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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musk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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Hyperloop Passenger Capsule 1 a1 ?8 g: i6 Z9 k
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
7 I; L U" b7 s& F) h) y2. Up to 60% of this air is bypassed: % m; y2 {4 H8 g- f1 u
a. The air travels via a narrow tube near bottom of the capsule to the tail.
, [' U) p4 V; _% E* h; lb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. ( m" u8 }9 X. Y( Z R% g% w
3. Up to 0.44 lb/s (0.2 kg/s) of air is cooled and compressed an additional 5.2:1 for the passenger version with additional cooling afterward. 7 r8 x7 I; a* D' l$ b0 s$ I( ?& {
a. This air is stored in onboard composite overwrap pressure vessels. 6 C' t# h0 H# N/ D: f
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. : L |8 {. L, Q, D: @! U: ?" |
4. An onboard water tank is used for cooling of the air. 1 n8 ?8 ]2 Q& {3 v
a. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). $ j! d. z; n( [, f, S7 r8 N- m7 ~
b. The steam is stored onboard until reaching the station.
8 k# f2 Q, u7 Nc. Water and steam tanks are changed automatically at each stop.
& H5 w7 `9 H" w2 [: r4 j5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
* F/ T# o* E3 U% g4 U# Ta. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 6 Z: p3 p5 Y# ^: l# \
b. An estimated 3,400 lb (1,500 kg) of batteries provides 45 minutes of onboard compressor power, which is more than sufficient for the travel time with added reserve backup power. / W H5 I4 v4 n
c. Onboard batteries are changed at each stop and charged at the stations. |
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雷达卡
发表于 2017-10-18 12:30:25
显身卡
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