Hadi, Prayitno and Angga, Darma Prabowo and Angelia, Eka Salsabillah and Rizal, Khairudin (2021) Peer Review, Jurnal Initial Investigation of Heat Transfer Characteristics of Rotary Dryer with Finned Vacuum Chamber System. Open Science and Technology. (Submitted)

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Abstract

One of the efforts to reduce the cost of providing heat energy is to use solar energy. However, solar energy is highly dependent on the weather, which is difficult for humans to control. Ovens are the leading solution in industries that operate continuously. One of the developments in oven technology is the rotary dryer system which has more even drying. However, the system still consumes a large amount of heat energy. Large energy consumption can be reduced by reducing the drying chamber pressure to less than atmospheric pressure (vacuum pressure), resulting in a decrease in the boiling point of water. Thus, the water content in the product can evaporate at lower temperatures. The density of air under vacuum conditions is smaller than atmospheric conditions. The decrease in air density causes the amount of heat energy needed to raise the air temperature less. Numerical studies carried out initial investigations of the transient heat transfer rate characteristics in fin rotary dryers. The results obtained show that the time needed is 30.33 seconds to raise the product temperature from ambient temperature to close to the drying room wall temperature at a pressure of 10 KPa, 47.67 seconds at a pressure of 50 KPa, and 81 seconds at a pressure of 1 atmosphere. Thus, a rotating vacuum chamber can speed up drying time and is worth continuing with experimental studies.

Item Type:	Other
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Mesin
Depositing User:	Hadi Prayitno
Date Deposited:	17 Feb 2022 07:49
Last Modified:	17 Feb 2022 07:49
URI:	http://repository.lppm.unila.ac.id/id/eprint/39355

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