| doi: 10.12013/qxyjzyj2023-019 |
| 气候变化对江西省主要室外空气计算参数的影响 |
Impact of climate change on main outdoor air design parameters in Jiangxi Province |
| 摘要点击 261 全文点击 229 投稿时间：2023-02-09 修订日期：2023-04-18 |
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| 基金: 2022年江西省气象局青年人才培养项目“未来气候变化对关键工程气象参数的影响” |
| 中文关键词: 气候变化，室外空气计算参数，影响，江西省 |
| 英文关键词: climate change outdoor air design parameters impact Jiangxi Province |
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| 引用:陈琦,章毅之,姚琳.2023,气候变化对江西省主要室外空气计算参数的影响[J].气象与减灾研究,46(2):131-140 |
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| 中文摘要: |
| 利用江西83个地面气象站1963—2022年逐日平均气温和14时气温数据，计算每10 a滑动平均采暖室外计算温度、夏季空气调节室外计算日平均温度、冬季通风室外计算温度和夏季通风室外计算温度，分析江西省气候变化及其对室外空气计算参数的影响。结果表明：江西省年平均气温呈明显上升趋势，其中赣北地区上升幅度大于赣南、赣中南部，冬季平均气温增加趋势（0.31℃/（10 a））大于夏季（0.14 ℃/（10 a）），冬季平均气温在1997年发生显著突变，之后冬季平均气温较多年平均值高0.6℃。气候变化背景下，室外空气计算参数变化明显，采暖室外计算温度、夏季空气调节计算温度和冬季通风室外计算温度呈升高趋势，夏季通风室外计算温度的变化趋势不明显。其中，冬季室外计算温度的上升幅度高于夏季，赣北地区的东部和中南部升高趋势较大。采暖室外计算温度升高，建筑的传热负荷设计值减小；夏季空气调节室外计算温度的升高使新风负荷增加，增加室内空气冷却能耗；冬季通风室外计算温度的升高有利于减小冬季通风负荷。 |
| Abstract: |
| Based on the daily mean temperature and 14:00 BT temperature data from 83 surface meteorological observation stations during 1963-2022, the outdoor design temperature for heating, outdoor design mean daily temperature for summer air conditioning, outdoor design temperature for winter ventilation and outdoor design temperature for summer ventilation every 10 years were calculated to study the climate change and its influence on outdoor air design parameters in Jiangxi Province. The results showed that the average annual air temperature in Jiangxi Province presented an obvious uptrend, with the greater increase in northern Jiangxi than that in southern and central Jiangxi. The increasing trend of mean temperature in winter (0.31 ℃/（10 a)) was greater than that in summer (0.14 ℃/（10 a)). The mean temperature in winter had a significant mutation in 1997, and subsequently increased by 0.6 ℃ compared to the annual average. In the context of climate change, outdoor air design parameters changed obviously. The outdoor design temperature for heating, outdoor design mean daily temperature for summer air conditioning and the outdoor design temperature for winter ventilation showed an increasing trend with the warming of climate. However, the long term trend of outdoor design temperature for summer ventilation was not obvious. The increase of calculating outdoor temperature in winter was higher than that in summer, with a greater upward trend in the eastern and central southern parts of northern Jiangxi. The design value of heat transfer load of buildings in Jiangxi will decrease with the increase of outdoor design temperature for heating. The increase of outdoor design mean daily temperature for summer air conditioning imposed the load of fresh air and the energy consumption of indoor air cooling. The increase of outdoor design temperature for winter ventilation was beneficial for reducing the ventilation load in winter. |
