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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Hyperloop Passenger Capsule
8 c: ^3 C, V: E2 J1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. ' y l6 v- ~, J+ o, l" n& s9 C
2. Up to 60% of this air is bypassed:
2 a1 e% N4 b4 w O& Y( M+ @0 Xa. The air travels via a narrow tube near bottom of the capsule to the tail.
( S A& \2 o& [* c% Kb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. * P7 j5 |. }; f7 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. # }, N) L# M. a( h/ r: x
a. This air is stored in onboard composite overwrap pressure vessels. ) W5 M1 c2 x1 c1 J2 }+ E1 l
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
4 U: }; U8 b: g2 [$ x' i- J4. An onboard water tank is used for cooling of the air.
- \7 q6 q! P+ N' Ga. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). 5 \: W8 s4 M, V& b, V6 K
b. The steam is stored onboard until reaching the station. 7 k) W0 k7 \; @5 \- b( a# Z
c. Water and steam tanks are changed automatically at each stop. & Y8 N# V" T3 T0 R" D$ T2 Y
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
) Y: W% ~ @+ h5 o' Pa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. ' ], a% e3 \8 ~# @ l* {! n% @
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.
. s5 P; e) \" d: jc. 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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