A multi-layer approach for estimating the energy use intensity on an urban scale
A multi-layer approach for estimating the energy use intensity on an urban scale
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DOI：
10.1016/j.cities.2019.102467
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发表时间：
2019-12-01
期刊：
影响因子：
6.7
通讯作者：
Li, Baizhan
中科院分区：
文献类型：
--
作者：
Costanzo, Vincenzo;Yao, Runming;Li, Baizhan
各国政府正在规划他们的城市，根据不同的情况减少能源消耗和碳排放，同时保持良好的室内舒适条件，从而应对气候变化。需要一个强大而可靠的工具来估计城市的能源使用强度（EUI）。本文提出了一种新的自下而上的基于工程的多层方法，能够通过保留尽可能多的关于其复杂性的信息来分析各种规模的现有聚落的能源性能。这个过程包括i)创建城市区域的3D模型，ii)建立代表不同建筑特征的模板，如功能，建筑物的年龄范围和运营时间表，iii)运行动态热模拟，iv)在3D模型中显示EUI或总能源需求，这些模型可以进行后期处理以进行进一步分析。该方法根据不同的目的提供了灵活的模拟过程，在城市能源改造或新区规划的决策中特别有用。每小时的高分辨率结果将有利于能源效率战略的详细分析，以实现碳减排。以重庆市渝中区为例，对该方法的应用进行了论证。
Various governments are planning their cities to be climate responsive by reducing the energy consumption and carbon emissions according to different scenarios whilst maintaining good indoor comfort conditions. A robust and reliable tool that can estimate the Energy Use Intensity (EUI) of a city is required. This paper presents a new bottom-up engineering-based multi-layer approach able to analyse the energy performance of existing settlements of every size by retaining as much information as possible about their complexities. The process involves i) creating a 3D model of the urban area, ii) building up templates representing different building characteristics such as functions, the age-band of the buildings and operating schedules, iii) running dynamic thermal simulations and iv) displaying the EUI or total energy demand in the 3D model which can be post-processed for further analysis. This approach offers a flexible simulation process according to various purposes, which is particularly useful in decision-making for urban energy retrofitting or planning for new areas. The hourly high-resolution outcomes would benefit the detailed analysis of energy efficiency strategies in order to achieve carbon reduction. The application of this approach is demonstrated for the case of Yuzhong district in Chongqing municipality, China.