Abstract.
This dissertation aims to study the distribution of the temperature inside the oven drying installation of a loop thermosyphon install check valves. The size of the oven 50 x 50 x 50 cm (wide x long x high) the size of a loop thermosyphon install check valves portion sizes evaporating 15 cm. The thermal conductivity of 47 cm condenser sections 47 cm and installation of fin diameter 30.70 cm thickness 1 mm phase pit ช์ของ Finn was 10 fin per length 1 in. By adding a working fluid is using water as working fluid and DI-Water + silver nano particles 0.5 wt% + potassium oleate 1 wt% (NA+OAK +) as the working fluid filling rate of the working fluid volume 50% evaporator. And compared with the distribution of the temperature inside the oven drying method install thermosyphon แบบวง round install check valves, wind speed, and 1.0 0.50 test, 1.50 2.0 M / S. And the temperature inside the oven was working 60 70 80,, found that the wind speed 1.50 M / s at 60 oven ลมร้อนที่ installed a loop thermosyphon install check valves. The working fluid NA+OAK + provides uniform temperature distribution of 1, and high thermal efficiency finally 69.01% compared to treatment conditions. And when the temperature increase in the drying efficiency of heat loss. In accordance with the gas volume increases.
Key words: a loop thermosyphon install check valves / working fluid / temperature.