Cooling towers are important equipments for the heating, ventilation and air conditioning systems in commercial buildings, rejecting the process heat generation to the atmosphere. Dynamic modeling of cooling tower is beneficial for control design and fault detection and diagnostics of the chilled-water systems. This paper proposes a simple and yet effective dynamic model for a typical mechanical draft counter-flow cooling tower. The finite volume method is applied to the one-dimensional heat and mass transfer analysis. With control volumes defined separately for the water and air sides, the dynamic equations are constructed with the mass and energy balances. The steady-state performance of the proposed model is evaluated with the experimental data from literature. The transient behavior is simulated under the changes of tower inlet conditions, with the performance to be evaluated in the future with field test data.
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ASME 2010 Dynamic Systems and Control Conference
September 12–15, 2010
Cambridge, Massachusetts, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-4418-2
PROCEEDINGS PAPER
Dynamic Modeling of Mechanical Draft Counter-Flow Wet Cooling Tower With Modelica Available to Purchase
Xiao Li,
Xiao Li
University of Wisconsin-Milwaukee, Milwaukee, WI
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Yaoyu Li,
Yaoyu Li
University of Wisconsin-Milwaukee, Milwaukee, WI
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John E. Seem
John E. Seem
Johnson Control, Inc., Milwaukee, WI
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Xiao Li
University of Wisconsin-Milwaukee, Milwaukee, WI
Yaoyu Li
University of Wisconsin-Milwaukee, Milwaukee, WI
John E. Seem
Johnson Control, Inc., Milwaukee, WI
Paper No:
DSCC2010-4147, pp. 687-694; 8 pages
Published Online:
January 25, 2011
Citation
Li, X, Li, Y, & Seem, JE. "Dynamic Modeling of Mechanical Draft Counter-Flow Wet Cooling Tower With Modelica." Proceedings of the ASME 2010 Dynamic Systems and Control Conference. ASME 2010 Dynamic Systems and Control Conference, Volume 2. Cambridge, Massachusetts, USA. September 12–15, 2010. pp. 687-694. ASME. https://doi.org/10.1115/DSCC2010-4147
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