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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V/ l/ j! {8 dmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：- E7 B# q7 I. N& I' {
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Hyperloop Passenger Capsule + K: Z- {0 K; S$ o: R) S" Z
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. $ F- U, J- Q7 q/ Y- X5 n. y% t: G
2. Up to 60% of this air is bypassed: , L3 z& F- j" `0 P6 X
a. The air travels via a narrow tube near bottom of the capsule to the tail.
' R" G0 U* i! Y, m) `3 [b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
% L1 v9 D3 A @. G3. 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. + F6 ?' `! s$ a4 _
a. This air is stored in onboard composite overwrap pressure vessels. " B7 C- l3 W7 |
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. . M! d6 i C' h; p
4. An onboard water tank is used for cooling of the air. 7 y3 K1 Z8 D% g
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). , F6 i% w X, a( ^# L1 p3 V
b. The steam is stored onboard until reaching the station.
3 c& W7 |3 h/ q9 k& R% ~c. Water and steam tanks are changed automatically at each stop. % c3 m& J e& i
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
2 D( p+ b3 d* L/ Wa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
) I* X# e! @8 kb. 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.
; ^7 e8 A% t# H7 h* S7 mc. 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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