کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8071119 1521391 2018 58 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimizing the insulation thickness of walls and roofs of existing buildings based on primary energy consumption, global cost and pollutant emissions
ترجمه فارسی عنوان
بهینه سازی ضخامت عایق دیوارها و سقف ساختمان های موجود بر اساس مصرف انرژی اولیه، هزینه های جهانی و انتشار آلاینده ها
کلمات کلیدی
بهینه ضخامت عایق، تکمیل پاکت ساختمان، معیار ارزیابی کلی، مدل بهینه سازی، ضریب وزن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
An optimization model used to determine the optimum insulation thickness (OIT) of walls and roofs of existing buildings was established. Primary energy saving ratio (PESR), global cost saving ratio (GCSR) and pollutant emission reduction ratio (PERR) were used as evaluation criteria. Least square method was used to fit the polynomials which indicated the relationship between annual air-conditioning demand and insulation thickness. An existing building was used as the basis of the case study. The average relative error on annual heating and cooling demand was 0.23% and 0.035%, respectively, which indicated the accuracy of both fitting polynomials. Four types of heat and cold sources were considered to be used for the case building, respectively. Sensitivity analysis was carried out to investigate the impact of economic and energy factors on the optimization results. Results showed that the OIT of walls and roofs could be obtained by using the optimization model. The OIT of walls and roofs, building performance indicators and overall evaluation criterion during building envelope retrofit depended on the weight coefficients of evaluation criteria and types of heat and cold sources. The impact of sensitivity factors on the optimization results for the four types of heat and cold sources were different.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 159, 15 September 2018, Pages 1132-1147
نویسندگان
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