Study on Energy Performance of Magnetic Bearing Centrifugal Chiller Applied in Factory Buildings

• Main Authors: HUANG, KAI-CHANG, 黃凱章
• Other Authors: KE, MING-TSUN
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/n2m9x7

碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系 === 107 === The purpose of this study was to study on energy performance of Magnetic Bearing Centrifugal Chiller Applied in Factory Buildings. Given that there were more manufacturers producing this kind of chillers and emphasizing the higher efficiency and energy saving rate, it did a 24-hours observation and collected data at it’s peak load and general load in order to verify the statement above and anticipate more general use of these chillers in office buildings and factories in the near furture. The research was based on the air conditioning system in the certain office building.We collected and recorded related data through its central supervisory and remote control system day by day. By analyzing and making cross comparison of the data in operating period (Evaportor Leaving Water Temperature is set at 7 to 10 degrees Celsius.),we came to the conclusion that when adjusting the evaporator leaving water temperature to a higher degree，not only lowers down the loading rate of Magnetic Bearing Centrifugal Chiller in operation,but enhances the data-bases of the following items like the chilled water temperature difference,cooling water temperature difference, input power consumption of the compressor,coefficient of performance(C. O. P),power consumption of each Refrigeration Ton(kW/RT)，intake and exhaust pressure ratio of the system(PHP/PLP).The result showed that the energy efficiency is considerable when operating the Magnetic Bearing Centrifugal Chiller in its partial load. Due to the fact that the performance and energy saving efficiency of the frequency magnetic centrifugal chiller was not fully studied and revealed to the air conditioning industry, we expected the result of this research to have a certain reference value in choosing this chiller as the first priority considering its energy saving effect