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      EFFECT OF A NOVEL INTERNAL ROLLER SHADING SYSTEM ON ENERGY PERFORMANCE

      1

      Journal of Green Building

      College Publishing

      building energy, solar shading, roller shades, indoor thermal comfort

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          Abstract

          The purpose of this research is to investigate the impact of movable solar shading on energy performance in subtropical regions of China. An office building retrofitted with a novel internal roller shading system consisting of two shading layers was selected to carry out field measurements and numerous computer simulations were conducted in order to quantify the energy saving performance of this solar shading system, which was further compared with commonly used Low-E windows and regular fabric roller shades. The results show that the solar transmittance ratio is only 1.3% to 7% depending on used solar shading layers in summer and there is almost no negative impact on heating season in winter. The room base temperature reduction ranges from 4–14°C in summer, indicating a significant indoor thermal performance improvement. Meanwhile, the total energy saving for this shading system is 26.06%, 24.42% and over 50%, respectively, compared to Low-E windows, fabric roller shades and the bare window case. Thus, this novel solar shading system is a high energy saving measure and can be widely used in a subtropical zone.

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          Most cited references 23

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          EnergyPlus: creating a new-generation building energy simulation program

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            The impact of shading design and control on building cooling and lighting demand

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              A study on optimum insulation thicknesses of external walls in hot summer and cold winter zone of China

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Fall 2014
                : 9
                : 4
                : 125-146
                Author notes

                1.Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo, China. Email: yaojian@ 123456nbu.edu.cn

                Article
                jgb.9.4.125
                10.3992/1943-4618-9.4.125
                ©2014 by College Publishing. All rights reserved.
                Page count
                Pages: 22
                Product
                Categories
                RESEARCH ARTICLES

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