3. CO2 is compressed steadily from 80 kPa and 24°C to 1300 kPa and 330°C at a mass flow rate of 0.7 kg/s. The compressor is cooled using fins on the compressor and heat is lost from the compressor at a rate of 20 kW to the surroundings at 24°C. Using constant Cp of 0.978 kJ/kg. K for CO2, determine (a) the power input to the compressor in kW, (b) the isothermal efficiency, and (c) the entropy generation in kW/K.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery