Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System
博士 === 臺灣大學 === 機械工程學研究所 === 98 === This thesis numerically investigates the power consumption of the centralized air-conditioning system under several operation strategies and then concludes a method to implement in practice. First, this study compares the performances of four updating rules of the...
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ndltd-TW-098NTU054890792015-10-13T18:49:39Z http://ndltd.ncl.edu.tw/handle/75145977328509973046 Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System 中央空調系統運轉耗能模擬與控制策略最佳化之研究 Yu-Fu Kuo 郭祐甫 博士 臺灣大學 機械工程學研究所 98 This thesis numerically investigates the power consumption of the centralized air-conditioning system under several operation strategies and then concludes a method to implement in practice. First, this study compares the performances of four updating rules of the particle swarm optimization through applying five mathematic problems. The linear-decayed inertia weight method is favorable for this study because of the stability of solutions searching. Then, four subjects, which are chiller-loading distribution, chillers and cooling towers cooperation, chilled-water and air-handler system cooperation and integrated centralized air-conditioning system operation, are specified to investigate the control strategies. The validations of the power consumption models of the air-conditioning components are accomplished. The simplified heat transfer models of cooling towers and wet finned-tube heat exchangers are also proposed and validated. The proposed simplified models can be implemented with a wide range and the predicting results are better than present models. The proposed operation strategy is optimal chilled-water supply temperature. In one sample case, the system operated under the proposed strategy can save the energy of 862.3 MW•hr and reduce the carbon-dioxide emission of 548.4 tons. The energy-saving rate can reach 14.85% compared with the energy consumption of the traditional operation strategy. The optimal chilled-water supply temperature can be correlated as a linear function of cooling load rate. Therefore, the chilled-water supply temperature can be adjusted easily and rapidly according to the system cooling load rate. 陳希立 2010 學位論文 ; thesis 163 zh-TW |
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博士 === 臺灣大學 === 機械工程學研究所 === 98 === This thesis numerically investigates the power consumption of the centralized air-conditioning system under several operation strategies and then concludes a method to implement in practice. First, this study compares the performances of four updating rules of the particle swarm optimization through applying five mathematic problems. The linear-decayed inertia weight method is favorable for this study because of the stability of solutions searching. Then, four subjects, which are chiller-loading distribution, chillers and cooling towers cooperation, chilled-water and air-handler system cooperation and integrated centralized air-conditioning system operation, are specified to investigate the control strategies. The validations of the power consumption models of the air-conditioning components are accomplished. The simplified heat transfer models of cooling towers and wet finned-tube heat exchangers are also proposed and validated. The proposed simplified models can be implemented with a wide range and the predicting results are better than present models. The proposed operation strategy is optimal chilled-water supply temperature. In one sample case, the system operated under the proposed strategy can save the energy of 862.3 MW•hr and reduce the carbon-dioxide emission of 548.4 tons. The energy-saving rate can reach 14.85% compared with the energy consumption of the traditional operation strategy. The optimal chilled-water supply temperature can be correlated as a linear function of cooling load rate. Therefore, the chilled-water supply temperature can be adjusted easily and rapidly according to the system cooling load rate.
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author2 |
陳希立 |
author_facet |
陳希立 Yu-Fu Kuo 郭祐甫 |
author |
Yu-Fu Kuo 郭祐甫 |
spellingShingle |
Yu-Fu Kuo 郭祐甫 Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
author_sort |
Yu-Fu Kuo |
title |
Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
title_short |
Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
title_full |
Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
title_fullStr |
Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
title_full_unstemmed |
Simulation of Energy Consumption and Optimization of Control Strategy of the Central Air-Conditioning System |
title_sort |
simulation of energy consumption and optimization of control strategy of the central air-conditioning system |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/75145977328509973046 |
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