Abstract: Energy flow calculation of IES (integrated energy system) aims to calculate the node voltage and pressure, branch current and mass flow rate, working medium temperature and other state parameters according to known information. In the existing researches on energy flow calculation, only the friction head loss is considered and the influence of local head loss is not involved because of the complexity of the pipe structure. The local head loss occurring at abrupt flow boundary changes, such as variable section pipes, pipe inlet and outlet, and p...
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