Investigation on energy consumption of public buildings in Tianjin

Basic information and energy consumption data of 50 public buildings in Tianjin have been collected. According to the statistical results, in 2016, the total building area of 50 samples is 1582628.53 m(2), the total power and comprehensive energy consumption is 11562.91 X 104 kWh and 41686.58 tce. The average power and comprehensive energy consumption per building area value is 73.06 kWh/ (m2'a) and 26.34 kgce/ (m(2).a). The building function has obvious influence on energy consumption. Among office building, school building and hospital building, hospital building has the highest energy consumption. In addition to building function, the type of cooling and heating source, construction structure and the performance of building envelope have obvious effect on energy consumption. (C) 2019 The Authors. Published by Elsevier Ltd.