Presentation jan bekkering 2012 11-21 edc groningen

Modeling sustainable gas supply chains

-Balancing supply and

demand

J. Bekkering

18-04-2023 2Modeling sustainable gas supply chains

Considered green gas supply chain

‘Standard’ calculation model, constant gas production


Cost priceAt constant production


Seasonal fluctuation gas demand

-

time

mn

3 /hr

time

ton

nes/

yr

time

ton

nes

time

mn

3 /hr

time

mn

3 /hr

What is the cost price of green gas as a function of scale, when the seasonal fluctuation in

gas demand should be met by a green gas supply chain?


How to model seasonal gas demand

Data Sep. 2009 – Sep. 2010


Range of Fourier curvesDemand (theoretical)


Three considered scenarios

Scenario 1

Scenario 1: Flexible biogas production

timem

n3 /h

rtime

mn

3 /hr



Scenario 2


Scenario 2: Green gas storage within supply chain

Gas storageQ 10,000 Nm≦3

: pipes 8.5 bar

10,000 < Q < 300,000 Nm3

: pipes 100 bar (and compression)



Scenario 3


Scenario 2: Green gas storage within supply chain

Scenario 3: Adding second digester (with 6 months production)

Production second digester only during winter months


Results overview scale 0.8E6Influence Seasonal Swing Factor on cost price


Results overview scale 2.4E6Influence Seasonal Swing Factor on cost price


Results flexible biogas prod.Influence Seasonal Swing Factor on cost price


Conclusions/Further research-

- Increasing SSF means large storage need

- Gas storage is very expensive

- Green gas production (still?) preferably near business areas

- Research into flexible biogas production makes sense

The

End


Results green gas storageInfluence Seasonal Swing Factor on cost price

Q 10,000 Nm≦3

: pipes 8.5 bar

10,000 < Q < 300,000 Nm3

: pipes 100 bar (and compression)


Results second digesterInfluence Seasonal Swing Factor on cost price

Production second digester during winter months

Presentation jan bekkering 2012 11-21 edc groningen

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