西安建筑科技大学学报(自然科学版)

室外综合温度对建筑负荷计算和围护结构热工设计十分重要,为评价室外综合温度计算模型在干热干冷地区的适用性,以吐鲁番作为干热干冷地区代表城市,同时选取西安、拉萨、上海作为对比对室外综合温度计算模型差异进行分析.同时采用数值模拟计算了一栋简化居住建筑的模型计算误差.结果表明,两种模型在不同气候下均存在差异,干热干冷地区差异最显著,西安和上海地区可采用空气温度做室外综合温度简化计算,吐鲁番和拉萨地区应采用天空辐射值对室外综合温度进行计算.

Sol-air temperatures are very important to the thermal load calculation and building envelope structure design. To evaluate applicability of the sol-air temperatures calculation model for dry hot and dry cold areas,the paper takes Turpan as the representative city,with Shanghai and Xi'an,Lhasa as a comparison to analyze the differences of sol-air temperatures calculation models. The model error of a simplified residential building is calculated by numerical simulation. The results show that the differences exist in two models in different climates,which are remarkable in dry hot and dry cold areas. Air temperature can be used for the simplified calculation of sol-air temperatures in Xi'an and Shanghai,and sky radiation value should be used for the calculation of sol-air temperatures in Turpan and Lhasa.

引言
1 室外综合温度
2 模型对比分析
3 误差分析
4 围护结构得热计算结果
5 结论

表1 代表城市冬夏季气象参数<br/>Tab.1 Meteorological parameters of typical cities

表1 代表城市冬夏季气象参数
Tab.1 Meteorological parameters of typical cities

图1 吐鲁番两种模型室外综合温度<br/>Fig.1 Sol-air temperatures of two models in Turpan

图1 吐鲁番两种模型室外综合温度
Fig.1 Sol-air temperatures of two models in Turpan

图2 吐鲁番长波辐射降温逐时值<br/>Fig.2 Hourly value of long wave radiation cooling in Turpan

图2 吐鲁番长波辐射降温逐时值
Fig.2 Hourly value of long wave radiation cooling in Turpan

图3 典型城市室外综合温度<br/>Fig.3 Sol-air temperatures of typical city

图3 典型城市室外综合温度
Fig.3 Sol-air temperatures of typical city

图4 典型城市长波辐射降温<br/>Fig.4 Long wave radiation cooling of typical cities

图4 典型城市长波辐射降温
Fig.4 Long wave radiation cooling of typical cities

图5 建筑标准层平面图<br/>Fig.5 Building standard floor plan

图5 建筑标准层平面图
Fig.5 Building standard floor plan

图6 居住建筑简化几何模型<br/>Fig.6 Simplified geometric model of residential building

图6 居住建筑简化几何模型
Fig.6 Simplified geometric model of residential building

图7 吐鲁番围护结构得热计算逐时误差值<br/>Fig.7 Hourly error value of heat gain calculation of Turpan envelope structure

图7 吐鲁番围护结构得热计算逐时误差值
Fig.7 Hourly error value of heat gain calculation of Turpan envelope structure

图8 吐鲁番围护结构得热计算误差频率<br/>Fig.8 Error frequency of heat gain calculation of Turpan envelope structure

图8 吐鲁番围护结构得热计算误差频率
Fig.8 Error frequency of heat gain calculation of Turpan envelope structure

图9 各典型城市围护结构得热计算误差率<br/>Fig.9 The error rate of heat gain calculation of urban envelope structure in typical cities

图9 各典型城市围护结构得热计算误差率
Fig.9 The error rate of heat gain calculation of urban envelope structure in typical cities

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备注

引言

1 室外综合温度

2 模型对比分析

3 误差分析

4 围护结构得热计算结果

5 结论

期刊信息