Vapor compression cycle systems using accumulators and receivers inherently operate at or near a transition point involving changes of phase at the heat exchanger outlets. This work introduces a condenser/receiver model and an evaporator/accumulator model developed in the moving-boundary framework. These models use a novel extension of physical variable definitions to account for variations in refrigerant exit phase. System-level model validation results, which demonstrate the validity of the new models, are presented. The model accuracy is improved by recognizing the sensitivity of the models to refrigerant mass flow rate. The approach developed and the validated models provide a valuable tool for dynamic analysis and control design for vapor compression cycle systems.
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alleyne@illinois.edu
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November 2008
Research Papers
Moving-Boundary Heat Exchanger Models With Variable Outlet Phase
Brian D. Eldredge,
brian.eldredge@gmail.com
Brian D. Eldredge
University of Illinois at Urbana-Champaign
, 158 MEB, MC-244, 1206 West Green Street, Urbana, IL 61801
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Bryan P. Rasmussen,
brasmussen@tamu.edu
Bryan P. Rasmussen
Texas A&M University
, 3123 TAMU, College Station, TX 77843-3123
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Andrew G. Alleyne
alleyne@illinois.edu
Andrew G. Alleyne
University of Illinois at Urbana-Champaign
, 158 MEB, MC-244, 1206 West Green Street, Urbana, IL 61801
Search for other works by this author on:
Brian D. Eldredge
University of Illinois at Urbana-Champaign
, 158 MEB, MC-244, 1206 West Green Street, Urbana, IL 61801brian.eldredge@gmail.com
Bryan P. Rasmussen
Andrew G. Alleyne
University of Illinois at Urbana-Champaign
, 158 MEB, MC-244, 1206 West Green Street, Urbana, IL 61801alleyne@illinois.edu
J. Dyn. Sys., Meas., Control. Nov 2008, 130(6): 061003 (12 pages)
Published Online: September 24, 2008
Article history
Received:
June 8, 2006
Revised:
May 22, 2008
Published:
September 24, 2008
Citation
Eldredge, B. D., Rasmussen, B. P., and Alleyne, A. G. (September 24, 2008). "Moving-Boundary Heat Exchanger Models With Variable Outlet Phase." ASME. J. Dyn. Sys., Meas., Control. November 2008; 130(6): 061003. https://doi.org/10.1115/1.2977466
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