TA的每日心情 | 擦汗 2019-6-16 23:34 |
|---|
签到天数: 1277 天 [LV.10]大乘
|
! K- O5 x' `- m2 D' M, Nmusk 的 electric compressor fan 在其计划书里是这么描述 (其中的一种):. H1 `8 p2 C' a3 V* G3 m' P X5 ~
0 k$ M" \5 F4 w) q. u
Hyperloop Passenger Capsule
, e/ ?: F/ P' N) H ~1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. " g9 {* \, m0 M/ Y: T- h
2. Up to 60% of this air is bypassed:
2 I0 c- U$ ]5 p# a) Y& S6 Xa. The air travels via a narrow tube near bottom of the capsule to the tail. . d# O" x! C8 k
b. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
1 {0 p' ~: I% b2 p4 w; R3. 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.
/ ?/ @% x' \" Q5 ?4 }a. This air is stored in onboard composite overwrap pressure vessels. ) ~+ g6 L+ r. X5 w
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. , n4 N9 T; [! `- z. a
4. An onboard water tank is used for cooling of the air.
+ I% X" | g$ oa. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant). + \% L/ w1 G) Q3 y$ v: C% Y
b. The steam is stored onboard until reaching the station. / D/ A. H6 A @8 }7 H
c. Water and steam tanks are changed automatically at each stop. : A0 P3 k+ ?0 c- z" K. b7 j7 d. e
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
) H8 u9 R# s; ?$ L( I( v! za. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics. : @+ R: k+ O3 P& 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. . s$ D9 w4 v& s( Q3 x
c. Onboard batteries are changed at each stop and charged at the stations. |
|