Optimizing control strategies and sequences of operation are cost-effective methods for reducing building energy consumption. This thesis presents a near-optimal condenser water supply temperature setpoint strategy capable of minimizing the energy consumption of the chiller plant in The Cooper Union’s 41 Cooper Square academic building. An analytical model was developed to calculate the power consumption of each chiller, pump, and cooling tower within the loop. A parametric study sweeps through various condenser water supply temperatures under various weather and cooling load conditions to determine the supply temperature that minimizes energy usage. These setpoints are fitted to a function that calculates the near-optimal temperature based on wet bulb temperature and cooling load. This function can be utilized by the building management system to control the condenser water supply temperature. An 8760 model is developed to compare this strategy with other condenser water supply temperature reset strategies. This thesis also uses historical chiller plant data to conduct analyses useful for fault diagnostics. These analyses help maintain plant performance and allow the near-optimal setpoint strategy to operate properly and reduce energy consumption.
|School:||University of Connecticut|
|School Location:||United States -- Connecticut|
|Source:||MAI 82/4(E), Masters Abstracts International|
|Subjects:||Mechanical engineering, Energy|
|Keywords:||8760 model, Chiller plant, Condenser water supply Temperature, Energy, Optimization, Parametric study|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be