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Evaluation of Various Retrofitting Concepts of Building Envelope for Offices Equipped with Large Radiant Ceiling Panels by Dynamic Simulations

Author

Listed:
  • Sabina Jordan

    (Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, Ljubljana 1000, Slovenia)

  • Jože Hafner

    (Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, Ljubljana 1000, Slovenia
    These authors contributed equally to this work.)

  • Tilmann E. Kuhn

    (Fraunhofer Institute for Solar Energy Systems, ISE, Heidenhofstrasse 2, Freiburg 79110, Germany
    These authors contributed equally to this work.)

  • Andraž Legat

    (Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, Ljubljana 1000, Slovenia
    These authors contributed equally to this work.)

  • Martina Zbašnik-Senegačnik

    (Faculty of Architecture, University of Ljubljana, Zoisova cesta 12, Ljubljana 1000, Slovenia
    These authors contributed equally to this work.)

Abstract

In order to achieve significant savings in energy and an improved level of thermal comfort in retrofitted existing buildings, specific retrofitting concepts that combine new technologies and design need to be developed and implemented. Large radiant surfaces systems are now among the most promising future technologies to be used both in retrofitted and in new low-energy buildings. These kinds of systems have been the topic of several studies dealing with thermal comfort and energy utilization, but some specific issues concerning their possible use in various concepts for retrofitting are still poorly understood. In the present paper, some results of dynamic simulations, with the transient system simulation tool (TRNSYS) model, of the retrofitted offices equipped with radiant ceiling panels are presented and thoroughly analysed. Based on a precise comparison of the results of these simulations with actual measurements in the offices, certain input data for the model were added, so that the model was consequently validated. The model was then applied to the evaluation of various concepts of building envelopes for office retrofitting. By means of dynamic simulations of indoor environment it was possible to determine the benefits and limitations of individual retrofitting concepts. Some specific parameters, which are relevant to these concepts, were also identified.

Suggested Citation

  • Sabina Jordan & Jože Hafner & Tilmann E. Kuhn & Andraž Legat & Martina Zbašnik-Senegačnik, 2015. "Evaluation of Various Retrofitting Concepts of Building Envelope for Offices Equipped with Large Radiant Ceiling Panels by Dynamic Simulations," Sustainability, MDPI, vol. 7(10), pages 1-23, September.
    • Handle: RePEc:gam:jsusta:v:7:y:2015:i:10:p:13169-13191:d:56387
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    References listed on IDEAS

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    1. Buonomano, Annamaria & Palombo, Adolfo, 2014. "Building energy performance analysis by an in-house developed dynamic simulation code: An investigation for different case studies," Applied Energy, Elsevier, vol. 113(C), pages 788-807.
    2. Fonseca Diaz, Néstor, 2011. "Modeling of a hydronic ceiling system and its environment as energetic auditing tool," Applied Energy, Elsevier, vol. 88(3), pages 636-649, March.
    3. Cristina Carletti & Fabio Sciurpi & Leone Pierangioli, 2014. "The Energy Upgrading of Existing Buildings: Window and Shading Device Typologies for Energy Efficiency Refurbishment," Sustainability, MDPI, vol. 6(8), pages 1-24, August.
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