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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2 F! [/ Y U5 o( Gmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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% A4 ?' A. u" `# w4 NHyperloop Passenger Capsule
, h* Y$ z9 H% D1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. " m& d( E7 [/ r* T% k! h1 m
2. Up to 60% of this air is bypassed: ' d7 k/ k8 r% Z+ [# |9 }
a. The air travels via a narrow tube near bottom of the capsule to the tail. 0 Z& b X1 f2 D& t8 a+ x+ |
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 6 d5 D/ m2 \- h; A6 d8 E
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. / y: v: o$ _' u' r% n
a. This air is stored in onboard composite overwrap pressure vessels.
0 _0 P3 s, O' L- y: V# `- E9 ~b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
) l% H9 v& A( G- {- z4. An onboard water tank is used for cooling of the air.
0 k( a& [1 U4 P) na. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
$ x5 Y8 V4 L4 {/ u, ^6 R" ib. The steam is stored onboard until reaching the station. 9 x& K: m0 k. v) l
c. Water and steam tanks are changed automatically at each stop.
" O: E1 W5 G8 x& V8 x5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
& I0 q" {* C& @' ta. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
: m W4 z* V- ab. 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.
* @5 G- q( O, w% R( ~0 y+ n! O. _( Pc. Onboard batteries are changed at each stop and charged at the stations. |
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发表于 2017-10-18 12:30:25
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