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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1 s8 x/ _: [+ e; b& cmusk 的 electric compressor fan 在其计划书里是这么描述 (其中的一种):
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1 f* a: }5 w3 @( |( THyperloop Passenger Capsule ) ^6 b) P7 s! H
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
( b& p9 U1 \' Z% f A# ?! c2. Up to 60% of this air is bypassed: % P% T, C+ K' |! f( e, ~! A
a. The air travels via a narrow tube near bottom of the capsule to the tail.
* o) E# g8 } [b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. * B3 }/ A0 ]6 @! f D
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. ( T% I; h5 _; K# m
a. This air is stored in onboard composite overwrap pressure vessels. 5 E. r& Y4 z2 F1 f/ I0 W4 g
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. - v" G& h2 i* ]2 b5 P: m4 y
4. An onboard water tank is used for cooling of the air.
4 L& @$ ?- t2 r+ W, ^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).
0 O+ ~3 {: J* t( y Qb. The steam is stored onboard until reaching the station.
: D' \+ O3 o) J4 b9 d( r/ I6 u! tc. Water and steam tanks are changed automatically at each stop. $ I8 U' X; n# {0 [
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
! T. L! o( e% \3 Aa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. ; }8 {, M' v( M5 f/ {
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. " h* i) B* o: Z: I) S
c. Onboard batteries are changed at each stop and charged at the stations. |
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