Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480°C, and the condenser pressure is 8 kPa. Steam expands through the first-stage turbine to 1.2 MPa and then is reheated to 480°C. Assume the pump and each turbine stage has an isentropic efficiency of 85% and 92%, respectively. Determine the thermal efficiency as a percent (do not include the % symbol in your answer)

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

How to convert a friction to decimal ?

Acylindrical tank is capable of storing 20,000 foot-pounds [ft ibf] of energy for use in your roommate's 2006 subaru wrx. the tank contains nitrous oxide, n20, which you may assume is an ideal gas and has a molecular weight of 44 grams per mole 1g/mol. the tank fits in a space in the trunk that is no wider than 6 inches fin] and no longer than 10 inches [inj, and you may assume the warm clemson weather is keeping the temperature of the tank inside the trunk at a constant 100 degrees fahrenheit [°fl. what is the weight of the nitrous oxide occupying the tank when full, in units of dynes