TA的每日心情 | 擦汗
2019-6-16 23:34 |
|---|
签到天数: 1277 天 [LV.10]大乘
|
* r! g) w. m% a5 x' Wmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：/ E9 _4 R- V& s+ Z* ~! g8 x; U
) S/ @* V& a, ~, Z: ]/ u0 \
Hyperloop Passenger Capsule 0 V) t1 e# w! {$ V6 W% }
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
5 e6 K( q0 ~3 H/ w/ K, E, g5 [2. Up to 60% of this air is bypassed:
' Z. v t0 e9 @/ Y7 ^' }a. The air travels via a narrow tube near bottom of the capsule to the tail.
6 D+ V) L! U8 x2 u5 r$ hb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
2 Q9 H% Y$ Q, K& G( m3. 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. 0 S8 e1 ~ V! @1 o7 | \
a. This air is stored in onboard composite overwrap pressure vessels. : z% g) K+ w- r; b [! u
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
( |/ P4 _7 I& D' z, g$ B4. An onboard water tank is used for cooling of the air. 8 g% L. M; ^! p% T) `9 v7 m1 i
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). ( H, b8 i: y& @) l+ v) a# l: @
b. The steam is stored onboard until reaching the station. 0 F8 v- H7 A0 @, V
c. Water and steam tanks are changed automatically at each stop. 9 z, X. x1 k' B' ]/ u/ W: y4 R. w
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ; P% k0 [$ l" `* O- X
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
* r- z/ ^9 S' ?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, O) t, K; }# z/ C) y0 fc. Onboard batteries are changed at each stop and charged at the stations. |
|
雷达卡
发表于 2017-10-18 12:30:25
显身卡
- C9 { `3 X1 _% q+ \; k
楼主