A qualitative ventilation model for prototype cavity structure

Creating a physical model structure that is able to simulate different ventilation scenarios is essential for improving the understanding of passive designs that are both sustainable and environmentally acceptable. The purpose of this investigation was to build a physical prototype model that could be heated from both the outside and inside to duplicate an occupied structure during the morning hours. This model was then used to provide information for two Computational Fluid Dynamic (CFD) models to firstly compare and then validate results obtained from experimental data. A sample of computational findings was initially presented in . This paper presents the experimental sections used to validate numerical simulation in and incorporates findings from . The experimental component consisted of approximately 80% of the overall investigation. The findings enabled a better scientific understanding of how a structure's thermal performance can be improved by mechanically forcing air (to simulate outside wind) inside to both lower and create an overall uniform internal air temperature distribution in a cavity enclosure. A chart-based model is proposed to qualitatively gauge the temperature inside a cavity enclosure for different ventilation scenarios

Bi-level programming subsidy design for promoting sustainable prefabricated product logistics

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A review on time estimation methods for post-earthquake damage repair of buildings

Time is one of the three defining factors of a construction project. Due to the uncertainty of earthquake damage repair projects, a more accurate time estimation method is required. This paper focuses on the adaptability of Bromilow’s time cost model (BTC model), critical path method, program evaluation and review technique (PERT) and Monte Carlo simulations to achieve this task. Monte Carlo method was identified as the best method out of methods above to estimate post-earthquake damages. Attributes such as accounting for uncertainty, use network diagrams, sequencing of work activities and current practical applications justify this suggestion. Further research is suggested to verify this theoretical suggestion