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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) \0 J* A* b E5 Pmusk 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
. m! i n) P2 I/ v3 I8 x1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. ( t# i, w3 A1 a/ r- g
2. Up to 60% of this air is bypassed: 2 M% Z( U. I' W: S+ t4 u
a. The air travels via a narrow tube near bottom of the capsule to the tail.
* x, D6 |; j9 v# lb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 1 D5 J, S! t! F6 {& Q
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. 8 o6 x: s5 W9 `; Z( X/ P
a. This air is stored in onboard composite overwrap pressure vessels. 9 n# c! L% [6 `1 Z+ {7 F
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
6 W" D; D6 T+ q, T' m6 a6 {4. An onboard water tank is used for cooling of the air.
4 @# V T2 M1 b5 |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).
/ o. {( u; r2 t4 {7 B. W3 rb. The steam is stored onboard until reaching the station.
9 w' g+ |. k9 cc. Water and steam tanks are changed automatically at each stop. 7 w0 c( ?: z+ z4 |0 F7 W
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
8 }* {8 L/ z) u" wa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
1 h0 J, V% E( A5 y( e1 O0 ~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. , Z$ p' H; Y3 a' p. K
c. Onboard batteries are changed at each stop and charged at the stations. |
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