共查询到20条相似文献,搜索用时 62 毫秒
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本文应用空调负荷计算软件和全年能耗分析软件,分别用16种不同传热系数和遮阳系数的玻璃对4个气候区的4栋办公建筑进行采暖空调负荷能耗模拟计算。结果表明,在选择玻璃时,严寒地区应注重传热系数,寒冷地区应同时注重传热系数和遮阳系数,夏热冬冷地区及夏热冬暖地区应注重遮阳系数。 相似文献
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选取工程中常用的16种不同类型的玻璃幕墙,对上海地区的典型办公建筑建立能耗分析模型,分析了96个模型的能耗变化情况。结果表明,对上海市办公建筑从降低建筑年空调总能耗角度,应研究玻璃幕墙的传热系数与遮阳系数的合理组合,而不是追求某一指标的最优。 相似文献
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Payam Delgoshaei Mohammad Heidarinejad Ke Xu Joshua R. Wentz Parhum Delgoshaei Jelena Srebric 《Building Simulation》2017,10(4):447-458
This paper considers pre-retrofit and post-retrofit lighting energy end-use of two sub-metered office spaces. Building lighting retrofits are typically installed to reduce energy consumption and operational costs of buildings. This traditionally includes replacing lights and introducing Building Management System (BMS). Through this process, an occupant’s ability to override new computerized controls could be compromised, which can dramatically affect the overall success of the project. Therefore, the analysis focuses on the effectiveness of the lighting retrofit, influence of the BMS upgrade, occupant behavior, and the lessons learned. The analysis comprises three different phases including one pre-retrofit and two post-retrofit phases. Each of the retrofit phases lasted approximately one year, leading to the monitoring of three years of sub-metered lighting energy end-use. The results showed that when the occupants had access to the lighting switches while BMS managed the operational lighting schedule, the office area with the responsible occupant saved 23.2% compared to the pre-retrofit phase. For the second lighting retrofit phase when the occupants did not have access to the light switches, the lighting schedule operated for more than two hours after the typical work day and the occupant was not able to turn off the lights upon departure. It should be noted that there are limited numbers of studies that consider three years sub-metered lighting retrofit data with the presented granularities in this study. Similar lighting retrofit projects could benefit from the findings of this study. Finally, the results of this sub-metered lighting data could address uncertainty in the selection of lighting power density and associated schedules of building energy simulations. 相似文献
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从建筑能耗统计工作的背景及意义入手,通过对太原市政府机关办公建筑能耗进行统计,对其能耗统计结果进行了系统的分析,为制定节能对策提供了依据,进而达到节能降耗的目的。 相似文献
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Based on building energy and indoor environment simulations, this study uses a recently developed method relying on Bayesian Network theory to estimate and compare the consequences for occupant performance and energy consumption of applying temperature criteria set according to the adaptive model of thermal comfort and the more conventional PMV model. Simulations were carried out for an example building with two configurations (with and without mechanical cooling) located in tropical, subtropical, and temperate climate regions. Even though indoor temperatures differed significantly between building configurations, especially in the tropical climate, the estimated performance differed only modestly between configurations. However, energy consumption was always lower in buildings without mechanical cooling, particularly so in the tropical climate. 相似文献
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办公楼中庭的节能技术设计,对于降低能耗,改善环境品质,促进可持续发展有着重要意义。本文就办公楼节能技术设计的策略进行探讨,探索办公楼中庭合理的设计手法和技术措施。 相似文献