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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) e, F+ x, z& }' g) @8 gmusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：$ V( b9 ?/ F( ?- d" x
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Hyperloop Passenger Capsule 0 {/ m* L3 Z. f# l" ~
1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
! | d- f9 H, x+ i8 \2. Up to 60% of this air is bypassed:
5 `3 o" O( v/ f% Q/ N; [! Y0 t5 La. The air travels via a narrow tube near bottom of the capsule to the tail. * x: _) q+ [* ]% W
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. ) L3 X+ g) h9 Z2 _$ n/ w8 }
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. 5 z3 G& l4 u' `$ m
a. This air is stored in onboard composite overwrap pressure vessels. 6 X1 n, ?2 h8 d' x. ]6 D9 u3 p: w
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. # P- T) m5 E& D1 q
4. An onboard water tank is used for cooling of the air. 3 d0 O. N4 q( m/ ~
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). 2 V. a! g0 G" `- d4 z0 N
b. The steam is stored onboard until reaching the station.
0 x# @1 J( _5 [+ Hc. Water and steam tanks are changed automatically at each stop.
# K, J A1 L+ Y+ J, i& x, r5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
8 Y z+ w! V) A- O; {) ba. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
* u1 |2 ]* D+ {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.
' u- ?( g. l; h9 |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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