TA的每日心情 | 擦汗
2019-6-16 23:34 |
|---|
签到天数: 1277 天 [LV.10]大乘
|
+ `6 J% g7 k/ d( \( u, y( J
musk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：, h8 j) V0 |% }9 @+ U
/ D9 H9 ]1 D& ~/ d3 w/ h9 H5 m
Hyperloop Passenger Capsule
# |* O5 u6 i2 D9 I' z: o' A1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. . K- |& w, l0 Q
2. Up to 60% of this air is bypassed: % M3 Y$ o9 r/ `: Y; Q) w Z$ _
a. The air travels via a narrow tube near bottom of the capsule to the tail.
9 }6 ]8 G" K2 i. Z c& Lb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. 1 u* l9 I* F2 i, y) }, H( K \
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; S8 j& ~5 }2 Ha. This air is stored in onboard composite overwrap pressure vessels. ' Y7 R' O6 t* S$ M7 y) J$ r
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
: P- f$ H( W' A |9 {4. An onboard water tank is used for cooling of the air.
# ~) i+ n9 K4 n$ G0 \+ p" C. {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). ! u- Z7 H7 j# U0 K. X) f0 p+ a
b. The steam is stored onboard until reaching the station. 2 J) I0 {5 M+ _
c. Water and steam tanks are changed automatically at each stop. 2 }/ W/ `* \9 `4 x9 e
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: 9 i! {7 |2 ^# y3 o! ^
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
; R% x9 M0 D p) G6 Gb. 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.
! F9 G6 e [; @8 kc. Onboard batteries are changed at each stop and charged at the stations. |
|
雷达卡
发表于 2017-10-18 12:30:25
显身卡
7 w4 W9 Z% P, r( Y
楼主