Development of rooftop photovoltaic models to support urban building energy modeling

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2024-11-08 DOI:10.1016/j.apenergy.2024.124811

Zhiyuan Wang , Jingjing Yang , Guangchen Li , Chengjin Wu , Rongpeng Zhang , Yixing Chen

{"title":"Development of rooftop photovoltaic models to support urban building energy modeling","authors":"Zhiyuan Wang , Jingjing Yang , Guangchen Li , Chengjin Wu , Rongpeng Zhang , Yixing Chen","doi":"10.1016/j.apenergy.2024.124811","DOIUrl":null,"url":null,"abstract":"<div><div>Developing the rooftop photovoltaic (PV) system was beneficial to generate electricity and reduce carbon emissions in buildings. This paper presented the rooftop PV modeling method to support urban building energy modeling (UBEM) using the prototype UBEM method and the building-by-building UBEM method. The PV modeling method was developed, which was capable for buildings with rectangular flat rooftops, pitched rooftops, and arbitrary-shape flat rooftops. The main layout configuration parameters of the rooftop PV can be customized, including the PV dimension, tilt angle, azimuth angle, number of stacked rows, and the interrow spacing of panels. A district in Changsha, China, was selected as the case study, where basic building information was collected, including the building type, building footprint, year built, and the number of stories. The results showed that the PV models can be successfully added to all 5717 buildings with arbitrary-shape flat rooftops through manual inspection. When the interrow spacing was larger than 1 m, with the decrease of interrow spacing, the power generation increased because of the larger PV installation area, even if the self-shading impact increased. The largest PV power generation was 110.81 kWh/m<sup>2</sup> and 94.00 kWh/m<sup>2</sup> per roof area in Changsha when using the prototype UBEM method and the building-by-building UBEM method. The power generation using the building-by-building UBEM method was 15.17 % less than using the prototype UBEM method because the power generation due to shading from surrounding buildings decreased by 5.57 %, and the PV installation area decreased by 10.00 %.</div></div>","PeriodicalId":246,"journal":{"name":"Applied Energy","volume":"378 ","pages":"Article 124811"},"PeriodicalIF":10.1000,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0306261924021949","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Developing the rooftop photovoltaic (PV) system was beneficial to generate electricity and reduce carbon emissions in buildings. This paper presented the rooftop PV modeling method to support urban building energy modeling (UBEM) using the prototype UBEM method and the building-by-building UBEM method. The PV modeling method was developed, which was capable for buildings with rectangular flat rooftops, pitched rooftops, and arbitrary-shape flat rooftops. The main layout configuration parameters of the rooftop PV can be customized, including the PV dimension, tilt angle, azimuth angle, number of stacked rows, and the interrow spacing of panels. A district in Changsha, China, was selected as the case study, where basic building information was collected, including the building type, building footprint, year built, and the number of stories. The results showed that the PV models can be successfully added to all 5717 buildings with arbitrary-shape flat rooftops through manual inspection. When the interrow spacing was larger than 1 m, with the decrease of interrow spacing, the power generation increased because of the larger PV installation area, even if the self-shading impact increased. The largest PV power generation was 110.81 kWh/m² and 94.00 kWh/m² per roof area in Changsha when using the prototype UBEM method and the building-by-building UBEM method. The power generation using the building-by-building UBEM method was 15.17 % less than using the prototype UBEM method because the power generation due to shading from surrounding buildings decreased by 5.57 %, and the PV installation area decreased by 10.00 %.

查看原文本刊更多论文

开发屋顶光伏模型，支持城市建筑能源建模

开发屋顶光伏（PV）系统有利于发电和减少建筑物的碳排放。本文介绍了屋顶光伏建模方法，利用原型 UBEM 方法和逐栋建筑 UBEM 方法支持城市建筑能源建模（UBEM）。所开发的光伏建模方法适用于矩形平屋顶、坡屋顶和任意形状平屋顶的建筑。屋顶光伏的主要布局配置参数可以自定义，包括光伏尺寸、倾斜角、方位角、叠加行数和电池板的行间距。研究选择了中国长沙的一个地区作为案例，收集了建筑的基本信息，包括建筑类型、建筑占地面积、建造年份和层数。结果表明，通过人工检测，5717 栋任意形状的平屋顶建筑都能成功添加光伏模型。当间距大于 1 米时，随着间距的减小，光伏安装面积增大，即使自遮阳影响增加，发电量也会增加。在长沙，采用原型 UBEM 法和逐栋 UBEM 法时，每个屋顶面积的最大光伏发电量分别为 110.81 kWh/m2 和 94.00 kWh/m2。采用逐栋建筑物 UBEM 方法的发电量比采用原型 UBEM 方法的发电量减少了 15.17%，原因是周围建筑物遮挡造成的发电量减少了 5.57%，光伏安装面积减少了 10.00%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.