Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 119, Issue -, Pages 1-13Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2016.04.027
Keywords
Ground source heat pump; Air-conditioning system; Optimization; Robustness; Maximum start-ups number; On/off control
Categories
Funding
- National Science Foundation of China [51178201]
- Program for New Century Excellent Talents in University - China [2011CDB292]
- Independent Innovation Research Fund of Huazhong University of Science and Technology [2015QN116]
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This paper studies the optimization of a small-scale central air-conditioning system, in which the cooling is provided by a ground source heat pump (GSHP) equipped with an on/off capacity control. The optimization strategy aims to optimize the overall system energy consumption and simultaneously guarantee the robustness of the space air temperature control without violating the allowed GSHP maximum start-ups number per hour specified by customers. The set-point of the chilled water return temperature and the width of the water temperature control band are used as the decision variables for the optimization. The performance of the proposed strategy was tested on a simulation platform. Results show that the optimization strategy can save the energy consumption by 9.59% in a typical spring day and 2.97% in a typical summer day. Meanwhile it is able to enhance the space air temperature control robustness when compared with a basic control strategy without optimization. (C) 2016 Elsevier Ltd. All rights reserved.
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