An ideal cogeneration steam power plant must generate 5,000 kJ/s of process heat. One third of the steam is extracted from the turbine at 750 kPa for process heating, condensed in the process heater, and then mixed with the feedwater. Determine: The missing enthalpy values

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?