Establishment and Solution of the RNC Flow Network Model

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Abstract:

The mathematical model based on graph theory and the refrigerant natural cycle system of gas-liquid two-phase flow network is established. Incidence matrix was used to describe the relationships between the various components. The node conservation equations, branch equations, momentum conservation equation in return circuit and mass conservation equations of system are established. The model was solved by using variable step gird iterative method. Then refrigerant state of each node and refrigerant flow of each branch in network model are obtained. Establishment and solution of the RNC network model provides an effective way for the further performance analysis of system.

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1783-1789

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April 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Cunyang Fan. A new energy saving method of air conditioning—the application of refrigerant natural cycle. Refrigeration Technology 1989, 24(4): 1-6.

Google Scholar

[2] Liying Sun, Zuiliang Ma. A distributed simulation study of refrigerant natural circulation system. Journal of Harbin Engineering University. 2006, 27(1)10-14.

Google Scholar

[3] Liying Sun. Operation characteristics and study of application system about refrigerant natural circulation system. Doctor paper of Harbin Engineering University. 2006; 59-61.

Google Scholar

[4] Shangquan Shao, Wenxing Shi, Xianting Li. Simulation Model of Complex Refrigeration and Air Conditioning System Based on the Two-phase Flow Network. China mechanical engineering. 2003, 14(8): 690-693.

Google Scholar

[5] Shuangquan Shao. Simulation of complex pipe network cooling system . doctor paper of Tsing Hua University. (2005).

Google Scholar

[6] Weiming Wang. A new natural circulation air-conditioning system. HVAC. 1990, 20(3); 31.

Google Scholar

[7] Zhaoyu Shi. Analysis and Study for Flow Network. Thermal Engineering Department of Tsinghua University. 1993: 13-22.

Google Scholar

[8] Inoue Yoshinori, Saki Yoshitaka, Sugiura Shushi. Dynamic ice system as a refrigerant in the natural circulation air-conditioning system. SHASE. 1991, 64(7): 547-552.

Google Scholar