Energy Efficiency Detection And Operating Characteristic Analysis Of Ground Source Heat Pump System On A Dormitory Building In Hubei Xiantao

The energy efficiencydetectionof ground source heat p ump system need to be connected with practical engineering project.Besides, unreasonable system operating model may increase the system energy consumption. Therefore,it's of significantlyrealistic meaningto make enengy efficiency detection and operating characteristic ananlysis according to the actual operating situationof ground-water source heat pump system.Firstly, the detection contents?instruments and methods and so on are introduced in the thesis, and, the building gradually cooling and heating load, etc, are analyzed, with the energy efficiency detection on this system in summer and winter respectively, depending on ground-water source heat pump system on a practical grogshop staff dormitory building in hubei xiantao. At the same time, the unit and system related performance parameter were gained after data processing. The conclusion shows that the system runs wel, whose performance series is 2.Then, the energy-saving ? envionmental and economicalbenefit were analyzed quantitatively, which is remarkable,having demonstration. Besides, enengy efficiency evaluation mathematical model of the summer and winter system in the multiple nonlinear regression method was established connected with the data gained by detection. The error is in 10% by verification, so the model is effective. The energy saving rate of heat pump system in summer and winter can be got rapidly with the model.Finally, the operating characteristicof the ground-water source heat pump central ari-conditioning system was researched and analyzedin detail, altering part system load by experiment connected with the data gained by system energy efficiency detection.Some parameters affecting the unit and system performance were found out and corresponding unit and system operating mode was summarized that the system runs best and can save most energy when the unit load rate is about 80 percent, at the same time, the unit energy efficiency ratio(EER) get maximum 5.93 when the user side outlet and the heat sink(source) side inlet are 11.5? and 16.0? severally, besides, the system coefficient of performance(COP) get maximum when the user side and heat sink(source) side water flow are about 140m3/h and 120m3/h, using which as the argument respectively, etc.A reliable enengy efficiency evaluation system and effective unit and system operating mode were setted up for this ground-water sourece heat pump system through the above work,providing valuable reference template for the design and operation management of other similar engineering project system in this aera.