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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" {% t% d, a6 t/ c sHyperloop Passenger Capsule
# x0 L! E8 r# |- c- l' H9 c3 W1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
) j. T- w' Q) v' i' `! V! q' |2. Up to 60% of this air is bypassed: 1 o- g9 l' K- n B; i
a. The air travels via a narrow tube near bottom of the capsule to the tail.
/ Y% \- f! e t* I- E. X: H9 b% Z! Kb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
% w, R( H4 p9 `" L3. 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. 9 |+ B! t6 ]" |) Z1 P6 g4 n
a. This air is stored in onboard composite overwrap pressure vessels. 9 l5 _3 b3 M- M6 ]+ ^
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
9 h" e1 @9 H* E1 ^8 d- ^4. An onboard water tank is used for cooling of the air. 0 @0 B0 E- @5 X, l
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). 6 r; b1 u3 L" p8 T
b. The steam is stored onboard until reaching the station.
% E* J3 i) P7 { Vc. Water and steam tanks are changed automatically at each stop. N. }7 G6 r' ]* f% o0 q# c+ f
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
$ j# N! Z' C+ T( _: |8 V, n" Z5 J1 _3 aa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. / l7 N' i8 N6 I' K. o/ n; O
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. 3 M* ~& p9 r1 T. L( ^
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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