PERUBAHAN KELEMBABAN RELATIF DAN KANDUNGAN UAP AIR UDARA PENGERING SELAMA PENGERINGAN CHIP SINGKONG DENGAN CABINET DRYER DENGAN PEREKAMAN DATA MENGGUNAKAN MULTI MEDIA CARD

• Main Authors: Susanti, Devi Yuni, Karyadi, Joko Nugroho Wahyu, Hartanto, Oky Setyawan
• Format: Article PeerReviewed
• Language: English
• Published: 2013
• Subjects: Makalah Seminar; Makalah prosiding
• Online Access: https://repository.ugm.ac.id/33119/1/9-219.pdf; https://repository.ugm.ac.id/33119/
• Institution: Universitas Gadjah Mada

The change on physical properties of drying air and the moisture content of cassava chip are important to be explored in order to evaluate drying process and the performance of dryer. The aim of this research was to evaluate the change on relative humidity of drying air, the amount of water vapour based on relative humidity record by multi media card and accumulation of drying process. The drying process was set in 3 variation of temperature (50, 60 and 70 °C) and 3 variation of chip’s mass (4, 8 and 12 kg). The amount of chip’s mass did not affect significantly on the rate of its temperature increasing, its evaporation rate and the accumulation of water vapour in drying air. The relative humidity of the air was decreased during drying. It showed that the accumulation of water vapour was removed largely by exhaust fan and its accumulation did not affect on the increasing of relative humidity significantly. Its accumulation can be seen as the difference of relative humidity in drying air in specific mass and zero mass of cassava chip.