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）：
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Hyperloop Passenger Capsule
/ ~7 r6 G4 ?6 h* K6 p1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor.
" Y* {) D5 E* n& C2. Up to 60% of this air is bypassed:
. }2 ?9 f# O8 Q1 R$ D0 \! Ja. The air travels via a narrow tube near bottom of the capsule to the tail. 0 }! l b; {9 h4 ~' a' `$ z; |
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
! t& j: Y# `, b6 E0 \ v' d) d9 U3. 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/ D7 S# [2 X8 c
a. This air is stored in onboard composite overwrap pressure vessels. ; p" x; F; b! J- O O
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls.
( g; ^5 {: s, @1 ^6 u0 s4. An onboard water tank is used for cooling of the air. 4 m& J ]( E) V$ V" ^# Y/ u
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).
) }& ^0 M7 a' E* N& d) Y$ Gb. The steam is stored onboard until reaching the station. # K9 c' K- ~: k. O
c. Water and steam tanks are changed automatically at each stop. 6 Z8 T" B' Y* n+ Z% M; P3 A! b3 u
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
+ k8 C* K# G/ {4 Q. z+ Z& j, i% Qa. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. W/ a9 B! ^$ z. C' A
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.
1 S" j" e- H1 s8 w& ec. 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
显身卡
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