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）：3 ]+ C% m& c4 F# p g5 E
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Hyperloop Passenger Capsule & S0 E9 L; j- w F% S
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. 1 Z4 ^& J+ U+ f; z& P' `* ~
2. Up to 60% of this air is bypassed: ' x; Q3 \& j, o! v/ z/ Q' Q/ P* e
a. The air travels via a narrow tube near bottom of the capsule to the tail.
9 q2 J. `+ X) t* M0 q1 q' B: d. Bb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. / | M1 R% k9 @+ S
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.
/ e: S0 z1 r/ d2 ^0 ra. This air is stored in onboard composite overwrap pressure vessels. ( O- q1 F, U- T/ o) n# D
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 9 K2 M# Q( e; O1 l, K" U) C2 Y. M/ U
4. An onboard water tank is used for cooling of the air. , x2 U" |1 W* B& a( _, t
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).
) L7 D) {9 ~5 V* f# }$ f& tb. The steam is stored onboard until reaching the station.
/ {' ^( A, S, H a# H7 a4 Zc. Water and steam tanks are changed automatically at each stop.
7 h: J' ^) K* m% ~( M5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: : U) W9 d. {6 W' A; t8 ~
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
- K3 f/ ^0 m2 fb. 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. + d/ d- A R( L# s. g: q& b
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
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