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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C9 A7 r+ U) O+ J. h8 c* \Hyperloop Passenger Capsule 3 Y' z# o4 N$ ^! D
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
/ N7 \: [' T/ p9 s- y2. Up to 60% of this air is bypassed: ) ]5 S0 x, l$ a( t8 f; ^! Q
a. The air travels via a narrow tube near bottom of the capsule to the tail.
$ b3 j1 [5 h2 b' {9 J% sb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 1 }) P3 j0 y) D( q
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.
+ r: {+ e% v2 o3 o. k* ^. ?$ l0 ea. This air is stored in onboard composite overwrap pressure vessels. " U- p! x% G" u" c% B- w' w# e5 z
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
7 R: T+ ]4 V, J: x- F4. An onboard water tank is used for cooling of the air. " @; U' g+ d4 V( f
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). $ _7 L8 n2 G; B
b. The steam is stored onboard until reaching the station.
/ W( m3 f( \' V5 F) I V7 Ac. Water and steam tanks are changed automatically at each stop.
) t: T2 L+ |7 F5 ~5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
, b& N3 A& ], q- l! p- ja. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 0 U- v! m. p( K
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. : T- d5 Q% v1 |. N: 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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