Analysis and Research on Energy-Saving Reconstruction of Building Heating System

Table 7

Energy consumption of original system.

Name	Number/power	Coal consumption rate of power supply/operation time of circulating pump	Equivalent electric energy consumption
Coal	700 t	333 g/kW∙h [20]	2100000 kW∙h
Circulating pump	20 kW	2700 hours	54000 kW∙h
Equivalent power consumption of original system			2154000 kW∙h