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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Hyperloop Passenger Capsule
/ |, A; W9 Y, ~+ K: r; n1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. " ~3 t: G: r; O( x4 O# {
2. Up to 60% of this air is bypassed:
1 r7 D! ?! Z \* K+ Za. The air travels via a narrow tube near bottom of the capsule to the tail.
( t# C+ V( g: V5 F Q1 D. @b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
! t+ M ~7 O! f3 C/ ^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. M, ^# U- F) V# }* P
a. This air is stored in onboard composite overwrap pressure vessels.
) }/ j, X0 v5 }; Lb. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
5 @; q- ?- W/ c& M+ `$ q4. An onboard water tank is used for cooling of the air.
3 J2 \( C0 R) p, o- q4 Oa. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
{. D% h! m( t4 U6 J, U; m$ Fb. The steam is stored onboard until reaching the station. 3 W$ Z4 C& ]9 A: J# N
c. Water and steam tanks are changed automatically at each stop. ! t8 b# D9 Y. H$ Q6 ^( H9 d
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
! a9 E( n8 }6 I5 v! j! Ya. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
4 U: U ^& a* |, B4 { Cb. 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.
. _& ?3 W6 Q; M6 b4 x5 Fc. 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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