Comparison of different windows for low-energy houses

Abstract

Abstract. This paper deals with an outcome of long-term experimental measurement of windows suitable for low-energy or zero houses. Three different windows are evaluated since 2011 in the Laboratory of the Department of Building Engineering and Urban Planning, Faculty of Civil Engineering, University of Zilina. All windows have implemented triple glazing, but with various frame type. Two frames are made from plastic and one from wood. The plastic frames differ from each other with use of thermal insulation inside one of mentioned frames. The test room has adjustable indoor boundary conditions and is exposed to real outdoor climate conditions measured through the own detached experimental weather station. Temperatures and heat fluxes are continuously measured on glazings and frames. This paper compares the windows by the requirements of Slovak standard on the inner surface temperatures and differences of the thermal transmittance for glazing and sash.

Influence analysis of climate data time-step on the accuracy of HAM simulation

“…This new automatic weather station (since 2017) is used for whole experimental research conducted by the department (Fig. 1), such as façade research [4], wooden wall research [5] or research of windows for low energy houses [6]. For all conducted research tasks, a precise and high resolution monitoring of climate parameters is very important.…”

Analysis of window model accuracy and its influence on the results compared to the measurement

“…and several heat flux plates. This enables the possibility to compare the windows directly [8,10]. Comparison with numerical modelled values such as in this case was not made yet.…”