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）：
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8 Y$ p+ b% W' P. KHyperloop Passenger Capsule ( e) k# T) p9 W0 C j( G7 l" r% @
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
8 v4 M' T* j T# H% W( \2. Up to 60% of this air is bypassed:
! M* P. F7 g% M% ^( [( n+ ta. The air travels via a narrow tube near bottom of the capsule to the tail. + ]: l) w) {: j) T0 p2 `$ J, y" P
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
( F0 D4 u4 {& T& }- e5 S' X3. 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.
3 N) ?1 B' U: ua. This air is stored in onboard composite overwrap pressure vessels. . h/ P c7 Z( n0 F% B2 C" a
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. # D4 s1 {/ H f8 m
4. An onboard water tank is used for cooling of the air.
3 E: q1 x* X9 F7 u& a( H: }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).
" S1 w. F& Y6 Z& X1 q( t, w7 w/ ob. The steam is stored onboard until reaching the station. / X/ X" S1 n3 t# B/ @* M+ [5 y
c. Water and steam tanks are changed automatically at each stop.
+ J+ {9 H. T: @& z! ]* e& F5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
l. f+ g# E$ U( b# c& Za. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. 1 u, h" p# K3 e, A* Q4 p
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. ' x8 q* |9 ?7 Y, Z3 n
c. 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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