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Energy Audit of Building: A Case Study of A Commercial Building in Shanghai

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3 Author(s)
Xin Wang ; Sch. of Environ. & Archit., Univ. of Shanghai for Sci. & Technol., Shanghai, China ; Chen Huang ; Wuwei Cao

The paper presents a detailed study of building energy audit through a case study about a commercial building in Shanghai. Recorder data of energy consumption of each building service system are used to diagnose the weak points of the building energy-usage system, tap latent power and then a detailed energy audit study are presented. By conducting an investigation of the energy consumption, the energy audit focuses mainly on the equipment consumption, especial on air-conditioning system, electronically equipments, lighting system, and elevators, etc. During the energy audit investigation, field-measurement of the indoor environment has been carried out in winter. Indoor temperature, relative humidity and CO2 concentration have been measured during the field-measurement. Based on the energy audit results on the total energy consumption of the building from 2005 to 2008, outer climate and office occupancy rate are two leading factors for the change of the total energy consumption. The energy consumption of the air-conditioning system is at the first place, which accounts for about 45%. The energy consumption of the lighting system is just less than 10%. Some measures are put forward to increase energy efficiency.

Published in:

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Date of Conference:

28-31 March 2010

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