Thermal and Daylighting Performance of Energy-Efficient Windows in Highly Glazed Residential Buildings: Case Study in Korea

Abstract

Cooling load in highly glazed residential building can be excessively large due to uncontrolled solar energy entering the indoor space. This study focuses on the cooling load reduction and changes in the daylighting properties via the application of a double window system (DWS) with shading with various surface reflectivities in highly glazed residential buildings. Evaluation of thermal and daylighting performances is carried out using simulation tools. The reductions in cooling load and energy cost through the use of DWS are evaluated through a comparative simulation considering conventional windows: a single window and a double window. Three variables of window types, natural ventilation, and shading reflectivity are reflected in the study. According to our results, implementation of DWS reduced cooling load by 43%-61%. Electricity cost during the cooling period was reduced by a maximum of 24%. However, a shading device setting that prioritizes effective cooling load reduction can greatly decrease the daylighting factor and luminance level of indoor space. A DWS implementing shading device with highly reflective at all surfaces is appropriate option for the more comfortable thermal and visual environment, while a shading device with low reflectivity at rear of the surface can contribute an additional 4% cooling load reduction. OPEN ACCESSSustainability 2014, 6 7312

The Impact of High-Rise Residential Building Design Parameters on the Thermal and Energy Performance: A Literature Review

“…Previous work in this domain has shown that buildings can be sensitive to changes in specific design parameters based on the local climate. Factors including WWR (Chen, Yang, & Wang, 2017), (Xie, Xue, Mak, & Liu, 2017), ( Tibi & Mokhtar, 2014) , (Yu, Tian, Yang, Xu, & Wang, 2013), ], ventilation strategies (Hachem-Vermette, 2018), , (Al-Tamimi & Fadzil, 2012), (Chan & Chow, 2010), (Leigh, Bae, & Ryu, 2014), glazing materials, ( Tibi & Mokhtar, 2014), (Zhao, Künzel, & Antretter, 2015), (Yasar & Kalfa, 2012), (Cheung, Fuller, & Luther, 2005), (Bojic, Yik, & Sat, 2002), external shading (Cheong, Kim, & Leigh, 2014), (Al-Tamimi & Fadzil, 2012), , (Yik & Bojic, 2006), (Cho, Yoo, & Kim, 2014) and envelope infiltration (Carlsson, Touchie, & Richman, 2017), (Kosonen, Juha, Ilari, & Koikkalaninen, 2017), (McKeen & Fung, 2014), (Yik & Bojic, 2006) were among the most common parameters that influence a building's energy performance.…”

Influence of the Adaptation of Balconies to Loggias on the Lighting Climate inside an Apartment Building under Cloudy Sky

“…People are spending more and more time indoors and losing outdoor direct contact with the sun's rays. The importance of daylight consists of three basic dimensions' the field of health, the field of performance, and the feeling of well-being [1,2]. The "Indoor Generation" is taking the health risk of spending more time inside.…”

The Impact of Local Microclimate Boundary Conditions on Building Energy Performance

“…These phenomena generate the increase of the ambient temperature in urban areas by modifying local microclimate [20,21] and consequently building energy consumption. Increased urban temperatures, modified radiation balance, different wind speeds, and altered solar gains have a huge impact on building energy production and consumption [22,23]. For this reason, the use of commonly available typical weather data sets for predicting buildings' energy demand through numerical analysis, such as the widely used Typical Meteorological Year (TMY2) [24], the International Weather for Energy Calculation (IWEC) or the Test Reference Year (TRY), could leads to misleading decision-making process in quantifying energy efficiency in buildings located in different areas [25].…”