practical examples how to improve energy efficiency...5th cewep congress on waste-to-energy 2010 30...
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5th CEWEP Congress on Waste-to-Energy 201030 June to 2 Julyin Antwerp
Practical examples how to improve energy efficiency
Carsten Spohn
for
[email protected] www.cewep.eu
Location and Capacities of WtE-plants in Germany
Kempten
Völklingen Pirmasens
Eschbach
Augsburg
Günzburg
WeißenhornUlm
Göppingen
Stuttgart
Böblingen
Mannheim
Darmstadt
Nürnberg
BambergWürzburg
Schweinfurt
Coburg
Offenbach
Frankfurt a. M.
Mainz
LudwigshafenNeunkirchen
Kiel
Bremerhaven
Tornesch-Ahrenlohe
Hamburg
HamburgHamburgStapelfeld
Neustadt
HelmstedtHannover
HamelnBielefeld
Bremen
Emlichheim
Salzbergen
Hamm
IserlohnHagen
Herten
Krefeld
Kamp-Lintfort
EssenOberhausen
Düsseldorf
LeverkusenKöln
Eschweiler Bonn
SolingenWuppertal Kassel
Zella-Mehlis
ZorbauLeuna
Staßfurt
Lauta
Berlin
Magdeburg
Ludwigslust
Schwandorf
IngoslstadtL a n d shut
GeiselbullachUnterföhring
Rosenheim
Burgkirchen
in Mg/2009
2.500.0001.000.000250.000
MVA-Kapazitäten
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Energy Key Figures of German WtE-plants (without RDF)
value 2005 2006 2007 2008increase/decrease
2005 to 2008
heat exp. [mil MWh] 13.19 13.72 13.75 14.44 + 9.5 %
Generator output [MW] 1 210 1 250 1 330 1 440 + 19.0 %
power prod [mil MWh] 5.51 6.26 6.93 7.35 + 33.3 %
power exp. [mil MWh] 3.95 4.54 5.16 5.50 + 39.1 %
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Energy Efficiency of German WtE-plants
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Specific Energy Efficiency of German WtE-plants
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Potential Energy Production
2012*
Max
2008
2007
2006
2005
7
9
11
13
15
17
19
21
23
25
53 3.5 4 4.5 5 5.5 6 6.5 7 7.5
power (exported) [mill. MWh]
heat
(exp
ort
ed
) [
mill.
MW
h]
ITAD member data 2008
projects w/ probability > 50 %
maximum potential, perfect circumstances
Comparison factor: 2.6
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Increase of Energy Efficiency- Technical Measures
– direct optimisation of energy extraction(turbine, generator, steam parameters, switch to ORC?)
– increase of availability
– minimisation of energy import
– increase of heat export/use
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Example IOptimizing internal heat usefor SCR
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Boundary conditions:
plant capacity ca. 250.000 t/a (2 lines)
R1 ≅ 0,7 9
Decrease of cat temperature:
320 °C -> 220 °C
substituted oil:
3 mio. l/a
Increase of energy efficiency (R1):
0,07
Internal heat use for SCR
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Example IIIncreasing heat export into an integrated district heating network
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Boundary conditions:
TAD Ulm
plant capacity:
ca. 150.00 t/a (2 lines)
power export:
ca. 40.000 MWh/a
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integrated energy network(district heating)
grid power (heat): 601 GWh
45% of heat demand of the City of Ulm
System length: 146 km
Industrial area
WtE-plant: increase of heat export:
10%
Total export:~ 130.000 MWh/a
City of Ulm
WtE-plant
Power plant (fossil)
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Example IIIIncreasing heat export with mobile heat storage tanks
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Boundary conditions:
plant capacity:
ca. 300.00 t/a (4 lines)
power export:
ca. 110.000 MWh/a
heat export:
no possibility of heat
export yet (no district
heating net or industrial
steam user)15
Main principle:
Using heat from
• steam (150°C)
• flue gas (250°C) - optional
Wtplant
)
Truck and container
Truck and container
User B
User A
WtE-plant(charging station)
W
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Mobile heat storage tank:
Using a modified standard container
volume of storage medium 15 m3
Mass of storage medium 12 t
Surface 23,2 m2
Max. air flow rate 20.000 m3/h
Charging time 4,6 h (150°C)
3,9 h (250°C)
thermal capacity 2,6 MWh
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Efficiency – energy flow
WtE-plant(charging station) W
W
5250 operating hours per year
auxiliary energy, transport
132%heat
energy for user user
fossil energy
105 %
10 %
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Thank you for listening.
Any questions?
Contact us!
Martinstraße 21, 97070 Würzburg, Germany+49 (0)931- 200 90 6-0
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