An Experimental Study on Internal Temperature Changes of Type Ⅳ Cylinder according to Filling with Compressed Hydrogen Gas

압축수소가스 충전에 따른 타입 IV 용기의 온도 변화에 관한 실험적 연구

In this paper, the study is researched for related safety standards having experiments concerning temperature changes in type IV cylinder of the Hydrogen fuel cell vehicle. Experiments were performed to acquire temperature data of type IV cylinder according to filling time. The experimental results are shown that internal temperatures of type Ⅳ vessel are over $85^{\circ}C$ at all measured points after 5 minutes at filling 35 MPa and the highest temperature is getting lower when the residual gases are more remained. Consequently, the safety standards need properly limited value through further study for filling flow rate and filling time.