太阳墙新风装置的性能模拟  

Simulation of Performance of Fresh Air Device for Solar Wall

作　　者：贾斌广 李晓 张大鹏 张金磊 JIA Binguang;LI Xiao;ZHANG Dapeng;ZHANG Jinlei

机构地区：[1]山东建筑大学热能工程学院,山东济南250101 [2]山东省产品质量检验研究院,山东济南250102

出　　处：《煤气与热力》2018年第11期25-30,共6页Gas & Heat

摘　　要：介绍太阳墙新风装置(利用太阳墙吸收太阳能加热室外新风的装置,以下简称太阳墙)的结构及新风处理流程。以济南地区为例,采用FLUENT软件,选取2016—2017年供暖期各月各时刻(以公共建筑工作的8:00—17:00为时间段)的太阳辐照度算术平均值以及各月室外平均温度,模拟计算固定新风量下供暖期各月各时刻的太阳墙送风温度及新风负荷比(太阳墙对新风的加热量与新风负荷之比)。供暖期各月各时刻的太阳墙送风温度均随时间的延长先上升后下降,与日间太阳辐照度的变化基本一致。最冷月(12月、1月)太阳墙送风温度最低,较冷月(2月)太阳墙送风温度居中,供暖初末期(11月、3月)太阳墙送风温度最高。各月各时刻的太阳墙新风负荷比均随时间的延长先上升后下降,与日间太阳辐照度的变化基本一致。太阳墙新风负荷比由大到小的顺序依次为3月、11月、2月、12月、1月,与太阳墙送风温度的变化基本一致。The structure and the fresh air handling process of the solar wall fresh air device（which uses solar walls to absorb solar energy to heat outdoor fresh air,hereinafter referred to as the solar wall）are introduced. Taking Jinan region as an example,the arithmetic mean of solar radiation intensity at different times of each month during the heating period from 2016 to 2017 （ 8：00 to 17：00 for public building works） and the monthly average outdoor temperature are selected,and the solar wall air supply temperature and the fresh air load ratio （ ratio of fresh air heating to the fresh air load by solar wall ） at different times of each month during the heating period under the fixed air supply are simulated and calculated by Fluent software. The air supply temperature of the solar wall at different times of each month during the heating period increases first and then decreases with the extension of time,which is basically consistent with changes of the diurnal solar radiation intensity. The air supply temperature of the solar wall in coldest months （December and January） is the lowest,the air supply temperature of the solar wall in colder month （February） is the middle,and the air supply temperature of the solar wall at the beginning and end of heating （November and March） is the highest. The fresh air load ratio of the solar wall at different times of each month increases first and then decreases with the extension of time,which is basically consistent with changes of the diurnal solar radiation intensity. The order of the fresh air load ratio of the solar wall from large to small is March,November,February,December and January,which is basically consistent with changes of the air supply temperature of the solar wall.

关 键 词：太阳墙新风装置 送风温度 新风负荷比 数值模拟 

分 类 号：TU832.2[建筑科学—供热、供燃气、通风及空调工程]