Evaluation of various retrofitting concepts of building envelope for offices equipped with large radiant ceiling panels by dynamic simulations

Jordan, Sabina (author), Hafner, Jože (author), Kuhn, Tilmann E. (author), Legat, Andraž (author), Zbašnik-Senegačnik, Martina (author)

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.

• Language: English
• Keywords: radiant ceiling panels, heating, cooling, modelling, dynamic simulation, retrofitting concepts
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FA - Faculty of Architecture
• Publication status: Published
• Publication version: Version of Record
• Year: 2015
• Number of pages: Str. 13169-13191
• Numbering: Vol. 7, iss. 10
• PID: 20.500.12556/RUL-130392
• UDC: 624
• ISSN on article: 2071-1050
• DOI: 10.3390/su71013169
• COBISS.SI-ID: 2148199
• Publication date in RUL: 14.09.2021

Record is a part of a journal

• Title: Sustainability
• Shortened title: Sustainability
• Publisher: MDPI
• ISSN: 2071-1050
• COBISS.SI-ID: 5324897

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.10.2015

Secondary language

• Language: Slovenian
• Keywords: paneli, gretje, hlajenje

Projects

• Funder: EC - European Commission
• Funding programme: FP7
• Project number: 212206
• Name: Resource- and Cost-effective integration of renewables in existing high-rise buildings
• Acronym: COST-EFFECTIVE