Several types of hydraulic turbines are identified by names, such as the kaplan turbine, francis turbine, pelton wheels, and the propeller type. using information from the web and your own words, describe these turbines and highlight their differences, including performance and applications.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false