Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Production of Synthetic Natural Gas from Refuse-Derived Fuel Gasification for Use in a Polygeneration District Heating and Cooling System
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. Univ Lisbon, Portugal.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-1837-5439
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0002-3661-7016
2016 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 9, no 12, article id 1080Article in journal (Refereed) Published
Abstract [en]

Nowadays conventional district heating and cooling (DHC) systems face the challenge of reducing fossil fuel dependency while maintaining profitability. To address these issues, this study examines the possibility of retrofitting DHC systems with refuse-derived fuel (RDF) gasifiers and gas upgrading equipment. A novel system is proposed based on the modification of an existing DHC system. Thermodynamic and economic models were established to allow for a parametric analysis of key parameters. The study revealed that such an upgrade is both feasible and economically viable. In the basic scenario, the retrofitted DHC system can simultaneously produce 60.3 GWh/year of heat, 65.1 GWh/year of cold, 33.2 GWh/year of electricity and 789.5 tons/year of synthetic natural gas. A significant part of the heat load can be generated from the waste heat of the upgrading equipment. The investment in retrofitting the polygeneration DHC system presents a payback period of 3 years.

Place, publisher, year, edition, pages
MDPI AG , 2016. Vol. 9, no 12, article id 1080
Keywords [en]
polygeneration, synthetic natural gas, district heating and cooling systems, refuse derived fuels, gasification
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-202451DOI: 10.3390/en9121080ISI: 000392402700081Scopus ID: 2-s2.0-85020529091OAI: oai:DiVA.org:kth-202451DiVA, id: diva2:1078395
Note

QC 20170303

Available from: 2017-03-03 Created: 2017-03-03 Last updated: 2018-04-27Bibliographically approved
In thesis
1. Polygeneration District Heating and Cooling Systems Based on Renewable Resources
Open this publication in new window or tab >>Polygeneration District Heating and Cooling Systems Based on Renewable Resources
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Traditional district heating (DH) and district heating and cooling (DHC) systems have to address two principal challenges: phase-out of fossil fuels in favor of renewables; and profit instability related to declines in heating and cooling demands along with electricity price fluctuations. These obstacles can be overcome at once through upgrading these systems to a polygeneration concept by means of a retrofitted air-steam gasifier and gas upgrading equipment, enabling the use of renewable feedstocks such as refuse derived fuel (RDF) and municipal solid waste (MSW). In particular, the polygeneration DHC system will be able to produce simultaneously heating, cooling, electricity and value-added products – char, syngas, synthetic natural gas (SNG) and hydrogen. This work investigates the retrofit of these DHC systems through a case study based on the existing Climaespaco facility, located in Lisboa, Portugal. Thermodynamic, exergy, economic, exergo-economic and environmental models were built in Engineering Equation Software (EES) and Matlab. Overall, both RDF and MSW were found to be technically feasible and economically viable for using as feedstocks in the polygeneration DHC system. SNG production integrated in the polygeneration DHC system through the air-steam gasification and gas upgrading equipment is judged to be practical and also boosts revenues. The highest energy efficiency is achieved for cases where char is the sole by-product. System efficiencies drop as other value-added products are included as system outputs, although the extent of the efficiency decline can be adjusted by regulating syngas and SNG production. The highest discounted net cash flows are found for the scenario where SNG, syngas and char are produced simultaneously. A payback period of 3 years was determined for this and the other cases. From the exergy and exergo-economic perspectives, the scenario of simultaneous char and syngas production is the most promising as the overall exergy efficiency has the highest value and product exergo-economic costs are the lowest. However, from the products diversity viewpoint, the simultaneous production of char, SNG, syngas and H2 is advantageous.

Place, publisher, year, edition, pages
Kungliga Tekniska högskolan, 2018. p. 128
Series
TRITA-ITM-AVL ; 2018:15
Keywords
district heating and cooling systems, polygeneration, refuse derived fuel, municipal solid waste, gasification.
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-226929 (URN)978-91-7729-785-7 (ISBN)
Public defence
2018-05-21, Meeting Room (0.19), Informatics II Building, Instituto Superior Tecnico,Av. Rovisco Pais,1049-001, Lisboa, Portugal, 17:28 (English)
Opponent
Supervisors
Available from: 2018-05-02 Created: 2018-04-27 Last updated: 2018-05-02Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Kabalina, NataliaWeihong, YangMartin, Andrew R.

Search in DiVA

By author/editor
Kabalina, NataliaCosta, MarioWeihong, YangMartin, Andrew R.
By organisation
Energy TechnologyMaterials Science and Engineering
In the same journal
Energies
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 52 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf