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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, D4 N% L; P, j: U! P! ?* imusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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& I: ~1 T$ d5 F2 K/ ~$ k- AHyperloop Passenger Capsule 5 f3 Y+ ~0 u' y' e v
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
* `7 D! C) ?% j6 {) k1 l* t2. Up to 60% of this air is bypassed: 0 @( Q) L. e- h# @) k( U
a. The air travels via a narrow tube near bottom of the capsule to the tail.
2 g3 Y+ b/ a, l: u/ w# Yb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
7 i& E M3 M. U5 j3. 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. - B7 C9 h9 j# X0 c" O% y
a. This air is stored in onboard composite overwrap pressure vessels.
. @) p2 }1 Q- {+ n0 fb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
& `" P. I6 ]4 z$ H% j3 H4 e4. An onboard water tank is used for cooling of the air. 6 `: P6 k- ~& S5 U7 \3 ~/ H" g3 f
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).
: [. N5 U A, S1 h0 pb. The steam is stored onboard until reaching the station. % ?9 `$ F: @1 L) d
c. Water and steam tanks are changed automatically at each stop. : r& l. Q' ^8 J2 X
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: % z9 s5 Q% i$ X5 R2 {9 {3 O$ ^) V
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
8 u. ?8 ?3 a7 e, n- ob. 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. 9 Q6 M L) F; g- c8 Y3 N, G
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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