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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r; n1 g" S. [# k+ emusk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：* T( L" S0 X+ o% t, U3 q
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Hyperloop Passenger Capsule
: G8 P! n+ ^( R, c3 n1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
! y4 T+ x% k8 l* _$ p2. Up to 60% of this air is bypassed:
" e1 `1 b/ i% }2 f5 T$ }$ t8 Aa. The air travels via a narrow tube near bottom of the capsule to the tail.
& V/ Q9 ]2 h( c1 `! Tb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag. / o7 V) Q5 R8 t
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. 8 N7 ]$ a3 o9 L4 Q5 H1 \5 z3 S
a. This air is stored in onboard composite overwrap pressure vessels.
. p7 q# X: t7 t' U* l3 J Ob. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. ! K: v- |2 K4 r* q/ E
4. An onboard water tank is used for cooling of the air.
% r/ l" f: l/ [# V1 Xa. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
r/ i4 K: ], S$ T1 G' A- v+ K. |) Lb. The steam is stored onboard until reaching the station. $ d( d% g* ~2 l
c. Water and steam tanks are changed automatically at each stop.
% k4 j8 C1 m) ]: P2 J3 K5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
- x. ]$ c0 v5 i$ C6 ua. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
8 L* J$ Q9 j# W1 o+ T# Y" e- hb. 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. ! f; Q) I, N4 d9 C
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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