The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control
碩士 === 國立勤益科技大學 === 冷凍空調系 === 98 === Semiconductor factories and optoelectronics factories not only belong to high-tech industries, but also are the industries that consume energy tremendously. Take an optoelectronics factory in Northern Taiwan for example. Its facility system of electricity distrib...
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ndltd-TW-098NCIT57030262016-04-04T04:16:51Z http://ndltd.ncl.edu.tw/handle/43003047713007072185 The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control 冰水系統之冷卻水溫差最適化與節能效益分析研究 Yung-Hua Lin 林永樺 碩士 國立勤益科技大學 冷凍空調系 98 Semiconductor factories and optoelectronics factories not only belong to high-tech industries, but also are the industries that consume energy tremendously. Take an optoelectronics factory in Northern Taiwan for example. Its facility system of electricity distribution in the entire factory has accounted for 59.4%, while the chillers have accounted for 24.9% and the process machines have accounted for 40.6%. Therefore, the first priority for energy conservation certainly lies in reducing the power consumption of the chillers in the facility system, which will result in even more significant effects. In this study, the findings indicated: Theoretically, a chiller has 80%~90% of the load; the chiller whose inlet water temperature of cooling water is 26℃ has the lowest COP(Coefficient of Performance) of the energy consumption in singe refrigerating ton, which can reduce energy waste. In practical applications, the percentage rate frequently applied to the operation of a chiller is 60%~90%. Thus, under the same load,if the cooling water has small temperature difference and large flow, and if the cooling water pump is run in full-load operation, the superfluous cooling water through pipes will result in energy consumption in the cooling water pump, which will not result in too much benefit for saving power consumption in chillers. Therefore, when we manage the operation of a Chilled Water System, we can achieve the goal of reducing the operating costs, by using a Variable-Frequency Drive (VFD) to regulate the cooling water volume necessary for the chiller and by analyzing the water-side temperature difference optimization for the condenser. Dr. Yu-Lieh Wu 吳友烈 2010 學位論文 ; thesis 71 zh-TW |
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碩士 === 國立勤益科技大學 === 冷凍空調系 === 98 === Semiconductor factories and optoelectronics factories not only belong to high-tech industries, but also are the industries that consume energy tremendously. Take an optoelectronics factory in Northern Taiwan for example. Its facility system of electricity distribution in the entire factory has accounted for 59.4%, while the chillers have accounted for 24.9% and the process machines have accounted for 40.6%. Therefore, the first priority for energy conservation certainly lies in reducing the power consumption of the chillers in the facility system, which will result in even more significant effects. In this study, the findings indicated: Theoretically, a chiller has 80%~90% of the load; the chiller whose inlet water temperature of cooling water is 26℃ has the lowest COP(Coefficient of Performance) of the energy consumption in singe refrigerating ton, which can reduce energy waste. In practical applications, the percentage rate frequently applied to the operation of a chiller is 60%~90%. Thus, under the same load,if the cooling water has small temperature difference and large flow, and if the cooling water pump is run in full-load operation, the superfluous cooling water through pipes will result in energy consumption in the cooling water pump, which will not result in too much benefit for saving power consumption in chillers. Therefore, when we manage the operation of a Chilled Water System, we can achieve the goal of reducing the operating costs, by using a Variable-Frequency Drive (VFD) to regulate the cooling water volume necessary for the chiller and by analyzing the water-side temperature difference optimization for the condenser.
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Dr. Yu-Lieh Wu |
author_facet |
Dr. Yu-Lieh Wu Yung-Hua Lin 林永樺 |
author |
Yung-Hua Lin 林永樺 |
spellingShingle |
Yung-Hua Lin 林永樺 The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
author_sort |
Yung-Hua Lin |
title |
The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
title_short |
The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
title_full |
The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
title_fullStr |
The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
title_full_unstemmed |
The Analysis of Energy Saving Efficiency for Air-Conditioning System Using Cooling Water Temperature Difference Control |
title_sort |
analysis of energy saving efficiency for air-conditioning system using cooling water temperature difference control |
publishDate |
2010 |
url |
http://ndltd.ncl.edu.tw/handle/43003047713007072185 |
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