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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# H% E1 P3 U! F0 j4 Y9 mmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：7 }5 k: ~. j2 T" [5 i: t8 k9 q
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Hyperloop Passenger Capsule
$ u& E. t) p; a3 L1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. . a8 i: s0 w/ j( o# j
2. Up to 60% of this air is bypassed:
0 h* `% p* e h) `3 h, V) m# Ua. The air travels via a narrow tube near bottom of the capsule to the tail.
. {# Z% S5 |; x7 s5 Ab. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
4 H' `8 G- Q J4 D0 w+ Y; s, j Y1 R3. 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.
o% m- k6 t! Y# j8 j- V/ Sa. This air is stored in onboard composite overwrap pressure vessels. 4 D" t5 m& K- q, @
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 4 s! E7 E5 ~0 e$ E# ^
4. An onboard water tank is used for cooling of the air.
: B- m1 I, b1 @' {: a0 f' L" n1 Na. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
; g2 H; U% ?; Z. b5 e6 i8 t2 `* Tb. The steam is stored onboard until reaching the station. 3 E) C' K0 \7 R3 ]% l3 M
c. Water and steam tanks are changed automatically at each stop.
" E& G4 n3 h1 b* o$ d' s8 ^5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
' @$ M: w" w: b5 _/ Ca. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 5 a5 v) y* G. |$ z8 g
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.
5 _! y& M$ F. e' W, dc. 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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