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Simulation-Based Evaluation of High-Rise Residential Building Thermal Resilience 基于仿真的高层住宅建筑热弹性评估
有一种趋势是,高层住宅建筑往往有很大的地板到天花板的玻璃区域。在大多数情况下,这些建筑依靠机械系统来保持舒适,这是因为玻璃的绝缘性能差,太阳透射率高。在夏季,它们容易因高太阳能利用率而过热;冬季,由于表面温度低,隔热玻璃和其他立面组件的热量损失高,它们容易产生热不适。 因此,这类建筑容易发生电力故障、机械系统故障和需求响应策略延长。此外,这些建筑在正常运行期间可能会感到不舒服,能耗高。本文介绍了用模拟方法评估建筑物恢复力的方法学。使用两个指标对建筑弹性进行量化:热自主性和被动生存能力。在加拿大多伦多进行了一项案例研究,以评估各种被动设计策略对提高恢复力的效果。 结果表明,在没有乘员相互作用的情况下,热自主性非常差。此外,研究结果表明,在电源或系统故障的情况下,在保持舒适性方面,适应性机会至少与建筑开发设计同等重要。引文:2016年冬季会议,佛罗里达州奥兰多,2016年交易,第122卷第。1.
There is a trend toward high-rise residential buildingswith large—often floor-to-ceiling—glazed areas. In mostclimates, these buildings are reliant on mechanical systems tomaintain comfort as a result of the poor insulating propertiesand high solar transmittance of the glazing. In the summer theyare prone to overheating from high solar gains; in the winterthey are prone to thermal discomfort because of low surfacetemperatures and high heat loss through poorly insulated glazingand other façade components. Thus, such buildings arevulnerable to power failures, mechanical system failures, andextended demand response strategies. Furthermore, thesebuildings can be uncomfortable and have high energyconsumption during normal operation. This paper describes amethodology to evaluate building resilience using simulationmethods. Building resilience was quantified using two metrics:thermal autonomy and passive survivability. A Toronto,Canada-based case study was performed to assess the effect ofvarious passive design strategies to improve resilience. Theresults showed that thermal autonomy was very poor withoutoccupant interaction. Furthermore, the results suggest thatadaptive opportunities are at least as important as buildingenvelope design with regards to maintaining comfort in theevent of power or system failure.
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