Saturated water vapor enters the turbine at 15 bars (state 3) and leaves at 0.7 bar with a quality of 83.5411 percent (state 4, use this number with all given decimals). the fluid leaves the condenser as a mixture of vapor-liquid with 17.8616 percent quality ( use this number with all given decimals) at 0.7 bar (state 1). state 2 is a saturated liquid at 15 bars. assuming it is a continuous cycle, turbine and pump are adiabatic, it has a steady state flow and kinetic energy change and potential energy change are negligible. determine

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?