CN109002950A - 一种基于室外风场概率分布的建筑自然通风评价方法 - Google Patents

一种基于室外风场概率分布的建筑自然通风评价方法 Download PDF

Info

Publication number
CN109002950A
CN109002950A CN201710421669.1A CN201710421669A CN109002950A CN 109002950 A CN109002950 A CN 109002950A CN 201710421669 A CN201710421669 A CN 201710421669A CN 109002950 A CN109002950 A CN 109002950A
Authority
CN
China
Prior art keywords
wind
building
wind speed
ventilation
various seasonal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710421669.1A
Other languages
English (en)
Other versions
CN109002950B (zh
Inventor
庄惟敏
高庆龙
司鹏飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN201710421669.1A priority Critical patent/CN109002950B/zh
Publication of CN109002950A publication Critical patent/CN109002950A/zh
Application granted granted Critical
Publication of CN109002950B publication Critical patent/CN109002950B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0639Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/08Construction

Landscapes

  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Engineering & Computer Science (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • General Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Marketing (AREA)
  • Tourism & Hospitality (AREA)
  • Physics & Mathematics (AREA)
  • Entrepreneurship & Innovation (AREA)
  • General Physics & Mathematics (AREA)
  • Development Economics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Primary Health Care (AREA)
  • General Health & Medical Sciences (AREA)
  • Game Theory and Decision Science (AREA)
  • Operations Research (AREA)
  • Quality & Reliability (AREA)
  • Ventilation (AREA)

Abstract

本发明公开了一种基于室外风场概率分布的建筑自然通风评价方法,其通过获取不同季节各个风向和风速的频数基础数据,并建立不同季节16个罗盘方向的风速频率计算模型,借助计算机模拟的手段,对建筑进行风环境模拟计算,从而实现对建筑自然通风效果进行评价,为建筑规划布局及设计提供参考依据。

Description

一种基于室外风场概率分布的建筑自然通风评价方法
技术领域
本发明属于建筑节能技术领域,特别涉及一种基于室外风场概率分布的建筑自然通风评价方法。
背景技术
自然通风是依靠室外风力造成的风压和室内外空气温度差造成的热压,促使空气流动,使得建筑室内外空气交换。自然通风可以保证建筑室内获得新鲜空气,带走多余的热量,又不需要消耗动力,节省能源,节省设备投资和运行费用,因而是一种经济有效的通风方法。由于自然通风不仅可以有效的去除建筑室内热量,保证良好的空气品质,同时也可以缩短机械通风系统或空气调节系统的运行时间,因此被认为是一种重要的被动式节能技术。
利用风压做驱动力的称风压通风,利用热压做驱动力的称热压通风。室外自然风吹向建筑物时,在建筑物的迎风面形成正压区,背风面形成负压区,利用两者之间的压差进行室内通风,就是风压通风。而热压通风则是因为室内外温度差引起空气的密度差而产生的空气流动。
在建筑规划布局和建筑单体设计时,应充分考虑建筑的自然通风。由于建筑自然通风效果与当地风环境条件、场地环境、建筑布局、室内平面划分等众多因素相关,通常需要借助计算机模拟的手段,才能对自然通风相关的评价指标进行量化的计算和评价。
建筑自然通风评价常采用冬季、过渡季和夏季在典型风向和风速条件下,对建筑自然通风效果进行评价。事实上,室外空气流动存在很大的随机性,风速和风向时时刻刻都在发生变化,仅用典型风向和风速作为分析工况,难以完整、全面、量化地评价室外通风效果。
发明内容
本发明的目的在于:针对上述存在的问题,提供一种基于室外风场概率分布的建筑自然通风评价方法。
本发明技术的技术方案实现方式:一种基于室外风场概率分布的建筑自然通风评价方法,其特征在于:包括以下步骤:
a)获取不同季节各个风向和风速的频数基础数据,所述不同季节主要是冬季、夏季及过渡季节;
b)建立不同季节16个罗盘方向的风速频率计算模型:
式中:gn(v)为风向频率,fn(v)为对应段时间内出现n方向风并且风速大小为v的次数,每隔一定间隔时间记录一次,c为静风次数,每隔一定间隔时间记录一次,v0为可计量的最小风速,v1为可计量的最大风速;
c)将风向、风速二元随机变量概率模型,编译UDF输入CFD软件,对建筑进行风环境模拟计算;
d)输出空气流速、换气次数、气流分布的室内环境评价参数;
e)对标室内环境标准,给出自然通风效果评价结果。
本发明通过获取不同季节各个风向和风速的频数基础数据,并建立不同季节16个罗盘方向的风速频率计算模型,借助计算机模拟的手段,对建筑进行风环境模拟计算,从而实现对建筑自然通风效果进行评价,为建筑规划布局及设计提供参考依据。
附图说明
图1是本发明的评价方法原理图。
具体实施方式
下面结合附图,对本发明作详细的说明。
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明技术进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定发明。
实施例:如图1所示,一种基于室外风场概率分布的建筑自然通风评价方法,包括以下步骤:
a)获取不同季节各个风向和风速的频数基础数据,所述不同季节主要是冬季、夏季及过渡季节。
b)建立不同季节16个罗盘方向的风速频率计算模型:
式中:gn(v)为风向频率,fn(v)为对应段时间内出现n方向风并且风速大小为v的次数,每隔一定间隔时间记录一次,c为静风次数,每隔一定间隔时间记录一次,v0为可计量的最小风速,v1为可计量的最大风速。
c)将风向、风速二元随机变量概率模型,编译UDF输入CFD软件,对建筑进行风环境模拟计算。
d)输出空气流速、换气次数、气流分布的室内环境评价参数。
e)对标室内环境标准,给出自然通风效果评价结果。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。

Claims (1)

1.一种基于室外风场概率分布的建筑自然通风评价方法,其特征在于:包括以下步骤:
a)获取不同季节各个风向和风速的频数基础数据,所述不同季节主要是冬季、夏季及过渡季节;
b)建立不同季节16个罗盘方向的风速频率计算模型:
式中:gn(v)为风向频率,fn(v)为对应段时间内出现n方向风并且风速大小为v的次数,每隔一定间隔时间记录一次,c为静风次数,每隔一定间隔时间记录一次,v0为可计量的最小风速,v1为可计量的最大风速;
c)将风向、风速二元随机变量概率模型,编译UDF输入CFD软件,对建筑进行风环境模拟计算;
d)输出空气流速、换气次数、气流分布的室内环境评价参数;
e)对标室内环境标准,给出自然通风效果评价结果。
CN201710421669.1A 2017-06-07 2017-06-07 一种基于室外风场概率分布的建筑自然通风评价方法 Active CN109002950B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710421669.1A CN109002950B (zh) 2017-06-07 2017-06-07 一种基于室外风场概率分布的建筑自然通风评价方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710421669.1A CN109002950B (zh) 2017-06-07 2017-06-07 一种基于室外风场概率分布的建筑自然通风评价方法

Publications (2)

Publication Number Publication Date
CN109002950A true CN109002950A (zh) 2018-12-14
CN109002950B CN109002950B (zh) 2021-11-09

Family

ID=64573041

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710421669.1A Active CN109002950B (zh) 2017-06-07 2017-06-07 一种基于室外风场概率分布的建筑自然通风评价方法

Country Status (1)

Country Link
CN (1) CN109002950B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110263369A (zh) * 2019-05-10 2019-09-20 珠海市公共气象服务中心(珠海市防雷所)(珠海市突发事件预警信息发布中心) 基于气候分析和数值模拟的建筑表面抗风等级设计方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010210232A (ja) * 2010-03-29 2010-09-24 Asahi Kasei Homes Co 建物の換気量及び温度予測システム
CN102565879A (zh) * 2011-08-04 2012-07-11 南京信息工程大学 一种风资料的处理方法
CN104778365A (zh) * 2015-04-15 2015-07-15 天津大学 一种绿色建筑群室外风环境质量的综合指数评价方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010210232A (ja) * 2010-03-29 2010-09-24 Asahi Kasei Homes Co 建物の換気量及び温度予測システム
CN102565879A (zh) * 2011-08-04 2012-07-11 南京信息工程大学 一种风资料的处理方法
CN104778365A (zh) * 2015-04-15 2015-07-15 天津大学 一种绿色建筑群室外风环境质量的综合指数评价方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
卜震: "基于统计分析的室外通风环境综合评价方法及其应用", 《建筑科学》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110263369A (zh) * 2019-05-10 2019-09-20 珠海市公共气象服务中心(珠海市防雷所)(珠海市突发事件预警信息发布中心) 基于气候分析和数值模拟的建筑表面抗风等级设计方法
CN110263369B (zh) * 2019-05-10 2023-12-29 珠海市公共气象服务中心(珠海市防雷所)(珠海市突发事件预警信息发布中心) 基于气候分析和数值模拟的建筑表面抗风等级设计方法

Also Published As

Publication number Publication date
CN109002950B (zh) 2021-11-09

Similar Documents

Publication Publication Date Title
Hughes et al. A study of wind and buoyancy driven flows through commercial wind towers
Aldawoud Windows design for maximum cross-ventilation in buildings
Mak et al. A numerical simulation of wing walls using computational fluid dynamics
O’Connor et al. A study of passive ventilation integrated with heat recovery
CN110489835B (zh) 基于Ansys软件的自然通风与墙体蓄热耦合模拟方法
Khaleghi et al. Analysis of unsteady airflow in a subway station influenced by train movement
Reynafarje et al. Simulation and validation of the airflow inside a naturally ventilated greenhouse designed for tropical conditions
Wang et al. Dynamic simulation of thermal load and energy efficiency in poultry buildings in the cold zone of China
Taebnia et al. Air distribution and air handling unit configuration effects on energy performance in an air-heated ice rink arena
CN107506516A (zh) 一种通信机房流场模型建立与分析方法和系统
Khan et al. Energy-saving potential of a radiant cooling system in different climate zones of India
Bayoumi Improving Indoor Air Quality in Classrooms via Wind‐Induced Natural Ventilation
CN109002950A (zh) 一种基于室外风场概率分布的建筑自然通风评价方法
Mohammadi et al. Effect of resilient architecture in an ancient windmill in the Sistan region on natural ventilation enhancement
Li et al. Comprehensive evaluation of combining CFD simulation and entropy weight to predict natural ventilation strategy in a sliding cover solar greenhouse
Aynsley How much do you need to know to effectively utilize large ceiling fans?
Kuznetsov et al. Influence of placement and height of high-rise buildings on wind pressure distribution and natural ventilation of low-and medium-rise buildings
Wang et al. Genetic algorithm based building form optimization study for natural ventilation potential
CN115455846A (zh) 一种换热器系统的换热因子的确定方法、介质及系统
Carmeliet et al. Moisture phenomena in whole building performance prediction
Gu et al. Structure optimization of an air-cooling system platform at a large power plant
Ward et al. Environmentally active buildings: the controls challenge
Zhao et al. Numerical study on the performance of a natural draft cooling tower with water-cooled collectors
Hsie et al. A GIS-based method for determining natural ventilation potentials and urban morphology
Chang et al. Quantitative prediction of traffic pollutant transmission into buildings

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant