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）：" b' A5 O9 e9 S3 M" _5 |' D
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Hyperloop Passenger Capsule 6 @4 N4 d; d8 D; F! X! ?# J* X
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. ) l3 B, B: q4 \* J4 l1 k9 ^; s. c3 p
2. Up to 60% of this air is bypassed: # J; b* K ~. T) ]8 t$ H5 X
a. The air travels via a narrow tube near bottom of the capsule to the tail.
6 f5 y) J! b9 j; b- f( _b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 6 R1 |3 O( z: F- P' d+ o; f) u
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. / d' y4 D d# H4 f I
a. This air is stored in onboard composite overwrap pressure vessels. , |7 j4 _0 \, O5 ]4 }
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 8 |0 |( l# w6 k: W; c0 H' t" P
4. An onboard water tank is used for cooling of the air.
3 |, M: s" A1 {$ U& 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). G; o) v/ R% Z' L
b. The steam is stored onboard until reaching the station.
4 n; J9 o4 p3 E. gc. Water and steam tanks are changed automatically at each stop. % {! \/ d9 U* w8 a6 c
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
& ` v$ d5 F' f) ^% c# |0 aa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. ' O$ U1 t% T% s+ L) 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. ( o( {# H5 ?5 B
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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