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）：& K) u7 Y; F+ R3 \) G
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Hyperloop Passenger Capsule 8 R, z% u: S$ ]9 y
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. - j& y0 T2 U2 F H0 B
2. Up to 60% of this air is bypassed: & W/ N/ \: ?+ o0 l( h K0 \
a. The air travels via a narrow tube near bottom of the capsule to the tail. , F! w3 \4 k1 G* @* o7 T
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 4 W9 }+ t" i" c7 ^9 n8 W7 k( s O# F
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.
: s9 C% ?3 u, N# k% ka. This air is stored in onboard composite overwrap pressure vessels.
' B! k+ T7 [* V b7 `b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
0 y8 {, W" c) Z( ^$ Y+ `7 U4. An onboard water tank is used for cooling of the air. * a9 Y7 m! S; ?" V
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). & D" b3 i9 S0 V, B
b. The steam is stored onboard until reaching the station. 0 R/ Z+ y4 E9 |8 ?
c. Water and steam tanks are changed automatically at each stop. $ d. b3 _- S) e |6 E J( I( a6 A* [
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: + i$ [7 X6 {" J$ E# I7 c% W
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
$ Z! t4 K' J7 S: B+ hb. 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* C% g& z3 P5 t( }' F1 p9 M rc. 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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