Analysis and Research on Flow Characteristics of Hot Water Pipeline System Hou Yingzhe, Wu Hao, Yan Xiaozhe, Zhu Haoqiang, Gao Haitao, Hu Yiming, Cui Qiguan, Xiong Jinying and Zhou Longyu E3S Web Conf., 252 (2021) 03041 Published online: 23 April 2021 DOI: 10.1051/e3sconf/202125203041