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New system solution for biomass CHP plant
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). (RLAS)ORCID iD: 0000-0001-8307-124X
Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).ORCID iD: 0000-0001-9069-0807
2019 (English)Report (Other academic)Alternative title
Ny systemlösning för biokraftvärme (Swedish)
Abstract [en]

The main propose with this pre-study was to assess a new Chinese conceptconcerning Combined Heat and Power (CHP) plants for typical Swedish conditionswith biomass as fuel. The new enhancement is to use a large absorption heat pumpfor the final heat supply instead of the turbine condenser. More heat can then berecovered from the three units that will deliver the heat (the flue gas condenser, theturbine condenser and the absorption heat pump). So far, this new CHP solution hasnever been implemented outside China.For this pre-study, the simulation model was elaborated on design data from theÖrtofta biomass CHP plant outside Lund. The results show that Chinese conceptwill provide the higher conversion efficiency, but with lower power-to-heat ratio.The main benefit is that more heat can be recycled from the flue gas condenser. Thepayback time of installing absorption heat pump is always over eight years withinexpected intervals for alternative costs for electricity and heat.The Chinese concept is less suitable for the Swedish context with biomass backpressureCHP plants, since the proportion of lost electricity becomes rather high.The Chinese context with utilization of existing condensation turbines is stillinteresting, since condenser heat can be recycled without major modification ofexisting turbines.

Place, publisher, year, edition, pages
Eskilstuna: Energimyndigheten , 2019. , p. 15
Keywords [en]
Biomass, combined heat and power, absorption heat pump
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:hh:diva-41078OAI: oai:DiVA.org:hh-41078DiVA, id: diva2:1374832
Projects
Ny systemlösning för biokraftvärme
Funder
Swedish Energy Agency, 46415-1Available from: 2019-12-03 Created: 2019-12-03 Last updated: 2019-12-10

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Gong, MeiWerner, Sven

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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