Devina Sanchia Samosir - Academia.edu (original) (raw)
Uploads
Papers by Devina Sanchia Samosir
Proses pengeringan secara konvensional membutuhkan waktu yang relatif lama untuk mendapatkan prod... more Proses pengeringan secara konvensional membutuhkan waktu yang relatif lama untuk mendapatkan produk kering. Pemanfaatan sumber energi tak terbarukan yaitu energi surya sebagai sumber untuk mendapatkan energi listrik dengan bantuan sel surya fotovoltaik pada prototype alat pengering tekwan menggunakan sel surya fotovoltaik yang mampu mengurangi waktu pengeringan. Tekwan sebagai objek penelitian kinerja alat dengan rumusan masalah analisis energi dan exergy udara pada pengeringan tekwan dengan variabel tetap berupa bahan baku, jumlah bahan baku, massa bahan baku, dan temperatur pengeringan sedangkan variabel berubah berupa waktu pengeringan. Penurunan kadar H2O secara optimum pada penelitian ini terdapat pada variasi 5 jam pengeringan dengan kadar H2O akhir 34%. Hasil analisis energi dan exergy diperoleh kinerja optimum terdapat pada variasi 4 jam pengeringan dengan efisiensi termal 14,82%, efisiensi exergy 12,54%, dan kehancuran exergy 37,942kJ
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment)
Due to the rising demand for motor vehicle fuel, Indonesia's requirement for fossil fuels ris... more Due to the rising demand for motor vehicle fuel, Indonesia's requirement for fossil fuels rises by an average of 10% annually. The supply of fossil energy, which serves as the primary raw material for generating fuel oil, is negatively correlated with the demand for fuel (BBM). Fresh Fruit Bunches (FFB), Empty Fruit Bunches (EFB), and fiber were the types of oil palm bunches employed in this investigation. EFB and fiber are industrial by products that are currently being used inefficiently and frequently pollute the environment. This trash is still only very minimally processed; it is still stored, burned in the incinerator, used as mulch on oil palm fields, and composted. 51.2 percent cellulose and 16.30 percent lignin are both present in EFB. Lignin makes up 20.0 percent of fiber, whereas cellulose makes up 57.0 percent. Through chemical and enzymatic procedures, this cellulose content may be exploited as a source of reducing sugars. FFB is used as a benchmark to evaluate how ...
Proses pengeringan secara konvensional membutuhkan waktu yang relatif lama untuk mendapatkan prod... more Proses pengeringan secara konvensional membutuhkan waktu yang relatif lama untuk mendapatkan produk kering. Pemanfaatan sumber energi tak terbarukan yaitu energi surya sebagai sumber untuk mendapatkan energi listrik dengan bantuan sel surya fotovoltaik pada prototype alat pengering tekwan menggunakan sel surya fotovoltaik yang mampu mengurangi waktu pengeringan. Tekwan sebagai objek penelitian kinerja alat dengan rumusan masalah analisis energi dan exergy udara pada pengeringan tekwan dengan variabel tetap berupa bahan baku, jumlah bahan baku, massa bahan baku, dan temperatur pengeringan sedangkan variabel berubah berupa waktu pengeringan. Penurunan kadar H2O secara optimum pada penelitian ini terdapat pada variasi 5 jam pengeringan dengan kadar H2O akhir 34%. Hasil analisis energi dan exergy diperoleh kinerja optimum terdapat pada variasi 4 jam pengeringan dengan efisiensi termal 14,82%, efisiensi exergy 12,54%, dan kehancuran exergy 37,942kJ
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment)
Due to the rising demand for motor vehicle fuel, Indonesia's requirement for fossil fuels ris... more Due to the rising demand for motor vehicle fuel, Indonesia's requirement for fossil fuels rises by an average of 10% annually. The supply of fossil energy, which serves as the primary raw material for generating fuel oil, is negatively correlated with the demand for fuel (BBM). Fresh Fruit Bunches (FFB), Empty Fruit Bunches (EFB), and fiber were the types of oil palm bunches employed in this investigation. EFB and fiber are industrial by products that are currently being used inefficiently and frequently pollute the environment. This trash is still only very minimally processed; it is still stored, burned in the incinerator, used as mulch on oil palm fields, and composted. 51.2 percent cellulose and 16.30 percent lignin are both present in EFB. Lignin makes up 20.0 percent of fiber, whereas cellulose makes up 57.0 percent. Through chemical and enzymatic procedures, this cellulose content may be exploited as a source of reducing sugars. FFB is used as a benchmark to evaluate how ...