https://scholars.lib.ntu.edu.tw/handle/123456789/411464
標題: | Identification of solar collector dynamics using physical model-based approach | 作者: | Huang B.J. Wang S.B. |
公開日期: | 1994 | 卷: | 116 | 期: | 4 | 起(迄)頁: | 755-763 | 來源出版物: | Journal of Dynamic Systems, Measurement and Control | 摘要: | A system dynamics model of flat-plate solar collectors was derived and identified here. A nonlinear physical model was first derived from a two-node concept and energy conservation principle. The model was then approximated by the linear perturbation equations which were Laplace transformed and solved to lead to a distributed model in terms of the transfer functions. A model reduction was further employed to yield a linear time-invariant model with parameters as functions of steady-state operating conditions. The model parameters were identified by a dynamic test with step inputs at various operating conditions using frequency response analysis and model fitting in frequency domain. The identified parameters were then fitted to a function of steady-state mass flowrate mw. Thus, the model can describe the system dynamics behavior under various operating conditions through the identified parameters. The simulations using the model were shown to agree very well with the test results. © 1994 by ASME. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028713850&doi=10.1115%2f1.2899275&partnerID=40&md5=b0e30c8c68869217d4b30460860eb509 https://scholars.lib.ntu.edu.tw/handle/123456789/411464 |
ISSN: | 220434 | DOI: | 10.1115/1.2899275 | SDG/關鍵字: | Approximation theory; Dynamics; Frequency domain analysis; Laplace transforms; Mathematical models; Parameter estimation; Perturbation techniques; Transfer functions; Nonlinear physical model; Solar collector dynamics; Solar collectors |
顯示於: | 機械工程學系 |
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