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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/ M7 g+ o `' m# M9 pmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：% ?, Q* v" t# F
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Hyperloop Passenger Capsule
$ V# t* ]5 M3 a- [2 x8 [1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. ' B4 h! k Y+ o+ @
2. Up to 60% of this air is bypassed: 8 j; }+ E8 w; {0 Z1 n2 m& R
a. The air travels via a narrow tube near bottom of the capsule to the tail.
. F6 ~, ]' F, c" @! [$ Ib. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
- w$ }6 @: d3 B2 X+ B; \ [" A/ z3. 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. * ]; P- H" Z: H* x) i& A- e. @
a. This air is stored in onboard composite overwrap pressure vessels. 8 {9 V/ y: x" W& z6 y0 `$ `
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. " I! ]& S3 r2 _
4. An onboard water tank is used for cooling of the air.
( o }2 Q/ B$ E# Ca. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). & i, E8 \8 ~5 ?0 ]& [* s
b. The steam is stored onboard until reaching the station. P* ?" c" C$ Y. P9 t
c. Water and steam tanks are changed automatically at each stop. U2 |8 s9 d5 U% e! e) I, ?
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ) Y2 H$ n& L. [4 B C
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 2 l9 r! K. D1 h4 a
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.
, I: [' ]" B; r& s" Uc. 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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