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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5 }2 E6 c% m7 ^* R& Xmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：9 D- g& G2 S" |
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Hyperloop Passenger Capsule
! j) Y' @# {8 S }& C$ S1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. $ f1 @, ]: `! e' X
2. Up to 60% of this air is bypassed:
/ n# Z2 u, p/ Z0 U y# W# Q/ ra. The air travels via a narrow tube near bottom of the capsule to the tail. " r1 D8 X: t! H* {
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. . S0 E" l' c% p3 ~
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.
( \9 w& o6 o! q+ A- z! D. }! d4 sa. This air is stored in onboard composite overwrap pressure vessels. . G1 c' F+ Y. V0 p6 D0 h1 N7 A
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. ' i7 U3 C( J# ^; E8 a/ B) t
4. An onboard water tank is used for cooling of the air. ' }9 h& y" W" T1 N
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). 7 n; | _" H8 r' i0 k4 V6 a
b. The steam is stored onboard until reaching the station.
: ]; d( ~4 \, c A( Jc. Water and steam tanks are changed automatically at each stop.
7 {# W% `7 J+ R( E" K4 }5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
1 U; Y0 D: U9 h1 y( ya. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. & |) E3 w' v% f& p* F7 v
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. & r- n+ n, O3 A) l* I$ {/ S: w
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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