hig.sePublikasjoner
Endre søk
Begrens søket
1 - 7 of 7
RefereraExporteraLink til resultatlisten
Permanent link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Treff pr side
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Forfatter A-Ø
  • Forfatter Ø-A
  • Tittel A-Ø
  • Tittel Ø-A
  • Type publikasjon A-Ø
  • Type publikasjon Ø-A
  • Eldste først
  • Nyeste først
  • Skapad (Eldste først)
  • Skapad (Nyeste først)
  • Senast uppdaterad (Eldste først)
  • Senast uppdaterad (Nyeste først)
  • Disputationsdatum (tidligste først)
  • Disputationsdatum (siste først)
  • Standard (Relevans)
  • Forfatter A-Ø
  • Forfatter Ø-A
  • Tittel A-Ø
  • Tittel Ø-A
  • Type publikasjon A-Ø
  • Type publikasjon Ø-A
  • Eldste først
  • Nyeste først
  • Skapad (Eldste først)
  • Skapad (Nyeste først)
  • Senast uppdaterad (Eldste først)
  • Senast uppdaterad (Nyeste først)
  • Disputationsdatum (tidligste først)
  • Disputationsdatum (siste først)
Merk
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1.
    Amiri, Shahnaz
    et al.
    Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik. Department of Management and Engineering, Division of Energy Systems, Linköping University, Linköping, Sweden.
    Trygg, Louise
    Department of Management and Engineering, Division of Energy Systems, Linköping University, Linköping, Sweden.
    Moshfegh, Bahram
    Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik. Department of Management and Engineering, Division of Energy Systems, Linköping University, Linköping, Sweden.
    Assessment of the natural gas potential for heat and power generation in the County of Östergötland in Sweden2009Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 37, nr 2, s. 496-506Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of this study is to investigate the potential use of natural gas for heat and power production for the municipality of Linkoping, Norrkoping and Finspang in the County of Ostergotland, Sweden. The results of the study revealed that these three municipalities with the present heating demand can convert 2030 GWh/year of the present fuel mixed to natural gas. The expansion of natural gas provides the possibility to increase the electricity generation with approximately 800 GWh annually in the County of Ostergotland. The global emissions of CO(2) reduce also by approximately 490 ktonne/year by assuming the coal condensing power plant as the marginal power plant. The total system cost decreases by 76 Mkr/year with the present electricity price which varies between 432 and 173 SEK/MWh and with 248 Mkr/year if the present electricity price increases to 37% which is approximately corresponding to European electricity prices. Sensitivity analysis is done with respect to the different factors such as price of electricity, natural gas, etc. The findings show that increased price of electricity and increased district heating demand increases the profitability to convert to natural gas using CHP plant. (C) 2008 Elsevier Ltd. All rights reserved.

  • 2.
    Dotzauer, Erik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Greenhouse gas emissions from power generation and consumption in a nordic perspective2010Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 38, nr 2, s. 701-704Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    During the last decade, there has been an intensive debate on-going in Sweden about how power generation and use affect global warming. More precisely, the discussion has considered how electricity shall be assessed from an environmental and climate perspective in different situations. This article gives a critical analysis on the main viewpoints. A number of environmental-impact assessment principles are outlined and critically examined. Concepts like average electricity and marginal electricity are discussed, and Electricity Disclosure as a basis for evaluation is addressed. The impact from Emission Trading and Tradable Green Certificates is also considered. Recommendations to concerned stakeholders are given. The clash points in the Swedish debate are highlighted and thus made available to a broader audience outside Scandinavia.

  • 3.
    Eriksson, Ola
    et al.
    Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för byggnadskvalitet.
    Finnveden, Göran
    Environmental Strategies Research—fms, KTH, Stockholm, Sweden.
    Ekvall, Tomas
    Department of Energy and Environment, Chalmers University of Technology, Göteborg, Sweden.
    Björklund, Anna
    Environmental Strategies Research—fms, KTH, Stockholm, Sweden.
    Life cycle assessment of fuels for district heating: a comparison of waste incineration, biomass- and natural gas combustion2007Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 35, nr 2, s. 1346-1362Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of this consequential life cycle assessment (LCA) is to compare district heating based on waste incineration with combustion of biomass or natural gas. The study comprises two options for energy recovery (combined heat and power (CHP) or heat only), two alternatives for external, marginal electricity generation (fossil lean or intense), and two alternatives for the alternative waste management (landfill disposal or material recovery). A secondary objective was to test a combination of dynamic energy system modelling and LCA by combining the concept of complex marginal electricity production in a static, environmental systems analysis. Furthermore, we wanted to increase the methodological knowledge about how waste can be environmentally compared to other fuels in district-heat production. The results indicate that combustion of biofuel in a CHP is environmentally favourable and robust with respect to the avoided type of electricity and waste management. Waste incineration is often (but not always) the preferable choice when incineration substitutes landfill disposal of waste. It is however, never the best choice (and often the worst) when incineration substitutes recycling. A natural gas fired CHP is an alternative of interest if marginal electricity has a high fossil content. However, if the marginal electricity is mainly based on non-fossil sources, natural gas is in general worse than biofuels. 

  • 4.
    Holmgren, Kristina
    et al.
    Department of Mechanical Engineering, Division of Energy Systems, Linköping Institute of Technology, Linköping, Sweden.
    Amiri, Shahnaz
    Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik. Department of Mechanical Engineering, Division of Energy Systems, Linköping Institute of Technology, Linköping, Sweden.
    Internalising external costs of electricity and heat production in a municipal energy system2007Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 35, nr 10, s. 5242-5253Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Both energy supply and waste treatment give rise to negative effects on the environment, so-called external effects. In this study, monetary values on external costs collected from the EU's ExternE project are used to evaluate inclusion of these costs in comparison with an energy utility perspective including present policy instruments. The studied object is a municipal district heating system with a waste incineration plant as the base supplier of heat. The evaluation concerns fuels used for heat production and total electricity production, for scenarios with external costs included and for a scenario using the present policy instrument. Impacts of assumptions on marginal power producers (coal or natural gas power plants) are investigated, since locally produced electricity is assumed to replace marginal power and thus is credited for the avoided burden. Varying levels of external costs for carbon dioxide emissions are analysed. The method used is an economic optimisation model, MODEST. The conclusion is that present policy instruments are strong incentives for cogeneration, even when external costs are included. Waste is fully utilised in all scenarios. In cases where coal is the marginal power producer, more electricity is produced; when natural gas is the marginal power producer, less is produced. There are several uncertainties in the data for external costs, both methodological and ethical. In the ExternE data, not all environmental impacts are included. For waste incineration, ashes are not included, and another difficulty is how to treat the avoided burden of other waste treatment methods. 

  • 5.
    Klugman, Sofia
    et al.
    Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik.
    Karlsson, Magnus
    Department of Management and Engineering, Division of Energy Systems, Linköping University, Sweden.
    Moshfegh, Bahram
    Department of Management and Engineering, Division of Energy Systems, Linköping University, Sweden.
    A Swedish integrated pulp and paper mill-Energy optimisation and local heat cooperation2009Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 37, nr 7, s. 2514-2524Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Heat cooperation between industries and district heating companies is often economically and environmentally beneficial. In this paper, energy cooperation between an integrated Swedish pulp and paper mill and two nearby energy companies was analysed through economic optimisations. The synergies of cooperation were evaluated through optimisations with different system perspectives. Three changes of the energy system and combinations of them were analysed. The changes were process integration, extending biofuel boiler and turbine capacity and connection to a local heat market. The results show that the single most promising system change is extending biofuel and turbine capacity. Process integration within the pulp and paper mill would take place through installing evaporation units that yield less excess heat but must in this particular case be combined with extended biofuel combustion capacity in order to be beneficial. Connecting to the local heat market would be beneficial for the pulp and paper mill, while the studied energy company needs to extend its biofuel capacity in order to benefit from the local heat market. Furthermore, the potential of reducing CO(2) emissions through the energy cooperation is shown to be extensive; particularly if biofuel and turbine capacity is increased. (C) 2009 Published by Elsevier Ltd.

  • 6.
    Lerche Raadal, Hanne
    et al.
    Ostfold Research, Gamle Beddingvei 2B, NO-1671 Kråkerøy, Norway.
    Dotzauer, Erik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Hanssen, Ole Jørgen
    Research, Gamle Beddingvei 2B, NO-1671 Kråkerøy, Norway.
    Kildal, Hans Petter
    Bergen Energi, Fantoftveien 38, NO-5072 Bergen, Norway.
    The interaction between Electricity Disclosure and Tradable Green Certificates2012Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 42, s. 419-428Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Guarantees of Origin (GO) and Electricity Disclosure, as defined in the EU's Renewable Energy and Electricity Market Directives, require that European consumers should be provided with reliable information about the origin of their electricity supply. At the same time, the Renewable Energy Directive requires that support mechanisms be implemented with the aim of increasing the proportion of energy from renewable sources. The Quota System with Tradable Green Certificates (TGC) was established in Sweden as a support mechanism in 2003 and is, from 2012, planned to be extended to become a Swedish-Norwegian system. This article discusses the effects of Electricity Disclosure and the TGC system when working as two separate entities, and the potential interaction between the systems when working in tandem. It appears that Electricity Disclosure may create a customer-driven demand for renewable electricity, which can supplement the TGC system. In the long-term, GOs may thus influence the decisions made by investors in renewable energy. However, currently Electricity Disclosure has very low, or no, impact on the total production of electricity from renewable sources when compared with a stand-alone TGC system.

  • 7.
    Schmidt, Johannes
    et al.
    University of Natural Resources and Life Sciences, Austria.
    Leduc, Sylvain
    International Institute for Applied Systems Analysis, Austria.
    Dotzauer, Erik
    Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling.
    Schmid, Erwin
    University of Natural Resources and Life Sciences, Austria.
    Cost-effective policy instruments for greenhouse gas emission reduction and fossil fuel substitution through bioenergy production in Austria2011Inngår i: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 39, nr 6, s. 3261-3280Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Climate change mitigation and security of energy supply are important targets of Austrian energy policy. Bioenergy production based on resources from agriculture and forestry is an important option for attaining these targets. To increase the share of bioenergy in the energy supply, supporting policy instruments are necessary. The cost-effectiveness of these instruments in attaining policy targets depends on the availability of bioenergy technologies. Advanced technologies such as second-generation biofuels, biomass gasification for power production, and bioenergy with carbon capture and storage (BECCS) will likely change the performance of policy instruments. This article assesses the cost-effectiveness of energy policy instruments, considering new bioenergy technologies for the year 2030, with respect to greenhouse gas emission (GHG) reduction and fossil fuel substitution. Instruments that directly subsidize bioenergy are compared with instruments that aim at reducing GHG emissions. A spatially explicit modeling approach is used to account for biomass supply and energy distribution costs in Austria. Results indicate that a carbon tax performs cost-effectively with respect to both policy targets if BECCS is not available. However, the availability of BECCS creates a trade-off between GHG emission reduction and fossil fuel substitution. Biofuel blending obligations are costly in terms of attaining the policy targets

1 - 7 of 7
RefereraExporteraLink til resultatlisten
Permanent link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf