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首页> 外文期刊>Science and Technology for the Built Environment >Improving system efficiency for a variable-capacity/variable-blower-speed residential heat-pump system with multizone ductwork
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Improving system efficiency for a variable-capacity/variable-blower-speed residential heat-pump system with multizone ductwork

机译：采用多型管道制造改善可变容量/可变鼓风机速度储层系统的系统效率

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摘要

This article describes efficiency improvements resulting from incorporating zonal airflow control into a variable-capacity/variable-fan-speed residential air-conditioning system. The results described are based on full-scale laboratory testing of prototype heat-pump equipment connected to a "typical-design" residential duct system located within a climatic chamber used to produce a range of summer climate conditions. The ductwork and air handler were located in the same space as the condenser (with exhaust venting), and compressor speeds and evaporator airflow rates were manipulated over a range of practical combinations to characterize the efficiency of the entire system. System coefficients of performance (COPs) were calculated based upon the delivery effectiveness of the duct system (cooling ultimately delivered through the grilles, divided by cooling supplied at the evaporator coil) and the efficiency of the HVAC equipment. Our results indicate that duct heat gain can be significantly reduced through an appropriately zoned airflow control mechanism. Zoned ductwork produces the highest system COP at all duct-zone temperatures, with the COP improvements being more pronounced at higher duct-zone temperatures and at lower capacities and airflow rates. Our results also validate the potential for using variable-capacity/variable-fan-speed technology combined with appropriate zonal control demand response events without compromising the efficiency of the air-conditioning system.
机译：本文介绍了将区域气流控制结合到可变容量/可变风扇速度住宅空调系统中产生的效率改进。所描述的结果基于连接到位于用于产生一系列夏季气候条件的气候室内的“典型设计”住宅管道系统的原型热泵设备的全尺度实验室测试。导管和空气处理器位于与冷凝器相同的空间（用排气通风），并且在一系列实际组合上操纵压缩机速度和蒸发器气流速率，以表征整个系统的效率。基于管道系统的输送有效性（冷却最终通过烤架输送，通过在蒸发器线圈提供的冷却）和HVAC设备的效率，计算性能（COP）的系统系数。我们的结果表明，通过适当地分区的气流控制机构可以显着降低管道热增益。分区导管在所有导管区温度下产生最高的系统COP，COP改进在较高的管区温度和较低的容量和气流速率下更加明显。我们的结果还验证了使用可变容量/可变风扇速度技术的可能性结合适当的区域控制需求响应事件，而不会影响空调系统的效率。

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