TA的每日心情 | 擦汗 2019-6-16 23:34 |
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签到天数: 1277 天 [LV.10]大乘
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本帖最后由 冰蚁 于 2015-4-24 10:39 编辑 4 I+ O* V" y2 c! o, J
晨枫 发表于 2015-4-24 08:51( q/ V& ?+ S$ }. ^. u& Z3 T( t& x; |
能耐多高的压?工业上高压容器和管道需要定期检查,民用汽车上怎么办?氢对金属材料有氢脆问题,在汽车有 ... # M5 t0 M+ q" _2 ?
4 x, r. ?3 L$ a! a! n8 L' D, e0 b另外,toyota 用的储氢罐在wiki上是这么写的:
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2 v+ S: y2 E; `, t7 k# d, ^! g5 r6 tA Hydrogen tank (other names- cartridge or canister) is used for hydrogen storage.[1][2][3] The first type IV hydrogen tanks for compressed hydrogen at 700 bars (70 MPa; 10,000 psi) were demonstrated in 2001, the first fuel cell vehicles on the road with type IV tanks are the Toyota FCHV, Mercedes-Benz F-Cell and the GM HydroGen4.
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9 s" Q1 J9 N+ b那么, type IV hydrogen tank 是个什么东西呢?
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) n6 ~+ N* ?" r8 P1 }5 U8 B! {Composite tanks such as carbon fiber with a polymer liner (thermoplastic). See rotational molding and fibre-reinforced plastic.
( x/ l% ]- G& a: o iApproximate maximum pressure, plastic/carbon 661 bars (66.1 MPa; 9,590 psi) and up.4 Y* `, d* `) d: U b
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从储氢罐到 fuel cell 的管道也可能都用得是这种材料。, n, Y6 U0 t. A3 W1 G, P2 F5 ]! b: B
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看介绍,目前趋势是低压储氢系统,比如30bar, 440psi的系统。这样可以用type I 的罐子。从减轻死重的角度,会用铝罐。/ X( \2 U7 q( ?2 X
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Metal tank (steel/aluminum)
" z& e# a( g4 j1 U2 a6 i# j SApproximate maximum pressure, aluminum 175 bars (17.5 MPa; 2,540 psi), steel 200 bars (20 MPa; 2,900 psi). |
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