Article ID Journal Published Year Pages File Type
262631 Energy and Buildings 2015 10 Pages PDF
Abstract

•A field study of glazed and unglazed balcony temperature conditions was conducted.•The IDA-ICE 4.61 programme is suitable for highly glazed space simulations.•The use of software's climate model and detailed window structure is recommended.•Wrong input parameter can cause more inaccuracy than choice of modelling method.•Solar absorption, airtightness and supply air solution are critical to the results.

Many previous articles point out the need of using accurate energy simulation programme for studying the indoor climate and energy use of the highly glazed spaces. This article examines the suitability of IDA Indoor Climate and Energy (IDA-ICE) software for the glazed space energy simulation in theory and practice. The analysis of how the programme meets highly glazed space simulation needs has been done and comparison to the actual field measurement case conducted by using two different window and zone models featured by the simulation tool to examine the software function in practice. The measured data is from the two flats and attached balconies situated in Tampere (61°29′53″ N, 023°45′39″ E), Finland.The final outcome was that the IDA-ICE 4.61 is well suited for the glazed space studies and the most accurate results are achieved by using a detailed window and zone models. Critical input parameters were the absorption coefficient of the surfaces, the balcony's unintended ventilation, external shading and building supply air flow rate from the outside to apartment through the balcony. The results show that in design situation where attached balcony's one side is glazed and two sides opaque, the uncertainty of the input parameters can easily cause greater deviation between measured and simulated indoor temperatures than the deviation caused by the use of different zone and window models.

Related Topics
Physical Sciences and Engineering Energy Renewable Energy, Sustainability and the Environment
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