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Egbert KlopDWA installation- and energy consultantsBodegraven, The Netherlands

Waste heat utilisation in Sloe Area,province of Zeeland, The Netherlands

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Contents of presentation

• DWA • The project• Co-operation• The goal• The proces• Results business cases• Focus on ‘business case 1’• Follow up

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• Founded 1986• 110 employees• Four locations• Independent• Stewardship• Focus on:

- sustainability- energy

efficiency

DWA installation- & energy consultants

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The project• Location: Sloe Area (1960)• Close to Vlissingen• Focus on industrial waste

heat usage, but also CO2, water, biomass

• Initiated by province of Zeeland

• Funded by ‘OP-Zuid’• Started June 2009• Final report

September 2010

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Co-operation• Strong co-operation

– Zeeland province (principal)– Industry, e.g. Total,

Thermphos, EPZ, ..– Zeeland Seaports– AgentschapNL– Technical high college

o Zeelando Avans

– EIZ (innovation)– ZMF (environment)

• Balanced team

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The goal of the project

• Feasibility study and pre-engineering of feasible projects

• Waste heat, but …• Five business cases• Commitment • Business model • ‘Ready for take off’

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The process• Phase 1: kick off• Phase 2: inventory • Phase 3: regional scan• Phase 4: brainstorm• Phase 5: workshops• Phase 6: business cases• Phase 7: knowledge exchange• Phase 8: follow up

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Intermezzo: four step model

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Results (1)

• Approximately 45 ideas for potential projects

• Media:– waste heat– cold – biomass – water – slobs– CO2

• Interest of industrial parties• Five potential business cases

(BC’s)

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Results (2)

• Business case 1: heat grid TRN (steam or hot water)• Business case 2: ‘mobile’ heat• Business case 3: electricity generation of waste heat• Business case 4: heat grid Thermphos (steam)• Business case 5: heat, slobs & water TRN <-> Martens

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Business case 1:heat grid TRN (1)

• Waste heat from Total Refinery Netherlands (TRN)

• Heat– Supply: 12,6 MWt

– Heat Source: flue gasses 300 -> 160°C

– Additional supply: 21 - 46 MWt(EPZ Power plant)

• Subcase 1: steam grid• Subcase 2: hot water grid

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Business case 1: heat grid TRN (2)

• Subcase 1: steam– Subcase 1a:

o Proces industryo Arkema, Mercuria, Nedstore, Pipeline Orange,

Martens– Subcase 1b:

o Mainly cold storeso Absorption cooling

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Business case 1: heat grid TRN (3)

Restwarmtevan TRN

RestwarmteEPZ

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Business case 1: heat grid TRN (4)• Economic analyses• Reference: natural gas price• Sale: 30% (TRN)• Buy: 80% (customer)• Exploitation: 80 -/- 30% = 50% (grid operator)• Benefit customer 20%• No subsidies or tax measures• Back up by TRN (steam)

Supplier Operator Consumer

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Business case 1: heat grid TRN (5)

(SPBT = Simple Pay Back Time)Overall 2210SPBT [year]

Consumer1,8 - 181,4 – 2,8SPBT [year]

Grid operator179,1SPBT [year]

TRN21 year7,9 yearSPBT [year]

35 MWt6,9 MWtPower [MWt]

Comment Subcase 1bSubcase 1a

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Business case 1: heat grid TRN (6)

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Business case 2: mobile heat

• Study to be started september 2010

• Goal: to bridge the gap– Distance– Time (discontinuity)– Demand (volume)

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Business case 3: electricity from waste heat

• Conversion of waste heat in electricity

• Conversion principle: Organic Rankine Cylce (ORC)

• Output– 480 - 1.220 kWe– 2.300 - 5.900 kWt

• SPBT ~ seven – ten year• Study performed by

Technical College Zeeland & DWA

pump

Evaporator

condensor

regenerator

turbine

generator

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Business case 4: heat grid Thermphos

• Heat demand integrated in business case 1• Heat supply from Thermphos (slag dump)• To be studied later in depth• Process modifications

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Businnes case 5: heat, slobs, water TRN <-> Martens• Heat delivery by TRN (LP

condensate) is feasible• SPBT ~ 1 - 2 years• Usage of slobs as fuel for

TRN: pilot• Delivery of water for

flushing purposes: not feasible

• Study performed by Technical College Zeeland

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Follow up

• Taskforce– Government– Captains of industry

• Decision making projects– Government– Industry

• Additional funding

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Overall conclusions• Feability

– Economically: +/-– Technically: +

• Additional funding necessary

• Sloe area– Existing situation (1960)– Integral (waste) heat grid is

not feasible– Local grid

• Attractive for consumer

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