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Journal of Chinese
            Architecture and Urbanism                                                Sustainability of courtyard building






















            Figure 24. Modified courtyard building. Source: Drawing by Chuan He.
            Abbreviation: HVAC: Heating, ventilation, and air conditioning.











                                                               Figure 27. Monthly energy use after modification. Source: Drawing by
                                                               Chuan He.
                                                               Abbreviation: AHU: Air handling unit.







            Figure 25. Solar tube. Source: Drawing by Chuan He









                                                               Figure 28. Total cost after modification. Source: Drawing by Chuan He.
                                                               Abbreviation: AHU: Air handling unit.

                                                                 At the same time, it can be observed from the evaluation
                                                               process that systems such as Green Star are not entirely
                                                               suitable for the evaluation of historical buildings. However,
            Figure 26. Total energy consumption after modification. Source:   modifications can be made to the original criteria to develop
            Drawing by Chuan He.                               a set of tools tailored for assessing historical buildings.
            Abbreviation: AHU: Air handling unit.
                                                               7. Conclusion
            Figures 26  and 27. The energy consumption is reduced
            by 21,415 kWh/year. In April, May, and October, the   The present study evaluates the sustainability of the Chinese
            need for heating has been eliminated, and there is no   historical courtyard building represented by the Flag
            need for cooling throughout the year. After optimization,   Stall building in Chongren town. It focuses on materials,
            the  total energy cost is $1,961/year,  as  illustrated  in   IEQ, energy, transport, water, emissions, aesthetics, and
            Figure 28, representing a reduction of 52.2% in annual   ambiance. BIM technology and the Green Star rating tool
            costs.                                             were used for the evaluation. The purpose of the study is


            Volume 6 Issue 3 (2024)                         16                       https://doi.org/10.36922/jcau.3187
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