厨房通风空调系统设计新思路

针对已有的厨房空调通风系统设计中存在的问题而导致换气次数高、能量消耗过大等现象，提出了几点新的设计思路：根据厨房内污染物产生源的分布和厨房自身的运作特点，划分空调控制区和非控制区；以空气幕送风方式将室外新风直接送到炉灶周围，高效率地满足炉灶燃气燃烧需氧量要求，并利用风幕的空气动力控制污染物溢出，减少残留率；采用主、副送排风系统，以满足厨房在不同工作时段下空调系统节能的需要。     

某地下车库智能通风系统设计

介绍某地下车库的智能通风系统设计,该设计采用传统通风与射流诱导通风相结合的方式,计算其送风量和排风量,进行通风系统的设计以及风机选型.该车库采用智能型诱导通风控制系统,对其结构、软件设计及运行效果进行说明,证明该智能通风系统功能先进齐全,具有较高的实用价值.     

飞机座舱应用置换通风系统的节能分析

通过置换通风系统和混合通风系统的比较,阐述了置换通风系统的特点和优势.运用暖通空调领域设计置换通风系统的方法,并结合ISO7730 - 2005、ASHRAE62 - 1989和民航飞机相关标准对座舱通风的规定,以节能分析的方式得出了置换通风在飞机座舱通风系统应用上的节能优势.     

煤矿通风系统优化研究及应用

通风系统的设计关乎工作人员的生命安全,只有通风良好,保证矿井安全生产,才能保证煤矿井下的正常工作。基于此,分析了当前煤矿通风系统存在的问题,探讨了通风系统通风阻力的优化。     

风机在巷道系统中的优化设计

论述巷道通风系统的内部流态和巷道通风系统的工作原理及设计思路，结合桌矿井实际巷道，进行局部通风机的设计。结果证明设计基本能满足巷道通风要求。     

室内环境对排风道空气动力性能要求的研究

试验分析现有住宅厨房、卫生间排风道系统排风防止回流的主要型式，提出一种新型构造。同时通过试验和理论模型的对比，探讨住宅厨房、卫生间排风道系统量设计计算和指标。     

浅谈高层建筑空调通风设计

搞好高层建筑空调通风设计,应把握好设计对象,对空调通风系统进行正确的划分,优化设计,合理利用能源。设计空调水系统时,应综合考虑设备及管路系统的承压能力、空调分区、建筑型体等因素,合理地进行设计。 近几年来,我国高层建筑发展迅速,空调技术也随之取得很大的进步。本人通过实际工程设计,谈几点高层建筑空调通风设计的方法。     

厨房排烟通风量探讨

<正> 随着人们生活水平的逐渐提高,城镇居民对厨房排烟通风愈来愈加重视。这不仅是因为厨房的排烟与新鲜空气的补充是燃具安全工作的必要条件,而且也是居民防止室内污染,保障身心健康的有利措施。近几年来市场上涌现了多种型号及规格的厨房排烟装置。且排气量及     

置换通风的研究与应用现状

简述了置换通风的原理,回顾了置换通风应用的发展过程,总结了置换通风系统的优缺点,介绍了置换通风的设计方法和设计关键参数的确定,分析了置换通风的工作机理,介绍了置换通风的CFD研究,并指出置换通风是一种值得推荐的暖通空调方式。     

矿井通风仿真系统对煤矿通风系统的设计启示

针对煤矿通风系统中,设计基于矿井通风仿真系统,有效提高对矿井通风数据的管理效率,强化矿井通风的实时监控,实现对煤矿开采中矿井内通风情况的可视化三维监控,提高煤矿开采效率。将矿井通风仿真系统应用到煤矿通风系统中,具有实际的应用价值,能够有效改善矿井施工工况,确保空气流通,降低矿井施工中安全事故的发生,提升煤矿安全质量。     

城镇燃气站房通风设计

城镇燃气供应系统站房的常用的通风系统有四种形式。叙述了针对各类燃气站房自身特点,确定房间的日常通风风量,采用不同通风形式的设计要点。     

Experimental study for comparison of thermal comfort and air age between two combined ventilation systems with chilled ceiling considering occupant density

Due to the global spread of diseases and epidemics, the need to maintain a clean indoor atmosphere has received increasing attention in recent years. Therefore, there will be a need to clearly estimate and define the areas that affect human exposure to pollutants, taking into account the occupied density, which is the primary importance of this research. The capacity of the chilled ceiling combined with mixing ventilation and personal ventilation systems has been studied and compared to the chilled ceiling with mixing ventilation in terms of mean air age, temperature distribution, CO₂ concentration, and thermal efficiency, with the best flow rate of the proposed system considering the occupied density in a thermally insulated office room experimentally in the climate of Iraq (Hilla, a hot and dry climate). Twelve tests were performed for four different cooling loads with cooled ceilings (0%, 0.25%, 50%, and 80%), at a constant supply air flow rate with two PV airflow modifiers for three cases. As the cooling load treated by a chilled ceiling increased, the average air temperature increased with height in all cases. The lowest values of average air age appeared in the occupied area in the case of a chilled ceiling with mixing ventilation. This study shows that the chilled ceiling combined with a mixing ventilation and personal ventilation system with a flow rate of 7.5 L/s provides thermal comfort and higher air quality in the occupied area. based on the values of air exchange efficiency and occupants’ air exchange efficiency. As a result, a flow rate of 7.5 L/s is the best option for protecting occupants from direct pollution in the breathing zone and in the surrounding microclimate, because the lower the ventilation rate, the less air is changed for occupants.     

某环境监测业务用房空调系统节能分析

通过对某环境监测业务用房空调系统的设计,叙述了新风显热热回收、送风式通风柜、车库CO气体浓度传感器通风系统及水泵变频技术的应用及其节能效果,通过比较计算,指出了几种技术应用具有良好的节能效益。     

公共建筑空调系统节能措施探讨

介绍了中国公共建筑中央空调系统能耗现状,分析了中国公共建筑中央空调系统在设计和运行管理中存在的问题,包括空调冷热负荷、空调系统新风量、空调冷热源、水系统和风系统的维护保养等,并提出了相应节能措施。     

Energy efficient room air distribution

An environmental chamber has been used to compare the effectiveness of mixing and displacement ventilation in terms of heat and contaminant removal. Results are presented for CFD simulations of the air movement in the chamber and for measurements using a heated mannequin with displacement ventilation. The CFD simulations and the measurements suggest that displacement ventilation is more energy efficient than a mixing system.     

转轮式固体干燥剂制冷空调系统的数值计算与分析

阐述了一种新型制冷空调机－转轮式固体干燥剂制冷空调系统的组成及其原理，并建立了物理模型和数学模型。在此基础上用编制的ＤＡＣＳ程序，对一种通风式系统的性能进行了计算。     

Numerical study of a hybrid ventilation system for single family houses

The main objective of this study is to develop and test hybrid ventilation systems and control strategies that are suitable for residential buildings. Two ventilation systems were modelled: a mechanical extract ventilation system (called the reference system) and a hybrid low pressure ventilation system that can support two different types of demand control strategies (occupancy detection and CO₂ concentration). The newly developed models were assembled with the existing thermal models of the SIMBAD Building and HVAC Toolbox developed by the CSTB.A single family house located in Athens (Greece), Nice (France), Trappes (France) and finally Stockholm (Sweden) was considered as the case study. Yearly simulations were performed to assess the performance of the hybrid ventilation control strategies. The assessment criteria used are related to indoor air quality, thermal comfort, energy consumption and stability of control strategies. The results show that the low pressure ventilation system can improve the indoor air quality and reduce the fan energy consumption compared to the reference system while maintaining the same building energy consumption for heating.     

论分析改善室内空气环境的综合措施

从全面通风的基本理论出发,主要针对影响室内空气中有害物浓度的三个主要因素既：有害物散发量、送风空气中有害物浓度以及通风量,具体分析了现有备件下从建筑设计、施工、管理、通风空调系统运行等多方面改善室内空气品质的综合措施和居住及商业建筑中主要的室内有害物散发源、影响送风空气中有害物浓度的主要因素、确定全面通风量需要考虑的问题,结合“可持续建筑”的先进理念,阐明作者对建筑节能与保证室内空气环境之间关系的看法,并以国内、外现有的“绿色建筑”评估体系为依据,分析全面通风过程中值得推广的节能措施。     

能量回收换气机的节能特性研究

本文阐述了空调新风与空气品质之间的关系,对几种通风方式作了对比分析,介绍了能量回收换气机的工作原理和特点,主要对能量回收换气机的节能性进行了计算分析,从而得到能量回收换气机应用的可行性,并对未来能量回收换气技术进行了肯定.