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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' t) T) `, L( O+ Q, x6 V5 `3 rmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：# W9 s) y% ]2 s8 a, C& E; m
# ]- ^ b7 V" W/ iHyperloop Passenger Capsule
, E0 |- o' ^/ N+ t3 V2 W& n3 P# F1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
6 H2 t8 ~, {0 z2 i2. Up to 60% of this air is bypassed:
8 V$ D) H9 x& oa. The air travels via a narrow tube near bottom of the capsule to the tail.
5 ?' F5 d! n3 Y+ Y3 C' Sb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. / R# ^7 i7 z" d1 {2 f) s
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 K) l0 W) x& c; I
a. This air is stored in onboard composite overwrap pressure vessels.
1 w9 G2 u+ ^1 M* H+ X' \b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 5 B7 y0 ]: v2 }9 c
4. An onboard water tank is used for cooling of the air. 7 j9 K6 C" v R6 O/ D! y, ~! `( s
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). ) w [8 ^4 `* R# U. h% c, h
b. The steam is stored onboard until reaching the station. 7 v: A$ _. T8 p) y, }0 G# i
c. Water and steam tanks are changed automatically at each stop. / d- }* c) z% g# _
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: , a9 D& W4 o' X( ]% H8 z
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
! z% {1 v5 k+ b5 s* i Db. 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. & @/ b9 d2 U- j7 h/ r
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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