零碳视角下的暖通空调设计 ——以某机场航站楼为例
HVAC design from a zero-carbon perspective—Taking an airport terminal building as an example
摘要：
根据项目零碳设计规划,对暖通空调零碳设计要点进行了研究与分析,包括:构建高效制冷机房分析模型、利用XGBoost(极限梯度提升)算法构建提高供水温度后的末端换热模型、采用分布式空调末端、利用CFD方法对气流组织和节能性进行分析等。分析结果表明,提高空调供水温度后,制冷机房达到1级能效要求。本项目采用的方法可为其他零碳项目暖通空调设计提供参考。
Abstract：
In line with the zero-carbon design plan of the project, this paper studies and analyses the key points of zero-carbon HVAC design, including the following aspects: establishing a high performance chilled-water plant analysis model, constructing an end-terminal heat exchange model after increasing the water supply temperature using the XGBoost algorithm, adopting distributed air conditioning terminals, and analysing the air distribution and energy efficiency using the CFD method. The analysis results show that after increasing the air conditioning water supply temperature, the annual energy efficiency ratio of the chilled-water plant system meets the first-level energy efficiency requirements. The methods employed in this project can provide references for the HVAC design of other zero-carbon projects.
Keywords:zero carbon; low carbon; terminal building; high performance chilled-water plant; water supply temperature; heat exchange model; XGBoost; distributed air conditioning terminal