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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k- L$ _& p2 l4 U9 v# ^- Nmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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Hyperloop Passenger Capsule g; ^' m6 X5 u9 K- H
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
* F5 S, M4 k7 I! p# M* b; U5 H* g. ^2. Up to 60% of this air is bypassed:
4 ]2 X3 n- @$ T7 |. L- N: ga. The air travels via a narrow tube near bottom of the capsule to the tail. 5 H$ J; ?* k8 s7 g H0 A) C- t$ B! z
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
$ R' J9 D- ?1 T/ U! E3. 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.
. a/ z! ~$ b' Ja. This air is stored in onboard composite overwrap pressure vessels. 7 d& [ y2 [3 c" q y' U9 b5 B( `/ ]" q
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. & j/ Q4 ]. p5 g3 g" K
4. An onboard water tank is used for cooling of the air. 7 Y: m8 f* x) H' f
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). 6 v* }/ v* _) a8 E9 |6 u! Q
b. The steam is stored onboard until reaching the station. ! \ i6 S( b* J/ G7 n9 u/ y+ q/ C
c. Water and steam tanks are changed automatically at each stop.
. v. D5 O, X% _9 V, x5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: 0 h+ ]# H1 ?8 i* N: w
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 1 D: T k ^; V! Q" g
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. . N F, c( y5 e" m# |/ [+ j
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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