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）：0 |4 H9 C+ f; t# |9 [. P! B+ h/ ]
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Hyperloop Passenger Capsule 7 T5 X: g/ Z: v0 L# ?. E- W
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
, t7 x' E) ?, f1 X. I, A$ O2. Up to 60% of this air is bypassed: ' x* ]/ p! F; F+ y+ g: p0 s* W
a. The air travels via a narrow tube near bottom of the capsule to the tail. % b6 ~ m- l9 o/ c0 ~4 h* B) T
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
l5 j' {2 X+ H, s: ?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.
0 @! a# Z3 J9 u8 E* \) ma. This air is stored in onboard composite overwrap pressure vessels.
2 u2 r# b4 Z4 W! R1 @+ |; s" r- c! lb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. $ ^: |2 ^5 v! x5 \
4. An onboard water tank is used for cooling of the air.
; P- t8 J' x! ~( y9 A7 [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).
) i. B# W) K# O& M* ^& h ob. The steam is stored onboard until reaching the station. # K8 Q5 x' i3 C
c. Water and steam tanks are changed automatically at each stop. 2 E6 ^, E7 _' w) }2 K
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: - S( ^$ n6 H$ j7 S
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
# h5 {9 A( x* o0 p' w# d% Db. 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. 4 f/ w1 I o% x/ {
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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