High Solar Flux Dryer for Various Agricultural Products = High Solar Flux Dryer for Various Agricultural Products

다국어 초록 (Multilingual Abstract)

The main purpose of this paper is to develop a solar dryer capable of drying various agricultural products. The solar agricultural products dryer consists of a conical concentrators, heat storage tank and dryer. The inside temperature of the dryer is controlled by the control box, which consisted controller (FOX-2001, Daesung ENG, KOREA), magnetic switch, earth leakage breaker, operation lamp, temperature relay, timer relay and digital temperature compensated crystal oscillator (DTXCO). Pumpkin and carrots were used as agricultural products. For the performance evaluation, the time required to reach the set temperature and the humidity were measured. It was observed that the inside chamber temperature was kept at the set temperature for 10 hours. Experimental results showed that the drying times which take to reach the set drying temperature of 40℃, 50℃, and 60℃ were 20 minutes, 45 minutes, and 60minutes, and the temperature inside the dryer was maintained well at the set temperature for 10 hours. The experimental results were considered to be suitable for drying various crops. For future study, simulations will be used to analyze the temperature distribution inside the dryer and to modify the system for a smoother drying. Economic analysis will also be carried out to demonstrate that the proposed solar agricultural product dryer is economic energy-saving devices for farmers.