiga terbesar setelah Surya dan Hydro tapi kapasitas terpasang dan pemanfaatanya masih sangat minim
Co-Authors Achmad Subhan Agus Indarto Agus Sugiyono Ahmad Sohib Ahmudi, Ali Akbar, Iwan Bahyudin Aliyah, Jannatun Amien Rahardjo Anisah Muthi’ah Ardiansyah Putra Ardita, I Made Aryanto, Nova Bambang Prihandoko Bayu Rachmat Burhanuddin Burhanuddin Daulay, Andini Dwi Khairunnisa Diah Anggeraini Hasri Fitri, Ismi Rosyiana Hermanto, Koko Hidayatullah, Mila Husnayain, Faiz Husni Ilma Nuroniah Irawati Irawati Ismiyarti, Wilia Iswandi Imran Iwa Garniwa Jaya, Ahmad Jufri, Fauzan Hanif Juliansyah, Ahmad Juniardi Akhir Putra Khusuma, AB Rendra Ma'arif Hasan Mardinata, Erwin Muhammad Fadillah Ghifari Muhammad Syukron Anshori Nuryadi, Halid Rodianto, Rodianto Rudi Masniadi Rudy Setiabudy Samual, Muhammad Gillfran Semedi, Jarot Mulyo Sherly Novia Sari Shinta Esabella Sidqi, M. Ahsin Slamet Priyono Sumarningsih, Eka Yuni Suzami, Ardi Tambun, Laura Agnes Verdianto, Ariono Wahyu Bambang Widayatno Warih, Gamal Fiqih Handono Yuliadi Yuliadi Yumnaristya, Syefiara Hania