한국농공학회지 (Magazine of the Korean Society of Agricultural Engineers)
- 제14권3호
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- Pages.2697-2702
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- 1972
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- 0253-3146(pISSN)
동력분무기용 고무호오스에 관한 연구
Studies on the Rubber House for the Use of a Power Sprayer
초록
Controlling insects and diseases is an important factor for increasing yields of agricultural products. Power sprayer is widely used in cooperative controlling of insects and diseases for the production of rice and fruits. However, farmers need a long hose to use the power sprayer and that presently most of the farmers have hose made abroad. This study was designed to test the change of outside diameter and unit Iength, and to measure the pressure Ioss for three different kinds of hoses made domestically and one made in Japan. The resulte are as follows; 1. The three kinds of Korean-made hoses showed an increase in the length and a decrease in the outside diameter as the spraying pressure increase. The rate of change of the length ranged from 3.5% to 1.6% and the rate of change of the outside diameter from 3.5% to 1.4% respectively. 2. As the length of hose increases, the pressure loss was
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