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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' j0 j' [: h: l% w {$ {! Amusk 的 electric compressor fan 在其计划书里是这么描述 (其中的一种):* a; u: c, x2 c
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Hyperloop Passenger Capsule
. r) M1 ^* Y: m& d( c1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
6 v' X- i3 y. ^4 A" ]# q( _2. Up to 60% of this air is bypassed:
3 d$ e U* l+ j1 n1 L4 @. V Wa. The air travels via a narrow tube near bottom of the capsule to the tail. / v* Z) w9 M5 a% M
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. % X' d1 x4 H* ~3 K5 d5 U
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. + E# D" Q1 ]$ f
a. This air is stored in onboard composite overwrap pressure vessels. 6 Q3 i2 X- w( K v: |$ Q* W4 k
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 0 k) r' \- p3 \" I
4. An onboard water tank is used for cooling of the air.
6 N3 c( t+ T: @# u- pa. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). % ~% _1 ^! M: p( y* t: p
b. The steam is stored onboard until reaching the station. # z: p) J6 ?. @9 W2 t
c. Water and steam tanks are changed automatically at each stop.
9 t7 s1 B# D K8 x: Q( n+ K5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: # f) s6 L& A% x6 Q& |
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
9 P, Q" J2 p# S9 ^' [7 k/ ^; j3 xb. 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. 0 J k+ K# k# h, _% |% t& G; [
c. Onboard batteries are changed at each stop and charged at the stations. |
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