3. A steam turbine operates adiabatically and produces 4000 kW. Steam is fed to the turbine at 21 bar and 480°C. The exhaust from turbine is saturated steam at 0.1 bar and it enters the condenser where it is condensed and cooled to 30°C. What is the steam rate for the turbine, and at what rate must cooling water be supplied to the condenser if the water enters at 15°C and is heated to 25°C.

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed