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）：: @7 z; H2 E }7 `! G0 q
4 g6 z5 h9 U$ e9 c2 M- X" {Hyperloop Passenger Capsule # j# _( i3 @8 R: K
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
% E1 n( G5 S) a+ {2 R2. Up to 60% of this air is bypassed:
+ X: a' T5 p# S' U4 s7 P! Ba. The air travels via a narrow tube near bottom of the capsule to the tail.
" |- U$ S; Z' r, q8 }: vb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
& _1 H3 h3 G) H& h8 c! V" y3. 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.
' F; Z' r+ C3 _, r/ H& ^& x! @: \% Z7 Z/ ga. This air is stored in onboard composite overwrap pressure vessels. ' L/ v0 L' V0 o* ~
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. , ?2 d* O: O6 E' B
4. An onboard water tank is used for cooling of the air. 8 j: Z& D% K/ h, B; K; G; @, y9 G5 P
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).
! \) y1 z2 A9 _" t# nb. The steam is stored onboard until reaching the station.
! ^- E$ l6 `. O3 l4 W! |) Z' A2 ?c. Water and steam tanks are changed automatically at each stop. 5 ^' o6 ?, m1 _3 M
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: * [ r T! q: _+ o
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. ) E( b4 F: w/ v
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.
2 O% c: ^: A6 c5 v6 z0 c0 Xc. 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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