期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 36, 期 8, 页码 2128-2147出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2013.05.006
关键词
State-space model; Dynamic response; Vapor compression; Liquid chiller; R-134A
资金
- National Natural Science Foundation of China [51076100]
A state-space model has been developed to investigate the dynamic behaviors of refrigeration system. By using vector-matrix notation and linearization, the ordinary differential equations describing the chiller's dynamic thermal behaviors are transformed into a representation form of the state space. The model has been validated by a series of dynamic response experiments of a chiller with the refrigerant R-134a. The average errors of the model results compared with the experimental data are all less than 10% in the experimental cases. Afterward, the model is used to investigate the transient behaviors of the exit cold carrier temperature of evaporator under different A disturbances. The state-space model developed in this study helps us have a good idea of the dynamic performance of a refrigeration system under transient conditions and design optimized control strategies for a high-energy-efficiency HVAC system. (C) 2013 Elsevier Ltd and IIR. All rights reserved.
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