A study on TAB and Energy Conservation of the Centrifugal Magnetic Suspension Water Chiller Unit

• Main Authors: CHEN, YAO-PIN, 陳耀斌
• Other Authors: YU, KUANG-CHENG
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/wfa25n

碩士 === 國立勤益科技大學 === 冷凍空調與能源系 === 107 === As global warming becomes more and more serious, mitigating global warming and reducing carbon dioxide emissions for the next generation have been everyone’s responsibility. In order to responded to this and reduce global warming, and lower carbon dioxide emissions, the Executive Yuan of Taiwan promoted the policy of energy conservation and carbon emission reduction. For this purpose, the energy conservation and carbon emission reduction promotion committee was established and the green smart building system was researched and developed. The energy consumed by buildings accounts for 40% of the main energy consumed in the country. There is a construction quality management system before building design and construction, under construction, and after construction completion and acceptance. Therefore, in this study, a 150RT water chiller unit of the central air-conditioning was replaced and updated to a 240RT variable frequency centrifugal magnetic suspension water chiller unit with a cooling water pump and a chilled water pump, and a variable frequency system of the variable primary flow chilled water system was imported, to detect the temperature at the end of the chilled water pipes and the differential pressure control technology, and to adjust operational state of the load side water supply pump to be the best. A variable frequency unit and a variable frequency system were matched with chilled water temperature and flow management, to reduce the operating cost of air-conditioning and to establish the building energy management system. The high-efficiency unit was updated and the monitoring management system of the “building energy management system” was upgraded, to gain the operational states of all unit devices, the change data during the regulation process and the energy conservation benefits of the unit frequency control, so as to facilitate detailed records of operation data for analyzing the reasons. In this study, throughout the year, 1.54% of the refrigerating capacity, 39.2% of the power consumption (kW), 25.3% of the electric energy consumption (kWh/y), 25.3% of the electric charge, 4.88 return years and 25.3% of the electric energy consumption (kWh/y) for carbon emissions were saved. This study can actually achieve the goal of energy conservation benefits, reduce the impacts on environment, create high quality medical environment and protect the environment to promote sustainable development.