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Energy modeling of ground source heat pump vs. variable refrigerant flow systems in representative US climate zones

机译：美国典型气候区的地源热泵与可变制冷剂流量系统的能量模型

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The ground source heat pump (GSHP) and variable refrigerant flow (VRF) systems are the most competitive HVAC technologies in the current market. However, there are very few studies reporting the comparison of the annual energy consumptions and Electric Peak demand reductions between GSHP and VRF systems because of the limitation of the whole building energy simulation software. Current version of EnergyPlus can model both GSHP and air-source VRF. Therefore, three representative US climate zones including Chicago, Baltimore and Atlanta are selected for conducting this comparison study. The Energy Plus simulation results show that the GSHP system not only saves more energy than the air-source VRF system but also significantly reduces the Electric Peak demand regardless the climate conditions. This makes the GSHP system a more desirable energy efficient HVAC technology for the utility companies and their clients.
机译：地源热泵（GSHP）和可变制冷剂流量（VRF）系统是当前市场上最具竞争力的HVAC技术。但是，由于整个建筑能耗模拟软件的局限性，很少有研究报告比较GSHP和VRF系统之间的年度能耗和电高峰需求减少。当前版本的EnergyPlus可以为GSHP和空气源VRF建模。因此，我们选择了三个具有代表性的美国气候区，包括芝加哥，巴尔的摩和亚特兰大来进行此比较研究。 Energy Plus仿真结果表明，GSHP系统不仅比空气源VRF系统节省更多的能源，而且无论气候条件如何，都能显着减少用电高峰的需求。这使得GSHP系统成为公用事业公司及其客户更理想的节能HVAC技术。

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