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Pneumatic Capsule Pipeline

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Terrestrial Mineral Transportation Technologies Truck Train Pneumatic Conveying ... Maglev (Magnetic Levitation) 8) Lunar train 7) Propulsion system for Maglev 9) ... – PowerPoint PPT presentation

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Title: Pneumatic Capsule Pipeline


1
Pneumatic Capsule Pipeline Maglevfor the
Moon?
  • By
  • W. B. LEE
  • President / The OD Co., Ltd.

Dasan Conference 2010, Jeju October 27, 2010
2
Table of Contents
1. Terrestrial Mineral Transportation Technologies
2. The Lunar Environment
3. Transportation System for Lunar Regolith
3
1. Terrestrial Mineral Transportation Technologies
Truck
Train
Capsule Pipeline
Pneumatic Conveying
Conveyor
4
2. The Lunar Environment
Property Measurement Comment
Air Vacuum No atmosphere
Temperature -233? to 123? Mean 107?/day -153?/night
Magnetic field 0 Earth 24-56 A/m
Humidity No Yes
Gravity 1/6 earth g9.8?
Atmospheric pressure 10¹4 Torr Earth 760mmHg 1Torr1mmHg
5
? Minerals in Lunar Regolith
Mineral Percent ()
SiO2 47.3
TiO2 1.6
Al2O3 17.8
Fe2O3 -
FeO 10.5
MnO 0.1
CaO 11.4
Na2O 0.7
K2O 0.6
P2O5 -
Total 100
6
3. Transportation System for Lunar Regolith
1) Design factors
2) Transportation by vehicles
3) Pneumatic transportation
4) PCP (Pneumatic Capsule Pipeline)
5) Electromagnetic drives
6) Maglev (Magnetic Levitation)
7) Propulsion system for Maglev
8) Lunar train
9) Concept
7
1) Design Factors
?For gaining high value output (He3, etc.) from
Lunar regolith Mining -gt Transportation -gt
Extraction
Economical Viabibilty ? High transportation cost ? Construction cost ? Material Cost ? life-cycle cost
Construction ? Construction installation must be easy
Maintenance ? Simple preventive maintenance ? Easy repairs
Operation ? Automatic ? Switch to remote control
Weight ? Use of ISRU (In-Site Resource Utilization) ? On site fabrication with ISRU
Energy ?Overall low energy need ? Reuse, recycle
8
2) Transportation by Vehicles
? Issues
1. The surface is very soft. 2. There are a lot
of craters on the moons surface. 3. Dust
? Result Therefore it is difficult to move by
truck wheel on the surface with
high speed.
9
3) Pneumatic Transportation
? Applications
Mail, hospital, bank (money)
? Issues to consider for mineral blowing
1. Blower speed efficiency 2. Wear tear due to
friction (velocity of particles 15-20m/sec
(54-72Km/hr) 3. Pipe sizing 4. Cyclone
10
4) PCP (Pneumatic Capsule Pipeline)
? Advantages of pipeline
1) No pollution (noise, dust, spillage) 2) No
traffic jam
? Disadvantages (Used in Japan)
1) Low linefill rate (3) Reasons of low
linefill rate. ? Blowers block the
passage of the capsules. ? In-line loading
unloading. 2) Low speed (9m/sec)
gt Traditional PCP is not economical.
11
5) Electromagnetic Drives
? Advantages
1. The linefill of CP systems with
electromagnetic drive can be 15, fivefold
increase in comparison to PCP 2. Loading
unloading of capsules must be done outside the
pipeline. 3. Velocity of capsules is about
15m/sec, higher than PCP (9m/sec).
? Result CP is more economical system than PCP
Electromagnetic drives LIM or LSM
12
6) Maglev (Magnetic Levitation)
Maglev is using LIM or LSM system for propulsion.
Electric traditional motor
Linear motor
Attraction
Repulsion
13
? Maglev Overall Strengths
Magnetic
Maintenance Low cost gtThere are no components that would wear out. There is no friction.
Noise Low noise gtThere are no wheels running along there is no wheel noise. But noise due to air disturbance still occurs.
Speed High speed 500km/hr (LSM)
14
7) Propulsion Systems for Maglev
LIM (Linear Induction Motor) LSM (Linear Synchronous Motor)
Position of stator rotor Stator - - train Rotor - - Guideway (rail) Stator - - Guideway (rail) Rotor - - train
Construction cost Low High
Control equipment Simple (easy) Complex (difficult)
Speed Low (100km/h) High (500km/hr)
LIM
LSM
Stator
Rotor
Rotor
Stator
15
8) Lunar Train
Advantages Earth Moon
Environment For protection of environmental pollution - - noise, spillage of material, dust Not issue (In case of transportation)
Air drag To avoid air drag No air -gt No air drag.
Traffic Without traffic jam No traffic
Speed 54-72km/hr by LSM in pipeline 100km/hr by LIM 500km/hr by LSM
Pipe Yes No
16
9) Concept
1) No pipeline 2) LIM system is reasonable for
transportation in the moon. - 100km/hr is
speed is reasonable - Construction cost is
cheaper than LSM. 3) Maglev transportation
system with monorail
17
Thank you!
Won-Bae Lee President / The OD Co., Ltd. E-mail
wb21_at_theod.co.kr Phone 82-2-848-5570
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