西安建筑科技大学学报(自然科学版)

空调室外干湿球温度参数同时作用于建筑物,是影响建筑热环境的重要参数,在空调系统设计中作为室内负荷计算和空调设备容量计算的初始计算气象条件.现阶段,空调室外计算干、湿球温度的确定方法主要是对单个气象参数的一维概率统计,而未考虑两者之间的同时发生性.因此,本文提出了一种二元超阈值模型的室外干湿球温度确定方法,对满足完全不保证率下的干、湿球温度进行求解计算,从而获得同时发生的室外干湿球温度参数.该方法为空调系统的设计参数提供了一种更为科学合理的确定方法.以乌鲁木齐为例,计算结果表明空调室外计算干、湿球温度值较我国方法均有所降低,较ASHRAE方法中的伴随参数有所增加.

As an important parameter affecting the building thermal environment, the air conditioning outdoor dry-bulb and wet-bulb temperature parameters also act on buildings simultaneously. In the design of the air conditioning system, they serve as the initial calculation meteorological conditions for indoor load calculation and air conditioning equipment capacity calculation. At present, the method of determining the design dry-bulb and wet-bulb temperatures of air conditioning mainly concentrates on one-dimensional probability statistics of a single meteorological parameter, but does not consider the simultaneous occurrence of the two. Therefore, this paper proposes a method to determine the design outdoor dry-bulb and wet-bulb temperatures based on the binary super-threshold model. The coincident design dry-bulb and wet-bulb temperatures which satisfy the completely non-guarantee rate can be calculated. This method provides a more scientific and reasonable determination method for the design parameter calculation of air conditioning system. Taking Urumqi as an example, the results show that, compared with Chinese method, the calculated values of design dry-and wet-bulb temperature are lower, and compared with ASHRAE method, the adjoint parameters are increased.

引言
1 数据来源与预处理
2 现有夏季空调室外计算参数确定方法
3 基于二元超阈值模型完全不保证率下的空调室外计算参数确定方法
4 结果与分析
5 结论

图1 我国方法下得到的室外设计参数及空气状态不保证区域<br/>Fig.1 The outdoor design parameters and the region of no guarantee of air state obtained by chinese method

图1 我国方法下得到的室外设计参数及空气状态不保证区域
Fig.1 The outdoor design parameters and the region of no guarantee of air state obtained by chinese method

图2 ASHRAE方法下得到的室外计算参数及空气状态不保证区域<br/>Fig.2 The outdoor design parametersand the region of no guraranteevfair state obtained by ASHRAE method

图2 ASHRAE方法下得到的室外计算参数及空气状态不保证区域
Fig.2 The outdoor design parametersand the region of no guraranteevfair state obtained by ASHRAE method

表1 乌鲁木齐市1978—2016年我国方法和ASHRAE方法下各参数不保证时长<br/>Tab.1 No guarantee duration of parame ters under China's method and ASHRAE method in Urumqi from 1978 to 2016

表1 乌鲁木齐市1978—2016年我国方法和ASHRAE方法下各参数不保证时长
Tab.1 No guarantee duration of parame ters under China's method and ASHRAE method in Urumqi from 1978 to 2016

图3 同时发生的干、湿球温度划分的空气状态区域分布图<br/>Fig.3 Regional distribution diagram of air state divided by coincident dry-and wet-bulb temperature

图3 同时发生的干、湿球温度划分的空气状态区域分布图
Fig.3 Regional distribution diagram of air state divided by coincident dry-and wet-bulb temperature

图4 二元超阈值模型建立过程<br/>Fig.4 The process of establishing binar hyper-threshold model

图4 二元超阈值模型建立过程
Fig.4 The process of establishing binar hyper-threshold model

图5 乌鲁木齐市干、湿球温度的高温累计经验分布曲线<br/>Fig.5 The accumulated experience distribution curve of dry and wet bulb temperature in Urumqi

图5 乌鲁木齐市干、湿球温度的高温累计经验分布曲线
Fig.5 The accumulated experience distribution curve of dry and wet bulb temperature in Urumqi

图6 干、湿球温度的w值直方图<br/>Fig.6 The accumulated experience distribution curve of dry andwet bulb temperature in Urumqi

图6 干、湿球温度的w值直方图
Fig.6 The accumulated experience distribution curve of dry andwet bulb temperature in Urumqi

图7 室外干球温度与湿球温度的平均剩余寿命图<br/>Fig.7 Average residual life of outdoor dry bulb temperature

图7 室外干球温度与湿球温度的平均剩余寿命图
Fig.7 Average residual life of outdoor dry bulb temperature

图8 P-P图和Q-Q图
Fig.8 P-P and Q-Q

表2 三种方法确定的干、湿球温度值比较 ℃<br/>Tab.2 Comparision of dry and wet bulb temperature values determined by three methods ℃

表2 三种方法确定的干、湿球温度值比较 ℃
Tab.2 Comparision of dry and wet bulb temperature values determined by three methods ℃

图9 新方法下得到的室外计算参数

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备注

引言

1 数据来源与预处理

2 现有夏季空调室外计算参数确定方法

3 基于二元超阈值模型完全不保证率下的空调室外计算参数确定方法

4 结果与分析

5 结论

期刊信息