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

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.

[1]  V. Ismet Ugursal,et al.  Effect of external shading on household energy requirement for heating and cooling in Canada , 2011 .

[2]  Chris T. Kiranoudis,et al.  Numerical simulation of air flow field in single-sided ventilated buildings , 2000 .

[3]  Till Pasquay,et al.  Natural ventilation in high-rise buildings with double facades, saving or waste of energy , 2004 .

[4]  Jan L.M. Hensen,et al.  State of the art in lighting simulation for building science: a literature review , 2012 .

[5]  Gon Kim,et al.  Advanced External Shading Device to Maximize Visual and View Performance , 2010 .

[6]  Fariborz Haghighat,et al.  Energy performance assessment of double-skin façade with thermal mass , 2010 .

[7]  Sooyoung Kim,et al.  Determining Photosensor Conditions of a Daylight Dimming Control System Using Different Double-skin Envelope Configurations , 2007 .

[8]  L Roche Summertime performance of an automated lighting and blinds control system , 2002 .

[9]  Monika Woloszyn,et al.  Three-dimensional simulation with a CFD tool of the airflow phenomena in single floor double-skin facade equipped with a venetian blind , 2005 .

[10]  武彦 福島 持続可能性(Sustainability)の要件 , 2006 .

[11]  Jinkyun Cho,et al.  A Case Study on Curtain-wall and Window Types of High-rise Residences in Korea for Improvement of Natural Ventilation , 2009 .

[12]  Ali GhaffarianHoseini,et al.  Intelligent Facades in Low-Energy Buildings , 2013 .

[13]  André De Herde,et al.  Greenhouse effect in double-skin facade , 2007 .

[14]  Seung-Bok Leigh,et al.  Indoor Air Flow Pattern in the Mixed-Use Apartment with Double Window System , 2013 .

[15]  Juan Zhou,et al.  A REVIEW ON APPLYING VENTILATED DOUBLE-SKIN FACADE TO BUILDINGS IN HOT-SUMMER AND COLD-WINTER ZONE IN CHINA , 2010 .

[16]  Dirk Saelens,et al.  On the influence of the inlet temperature in multiple-skin facade modeling , 2003 .

[17]  Kou Yu-de On Double- skin Facade , 2010 .

[18]  Wonjun Choi,et al.  Load characteristics and operation strategies of building integrated with multi-story double skin facade , 2013 .

[19]  Umberto Berardi,et al.  Daylighting in an atrium-type high performance house , 2014 .

[20]  Marlon Leão,et al.  Empirical thermal comfort evaluation of single and double skin façades , 2010 .

[21]  Bartosz Lomanowski,et al.  Implementation of Window Shading Models into Dynamic Whole-Building Simulation , 2008 .

[22]  Giorgio Baldinelli,et al.  Double skin facades for warm climate regions : Analysis of a solution with an integrated movable shading system , 2009 .

[23]  Marie-Claude Dubois,et al.  Impact of Shading Devices on Daylight Quality in Offices - Simulations with Radiance , 2001 .

[24]  Steve Sharples,et al.  Enhancing natural ventilation, thermal comfort and energy savings in high-rise residential buildings in Bangkok through the use of ventilation shafts , 2012 .

[25]  E. Gratia,et al.  Guidelines for improving natural daytime ventilation in an office building with a double-skin facade , 2007 .

[26]  Christoph F. Reinhart,et al.  Efficient calculation of daylight coefficients for rooms with dissimilar complex fenestration systems , 2008 .

[27]  N. Hamza Double versus single skin facades in hot arid areas , 2008 .

[28]  André De Herde,et al.  Natural cooling strategies efficiency in an office building with a double-skin facade , 2004 .

[29]  M. Glória Gomes,et al.  Gap inner pressures in multi-storey double skin facades , 2008 .

[30]  Cheol-Yong Jang,et al.  Thermal transmittance of window systems and effects on building heating energy use and energy efficiency ratings in South Korea , 2013 .

[31]  A. Laouadi,et al.  Complex fenestration systems: towards product ratings for indoor environment quality , 2007 .