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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! n; [: Z8 l6 T$ b: ?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
# B7 |. i* K) X6 j, `7 ?- I1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. + ^7 V- } N$ w X& y) N- g( I. b
2. Up to 60% of this air is bypassed:
# I7 g. ^% l4 U- h5 fa. The air travels via a narrow tube near bottom of the capsule to the tail. * F. G' z! g' r: \
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. ( `9 t" ^6 E7 C( O! K; L1 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. 2 d X" ?- E# u P2 Z, y* x2 P
a. This air is stored in onboard composite overwrap pressure vessels. % H, n7 f# o8 q. c) v: A
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
8 l) k" j' t' J7 C, w/ a# |) m$ x4. An onboard water tank is used for cooling of the air. 6 ?2 a& V# O- Y# g' ^. ^" i% `
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).
# V, L) q5 n2 v& K/ ]5 E5 ^b. The steam is stored onboard until reaching the station. T. ^. O) j1 Y/ g: y) c- h
c. Water and steam tanks are changed automatically at each stop. - ?! A. ]5 ?+ M' l1 \) f1 B8 b7 f3 U
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ( W& H R* a8 ?% l! j" p) a+ j8 \7 R
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
' F, p6 o' G/ @: h& z: V Jb. 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.
1 o8 H7 ~: f# u( t4 n& Ac. 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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