Where is the effective control range of exhaust hoods? Airflow suction envelope determination and its performance evaluation

IF 7.1 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Building and Environment Pub Date : 2025-05-09 DOI:10.1016/j.buildenv.2025.113154

Mingyao Ma , Xiawei Luo , Yukun Xu , Bin Li , Jiahua Wang , Jingjing Pei , Jun Gao

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引用次数: 0

Abstract

Under the existing confluence theory framework, it is a challenge to identify and optimize the effective suction range of range hoods with non-simple structures. This work proposes an innovative Velocity Threshold-Based Streamline Envelope Reconstruction (VTSER) method algorithm to determine the effective suction range of range hood. The algorithm constructs a smooth and high-precision airflow suction envelope by identifying boundary points based on a predefined velocity threshold and reconstructing the surface. The feasibility and accuracy of the method are verified by experimental measurements and data analysis in a real kitchen. Two evaluation indicators, envelope volume and accessible length, are determined to comprehensively evaluate the performance of range hoods with different structures. Orthogonal analysis shows that installation distance, distance from the wall, chamber thickness, and baffle angle are important factors affecting envelope volume; distance from the wall, baffle area, suction area, and installation distance are important factors affecting accessible length. Finally, a single factor analysis is further performed to find a better configuration of structural parameters for envelope optimization. This work provides an innovative tool with both theoretical significance and practical engineering value for optimizing the performance of range hoods. Ultimately, it will improve indoor air quality and promote a healthier living environment.

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排烟罩的有效控制范围在哪里？气流吸力包线测定及其性能评价

在现有的合流理论框架下，非简单结构抽油烟机有效吸油范围的识别和优化是一个挑战。本文提出了一种基于速度阈值的流线包络重建（VTSER）算法来确定抽油烟机的有效吸入范围。该算法基于预定义的速度阈值识别边界点，重构表面，构建光滑高精度的气流吸力包络。通过实际厨房的实验测量和数据分析，验证了该方法的可行性和准确性。确定包络体积和可达长度两个评价指标，综合评价不同结构抽油烟机的性能。正交分析表明，安装距离、离壁距离、室厚、挡板角度是影响围护结构体积的重要因素；离墙距离、挡板面积、吸力面积、安装距离是影响可达长度的重要因素。最后，进一步进行单因素分析，以找到更好的结构参数配置进行包络优化。本研究为抽油烟机性能优化提供了一种既有理论意义又有实际工程价值的创新工具。最终，它将改善室内空气质量，促进更健康的生活环境。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Building and Environment 工程技术-工程：环境

CiteScore

12.50

自引率

23.00%

发文量

1130

审稿时长

27 days

期刊介绍： Building and Environment, an international journal, is dedicated to publishing original research papers, comprehensive review articles, editorials, and short communications in the fields of building science, urban physics, and human interaction with the indoor and outdoor built environment. The journal emphasizes innovative technologies and knowledge verified through measurement and analysis. It covers environmental performance across various spatial scales, from cities and communities to buildings and systems, fostering collaborative, multi-disciplinary research with broader significance.