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首页> 外文期刊>Journal of green building >A STRATEGY FOR ENERGY PERFORMANCE ANALYSIS AT THE EARLY DESIGN STAGE: PREDICTED VS. ACTUAL BUILDING ENERGY PERFORMANCE
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A STRATEGY FOR ENERGY PERFORMANCE ANALYSIS AT THE EARLY DESIGN STAGE: PREDICTED VS. ACTUAL BUILDING ENERGY PERFORMANCE

机译：早期设计阶段能源绩效分析策略：预测与VS.实际建筑能源性能

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摘要

Developments in information technology are providing methods to improve current design practices, where uncertainties about various design elements can be simulated and studied from the design inception. Energy and thermal simulations, improved design representations and enhanced collaboration using digital media are increasingly being used. With the expanding interest in energy-efficient building design, whole building energy simulation programs are increasingly employed in the design process to help architects and engineers determine which design strategies save energy and improve building performance. The purpose of this research was to investigate the potential of these programs to perform whole building energy analysis during the early stages of architectural design, and compare the results with the actual building energy performance. The research was conducted by simulating energy usage of a fully functional research laboratory building using two different simulation tools that are aimed for early schematic design. The results were compared with utility data of the building to identify the degree of closeness with which simulation results match the actual energy usage of the building. Results indicate that modeled energy data from one of the software programs was significantly higher than the measured, actual energy usage data, while the results from the second application were comparable, but did not correctly predict monthly energy loads for the building. This suggests that significant deviations may exist between modeled and actual energy consumption for buildings, and more importantly between different simulation software programs. Understanding the limitations and suitability of specific simulation programs is crucial for successful integration of performance simulations with the design process.
机译：信息技术的发展正在提供改进当前设计实践的方法，其中可以从设计成立中模拟和研究各种设计元素的不确定性。能量和热模拟，越来越多地使用改进的设计表示和使用数字媒体的增强协作。随着对节能建筑设计的扩大，整个建筑能源仿真计划越来越多地采用设计过程，以帮助建筑师和工程师确定哪些设计策略节省能源，提高建筑性能。本研究的目的是调查这些计划在建筑设计的早期阶段进行整个建筑能源分析的潜力，并将结果与​​实际建筑能量性能进行比较。该研究是通过使用旨在早期原理图设计的两种不同的模拟工具来模拟全功能研究实验室建筑的能量使用来进行的。将结果与建筑物的实用性数据进行比较，以确定仿真结果与建筑物的实际能量使用相匹配的接近程度。结果表明，来自其中一个软件程序的建模能量数据显着高于测量的实际能量使用数据，而第二种应用的结果是可比的，但没有正确预测建筑物的每月能量负荷。这表明建模和实际能耗之间可能存在显着的偏差，更重要的是在不同的模拟软件程序之间。了解特定模拟程序的局限性和适用性对于成功集成性能模拟与设计过程的限制至关重要。

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