Single-phase pump model for analysis of LMFBR heat transport systems

Autor:	E. Cazzoli, I.K. Madni
Rok vydání:	1978
Předmět:	Impeller Engineering Natural circulation business.industry Rotodynamic pump Specific speed Mechanical engineering Torque Mechanics Transient (oscillation) business Variable displacement pump Friction torque
DOI:	10.2172/6594526
Popis:	A single-phase pump model for transient and steady-state analysis of LMFBR heat transport systems is presented. Fundamental equations of the model are angular momentum balance to determine transient impeller speed and mass balance (including thermal expansion effects) to determine the level of sodium in the pump tank. Pump characteristics are modeled by homologous head and torque relations. All regions of pump operation are represented with reverse rotation allowed. The model also includes option for enthalpy rise calculations and pony motor operation. During steady state, the pump operating speed is determined by matching required head with total load in the circuit. Calculated transient results are presented for pump coastdown and double-ended pipe break accidents. The report examines the influence of frictional torque and specific speed on predicted response for the pump coastdown to natural circulation transient. The results for a double-ended pipe break accident indicate the necessity of including all regions of operation for pump characteristics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e64e0020ff0b7c7feec9daf9c505afdd https://doi.org/10.2172/6594526 Zobrazit plný text záznamu