Economic Analysis of VFD Centrifugal Chiller

• Main Authors: Liu-Ching Lung, 劉青龍
• Other Authors: Yung-Chung Chang
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/kcezqh

碩士 === 國立臺北科技大學 === 冷凍空調工程系所 === 93 === Motors of chiller、cooling tower、pump and air handing units are the major part of electric power consumptions for HVAC system in normal building. When the building cooling load changed, Change the motor speed by variable frequency drive (VFD) is a good energy saving strange in recently years. Although commercial building largest single electric consumption is chiller. The relationship between variable frequency drive (VFD) and centrifugal chiller only can be seen in the paper study before. The large VFD (200~1200 HP) becomes more popular because cost down and performance improved. The technology of VFD centrifugal chiller becomes possible. This paper will use computer software to calculate chiller system design and energy consumption in Taiwan climate. Study the energy differences between the fix speed and variable speed centrifugal chiller in 4 seasons of a standard year. In order to set up a chillers economic analysis model for HVAC system. Design 4 different chiller tonnage combinations for a shopping center. Finding the best energy saving chiller’s design for this building. This chillers economic analysis model can help HVAC consultant and owner to find a good way know VFD centrifugal chiller saving energy for their building.