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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8 N7 I# G$ P1 W2 i# kmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：
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: f1 j! [8 ^4 p! M. RHyperloop Passenger Capsule : I5 K+ z. e. F0 q G7 a# b
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
! v& e0 L, ^, W2 r9 w; M! {2. Up to 60% of this air is bypassed: + `0 g! g5 {* _# j, j+ g/ |: h
a. The air travels via a narrow tube near bottom of the capsule to the tail. 8 [* E) R. v9 l, Y8 `
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
8 W/ g y+ {5 I; `! ~( r! 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.
- K) K9 T1 Y( }; M/ la. This air is stored in onboard composite overwrap pressure vessels. ! R/ Z9 O; @! M p9 a" F0 [
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
5 J' g9 |" }0 [- T4 F. `4. An onboard water tank is used for cooling of the air.
6 G! D8 Z9 b, S- Ea. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
0 | B3 N! h& u5 c* F% J: Ab. The steam is stored onboard until reaching the station.
+ m* G4 x' U& ]8 O) ]c. Water and steam tanks are changed automatically at each stop.
5 j3 d# w: T$ {* q, f% G2 p* O5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
/ ~2 v7 ]; Q7 Y: T& @a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. * m: l b7 G1 I3 g7 m0 l5 u* v2 ~
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.
A1 c6 Z% {8 L" u% c9 }/ M1 U- vc. 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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