检索结果-南通市图书馆

An algorithm for calculating fresh air age in central ventilation system

Science China(Technological Sciences) 2003年第2期46卷 182-190页

作者：李先庭李冬宁窦春鹏 Department of Building Science School of Architecture Tsinghua University

Fresh air age is an important index to evaluate indoor environment. The conventional method for measuring or calculating fresh air age is only suitable for simple ventilation systems and not for central ven-tilation systems. In this paper, an algorithm for calculating fresh air age in central ventilation system is pre-sented, which is based on the analysis of air flow in duct and air mixing. An example is given to illustrate the algorithm. The fresh air age in every ventilated room and duct can be acquired after all rooms and duct are directly calculated in turn without iteration. The algorithm is suitable for different central ventilation sys-tems.

关键词： ventilation, indoor air quality (IAQ), fresh air age, algorithm.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Thermal Management of Vehicle Cabins,External Surfaces,and Onboard Electronics:An Overview

引用

Engineering 2019年第5期5卷 954-969页

作者： Garrett J.Marshall Colin P.Mahony Matthew J.Rhodes Steve R.Daniewicz Nicholas Tsolas Scott M.Thompson Center for Advanced Vehicular Systems Mississippi State UniversityMississippi StateMS 39762USA Department of Mechanical Engineering The University of AlabamaTuscaloosaAL 35487USA Department of Mechanical Engineering Auburn UniversityAuburnAL 36849USA

Reducing heat accumulation within vehicles and ensuring appropriate vehicular temperature levels can lead to enhanced vehicle fuel economy,range,reliability,longevity,passenger comfort,and *** in vehicle thermal management remain key as new technologies,consumer demand,societal concerns,and government regulations emerge and *** study summarizes several recent advances in vehicle thermal management technology and modeling,with a focus on three key areas:the cabin,electronics,and exterior components of ***-related topics covered include methods for reducing thermal loads and improving heating,ventilation,and air-conditioning(HVAC)systems;and advancements in window glazing/tinting and vehicle surface *** the thermal management of electronics,including batteries and insulated-gate bipolar transistors(IGBTs),active and passive cooling methods that employ heat pipes,heat sinks,jet impingement,forced convection,and phase-change materials are ***,efforts to model and enhance the heat transfer of exterior vehicular components are reviewed while considering drag/friction forces and environmental *** advances in the field of vehicle thermal management,challenges still exist;this article provides a broad summary of the major issues,with recommendations for further study.

关键词： Vehicle design Automotive engineering Electronics packaging Heat pipes Climate control Heating, ventilation, and air-conditioning Battery cooling Thermal soak

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：