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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# C% I. s3 e+ O( m0 J4 A& ^" p6 D. Zmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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# q2 |. @) \" u$ c1 V* z. R+ dHyperloop Passenger Capsule
. w2 g' g# h* y; k& Z# k1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
: R0 ?" U" D/ E" [& }- f( y2. Up to 60% of this air is bypassed:
! t7 q6 O' |8 q% o2 Y, Ga. The air travels via a narrow tube near bottom of the capsule to the tail. ' _; ?; u- m& |& i# D
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
6 m; O% L! L0 w: ~, \0 f. d3. 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.
* g( A3 b4 L" h7 u8 j/ _/ B6 ` Da. This air is stored in onboard composite overwrap pressure vessels. ; K! i1 ?& S. Y, K9 X
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 6 ~& C+ D6 ]0 M. Z
4. An onboard water tank is used for cooling of the air.
7 G4 }5 y) Q. s. Z: W3 f2 ]6 e" }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).
) }* Y& u1 A3 B5 x% K5 z/ m2 Jb. The steam is stored onboard until reaching the station. / c) C: u- h! }
c. Water and steam tanks are changed automatically at each stop.
0 b- A4 @2 d+ _5 k7 D' s- F7 |0 e5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
$ x5 W$ c$ h4 ^" M, ka. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. m6 o0 O) T# J, \, c$ J
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.
, Y) V6 ` _2 K; I6 G* o P2 tc. 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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