کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1735525 | 1016183 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Performance evaluation and modeling of a hybrid cooling system combining a screw water chiller with a ground source heat pump in a building Performance evaluation and modeling of a hybrid cooling system combining a screw water chiller with a ground source heat pump in a building](/preview/png/1735525.png)
The performance of a hybrid cooling system that combines a screw water chiller with a ground source heat pump (GSHP) was measured and analyzed at various cooling loads. In addition, the hybrid cooling system in a building was modelled sophisticatedly using EnergyPlus and then validated with the measured data. The coefficient of performance of the GSHP was lower than that of a conventional chiller in the monitored building, but the hybrid cooling system helped to stably provide the required cooling capacity at high-load conditions. The mean bias error and the normalized root-mean squared error of the predicted cooling load of the building were −8% and 12.4%, respectively. The hybrid cooling system was simulated by varying four operating parameters: the operating schedule, chilled water temperature (TCW), dry-bulb temperature (TDB), and entering water temperature (TEW). The TCW is ascertained as being the most effective control parameter in the hybrid cooling system.
Journal: Energy - Volume 35, Issue 5, May 2010, Pages 2006–2012