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《Cryogenics》 2007-01
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Automatic control for a heat pump system with variable compositions of mixture refrigerant

Zhang Lina Chen Guangming Cong Haiying (Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China)  
The control method was designed according to the requirement of control.A software programmed with LabVIEW 7.0 was made for the experimental system.By the designed software,parameters of the PID algorithm were set up by PID autotuning VI.Temperature control experiments were conducted and the availability of the software was proved.The results show that the control accuracy of inlet temperature water to condenser and outlet temperature from evaporator of refrigerant were within ±0.1 ℃ and ±0.3 ℃ respectively.The interval of time from one steady state to another is less than 15 minutes.The accuracy of the temperature control meets the requirement of heat pump experimental researches.
【Fund】: 浙江省自然科学基金委员会重点项目“新型环保制冷剂的重要基础数据及关键应用技术研究”(批准号Z105034)
【CateGory Index】: TB663
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【References】
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1 Liu Dongfang Chen Guangming(Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, 310027, China);Experimental Study on a Variable Capacity Heat Pump System with Ternary Mixture Refrigerants[J];Journal of Refrigeration;2009-04
【Citations】
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【Co-citations】
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1 Zhang Lina1 Chen Guangming2(1Ningbo University of Technology,Ningbo 315016,China)(2Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China);Experiment of variable composition heat pump system with R32/R134a and R407C[J];Cryogenics;2009-02
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Fan Juli Chen Guangming Zhang Shaozhi Wang Haiying(Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,China);A program-controlled cryomicroscopy system designed with LabVIEW[J];Cryogenics;2006-01
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【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 Liu Dongfang Chen Guangming(Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, 310027, China);Experimental Study on a Variable Capacity Heat Pump System with Ternary Mixture Refrigerants[J];Journal of Refrigeration;2009-04
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 YANG Zhao ;LIU Zigang(Energy rescurce Deparyment, Xianjiao University Xian 710049)LU Canren; MA Yitai(Thermal Energy Department, Tianjin University Tianjin 300072);THE PROPERTIES AND ENERGY SAVING PRETENTIAL OF A CAPACICTY CONTROL SYSTEM BY VARYING THE COMPOSITION OF A MIXTURE[J];JOURNAL OF ENGINEERING THERMOPHYSICS;1998-01
2 CHEN Bin1,CHEN Guang-ming1,LIU Li-hua2,HONG Feng1,HU Yong-liang1 (1.Zhejiang University,Hangzhou 310027,China;2.Zhejiang University of Sciences,Hangzhou 310033,China);Capacity-controllable Modulation of Refrigerant Mixture and its Application[J];Fluid Machinery;2004-12
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