ABSTRACT

Clear examples of time-varying flow processes relevant to nuclear technology are (1) pressurization of the containment due to postulated rupture of the primary or secondary coolant systems, (2) response of a PWR pressurizer to turbine load changes, and (3) BWR suppression pool heatup by addition of primary coolant. Unlike the steady-flow analysis, variable-flow analyses can be performed with equal ease by either the control mass or the control volume approach. These approaches are demonstrated for the containment example. The pressurizer example is solved using the control volume approach. The suppression pool case is given as Problem 7.5.