TA的每日心情 | 擦汗
2019-6-16 23:34 |
|---|
签到天数: 1277 天 [LV.10]大乘
|
5 t- d4 F( R S
musk 的 electric compressor fan 在其计划书里是这么描述 （其中的一种）：; ^, `' K/ X& `. g& {% Q: }0 k
" T: V. X5 d6 v* n" PHyperloop Passenger Capsule
+ y8 }. P7 ^, U: ~1 y/ C3 p7 }& t9 i; _1. Tube air is compressed with a compression ratio of 20:1 via an axial compressor. + W% p& D' k6 Z% C/ f: d+ k4 t G
2. Up to 60% of this air is bypassed:
2 y/ s) x$ e% Y& Wa. The air travels via a narrow tube near bottom of the capsule to the tail.
/ f; Z& Z, P, Q3 N x. ?4 mb. A nozzle at the tail expands the flow generating thrust to mitigate some of the small amounts of aerodynamic and bearing drag.
: m- i2 j7 p1 \4 W% f% Q7 D' |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.
7 P) Q% V: j8 C2 ~1 N0 K+ t' ^' Ka. This air is stored in onboard composite overwrap pressure vessels. ) J3 ~9 F7 F$ |4 K
b. The stored air is eventually consumed by the air bearings to maintain distance between the capsule and tube walls. - d K2 J1 i) }# O
4. An onboard water tank is used for cooling of the air.
$ R2 w7 B( u# x3 Ta. Water is pumped at 0.30 lb/s (0.14 kg/s) through two intercoolers (639 lb or 290 kg total mass of coolant).
1 ^4 `" @ b R4 U# ^ M- k9 E/ eb. The steam is stored onboard until reaching the station.
" M' Z, ]$ c% ~* G& Ec. Water and steam tanks are changed automatically at each stop. ( Z) J& |' L: f" Z$ U
5. The compressor is powered by a 436 hp (325 kW) onboard electric motor:
/ A2 U$ J7 `8 o, B3 va. The motor has an estimated mass of 372 lb (169 kg), which includes power electronics.
0 K& e) G3 _+ U$ tb. 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& S1 O& @7 `4 d
c. Onboard batteries are changed at each stop and charged at the stations. |
|
雷达卡
发表于 2017-10-18 12:30:25
显身卡
楼主