对一台标称容量为2吨的地源热泵在有无新鲜空气的冷却模式下进行了测试，以表征其在两种情况下的除湿和冷却能力。根据ARI标准330，首先仅使用热泵进行试验，以表征其性能，然后，在使用新鲜空气的情况下，使用和不使用焓交换装置进行试验。根据ASHRAE标准62-1999的指南，在高于调节空气的潮湿状态下供应新鲜空气。在没有新鲜空气的情况下，在ARI条件下，热泵的性能符合预期。 在冷却标准额定条件下——77ºF流体温度和80/67ºF（干球/湿球）回风状态——测得的空气侧容量为32815 Btu/h，冷凝率为9.76 lb/h。ARI测试后，在55ºF和90ºF之间以及90%相对湿度下，以320 cfm的速率引入新鲜空气，有无焓交换系统。热泵在两种室内空气状态下的冷却模式下进行了测试——ARI和70ºF/50%相对湿度。新鲜空气中的水分引入率、焓交换轮中的水分去除率和热泵的水分去除率都受到了监控，冷却和加热模式下的合理传热也受到了监控。 这项研究的结果是在各种室内和新鲜空气条件下，以各种模式工作的组合系统的除湿和显冷能力的表征。通过这项参数研究获得的信息，再加上空调空间热负荷特性的知识，设计师能够更好地将设备性能与所需的教室条件相匹配。单元:双引文:研讨会，ASHRAE交易，第107卷，第。2.

A nominal 2-ton capacity ground-source heat pump was tested in cooling mode with and without fresh air to characterize its moisture removal and cooling capabilities in both cases. Tests were first performed with the heat pump only, to characterize its performance in accordance with ARI Standard 330, and later, in the cases using fresh air, tests were performed with and without an enthalpy exchange unit. Fresh air was supplied at a humid state above that of the conditioned air and in accordance with the guidelines of ASHRAE Standard 62-1999. Without fresh air, under ARI conditions, the heat pump performed in line with expectations. At the cooling standard rating condition--77ºF fluid temperature and 80/67ºF (dry bulb/wet bulb) return air state--the measured air-side capacity was 32,815 Btu/h with a condensation rate of 9.76 lb/h. Following ARI testing, fresh air at temperatures between 55ºF and 90ºF and at 90% RH was introduced at a rate of 320 cfm, with and without the enthalpy exchange system. The heat pump was tested in cooling mode with two indoor air states--ARI and 70ºF/50% RH. Rates of moisture introduction from fresh air, moisture removal from the enthalpy exchange wheel, and moisture removal by the heat pump were all monitored, as were sensible transfers of heat in both cooling and heating modes. Resulting from this study is a characterization of the moisture removal and sensible cooling abilities of the combined system working in a variety of modes under a variety of indoor and fresh air conditions. With information gained from this parametric study, coupled with knowledge of the thermal loading characteristics of the conditioned space, a designer is better able to match equipment capabilities with desired classroom conditions.Units: Dual