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
' ]0 | @2 k0 @2 h+ q1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. # }* {8 M, W( y! J+ ?
2. Up to 60% of this air is bypassed:
+ t! ?+ M3 O: Ra. The air travels via a narrow tube near bottom of the capsule to the tail.
* N2 q% M& R$ g! @5 D8 z3 Pb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. ' _( Y- y" r/ g3 S% z+ j! y* g3 [! V
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.
/ g* n$ {, n5 {* \( u9 ba. This air is stored in onboard composite overwrap pressure vessels.
" O- a/ c0 V3 Y$ s; Eb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. / v, i6 f$ X) y; _, r% g
4. An onboard water tank is used for cooling of the air.
6 O* r* I5 X( m% ha. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). # k; M( f7 j, K- {! t1 t4 [
b. The steam is stored onboard until reaching the station. " ]9 r+ K1 A) v/ V8 e
c. Water and steam tanks are changed automatically at each stop. : v/ e9 P; {; I2 L9 x
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ) J' x' o0 U4 a1 W
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 0 d5 v2 i) K' ?1 i5 ?
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. , b! s9 p- ?8 n5 f: H& L! [% V. @9 P
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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