Analysis of Power Consumption and Energy Saving Policies for HVAC system of an old Office Building

• Main Authors: Ching-Fu Huang, 黃慶福
• Other Authors: Win-Jet Luo
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/81946558460554347693

碩士 === 國立勤益科技大學 === 冷凍空調系 === 98 === Taiwan is a modern and developed country locating in the subtropical area of asia. The cities in Taiwan possess high building density. Due to high temperature and high humidity climate in summer. HVAC system is one of the required equipments for the buildings. However, the power consumption of the HVAC system is 50% more than the total power consumption of a building. Therefore, reducing the power consumption of HVAC system is an essential issue for energy saving. In this study, the power consumption of a large square office building which can accommodate 300 working officers was investigated. An energy consumption calculating software (eQUEST) accompanied with a simple heat load calculating method (ENVLOAD) was used to evaluated the power consumption of the building. The calculated values are well consistent with the on-site measured data in a year. Some energy saving strategies for the original HVAC system were proposed to further reduce the power consumption of the building, including adding sun shading boards of 4 ft width around the windows, reducing the chiller capacity for over design and reducing the flow rate and the corresponding horsepower of the chilled and cooling pumps. Through theses strategies, the total power consumption of the HVAC system in a year can be reduced 29.36%. The results can ber a useful reference for energy managers or system designers.