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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0 J: M) X: L/ t+ b8 m& ~7 Tmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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+ f( u7 q$ ]- Y7 }2 \Hyperloop Passenger Capsule
/ f. x+ Y' ?. C- {' `. t: N2 ^1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
9 ^2 |; @4 S3 G$ b. _2. Up to 60% of this air is bypassed:
: M* {! d* Y+ a6 [a. The air travels via a narrow tube near bottom of the capsule to the tail. ' ^5 X" q: C/ N8 ?# M& z, S
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. : d5 t' U, b0 P% y1 q j4 o+ y- }
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.
& d6 k& r6 c0 o+ {a. This air is stored in onboard composite overwrap pressure vessels. ; J7 I" t. \% d- u$ j5 [7 ]. v
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
9 B3 R/ ~' v- p( ~4. An onboard water tank is used for cooling of the air.
4 {; |' n+ `4 y( l$ T% L5 @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 A0 a: w9 J6 B) Ub. The steam is stored onboard until reaching the station.
/ [6 R" Q! j& C! X h* q0 J* i( Qc. Water and steam tanks are changed automatically at each stop.
5 m5 ~! Y4 @3 `: F9 | E1 `" A5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
2 \7 [& O/ b$ d2 z; la. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
) i$ I [3 n$ g- R& Ib. 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.
/ k: v) @6 G5 b4 y2 lc. Onboard batteries are changed at each stop and charged at the stations. |
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发表于 2017-10-18 12:30:25
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