Energy efficient analysis of staged constant-variable flow regulation for heating systems

Wu Jieqing, Jiang Yongcheng, Zhao Chunyang, Fang Xiumu and Zheng Ruiyun

2015.02.05

Based on conventional regulation methods, dividing the heating season into two stages, according to magnitude of the heating load, in which respectively regulating the supply water temperature under the minimum flow rate condition and adjusting the supply water flow at settled supply temperature. Presents the regulation curve, analyses the influencing factors of the minimum flow rate, and represents the calculating method of heating parameters. A case calculation shows that the method has a better energy efficient effect.