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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: P' J/ Z8 ?$ ~9 q, J' Pmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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Hyperloop Passenger Capsule 1 r$ h% u0 t9 g- o3 Q8 I0 Z
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. 6 |& K2 p" s4 ^
2. Up to 60% of this air is bypassed: " t, B, X2 j! n" x
a. The air travels via a narrow tube near bottom of the capsule to the tail.
; l3 z& }# @' T4 g% R+ s4 T8 @b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
) y0 X3 O9 a4 o) h+ F3. 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. 5 L- Y: ^ z' x8 z7 h
a. This air is stored in onboard composite overwrap pressure vessels.
, ^6 M+ k3 N# ^, s4 R3 W- Cb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
/ C2 Y6 u' d# D2 y4 ~4. An onboard water tank is used for cooling of the air. & ^. X+ ~% x( p/ V
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). 8 p" W- j# r) y! j
b. The steam is stored onboard until reaching the station. ( v) U# e+ p2 s! z3 {. ?2 F
c. Water and steam tanks are changed automatically at each stop. ; f4 R* P7 @. F4 K9 M9 x1 P) y/ |
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
: y9 Y' _# V- W- [8 U) Y7 `) I) ta. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
0 c) o! O9 H, ]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.
6 p0 B' c& f: s. G# I5 }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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