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Ridwan, K.A
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

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ISSN: 1693-9050 E-ISSN: 2623-1417 https://jurnal.polsri.ac.id/index.php/kimia/index 20 PENGARUH DAYA MICROWAVE DALAM PROSES PENGOLAHAN MINYAK MAWAR (Rosa hybrida) DAN MINYAK YLANG-YLANG (Cananga odorata genuine) DENGAN METODE MICROWAVE HYDRODISTILLATION Effendy, Sahrul; Aswan, Arizal; Ridwan, K.A; ., Zurohaina; Ramadhania, Nadhira; Amanda, Thalia Junica
KINETIKA Vol. 11 No. 3 (2020): KINETIKA 01112020
Publisher : Politeknik Negeri Sriwijaya

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Rose and ylang-ylang flower oil is usually obtained by conventional hydrodistillation and takes a long time. One of the new technologies that can be used is hydro distillation using a microwave. This study aims to study the effect of time and microwave power on the yield of essential oils obtained and will be analyzed with rose oil standards ISO 9842: 2003 and CAS 8007-01-0 and ylang-ylang flower oil SNI 06-7224-2006. The variables tested in this study were the ingredients of rose and ylang-ylang flowers (fresh and wilted), weighing 200 grams and 100 grams, respectively. The microwave power used is 180, 270, 360, 450 Watt. The operating conditions in this method are at 1 atm. The highest yield of rose flower oil yield was at the power of 450 Watt minutes to 90 of 0.1266%, while the highest yield of ylang-ylang flower oil was at power of 360 watts to 90 minutes of 0.2758%. The lowest value of specific energy consumption (SEC) in roses is at a power of 450 watts of 2.0574 kWh / gr. The SEC value of ylang-ylang flower oil is at a power of 360 watts of 2.1318 kWh / gr.
imulasi Prototype Pembangkit Listrik Tenaga Mikrohidro Turbin Crossflow Ditinjau dari Ketinggian, Debit dan Arah Aliran Ridwan, K.A; Lestari, Sutini Pujiastuti; Rusnadi, Irawan; ., Erlinawati; Rahayu, Atika; Mahendra, Evando; Pratama, Wahyudi
KINETIKA Vol. 12 No. 1 (2021): KINETIKA 01032021
Publisher : Politeknik Negeri Sriwijaya

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The energy crisis prompted the Indonesian government to change the paradigm towards new and renewable energy, from alternative energy to main energy. In order to overcome the electrical energy crisis, then conducted research on new and renewable energy. Utilization of microhydro based energy generation into one solution to be applied in effort to overcome this crisis. Microhydro power plant (PLTMH) is carried out by utilizing flow velocity (river flow) or head potential (waterfall) with water turbine connected to a generator so that it can convert mechanical energy from the turbine into electrical energy. Type of turbine used is crossflow turbine. This simulation is by varying the head potential (1.6 m, 1.8m, 2 m, 2.2 m, 2.4 m) and the direction of flow (horizontal overshoot, vertical overshoot, and undershoot) generated electrical energy. Based on the research results, the optimal flow direction horizontal overshoot flow which produces flow discharge 20 liter/min, the electrical energy 16 watt, and at height of 2.4 meters and the electrical energy15.3 watt.
Co-Authors ., Erlinawati ., Zurohaina Amanda, Thalia Junica Arizal Aswan Effendy, Sahrul Irawan Rusnadi Mahendra, Evando Pratama, Wahyudi Rahayu, Atika Ramadhania, Nadhira Sutini Pujiastuti Lestari