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            暖通空调杂志社>期刊目次>2014年>第1期

            大空间喷口送风同步求解模型及关键参数

            Synchronous solving model and key parameters for nozzle air supply in large space buildings

            蔡宁[1],程丹丹[1],王天一[1],黄晨[2],王昕[2]
            [1]南京工程学院,[2]上海理工大学

            摘要:

            建立了大空间喷口送风工况下室内空气和内壁面温度同步求解的数学模型,对模型中的关键参数地面温度和区域换热系数进行了讨论,考虑地面向下的传热,建立了地面热平衡方程,根据送风层的送风量和卷吸量修正了区域换热系数。通过实际大空间建筑夏季热环境实验,实测了室内空气竖直温度分布和内壁面温度分布,对修正后的同步求解模型进行了验证和完善,结果表明,修正模型的计算结果与实测值吻合得较好。

            关键词:大空间,喷口送风,空气温度,内壁面温度,同步求解模型,区域换热系数

            Abstract:

            Develops a synchronous solving model for indoor air temperature and inner wall temperature under different conditions of nozzle air supply in large space buildings, and discusses the key parameters such as floor temperature and zone heat transfer coefficient. Establishes a heat balance equation of floor heat transfer considing the heat transfer from floor to underground soil, and corrects the zone heat transfer coefficient based on the air supply rate and the entrainment rate. Through an experiment on the thermal environment in a large space building in summer, tests indoor air vertical temperature and inner wall temperature, and verifies and improves the corrective synchronous solving model. The results show that the results of the corrective model agree well the test data.

            Keywords:largespace,nozzleairsupply,airtemperature,innerwalltemperature,synchronoussolvingmodel,zoneheattransfercoefficient

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