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  • 1.
    Andersen, Martin
    et al.
    Dalarna University, School of Technology and Business Studies, Energy Technology. Chalmers University of Technology.
    Bales, Chris
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Dalenbäck, Jan-Olof
    Chalmers University of Technology.
    Techno-Economic Analysis of Solar Options for a Block Heating System2016In: Conference Proceedings: Eurosun 2016, Palma De Mallorca: International Solar Energy Society, 2016, , p. 16Conference paper (Refereed)
    Abstract [en]

    An innovative small solar district heating system with one central heating plant and four solar substations has been built in Vallda Heberg, Sweden, to supply a new housing area with passive houses. The target solar fraction was 40% and the total system design, including heat distribution in the buildings, was based on previous experience and aimed to be simple and cost-effective. The main aim of this study was to determine whether the system can be designed in a more effective manner by change of distribution system and load density. TRNSYS models were calibrated against measured data and then used to predict the energy performance. Results indicate that lower distribution heat losses can be obtained by change to a distribution concept with lower operating temperatures, while potentially reducing cost. Changes in heat density cause reduced distribution losses and boiler supplied heat demand, with only minor effects on solar system yield.

  • 2. Joly, M.
    et al.
    Ruiz, G.
    Mauthner, F.
    Bourdoukan, P.
    Emery, M.
    Andersen, Martin
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    A methodology to integrate solar thermal energy in district heating networks confronted with a Swedish real case study2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 122, p. 865-870Article in journal (Refereed)
    Abstract [en]

    Among other solutions, the integration of solar energy in district heating networks can contribute significantly to the increase of the renewable energy fraction in an urban area. This article describes the methodology developed in the framework of IEA Task 52 to help stakeholders during early phases of new or refurbishments projects. This methodology integrates a tool which is capable to assess the main solar indicators of the project with only two inputs: the solar installation area and the building heated area. The tool outputs are compared to the measured values of a Swedish case study.

  • 3.
    Perez de la Mora, Nicolas
    et al.
    Universidad de las Islas Baleares.
    Bava, Federico
    Technical University of Denmark.
    Andersen, Martin
    Dalarna University, School of Technology and Business Studies, Energy Technology. Chalmers University of Technology.
    Bales, Chris
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Lennermo, Gunnar
    Mälardalens Hogskola.
    Nielsen, Christian
    PanEnergi.
    Furbo, Simon
    Technical University of Denmark.
    Martínes-Moll, Víctor
    Universidad de las Islas Baleares.
    Solar district heating and cooling: A review2017In: International journal of energy research (Print), ISSN 0363-907X, E-ISSN 1099-114X, p. 1-23Article in journal (Refereed)
    Abstract [en]

    Both district heating and solar collector systems have been known and imple- mented for many years. However, the combination of the two, with solar collec- tors supplying heat to the district heating network, is relatively new, and no comprehensive review of scientific publications on this topic could be found. Thus, this paper summarizes the literature available on solar district heating and presents the state of the art and real experiences in this field. Given the lack of a generally accepted convention on the classification of solar district heating systems, this paper distinguishes centralized and decentralized solar district heating as well as block heating. For the different technologies, the paper describes commonly adopted control strategies, system configurations, types of installation, and integration. Real‐world examples are also given to provide a more detailed insight into how solar thermal technology can be integrated with district heating. Solar thermal technology combined with thermally driven chillers to provide cooling for cooling networks is also included in this paper. In order for a technology to spread successfully, not only technical but also eco- nomic issues need to be tackled. Hence, the paper identifies and describes dif- ferent

  • 4. Sotnikov, A.
    et al.
    Nielsen, C. K.
    Bales, Chris
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Dalenbäck, J. -O
    Andersen, Martin
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Psimopoulos, Emmanouil
    Dalarna University, School of Technology and Business Studies, Energy Technology.
    Simulations of a Solar-Assisted Block Heating System2017Conference paper (Refereed)
1 - 4 of 4
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