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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9 Q) {+ U- o8 ?: Wmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：1 y z3 y& p! J3 x, G! o! p o
$ N4 u0 o4 l1 v5 U. _Hyperloop Passenger Capsule
4 \% K2 G& ?& h6 F5 V- D9 V1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. 7 N! ^: t/ p1 o$ R
2. Up to 60% of this air is bypassed:
/ d& U3 }3 M( S1 ~! g+ V' _5 @a. The air travels via a narrow tube near bottom of the capsule to the tail.
$ }( w6 l4 f) A6 \: zb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
, N7 m8 V, S$ {4 ?5 b# J( y& Q: f3. 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.
4 | V& h0 x' \9 i8 K5 v6 Sa. This air is stored in onboard composite overwrap pressure vessels. ; n1 ]) m) K( K
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
( X- z; [9 U, x. P$ t: r: D4. An onboard water tank is used for cooling of the air. % I8 g2 I4 y+ G( A/ D' X) U
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). 0 D# q: F: Q4 D! b0 v
b. The steam is stored onboard until reaching the station.
4 ~5 `' H! q9 T/ pc. Water and steam tanks are changed automatically at each stop.
; Q7 @+ b. L$ q7 Z7 y8 ~3 }8 [5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: 8 o, P2 E5 o& v" h+ R
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 0 `. c8 y) k- O4 ?, i$ h
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. 6 W1 b- B4 `. Y; V
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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