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）：/ F% L- t' |) S# A, H! r
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Hyperloop Passenger Capsule
2 ?$ N1 k L K. o1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
# o. ]9 V: ]% [5 {: n2. Up to 60% of this air is bypassed:
4 [5 ^. [" j2 m1 P+ g3 m5 A: La. The air travels via a narrow tube near bottom of the capsule to the tail. ; m4 t1 R! \( x% V$ B
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
. X+ \: H( c" c4 h) P7 B. `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.
; T c' E. v8 la. This air is stored in onboard composite overwrap pressure vessels. ! y7 ^3 h. d8 P/ {. q- b4 I
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
% m6 H+ `9 u6 z9 w8 I4. An onboard water tank is used for cooling of the air. , S2 I) B7 t. D2 e8 l' e6 F9 d. ]
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).
m2 [- v3 r/ j6 `; @b. The steam is stored onboard until reaching the station. 5 V* t+ H* o( M9 ~ a
c. Water and steam tanks are changed automatically at each stop. . ^% e' K8 z. q) n O
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: / {# }9 p6 s# W# j! C( b j) s0 J
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
4 e8 W5 q8 Y0 X1 }5 v: ub. 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.
+ X- `* ^& {: F6 g' U7 l% ic. 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
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