空调风系统管网风量平衡仿真调试(二):构件模型与实验验证  

Simulation-based method for HVAC air-side system balancing(2):Fitting models and experimental verification

作　　者：王秋涧 潘毅群[3] 黄治钟[2] Wang Qiujian;Pan Yiqun;Huang Zhizhong(Shanghai Research Institute of Building Sciences Co.,Ltd.Shanghai,China;不详)

机构地区：[1]上海市建筑科学研究院有限公司 [2]同济大学 [3]同济大学机械与能源工程学院,201804

出　　处：《暖通空调》2021年第6期75-81,62,共8页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目“基于高维空间理论的建筑能耗预测最小变量集构建方法研究”(编号:51978481)。

摘　　要：介绍了基于Modelica Buildings Library的新局部阻力构件建模过程。在一个典型风系统枝状管网上,对仿真调平结果进行了实验验证。针对局部阻力模型误差影响采用蒙特卡罗仿真方法进行了不确定性分析,以验证仿真调平结果的可靠性。结果表明,仿真调平与实际调平所得的风阀开度结果之间的平均误差为4.35%,最大误差不超过15%。即使在考虑误差的情况下,仿真调平的阀门开度仍可以使实验系统中的绝大多数末端达到平衡状态。Builds the new fitting models based on Modelica Buildings Library with the correction function embedded.Balances a typical branched duct system experimentally.Then compares the dampers’opening results determined by the simulation and the experiment with each other.At last adopts the uncertainty analysis method utilizing Monte Carlo simulation to analyse the impact of the local pressure loss coefficient(LPLC)model errors on the balancing performance.The results show that the average error between the simulated and experimental results of the dampers’opening is 4.35%,while the maximum error is less than 15%.The simulated dampers’opening can guarantee that most of the terminals in the example system are still balanced despite the model errors.

关 键 词：建筑调适 风系统管网风量平衡 局部阻力模型 Modelica建模 不确定性分析 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]