ABSTRAKPemanfaatan sistem photovoltaic untuk mendapatkan enegi listrik dengan menggunakan sistem photovoltaic. Sistem Photovoltaic merupakan suatu modul yang digunakan untuk menyerap panas yang terpapar oleh sinar matahari yang diubah menjadi energi listrik. Tujuan dari peneilitian ini adalah penggunaan modul (panel surya) dengan kapasitas 100 wp dapat menyerap panas yang dikonversikan menjadi energi listrik sebanyak 100 watt/jam yang nantinya diharapkan dapat menjadi penganti listrik konvensional yang akan dimanfaatkan untuk proses penyulingan. Perlakuan yang dilakukan dengan memvariasi waktu penyulingan minyak gaharu divariasikan dalam 3 jam, 4,5 jam dan 6 jam dan waktu perendaman bahan baku juga divariasikan dalam 14 hari, 16 hari, 18 hari dan 20 hari. Pengujian minyak nilam hasil penyulingan menggunakan solarcell dengan memanfaatkan metode photovoltaic untuk analisa senyawa menggunakan kromatografi Gas-Spektrometri Massa (GC-MS) senyawa kimia yang terindentifikasi memiliki % luas terbesar adalah gualiol yaitu sebesar 52,75%, selinene sebesar 17,80% dan panasinsen yaitu sebesar 5,90%. Pelakuan perendaman selama 18 hari dengan waktu operasi selama 6 jam. Sedangkan pada pengujian kerapatan dari minyak gaharu diperoleh nilai tertinggi pada waktu destilat selama 3 jam dengan lama perendaman 16 hari yaitu sebesar 0,8894 kg/cm3. Waktu penyulingan berpengaruh terhadap berat jenis minyak, semakin lama proses penyulingan maka, semakin meningkat berat jenis yang diperoleh. Kata kunci : Penyulingan; Essensial oil; Photovoltaic;
Biodegradable polymers are seen as a potential solution for the environment generated by plastic waste. The purpose of this study was to see the effect of adding a catalyst to the manufacture of PLA/PCL-Catechin-Chitosan as a raw material for making plastics . This research was carried out with variations in the addition of ZnO catalyst 0.1 % (PPXya), 0.2% (PPXyb) and 0.3% (PPXyc ). From the results of the analysis using Fourier Transform Infrared (FTIR) obtained stretching groups of OH, CO and C= O at wavelengths (3860, 1060 and 1753) cm-1 at the addition of 0.3% ZnO catalyst (PPXyc ). Based on the analysis of the thermal stability using Thermogravimetry (TGA) the decomposition temperature was obtained at 387℃ with the addition of catalyst 0.3% (PPXyc ). Morphological analysis using Scanning Electron Microscopy (SEM) showed that the surface structure of PLA was in the form of widespread lumps. The more concentration of additional catalyst used can affect the formation of PLA/PCL-Catechin-Chitosan. The result of the tensile test tensile analysus are greater the addition of ZnO catalyst in the sample PLA-PCL-Catechin-hitosan can to be able to increase the tensile value of the of the sample.
Photovoltaic system is a module that is used to absorb heat that is exposed to sunlight which is converted into electrical energy. The purpose of this research is to use a solar panel with a capacity of 100 wp to absorb heat which is converted into electrical energy as much as 100 watts/hour which is later expected to be a substitute for conventional electricity which will be used for the refining process. The treatment was carried out by varying the drying time of citronella leaves 0, 1, 2 and 3 days and the time for citronella oil distillation operation for 1.5, 3, 4.5 and 6 hours. By using a solar cell that has a capacity of 100 wp for 6 hours a day when exposed to sunlight it can produce power of 600 watts / day. Testing of distilled citronella oil using the photovoltaic method, the best density was obtained at a distillation time of 1.5 hours with a drying time of 1 day of 0.8889 kg/cm3. Refractive index testing, drying time of 1 day with a distillation time of 1.5 hours the value obtained is 1.4655. The more the chain components with the oxygen group are also distilled, the density of the oil will increase so that the incoming light is more difficult to refract. The yield of lemongrass oil at a drying time of 3 days with a distillation time of 6 hours the value obtained was 2.30%. Drying and withering the amount of material that can be distilled per distillation increases, so that the refining of the material in a dry state is more efficient. The best distillation time is 6 hours, this occurs due to the longer a material receives heat, the more evenly distributed the diffusion process causes the distillation process to be more efficient and greatly affects the yield and oil yield.
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