Design of a solar dryer with fins and baffles for rice-cracker drying

2018 International Joint Conference on Materials Science and Mechanical Engineering

Pawakote, Panuwat^1 ; Koonsrisuk, Atit^1

School of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima

30000, Thailand^1

关键词: Airflow channels;    Mass flow rate;    Outlet temperature;    Rice crackers;    Solar collector areas;    Thailand;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/383/1/012065/pdf
DOI  :  10.1088/1757-899X/383/1/012065

来源: IOP

【 摘 要 】

The rice-cracker is one of the popular snacks in Thailand. To produce it, drying is a necessary preparative step. This research aims to investigate the performance of a solar dryer with fins and baffles installed in the air flow channels of the dryer for rice crackers. The cover made of a 4 mm thickness poly methyl methacrylate (PMMA). A mathematical model was developed and used to design a solar dryer. The simulations revealed that a minimum of 2.25 m2 solar collector area is required for solar radiation of 628.93 W/m2 and the mass flow rate of 34 kg/hr and outlet temperature of 64.9°C are obtained. In addition, the collector efficiency is 52.01%.