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）：) T! }6 z, y$ o4 ^! B
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Hyperloop Passenger Capsule 6 l9 {% i) ]9 {& O
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
* \0 M$ c. |8 R2. Up to 60% of this air is bypassed: - @6 C4 H3 ^+ i! Y& Y# [: E
a. The air travels via a narrow tube near bottom of the capsule to the tail.
! D. \9 K3 r, Ob. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. ' Y9 y) P$ P4 H, Y; R; ^( U) c, ~
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.
; |4 Z0 g8 y' y; xa. This air is stored in onboard composite overwrap pressure vessels. - `7 T$ Y" z/ M! b) [) Z
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 6 f5 Q6 y# i' j1 m9 b
4. An onboard water tank is used for cooling of the air.
7 S* Y! g- S3 f: p# B7 |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 C* _1 D. s- P. g
b. The steam is stored onboard until reaching the station. # T9 G% L, m% ~" E" Q v& h
c. Water and steam tanks are changed automatically at each stop. , H$ S0 L4 h- K4 U8 \
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
2 P/ r( ]6 K7 A' [$ Fa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. , G* ]- B2 V& r( b
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. $ V( F2 N4 h) ]3 j* V5 G/ H. 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
显身卡
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