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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musk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：- T7 o* a5 _$ X) H' `) Y! v7 U/ {
% d) I' Y" u6 cHyperloop Passenger Capsule
# i3 f% M) s& |8 P1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
) B% Z# ^& D% C3 l. F* g1 Z, f2. Up to 60% of this air is bypassed: + Z$ j5 [! Q1 m6 ^
a. The air travels via a narrow tube near bottom of the capsule to the tail.
/ {/ J; C; K1 j, X4 a( @' Vb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
% w' w b0 L# `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.
" o6 T, X, p1 N: ma. This air is stored in onboard composite overwrap pressure vessels. : C0 x5 j5 [; h: S$ N6 n1 g
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. 2 y4 c+ _7 _3 a/ h
4. An onboard water tank is used for cooling of the air.
& _0 `2 r1 u1 F' O9 S" ]0 ^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). 3 ]( g- u4 L) Y3 y9 x- }& g/ [% O
b. The steam is stored onboard until reaching the station. 6 t! p, G6 O/ @: v( v
c. Water and steam tanks are changed automatically at each stop.
5 _* b2 l }" Y5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: 8 K# ^; g. Z% W
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. + ~9 g. t: w* D0 _" |: j4 ?- V( n
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. 7 ^- j/ f% X$ c
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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