Acoal fired boiler plant consumes 400kg of coal per hour. the boiler evaporates 3200 kg of water at 44°c into superheated steam at a pressure of 10 bar and 220°c. if the calorific value of coal is 32760 kj/kg, determine: i)-equivalent evaporation from an at 100°c ii)-thermal efficiency of the boiler.

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.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.