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Hasil Pencarian

Ditemukan 3 dokumen yang sesuai dengan query
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Muhammad Levy Aninditio
Abstrak :
ABSTRACT The energy crisis in the future will be a threat for human life. Many advancement of technology currently focus on creating something that perform better than its predecessor but consuming less power. LED lighting technology has been introduced as a breakthrough of technology which possesses big advantages over the other lighting technology. LED lighting technology is able to produce a high luminous flux with very low power consumption, and also lasts longer than others. By consuming lower power, hence the amount of energy being consumed in order to generate the same amount of light will be reduced, and hence, energy saving will happen. This undergraduate thesis discusses replacement analysis of lighting at classrooms at Engineering Center of Faculty of Engineering Universitas Indonesia. The analysis is in terms of illuminance aspect, power quality performance and cost, and it is done by replacing the existing CFL with three different options of LED lamp exist in the market with competitive price. The study suggests that using LED lamp as a replacement for CFL at classrooms at Engineering Center of Faculty of Engineering Universitas Indonesia is more efficient; consuming less energy by 42.86 , and moreover saving the electricity cost as well, from IDR 864,360 annually to IDR 493,920. A comparative analysis between the three different LED lamp options is also performed.
The energy crisis in the future will be a threat for human life. Many advancement of technology currently focus on creating something that perform better than its predecessor but consuming less power. LED lighting technology has been introduced as a breakthrough of technology which possesses big advantages over the other lighting technology. LED lighting technology is able to produce a high luminous flux with very low power consumption, and also lasts longer than others. By consuming lower power, hence the amount of energy being consumed in order to generate the same amount of light will be reduced, and hence, energy saving will happen. This undergraduate thesis discusses replacement analysis of lighting at classrooms at Engineering Center of Faculty of Engineering Universitas Indonesia. The analysis is in terms of illuminance aspect, power quality performance and cost, and it is done by replacing the existing CFL with three different options of LED lamp exist in the market with competitive price. The study suggests that using LED lamp as a replacement for CFL at classrooms at Engineering Center of Faculty of Engineering Universitas Indonesia is more efficient consuming less energy by 42.86 , and moreover saving the electricity cost as well, from IDR 864,360 annually to IDR 493,920. A comparative analysis between the three different LED lamp options is also performed.
Depok: Fakultas Teknik Universitas Indonesia, 2016
S66112
UI - Skripsi Membership  Universitas Indonesia Library
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Septyono Utomo
Abstrak :
Perkembangan teknologi dan pertumbuhan penduduk membuat konsumsi energi terus meningkat sehingga diperlukan penghematan. Salah satu cara melakukan penghematan tersebut adalah dengan penghematan konsumsi energi untuk penerangan. Seiring dengan kemajuan teknologi pun muncul Lampu LED (Light Emitting Diode). LED merupakan lampu dengan konsumsi daya yang rendah bila dibandingkan dengan lampu penerangan lainnya seperti misalnya lampu hemat energi. Lampu LED membutuhkan catu tegangan arus searah. Karena itu lampu LED membutuhkan rangkaian untuk mengubah catu tegangan arus bolak-balik menjadi catu tegangan arus searah. Selain itu lampu LED harus memiliki distribusi cahaya yang baik agar dapat digunakan untuk penerangan. Karena itu dilakukan pengujian untuk melihat perbandingan panas serta pengujian untuk melihat bagaimana distribusi cahaya lampu LED bila dibandingkan dengan lampu hemat energi. Dan dari hasil yang didapat Lampu LED memiliki panas yang lebih rendah dibandingkan dengan lampu hemat energi. Sementara lampu hemat energi memiliki distribusi cahaya yang lebih baik dibandingkan lampu LED. ......The development of technology and population growth make electrical energy consumption increased so that the savings needed to be made. One way to savings on energy consumption is savings energy consumption for illumination. Along with advances in technology arises LED lamps (Light Emitting Diode). LED (Light Emitting Diode) Lamps is a lamp with low power consumption when compared with other lamps, like energy-saving lamp (LHE). LED lamps require direct current voltage supply. Therefore, the LED lights require electrical circuit to convert the alternating current voltage supply into direct current voltage supply. Futhermore LED lamps should have good light distribution to be used for illumination. Because of that testing of lamps was to compare the heat distribution and light distribution between LED lamps and energy-saving lamps. And from the result LED lamps have lower heat than enery saving lamps. While energy-saving lamps have better light distribution than LED lamps.
Depok: Fakultas Teknik Universitas Indonesia, 2014
S56945
UI - Skripsi Membership  Universitas Indonesia Library
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Anthony Ryan
Abstrak :
ABSTRAK Lampu LED berbasis air garam merupakan alternatif sumber energi listrik untuk penerangan yang ramah lingkungan. Aluminium mempunyai potensi sebagai pengganti elektroda yang lebih murah dan tetap memiliki performa yang baik sebagai elektroda. Batang elektroda aluminium yang dirangkai dengan seri dapat menghasilkan listrik menggunakan elektrolit larutan garam. Pengujian dengan elektrolit air garam dilakukan dengan menggunakan pelarut 380 ml air. Pada jumlah garam 18 gr dihasilkan tegangan 4,12 Volt dan arus listrik 0,19 Ampere, sementara pada garam 28 gr dihasilkan tegangan 4,49 Volt dan arus listrik 0,21 Ampere. Pada pengujian waktu operasi, pada elektrolit air garam dengan garam 18 gr menghasilkan waktu maksimum operasi ± 88 jam pemakaian. Kemudian, kedua macam pengujian dilakukan kembali menggunakan elektrolit air laut guna mengetahui kelayakan kedua jenis karakteristik elektroda aluminium pada air laut. Pengujian tersebut menghasilkan tegangan maksimum 3,98 Volt dan arus listrik maksimum 0,22 Ampere dan menghasilkan waktu maksimum operasi ± 80 jam. Dibandingkan dengan penelitian sebelumnya menggunakan elektroda magnesium, disimpulkan bahwa elektroda aluminium dapat dirangkai sedemikian rupa untuk mendapatkan hasil karakter kelistrikan yang mendekati magnesium, namun secara keseluruhan elektroda aluminium perlu diuji campuran logam (alloy) untuk mendapatkan hasil yang lebih baik.
ABSTRACT Salt-water based LED light is an alernative source of electrical energy for environmentally-friendly lighting. Aluminum has the potential as a substitute for cheaper electrodes and still has good performance as an electrode. Alumunium electrode rods that has been arranged in series electrical circruits can produce electricity using the electrolyte saline solution. The study that is done with brine electrolyte was carried out using 380 ml of water solvent. At the amount of 18 gr salt, it produced a max voltage of 4,12 Volt and a max electric current of 0,19 Ampere, while the 28 gr of salt produced a max voltage of 4,49 Volt and a max electric current of 0,21 Ampere. In testing the operating time, the salt electrolyte with 18 gr salt produces a max operating time of ± 88 hours of use. Then, the two types of tests were carried out again using seawater electrolyte to determine the feasibility of the two types of characteristics of aliminum electrodes in seawater. The test produces a max voltage of 3,98 Volt and a max electric current of 0,22 Ampere and produces a max operating time of ± 80 hours. Compared with previous studies using magnesium electrodes, it is concluded that aluminum electrodes can be arranged in such a way as to obtain electrical characteristics that are close to magnesiums results, but overall aluminum electrodes need to be tested by a mixture of metals (alloy) to get better testing results.
2019
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UI - Skripsi Membership  Universitas Indonesia Library