EVALUASI KINERJA PELAT KOLEKTOR DATAR DENGAN BERBAGAI MODEL TUBE KOLEKTOR SENAGAI PEMANAS AIR SURYA AKTIF
Abstract
Peningkatan populasi global hampir empat kali lipat dalam satu abad terakhir, tetapi industrialisasi yang cepat, diikuti oleh urbanisasi dan standar hidup yang tinggi, menyebabkan peningkatan enam kali lipat yang mengejutkan pada konsumsi air dunia. Menurut PBB, diperkirakan 2,7 miliar orang akan kekurangan akses ke air minum yang aman dan sekitar 2/3 dari populasi dunia akan menghadapi kelangkaan air pada tahun 2025. Saat ini, hampir 1% dari penduduk dunia yang tinggal di daerah pesisir bergantung pada air tawar dihasilkan oleh desalinasi. Namun, desalinasi air membutuhkan jumlah energi yang besar, dapat merusak organisme laut, dan efisiensi desalinasi biasanya kurang dari 20%. Dalam mengatasi masalah tersebut akan dirancang beberapa model tube kolektor dan akan di uji dengan memvariasikan laju aliran massa fluida: 1232,217 Kg/s, 2464,433 Kg/s, 3696,65 Kg/s, 4928,867 Kg/s, 6161,083 Kg/s. Tujuan penelitian ini untuk mendapatkan konfigurasi paling optimal dari kolektor pelat datar. Hasil penelitian ini menunjukan model tube serpentin menghasilkan efisiensi tertinggi dengan 48,67 % pada laju aliran massa 6161,083 Kg/s.
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