Strengths and Weaknesses of Existing Building Green Retrofits: Case Study of a LEED EBOM Gold Project

Energies

Yi Lu¹  Yiqi Tao²  Xiaonuan Sun³  Zhonghua Gou⁴ 

[1] Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong, China;Department of Architecture, National University of Singapore, Singapore 117 566, Singapore;Metaamo Studio/School of Urban Design, Wuhan University, Wuhan 430072, China;School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4215, Australia;

关键词: existing building;    green retrofit;    LEED;    energy audit;    building performance simulation;    measurement and verification;   

DOI  :  10.3390/en11081936

来源: DOAJ

【 摘 要 】

This study investigated the process of existing building green retrofits through examining a Leadership in Energy and Environmental Design for Existing Building: Operations and Maintenance (LEED EBOM) Gold project. The project demonstrated a standard green retrofit process for existing buildings, which includes energy auditing, building performance simulation, and measurement and verification. In this project, four energy conservation measures were applied to improve energy performance: light-emitting diode (LED) lighting, window films, green roofs, and chilled water plant upgrading and optimization. The expected energy saving was 30% after the retrofit; while the actual energy saving was 16%. The error of building performance simulation was one of uncertainties in this retrofit project. Occupancy conditions might be the main reason for this uncertainty. Strengths, weaknesses, opportunities and threats were identified and discussed for the green retrofit. The research results could be used to optimize the existing building retrofit process for better energy performance.

【 授权许可】

Unknown