Potensi Material Berubah Fasa PEG-400 sebagai Sistem Cold Storage Sayur Selada
نویسندگان
چکیده
Kesegaran sayur dapat dijaga dengan menyimpan dalam cold storage pada kondisi sejuk (5-10 °C). Polietilen glikol (PEG)-400 merupakan salah satu phase change material (PCM) yang memiliki rentang titik lebur 4 °C hingga 8 dan panas laten cukup besar yaitu 187 kJ/kg sehingga berpotensi untuk dikembangkan sebagai sistem . Pada penelitian ini diuji potensi PCM PEG-400 sayur. Massa divariasikan dari 2 kg, 2,5 3 3,5 kotak styrofoam ukuran 34 x 25 30 cm ketebalan cm. Sayur selada massa 250 g. dibekukan di freezer lalu dimasukan ke telah berisi selada. Kotak ditutup rapat perubahan temperatur setiap waktu diukur mendekati lingkungan. Hasil menunjukkan kg efektif menurunkan 5 selama jam 10 35 menit.
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ژورنال
عنوان ژورنال: Jurnal Fisika Unand
سال: 2023
ISSN: ['2302-8491', '2686-2433']
DOI: https://doi.org/10.25077/jfu.12.3.506-510.2023