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）：9 y/ ?/ N* H2 n! M6 v. f* q: k1 I
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Hyperloop Passenger Capsule 7 w' ]! f7 |- Z! R2 X$ j
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. ' X" N( S1 W! n
2. Up to 60% of this air is bypassed: ( G, {5 n" B5 v( |. f" \. H
a. The air travels via a narrow tube near bottom of the capsule to the tail.
# o+ I T6 e3 `, x# Cb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
; _( N& G+ ]' z; s9 M3. 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 o) [) R! d( e$ `
a. This air is stored in onboard composite overwrap pressure vessels.
0 s3 Y6 P! j2 d1 v) @' l) zb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 1 Q, b" \' r, m/ t: c( w
4. An onboard water tank is used for cooling of the air. 9 |" X. }: M# [# `; y
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). / b' Q8 ^6 R) f+ T% N3 B3 X( N
b. The steam is stored onboard until reaching the station.
) H- x/ _- ~) b. ], _c. Water and steam tanks are changed automatically at each stop. ! ?. l# S/ f& [" {- e
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
" o8 m- M& q! ja. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 3 X+ K! c$ W7 |' \+ y: ~3 D
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. . c! ^9 q- N0 }, r6 K
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
显身卡
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