A whole building life-cycle assessment methodology and its application for carbon footprint analysis of U.S. commercial buildings

IF 2.2 4区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Journal of Building Performance Simulation Pub Date : 2022-09-02 DOI:10.1080/19401493.2022.2107071

Hao Zhang, Jie Cai, J. Braun

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引用次数: 1

Abstract

This paper presents a holistic building life-cycle assessment methodology that estimates the embodied and operational global warming potentials (GWPs) of a building covering the envelope, mechanical and lighting systems. The methodology relies on EnergyPlus to generate the use-phase energy consumption for any given building and incorporates a streamlined procedure to extract construction materials, which are used for building envelope GWP analysis. Embodied GWP accounting was performed for a representative packaged electric cooling and gas heating system and three types of lighting technologies, i.e., incandescent, compact fluorescent (CFL) and light-emitting diode (LED). The methodology was applied for carbon footprint analysis of five U.S. Department of Energy commercial building prototypes across seven climate locations. The results show that the operation phase has a dominant contribution (more than 74%) on the overall building environmental impact. LED and CFL lighting result in 45% whole-building energy consumption and 35% GWP reductions compared to incandescent lights.

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建筑全生命周期评价方法及其在美国商业建筑碳足迹分析中的应用

本文提出了一种全面的建筑生命周期评估方法，该方法可以估计建筑物包括围护结构、机械和照明系统的实际和实际全球变暖潜能值(GWPs)。该方法依靠EnergyPlus为任何给定的建筑生成使用阶段的能耗，并结合了一个简化的程序来提取建筑材料，用于建筑围护结构的GWP分析。具体的全球变暖潜能值核算是针对一个具有代表性的封装电制冷和燃气加热系统以及三种类型的照明技术，即白炽灯、紧凑型荧光灯(CFL)和发光二极管(LED)。该方法被应用于七个气候地点的五个美国能源部商业建筑原型的碳足迹分析。结果表明，运行阶段对整体建筑环境影响的贡献占主导地位(超过74%)。与白炽灯相比，LED和CFL照明节省了45%的整体建筑能耗和35%的全球升温潜能值。

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来源期刊

Journal of Building Performance Simulation CONSTRUCTION & BUILDING TECHNOLOGY-

CiteScore

5.50

自引率

12.00%

发文量

审稿时长

12 months

期刊介绍： The Journal of Building Performance Simulation (JBPS) aims to make a substantial and lasting contribution to the international building community by supporting our authors and the high-quality, original research they submit. The journal also offers a forum for original review papers and researched case studies We welcome building performance simulation contributions that explore the following topics related to buildings and communities: -Theoretical aspects related to modelling and simulating the physical processes (thermal, air flow, moisture, lighting, acoustics). -Theoretical aspects related to modelling and simulating conventional and innovative energy conversion, storage, distribution, and control systems. -Theoretical aspects related to occupants, weather data, and other boundary conditions. -Methods and algorithms for optimizing the performance of buildings and communities and the systems which service them, including interaction with the electrical grid. -Uncertainty, sensitivity analysis, and calibration. -Methods and algorithms for validating models and for verifying solution methods and tools. -Development and validation of controls-oriented models that are appropriate for model predictive control and/or automated fault detection and diagnostics. -Techniques for educating and training tool users. -Software development techniques and interoperability issues with direct applicability to building performance simulation. -Case studies involving the application of building performance simulation for any stage of the design, construction, commissioning, operation, or management of buildings and the systems which service them are welcomed if they include validation or aspects that make a novel contribution to the knowledge base.