The study of energy saving efficiency on occupants control for classroom lighting

• Main Authors: Hsiao-Shen Wang, 王小瀋
• Other Authors: 周鼎金
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/5g53kk

碩士 === 國立臺北科技大學 === 建築系建築與都市設計碩士班（碩士在職專班） === 105 === Energy saving in school serves as an exemplary model. Classrooms, the major location where students stay, are in great demand of illumination. With such a large quantity of lights, classroom illumination is vital to the promotion of energy saving in school. Instructional time for ordinary classrooms in every school systems is fixed. Simplicity in manual control of the illumination prevents the occurrence of leaving the lights on while a classroom is empty. However, classrooms of special purposes in universities feature long period of usage, frequent comes and goes among students, and variations in numbers present, leading to situations of not turning the lights off with just a few or no one present in the classroom. Therefore, it is important to probe into energy saving of such illumination control. Room 453 in Department of Architecture, National Taipei University of Technology is a studio-like classroom, with 44 seats, 3 circuits, 40 sets of T5 double light tubes (transverse disposition of 8 rows and 5 lines), and one manual control switch of each row on the wall. In this study, human sensor control devices were installed in existing illumination circuits. Energy saving efficiency was evaluated based on previous literature, technical data, and actual testing. The results were as follows: the optimal energy saving efficiency was the pre-manual control (53%), followed by human sensor control with a 10-min delay of turning lights off (33%), post-manual control (22%), and human sensor control with a 20-min delay of turning lights off (20%). The findings indicated the best energy saving efficiency in putting manually turning lights off into practice. While such manual operation was not easily achievable, it is suggested that infrared human sensor control devices be installed as auxiliaries to achieve optimal energy saving.