I'm studying about Thermal Hydraulic. When i read book :"NUCLEAR SYSTEMS I Thermal Hydraulic Fundamentals" - Neil E. Todreas and Mujid S. Kazimi. I don't understand about : calculate "Minimum critical power ratio" & calculate "Pumping power" in problem: a) Calculate the minimum critical power ratio for a typical 10 MWe BWR operating at 100% power using the data in Tables 1-2, 1-3, and 2-3 . Assume that: 1. The axial linear power shape can be expressed as q'(z) = q'ref*exp (- az/L )sin (pi*z/L) where a = 1.96. Determine q'ref such that qmax = 44 kW/m 2. The critical bundle power is 93 19kW. b) Calculate the pumping power under steady-state operating conditions for a typical PWR reactor coolant system. Assume the following operating conditions: Core power = 38 17 MWt detal Tcore = 31 °C Reactor coolant system pressure drop = 778 kPa (1 13 psi) can anyone help me solve the problem ? or guide me solve the problem. thank!