研究目的
Investigating the improvements in the reliability, consistency and robustness of the genetic algorithm (GA) using hybridization with simulated annealing (SA) considering different cooling strategies in the SA for optimizing building fenestration and shading for climate-based daylight performance.
研究成果
The GA/SA_II hybrid method showed the best results among all different methods with the lowest standard deviation for the five runs, indicating significant improvement in the performance of the GA. The study highlights the importance of combinatory changes of all parameters together on the office daylight performance and suggests future studies to probe different cases with various independent parameters and objectives.
研究不足
The study's results are based on a limited number of simulations for each algorithm, and the stochastic nature of the optimization results suggests that a larger number of observations would lead to more robust comparisons. Additionally, the results based on sDA and ASE may not fully represent occupants' evaluation of the daylighting performance of the room.
1:Experimental Design and Method Selection:
The study compared the performance of GA, SA, and two hybrid GA/SA methods in optimizing an office room fenestration system for daylight performance. The independent variables were window dimensions and shading configurations, with sDA and ASE as assessment metrics.
2:Sample Selection and Data Sources:
The daylighting performance of an office space in Houston, TX, was analyzed using the corresponding TMY3-EPW file for Houston, TX.
3:List of Experimental Equipment and Materials:
Grasshopper, a parametric plugin for Rhinoceros, was used for parametric modelling. DIVA plugin for Grasshopper was used for daylighting performance assessment, based on Radiance and Daysim.
4:Experimental Procedures and Operational Workflow:
The study involved comparing the performance of GA and SA, then applying two hybrid GA/SA optimization methods to the same case. The comparative analysis was conducted to reveal differences in performance.
5:Data Analysis Methods:
The analysis was based on the mean values and variances of the objective function values of the best cases found in different methods.
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