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Energy, Emissions and Economics (EEE) Impact Derivation and Applications for Energy Performance Calculations and Comparisons 能源、排放和经济(EEE)影响推导以及能源性能计算和比较的应用
几十年来,以最小的意外后果公平地衡量和比较技术和建筑能源性能一直是一项挑战。一个原因是,主要使用能源成本等单一指标来确定和比较不同选项的性能。随着人们越来越关注环境影响,能源成本等单一指标可能不完整或具有误导性。本文描述了一种基于与能源使用、排放和经济(EEE)影响相关的指标的相对评估来评估绩效的新方法。讨论了EEE影响方法在ASHRAE标准和其他能源性能比较中的应用和益处。 确定用于比较和决策的能源绩效是一项艰巨而复杂的技术和政策挑战。在试图实现另一个关键政策目标时,可能对一个主要目的公平的单一绩效指标可能是不公平的或误导性的。ASHRAE建筑能源标准,包括标准90.1、90.2、100和189.1,有一条性能路径,通过将单个技术性能比较汇总到整个建筑水平,将拟议设计与基线设计进行比较,通常是在整个建筑水平。这些标准中的每一个都使用不同的度量和方法来比较基准和拟议的建筑性能。 本文将说明使用这些方法和指标实现多个目标时面临的挑战。已经开发了一种新的绩效评估方法,该方法包含两个或多个指标,并能够在这些指标之间进行相对评估。本文描述了基于能源、排放和经济(EEE)影响与基准技术、系统或建筑进行比较的基本原理和方法。EEE影响方法提供了一个框架,用于公平处理提供相同能源服务的所有技术(例如,电、燃气或太阳能热水器),基于它们对选择指标的加权和聚合影响,以确定决策和比较的总体性能。 提供了使用一次能源、温室气体(GHG)排放和消费者经济指标的框架应用。强调了与参考技术相关的每种能源形式的相关指标相对估值的加权因子,以及使用EEE影响方法进行计算和比较的单一基线的重要性。引用:2019年冬季会议,佐治亚州亚特兰大,会议论文
Measuring and comparing technology and building energy performance equitably with minimum unintended consequences has been challenging for decades. One reason is the dominant use of a single metric such as energy cost to determine and compare performance of different options. With increased focus on environmental impacts, a single metric such as energy cost may be incomplete or misleading. This paper describes a new way to evaluate performance based on relative valuation of metrics associated with energy use, emissions, and economics (EEE) impacts. Application and benefits of the EEE impacts approach in ASHRAE standards and other energy performance comparisons are discussed. Determining energy performance for comparisons and decision making is a daunting and complex technical and policy challenge. A single performance metric that may be fair for one primary intent may be unfair or misleading when trying to achieve another key policy objective. ASHRAE building energy standards, including Standard 90.1, 90.2, 100, and 189.1, have a performance path that compares a proposed design to a baseline design, typically at a whole building level, by rolling up individual technology performance comparisons to the whole building level. Each of these standards uses different metrics and methodologies to compare baseline and proposed building performance. This paper will illustrate the challenges when using these methodologies and metrics to achieve multiple objectives. A new performance evaluation methodology has been developed that incorporates two or more metrics and enables relative valuation across the metrics. The paper describes the rationale and methodology for comparing options based on their energy, emissions, and economics (EEE) impacts compared to a baseline technology, system, or building. The EEE impacts methodology provides a framework for equitable treatment of all technologies that provide the same energy service (e.g., electric, gas, or solar water heaters) based on their weighted and aggregated impact on the metrics of choice to determine overall performance for decisions and comparisons. Application of the framework using primary energy resources, greenhouse gas (GHG) emissions, and consumer economics metrics is provided. Weighting factors for the relative valuation of the metrics of interest for each energy form relative to the reference technology are highlighted, along with the importance of a single baseline for calculations and comparisons using the EEE impacts methodology.
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