supercities and supergrids: a vision of long-term sustainable and climate-compatible energy
DESCRIPTION
SuperCities and SuperGrids: A Vision of Long-term Sustainable and Climate-Compatible Energy. Paul M. Grant IBM Research Staff Member Emeritus EPRI Science Fellow ( retired ) Principal, W2AGZ Technologies [email protected] www.w2agz.com IBM Almaden Research Center 21 January 2005. - PowerPoint PPT PresentationTRANSCRIPT
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SuperCities and SuperGrids:
A Vision of Long-term Sustainable and
Climate-Compatible Energy
Paul M. Grant IBM Research Staff Member Emeritus
EPRI Science Fellow (retired)Principal, W2AGZ Technologies
IBM Almaden Research Center21 January 2005
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1953Project Sage – IBM/MIT
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35 Years Later…March 3, 1987: “123” Structure at ARC
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Acknowledgements
• Jesse Ausubel, PHE-RU
• Kurt Yeager, EPRI
• Arnulf Grubler, Yale
• Jim Daley, DOE
• Shirabe Akita, CRIEPI
• Zheng-He Han, Tsinghua U.
• Chauncey Starr, EPRI
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Chauncey Starr
"If scientists and engineers think they can build something, they will invariably do it…
without much thought to the consequences!"
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Cycles of Demography and Per Capita Energy Intensity
Birth of Modern Democracy and
Capitalism
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Earth at Night - 2000
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China – Installed Generation Capacity
400 GW
USA: ~ 1050 GW
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China “Factoid”
• Current Population: 1.3 Billion Souls
• All want to live like Americans
• Chinese Family Priorities:– (1) TV, (2) Washer, (3) Fridge…– Next an Air Conditioner (200 USD, 1 kW)
• Assume an average family size of three, then…
An extra 500 GW of generation capacity must be added just to keep them cool!
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World Population: 1850 – 2100Urban/Rural
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Future Urban Population Growth
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HDI vs Electricity Consumption
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Earth at Night - 2100
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US Energy Consumption (2001)
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China-USA Electricity Statistics (2001)Source (CIA & EIA)
Production Source (%) China USA (NA)
Fossil 80.2 71.4 (15% NG)
Hydro 18.5 5.6
Other 0.1 2.3
Nuclear 1.2 20.0
Annual Producton (TkWh) 1.42 3.72
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US Oil Imports (2003)
US 39%Canada 13%Saudi Arabia 10%Mexico 10%Venezuela 9%Nigeria 4%Iraq 4%UK 3%Norway 3%Angola 2%Algeria 2%Other 2%
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US Natural Gas Imports (BCF, 2003)
22,000
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China-USA Recoverable Coal Reserves (2002)
Million Short Tons Years Left*
China 126,215 273
USA (NA) 280,464 309
• One Short Ton = 6150 kWh
Efficiency Conversion – 40%
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The 21st Century Energy ChallengeDesign a communal energy economy to meet the needs of a densely populated industrialized world that reaches all corners of Planet Earth.
Accomplish this within the highest levels of environmental, esthetic, safe, reliable, efficient and secure engineering practice possible.
…without requiring any new scientific discoveries or breakthroughs!
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“Boundary Conditions”
• Sustainable and efficient use of energy resources
• Carbon-free
• Non eco-invasive
• Uses available technology
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What Does “Non-Eco-Invasive” Mean?
• Least use of land area, ruling out– Wind farms– Solar (except for roofs)– Biomass cultivation
• Least by-product disposal volume, ruling out– CO2 sequestration– Once-through fuel cycles
• Minimal visual pollution, ruling out– Wind farms, either onshore or offshore– Overhead transmission lines
• Underground as much as possible– Nuclear plants– The SuperCable
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A Symbiosis of
Nuclear/Hydrogen/Superconductivity
to Supply Carbon-free, Non-Intrusive Green Energy for all Inhabitants of
Planet Earth
The Solution
Teratechnology for an Exajoule Worldr
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P.M. Grant, The Industrial Physicist, Feb/March Issue, 2002
SupermarketSchool Home
Family Car
DNA-to-order.com
Nuclearplant
H2
H2
HTSC/MgB2
SuperCity
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The Hydrogen Economy
• You have to make it, just like electricity• Electricity can make H2, and H2 can make electricity
(2H2O 2H2 + O2)• You have to make a lot of it• You can make it cold, - 419 F (21 K)
P.M. Grant, “Hydrogen lifts off…with a heavy load,” Nature 424, 129 (2003)
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Hydrogen for US Surface Transportation
Hydrogen per Day
Tonnes Shuttles Hindenburgs
230,000 2,225 12,787
Water per Day
Tonnes Meters of Lake Tahoe
2,055,383 0.93
The "25% 80-80-80 400 GW" Scenariohttp://www.w2agz.com
Heavy Water ?
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Hydrogen for US Surface Transportation
The "25% 80-80-80 400 GW" Scenariohttp://www.w2agz.com
Renewable Land Area Requirements
Technology Area (km2) Equivalent
Wind 130,000 New York State
Solar 20,000 50% Denmark
Death Valley + Mojave
Biomass 271,915 3% USA
State of Nevada
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Diablo Canyon
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Diablo Canyon
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California Coast Power
Diablo Canyon
2200 MWPower Plant
Wind FarmEquivalent
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Kashiwazaki Kariwa: 8000 MW
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Kashiwazaki Kariwa: 8000 MW
1 mile
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Kashiwazaki Kariwa: 8000 MW
1 mile
Unit 7: 1320 MW ABWR
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Particle/Pebble Nuclear Fuel
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High Temperature Gas Cooled Reactor
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Reprocessing “Spent” Fuel
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Reprocessing “Spent” Fuel
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JNFL Rokkasho Reprocessing Plant
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JNFL Rokkasho Reprocessing Plant
• $20 B, 5 Year Project• 800 mt U/yr• 1 mt U -> 50 kg HLW
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Co-Production of Hydrogen and Electricity
Source: INEL & General Atomics
ReactorVessel
O2
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Source: General Atomics
Nuclear “Hydricity” Production Farm
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1967: SC Cable Proposed!
100 GW dc, 1000 km !
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1986: A Big Surprise!
Bednorz and MuellerIBM Zuerich, 1986
1980 2000
V3Si
1900 1920 1940 1960 0
50
100
150
200
Tem
per
atu
re,
TC
(K)
Year
Low-TCHg
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1986: A Big Surprise!
Bednorz and MuellerIBM Zuerich, 1986
1980 2000
Hig
h-T
C
164 K
La-214
Hg-1223
V3Si
1900 1920 1940 1960 0
50
100
150
200
Tem
per
atu
re,
TC
(K)
Year
Low-TCHg
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1986: A Big Surprise!
Bednorz and MuellerIBM Zuerich, 1986
1980 2000
Hig
h-T
C
164 K
La-214
Hg-1223
V3Si
1900 1920 1940 1960 0
50
100
150
200
Tem
per
atu
re,
TC
(K)
Year
Low-TCHg
MgB2
40 K2001
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1987: “The Prize!”
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Oxide Powder Mechanically Alloyed Precursor
1. PowderPreparation
HTSC Wire Can Be Made!
A. Extrusion
B. Wire DrawC. RollingDeformation
& Processing3.
Oxidation -Heat Treat
4.
Billet Packing& Sealing
2.
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Oxide Powder Mechanically Alloyed Precursor
1. PowderPreparation
HTSC Wire Can Be Made!
A. Extrusion
B. Wire DrawC. RollingDeformation
& Processing3.
Oxidation -Heat Treat
4.
Billet Packing& Sealing
2.
But it’s 70% silver!
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“Long Island”
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“Long Island”
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“Hydricity” SuperCables
+v I-v
I
H2 H2
Circuit #1 +v I-v
I
H2 H2
Circuit #2
Multiple circuitscan be laid in single trench
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HV Insulation
“Super-I nsulation”
Flowing LiquidHydrogen
Superconductor“Conductor”
DO
DH
Al
Al “core” of diameter DCwound with
HTSC tape ts
thick
HV Insulation
“Super-I nsulation”
Flowing LiquidHydrogen
Superconductor“Conductor”
DO
DH
Al
Al “core” of diameter DCwound with
HTSC tape ts
thick
SuperCable
Al
Al “core” of diameter DCwound with
HTSC tape ts
thickAl
Al “core” of diameter DCwound with
HTSC tape ts
thickAl
Al “core” of diameter DCwound with
HTSC tape ts
thickAl
Al “core” of diameter DCwound with
HTSC tape ts
thick
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Power Flows
PSC = 2|V|JASC, where PSC = Electric power flowV = Voltage to neutral (ground)J = Supercurrent densityASC = Cross-sectional area of superconducting annulus
Electricity
PH2 = 2(QρvA)H2, where PH2 = Chemical power flow Q = Gibbs H2 oxidation energy (2.46 eV per mol H2)ρ = H2 Density v = H2 Flow Rate A = Cross-sectional area of H2 cryotube
Hydrogen
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Power Flows: 5 GWe/10 GWth
0.383.025,000100,0005,000
tS (cm)DC (cm)HTS J C(A/cm2)
Current (A)
Power (MWe)
Electrical Power Transmission (+/ - 25 kV)
0.383.025,000100,0005,000
tS (cm)DC (cm)HTS J C(A/cm2)
Current (A)
Power (MWe)
Electrical Power Transmission (+/ - 25 kV)
45.34.76405,000
DH- actual (cm)
H2 Flow (m/s)
DH- eff ective (cm)
Power (MWth)
Chemical Power Transmission (H2 at 20 K, per "pole")
45.34.76405,000
DH- actual (cm)
H2 Flow (m/s)
DH- eff ective (cm)
Power (MWth)
Chemical Power Transmission (H2 at 20 K, per "pole")
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Radiation LossesWR = 0.5εσ (T4
amb – T4
SC), where WR = Power radiated in as watts/unit areaσ = 5.67×10-12 W/cm2K4
Tamb = 300 KTSC = 20 Kε = 0.05 per inner and outer tube surfaceDH = 45.3 cm WR = 16.3 W/m
Superinsulation: WRf = WR/(n-1), where
n = number of layers = 10
Net Heat In-Leak Due to Radiation = 1.8 W/m
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Fluid Friction LossesWloss = M Ploss / ,
Where M = mass flow per unit length Ploss = pressure loss per unit length = fluid density
Fluid Re (mm) DH (cm) v (m/s) P
(atm/10 km)
Power
Loss (W/m)
H (20K) 2.08 x 106 0.015 45.3 4.76 2.0 3.2
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Heat Removal
dT/dx = WT/(ρvCPA)H2, where dT/dx = Temp rise along cable, K/mWT = Thermal in-leak per unit Lengthρ = H2 Density v = H2 Flow RateCP = H2 Heat Capacity A = Cross-sectional area of H2 cryotube
SuperCable Losses (W/M) K/10km
Radiative Friction ac Losses Conductive Total dT/dx
1.8 3.2 1 1 7 10-2
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SuperCable H2 Storage
Some Storage Factoids
Power (GW)
Storage (hrs) Energy (GWh)
TVA Raccoon Mountain 1.6 20 32
Scaled ETM SMES 1 8 8
One Raccoon Mountain = 13,800 cubic meters of LH2
LH2 in 45 cm diameter, 20 km bipolar SuperCable = Raccoon Mountain
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Relative Density of H2 as a Function of Pressure at 77 K wrt LH2 at 1 atm
0
0.2
0.4
0.6
0.8
1
1.2
0 2000 4000 6000 8000 10000
Pressure (psia)
Rh
o(H
2)/
Rh
o(L
H2)
Vapor
Supercritical
50% LH2
100% LH2
H2 Gas at 77 K and 1850 psia has 50% of the energy content of liquid H2
and 100% at 6800 psia
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HV Insulation
“Super-I nsulation”
FlowingHigh PressureHydrogen Gas
Superconductor“Conductor”
DO
DH
Al
Al “core” of diameter DCwound with
HTSC tape ts
thick
Flowing liquid N2 cryogen in flexible tube, diameter DN
HV Insulation
“Super-I nsulation”
FlowingHigh PressureHydrogen Gas
Superconductor“Conductor”
DO
DH
Al
Al “core” of diameter DCwound with
HTSC tape ts
thick
Flowing liquid N2 cryogen in flexible tube, diameter DN
“Hybrid” SuperCable
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Electricity Generation - June 2004
Coal49%
Oil2%Hydro
7%
Nukes20%
Gas18%
Renewable2%
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Mackenzie Valley Pipeline
1300 km
18 GW-thermal
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Electrical Insulation
“Super-Insulation”
Superconductor
LNG @ 105 K1 atm (14.7 psia)
Liquid Nitrogen @ 77 K
Thermal Barrier to
LNG
LNG SuperCable
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Questions and/or Comments?
Slings and Arrows Welcomed!