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针对半集中式空调系统风机盘管的换热计算问题,通过干湿工况转换方法,设计了一种适用于湿工况的风机盘管换热模型。根据能量平衡和热传递原理,简化了该换热模型,使换热量仅由冷水流量、进水温度、盘管风量和进风温度等独立控制变量确定。在实际风机盘管上进行了仿真验证,得到了不同工作条件下的换热曲线。实验结果表明,该简化换热模型计算精度较高。
Aiming at the problem of heat transfer calculation of fan coil in semi-centralized air-conditioning system, a fan coil heat transfer model suitable for wet conditions is designed through the conversion method of wet and dry conditions. According to energy balance and heat transfer principle, the heat transfer model is simplified, so that the heat exchange capacity is only determined by independent control variables such as cold water flow, water inlet temperature, coil air volume and inlet air temperature. In the actual fan coil on the simulation verification, obtained under different working conditions of the heat transfer curve. Experimental results show that the simplified heat transfer model has higher calculation accuracy.