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INDONESIA
Jurnal Energi dan Lingkungan (Enerlink)
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : 02169541     EISSN : -     DOI : -
Core Subject : Science,
Energy
Enerlink adalah jurnal yang diterbitkan 2 kali setahun oleh Pusat Teknologi Pengembangan Sumberdaya Energi dan Industri Kimia BPPT di bidang energi dan lingkungan. Enerlink is a scientific journal that publishes twice annually by Centre of Energy Technology and Chemical Industry of BPPT.
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol. 11 No. 2 (2015)" : 4 Documents clear
OPTIMASI DESAIN SISTEM ALIRAN MEDIA PENGERING PUPUK SRF 10.000 TON/TAHUN M. Penta Helios; Bambang Teguh P
Jurnal Energi dan Lingkungan (Enerlink) Vol. 11 No. 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v11i2.1579

Abstract

Pabrik pupuk SRF kapasitas 10.000 ton/tahun berlokasi di Kabupaten Bantaeng, merupakan pilot plant percontohan bagi sektor pertanian di Indonesia. Sistem pengering terdiri 3 rotary dryer (RD). RD I dan II berfungsi sebagai pengering sedangkan RD III sebagai pengkondisian produk sampai kondisi atmosferik. Sistem pengering dirancang untuk menurunkan kadar air dari 8,18% menjadi 1,87%. Sejak pabrik dibangun, sistem belum beroperasi optimal sehingga kualitas produk sesuai desain belum dicapai. Tujuan dari penelitian ini adalah mengoptimasi desain termal sistem pengering agar menghasilkan produk sesuai desain dan hemat energi. Optimisasi dilakukan dengan mengganti bahan bakar kerosin menjadi solar, pemasukan udara tersier secara siklon, dan pemasangan pengaduk dengan kemiringan. Penelitian dilakukan dengan menghitung kesetimbangan panas dan massa di dalam sistem dan simulasi aliran media pengering menggunakan perangkat lunak CFD. Hasil perhitungan mengindikasikan agar sistem pengering bekerja optimal, RD I dan RD II memerlukan suplai udara tersier masing-masing sebesar 8004,23 kg/jam dan 6171,29 kg/jam, dan konsumsi solar masingmasing 13,1 kg/jam dan 14,3 kg/jam. Aliran masuk media pengering melalui cyclone-nozzle menghasilkan profil aliran yang berpusar sepanjang pengering, yang akan menghasilkanproses pengeringan lebih efektif, dan terbukti aman terhadap kondensasi uap air pada sisi keluar.Kata kunci: pupuk SRF, rotary dryer, desain, simulasi, optimasi, CFD
PENGEMBANGAN KATALIS BERBASIS NiMo ALUMINA UNTUK REAKSI HIDRODEOKSIGENASI MINYAK NABATI MENJADI BIOAVTUR Bralin Dwiratna; Soebagjo Soebagjo
Jurnal Energi dan Lingkungan (Enerlink) Vol. 11 No. 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v11i2.1580

Abstract

Catalysts NiMoP/γ-Al O -B O have been successfully synthesized by impregnation method. The 2 3 2 3catalyst was developed to process of vegetable oil hydrodeoxygenation (HDO). The effect of theaddition of boron and phosphorus on the activity and selectivity was studied in this research . Inaddition , the determination of appropriate operating conditions were also studied in order to obtainproducts with good conversion and selectivity. The research was conducted on the preparation of thehydrodeoxygenation catalyst , test the activity and selectivity of hydrodeoxygenation catalysts, andcatalysts characterization using BET , XRD and AAS . To determine the performance of the catalyst ,the hydrodeoxygenation catalysts were tested their activity and selectivity which took place in a batchreactor at a pressure of 20-60 bar and a temperature of 320-360 ° C. The composition of products wereanalyzed by using a Gas Cromatography . From the implementation of HDO reaction of vegetable oilwith NiMoP( 0.6 % )/γ- Al O - B O (1.7 %) catalyst, the value of conversion obtained was 81.45 % at 60 2 3 2 3o bar operating pressure conditions and temperature 360 C .Keywords: vegetable oil , hidrodeoksigenasi , catalyst Nimo - γalumina
PEMANFAATAN REMOTE SOURCE SOLAR LIGHTING (RSSL) UNTUK PENGHEMATAN ENERGI DI GEDUNG KOMERSIAL Suryo Busono; Edi Hilmawan
Jurnal Energi dan Lingkungan (Enerlink) Vol. 11 No. 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v11i2.1581

Abstract

Remote Source Solar Lighting (RSSL) is an innovation in lighting technology in the building to transfernatural light into areas which are not covered by conventional natural lighting techniques. In this study,RSSL applications in an Office Building in the Puspiptek Area Tangsel has been examined.Measurement and simulation are used evaluate the effectiveness of the use of RSSL in illuminatingareas that do not have access to outside light. Advanced simulation was conducted to compare theuse of artificial light to produce the same illumination level. The measurement results show that theSolar Light Collector combined with Light Tube is able to transfer light from the outside into the roomwith a level of efficiency of 39.48%. Utilization of light focusing module can improve the efficiency oflight distribution with an efficiency of up to 56.1%.The simulation results show that RSSL with light tubediameter of 35 cm, capable of illuminating an area that does not have access to the outside withillumination level up to 219 Lux at the zenith ilumination of 89000 Lux. However, RSSL is no longereffective when the zenith illumination down to 26000 Lux. Comparison between CFL bulbs with RSSL,with the same lighting point, when the zenith illumination levelis average or higher, RSSL providelighting levels on par with CFL bulbs, but still lower than the LED lights. When the zenith illumination islow / minimal then 14 points RSSL only able to provide lighting equivalent to 8 points CFL.Key Words: Energy conservation in commercial building, smart building, natural lighting, RemoteSource Solar Lighting 
OPTIMASI PROSES PRODUKSI BIODIESEL DARI MINYAK KELAPA SAWIT DAN JARAK PAGAR DENGAN MENGGUNAKAN KATALIS HETEROGEN KALSIUM OKSIDA Galuh Wirama Murti; Nurdiah Rahmawati; Septina Is Heriyanti; Zulaicha Dwi Hastuti
Jurnal Energi dan Lingkungan (Enerlink) Vol. 11 No. 2 (2015)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/elk.v11i2.1582

Abstract

Production of biodiesel has been conducted through several processes such as esterification andtransesterification by homogeneous catalyst in which use either acidic or alkaline substances.Homogeneous catalysts have some negative impacts to the environment, because technically itrequires further treatment process such as washing. Therefore, the use of heterogeneouscatalysts is proposed to be best way to overcome this problem. The advantages of heterogeneouscatalysts are not only for its ease in recovery but also for its reusability. Moreover, it isenvironmentally friendly and cheap which only undergo a single process of transesterification.Calcium oxide is well-known as one of heterogeneous catalysts. It were activated by pretreatmentwith methanol and then it was continued by transesterification reaction. The optimal reactiono conditions were obtained at temperature 60 C, atmospheric pressure, and 4 h reaction time.Calcium oxides shows good activity in transesterification reaction using either palm or jatropha oil.The highest conversion of palm oil is approximately 62,51% within catalyst 3% by weight oil,whereas jatropha oil is approximately 53.10 % within catalyst 10% by weight oil. The regeneratedcatalyst shows low catalytic activity which is indicated by small presence of methyl ester in theproduct.Key words : biodiesel, heterogen catalyst, calcium oxide, palm oil, jatropha oil

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