Evaluation on energy consumption characteristics and effect of energy conservation measures in University Campus Buildings in Northern China

This paper compares the effect of energy conservation measures between two buildings on university campus in northern China. The paper also presents for the first time the detailed hourly energy consumption characteristics and composition of such buildings in this area for the year of 2010. Compared in buildings, 'A' is near to the average electricity consumption unit of the investigated buildings while 'B' includes energy conservation measures. Firstly, variation of heating/cooling load and electricity consumption unit has been analyzed. Then averaged electricity consumption unit with different usage like air conditioning system, lighting were examined at different periods The indices of daily electricity consumption were figured out. Furthermore, energy conservation measures were evaluated to discuss the energy conservation effect. Based on the investigation results, the heating load index per floor area of building B was found to be 40% of building A while the cooling load index per floor area was 30% of A Air conditioning system accounted for 64.8% in building A and electrical socket accounted for 61.8% in building B of the total electricity consumption. Average daily electricity consumption ratio of building B is 5.1% higher than building A indicating possibility of energy conservation in building A. Finally, from the calculation based on actual data and simulation results, it is worth noting that overall energy consumption in building A can be reduced by 38% and individually heating and cooling loads can be cut down 57.8% and 61.5% respectively.