隔声控制对室内气流组织影响案例分析
Case study on influence of sound insulation control on indoor air distribution
摘要：
在满足温湿度控制的基础上，一些特殊建筑对隔声有严格要求，其通风系统为满足温湿度控制宜采用较大风量，但隔声控制又导致送风量受到很大限制，2种不同方向的控制方式对空调通风系统提出了新的挑战。为解决隔声和热舒适性之间的矛盾关系，以小型隔声会议室为例，对下送上回、上送上回和定点送风3种送风方式的气流组织进行了模拟，并采用ADPI、空气龄及PMV-PPD评价指标进行评价。实验结果表明，相比其他2种送风方式，定点送风可以在满足隔声的要求下保持人员的热舒适性，送风量降低6.67%。
Abstract：
On the basis of meeting the temperature and humidity control, some special buildings have strict requirements for sound insulation. In order to meet the temperature and humidity control, the ventilation system should adopt large air volume, but the sound insulation control leads to great restrictions on the air supply volume. Two control modes in different directions pose new challenges to the air conditioning and ventilation system. In order to solve the contradiction between sound insulation and thermal comfort, taking a small sound insulation conference room as an example, the air distribution of three air supply modes: down supply and up return, up supply and up return and fixed-point air supply are simulated, and the evaluation indexes of ADPI, air age and PMV-PPD are used to evaluate. The experimental results show that compared with the other two air supply modes, the fixed-point air supply can maintain the thermal comfort of personnel while meeting the requirements of sound insulation, and the air supply volume can be reduced by 6.67%.
Keywords:smallsoundinsulationconferenceroom;numericalsimulation;airdistribution;thermalcomfort;fixed-pointairsupply;downsupplyandupreturn;upsupplyandupreturn