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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% A) T; v1 i3 h7 y9 \musk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：4 u) D3 _ @. A$ s8 k2 D
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Hyperloop Passenger Capsule ( I3 e9 c" M! `: @2 ?
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
; [5 I) K' o( r1 G2 _2. Up to 60% of this air is bypassed:
4 K' ] |( g& e8 X0 N) Pa. The air travels via a narrow tube near bottom of the capsule to the tail. + n+ U* O- B# s. d* M$ @' p2 S
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
$ E+ u6 Q# N) |2 y+ P- y4 l# R3 o3. 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. - `# \* [, B3 q" o0 W1 B
a. This air is stored in onboard composite overwrap pressure vessels. , V0 j2 i4 u) c
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
* [7 r& u0 r4 D: s$ r4. An onboard water tank is used for cooling of the air. ' U( |! W4 c6 T& x' V5 X
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). " i5 P0 u- P. r4 f3 i0 g4 P
b. The steam is stored onboard until reaching the station. : X# ^; y5 R: D% ^1 |- |9 F7 k
c. Water and steam tanks are changed automatically at each stop. 3 V4 F( o" K# _* c; q9 s+ N
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ) l+ y, w0 v6 s# H+ J! @$ \8 O
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
+ L( b, s+ S+ y5 {" gb. 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.
. b5 R. |/ Q1 V; lc. 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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