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Model aims, scope and methods . Aims: What measures to control emissions and energy?Demand managementAlternative transport modesTechnologies and fuelsLogisticsWhat regulatory and economic instruments can be applied?Scope:Global shipping system from 2010 to 2050; Energy, Emissions and Costs
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1. Additional material: aims, scope and illustrative results
2. Model aims, scope and methods Aims:
What measures to control emissions and energy?
Demand management
Alternative transport modes
Technologies and fuels
Logistics
What regulatory and economic instruments can be applied?
Scope:
Global shipping system from 2010 to 2050; Energy, Emissions and Costs
Methods:
Simulation and optimisation
Note: data illustrative only
3. Model scope Calculate energy, emissions cost for each scenario
For each combination of:
Load type passenger, freight
Mode
Route
Ship (transporter) size and technology
Allocate emissions:
Space
Time
Country, ownership
3
4. Global trade and transport system schematic 4
5. Transport system schematic Transport across nodes and links.
Systems for each load type are almost independent for sea transport, but not other modes. 5
6. Trade Products are mainly transported because the costs of transport are less than the cost difference between indigenous and foreign/remote production; i.e. a commodity may be transported from B to A if:
(Cost production at location A) > [(Cost production at B) + (Cost transport) ]
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7. Transport: volume and distance
Load lifted by distance and mode
(histogram from link traffic)
Load km by distance and mode 7
8. Transport: load distance
Load distance scenarios
Freight t.km by type 8
9. Ship model: operations Calculate energy and emissions for propulsion, auxiliary and port functions. 9
10. Ship model: ship power consumption by operation
Power consumption by operation
Power consumption during 20 day trip:
Energy = power x time 10
11. Ship model: economics
Annual costs
Costs vs speed
Current fuel costs Future fuel/carbon costs (300% tax)
Optimum speed ~17 knots Optimum speed ~13 knots
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12. Scenario measures Measures : types, maximum values and combinations
Measures : Rate of effect 12
13. Ship stock model: vintage and efficiency
Stock by vintage
New build and retrofit efficiency 13
14. Ship stock model: demand and changes Demand, ship size and number
Stock changes 14
15. Ship stock model: energy and fuel
Propulsion energy output
by vintage
Energy delivered by fuel 15
16. Scenarios Number of ships
Ship build 16
17. Scenarios Propulsion energy
CO2 17
18. Optimization - trade, route/mode, technology and operation (TRMTO acronym for this presentation) Different objective functions:
Fix trade, optimise route/mode
Fix consumption: minimise costs to meet CO2 targets
Maximise total welfare of system
Decision variables
Consumption
Production
Route mode flows
Technology
Operation
19. TRMTO Inputs
Production and consumption curves for each region/country
Transport carbon and costs for each route/mode dependent on route, mode, fuel, technology, operation etc.
Transporter technical and cost capital and operation functions
20. TRMTO INSTRUMENTS
For example, CO2 limit, or tax:
21. TRMTO
22. TRMTO Route / mode data and model results
Should include pipe, air
23. TRMTO Summary output of
consumption, production flows (maxima) and costs
transport
24. Trade optimisation animated This shows TradeMod seeking a least cost solution.
It illustrates how patterns of tradeflow might change.
This model accounts for link constraints.
How might it be applied to global shipping?
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25. Shipping model: Data 25