Acoal-burning steam power plant produces a net power of 300 mw with an overall thermal efficiency of 33 percent. the actual gravimetric air–fuel ratio in the furnace is calculated to be 12 kg air/kg fuel. the heating value of the coal is 28,000 kj/kg. determine the amount of coal consumed during a 24-hour period. (you must provide an answer before moving to the next part.) the amount of coal consumed is kg/s.

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