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Underground water source heat pump units watered-based discussion and analysis of test system


Multiple measurements on the measurement uncertainty of type A evaluation, if the test conditions and stability, caused by the repetitive relative uncertainty of A Class B type uncertainty is negligible. The test system is the use of liquid refrigerant method to measure the water side heat transfer is calculated as formula (1). Uncertainty of the water side can be seen mainly from the water temperature and flow measurements, by this method are discussed in Section 2.5 to calibrate, can significantly reduce the magnitude of measurement uncertainty, increase the credibility of measurement results. 4 Conclusion This paper introduces the technical exchange of groundwater water source heat pump design and manufacture of test systems meet the requirements of domestic standards, the program advanced, the structure is reasonable. The test system will use the heat source side to side and heat, making the maximum use of energy are to achieve energy-saving purposes; it has a high degree of automation, to achieve automatic control and regulation, process monitoring, data acquisition and transmission software ; the entire test system in the test equipment on the basis of stable and reliable operation and ensure the precision and accuracy of the test. The establishment of this test system, greatly improving the test of the level of refrigeration and air conditioning industry for research and development of water source heat pump provides a rational design, testing, accurate, stable, reliable and energy-efficient test platform. References: [1] Diaonai Ren, Su Deng Chao. Analysis of water source heat pump air conditioning system used [J1. Construction & Design, 2003, (4). 【2】 Zhang Jiahui, et al. A heat pump energy efficiency of new equipment for a shallow pool heat pump [JJ_ Refrigeration Technology, 1999, (1): 21 ~ 25. [3] the most good horses, Yang Hui. Open loop water source heat pump solar air conditioning system】 【J. Applied Energy Technology, 1997, (3): 4l ~ 4_4. [4] Shaping the Liu Xiao. Water source heat pump and can not use [z】. National HVAC & R 2000 Annual Conference, 2000.122 ~ 126. [5] QUOTED, Miao Chang Hai, Dong Zhilin, Hong Qinghua. Geothermal water source heat pump technology market prospects 『J1. Solar Energy, 2002,23 (6): 692 ~ 695. 『6] 6 by Cheng Chuan, Huang Chenghong, et al. HVAC sensor calibration test device 【JJ. Fluid Machinery, 2005,[link widoczny dla zalogowanych],33 (Suppl): 414 ~ 416. 【7】 Zhang Xiuping,[link widoczny dla zalogowanych], Cheng Li-Quan, Lin Liang chiller performance test how to achieve maximum energy lJ】 device. Fluid Machinery, 2005,33 (Suppl): 394 ~ 397. 【8】 Jia Lei, Yue Haibing, Cheng Li rights. Cooling water source heat pump commercial Yunheng Measurement Uncertainty IJI. Fluid Machinery, 2008,[link widoczny dla zalogowanych],36 (9). Received date :2009-05-04 Revised :2009-05-19StudyonWaterBlendingTestSystemforGround - waterSourceHeatPumpQIANXue-feng. FANHai-bin, ZHANGXiu-ping, ZHENGChuan-jing, JIALei, SONGYou-qiang (HefeiGeneralMachineryResearchInstitute,[link widoczny dla zalogowanych], Hefei230088, China) Abstract: Testmethodandsystemcompositionofthewaterblendingtestsystemforgroundwatersourceheatpumpwereintroduced. Thenthesystem'scharacteristicsanduncertaintyevaluationinusewerediscussed. Itprovidedanewtestplatformforwater-sourceheatpump'sresearchanddevelopment, whichwasrationaldesign, accurate, stableandenergysaving. Keywords: waterblending; testsystem; energysaving; groundwatersourceheatpump Author: Qian Xuefeng (1982 a), male, Wuxi, Jiangsu, undergraduate,[link widoczny dla zalogowanych], engineers, engaged in the design and manufacture of refrigeration and air conditioning laboratory. I glazed paper

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