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）：0 e% _; [6 Z; c {$ s, q
+ H5 M' P# R$ v" J; K/ EHyperloop Passenger Capsule
2 k7 y7 L: {# g6 a; w9 C1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
1 o: J! f: R$ P, ~) p2. Up to 60% of this air is bypassed:
, r, z" t/ N$ F% }4 Va. The air travels via a narrow tube near bottom of the capsule to the tail. 9 Q2 e2 E2 S5 i9 O. e) I, h
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 1 d5 G1 h( \( D
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. 3 a$ k0 ]' @9 M9 R: x
a. This air is stored in onboard composite overwrap pressure vessels. / t3 [* i; l$ h1 p
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. ' ]9 u U0 X) B5 D2 x. b
4. An onboard water tank is used for cooling of the air. x0 I8 D& C0 @4 n: x* O0 [
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). + r. {7 M$ C1 \1 ~6 X: r8 ]: i
b. The steam is stored onboard until reaching the station.
/ J! t( I8 h7 r7 i* V1 L+ S2 [6 Ac. Water and steam tanks are changed automatically at each stop.
6 j. {/ ~) _& O5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: - V5 ?$ K8 J. C- R2 X. T) n
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. ; y) s1 F- A* y& y# Q8 H
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.
4 v6 a1 N& N( p# p! C `. Gc. 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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