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）：# r' M" m8 C. D9 {0 h
l% l' K: L2 F' O: ~+ v/ qHyperloop Passenger Capsule
8 j% `$ }& \8 l: R1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. 8 n3 q+ ?3 D1 }0 q" D# X4 W( {* |% j
2. Up to 60% of this air is bypassed:
+ S- C' l8 ~& E1 Ea. The air travels via a narrow tube near bottom of the capsule to the tail.
4 V4 O& t+ M7 F% W: \b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
+ t: y9 d3 }/ i) x1 c! L* a( S G3. 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.
t. G7 H# o8 m4 f& E5 S: ^a. This air is stored in onboard composite overwrap pressure vessels.
, p* M8 z3 x o+ \) ?4 V, ~b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. ' B; P4 J: a! F" u s% j
4. An onboard water tank is used for cooling of the air.
0 c; ? ?1 N: K+ q: D7 ma. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). - e9 n7 ]# t9 j! f: v+ C
b. The steam is stored onboard until reaching the station. ; f' U' T8 y- F M4 E4 Y2 C
c. Water and steam tanks are changed automatically at each stop. 9 Z) c, n. S9 J1 {! z) P% e2 k
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor: ! f+ a( v$ c3 M! u- V3 |7 J$ G! \
a. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
1 A2 G& ]; q) wb. 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. 5 S/ c% \5 F; k# R8 R9 j& B0 K1 n5 z
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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