Question # 04 a. Explain Why steam Condenser is used in steam power plant b. Draw the block diagram of combined cycle power plant and discuss how the combined cycle power efficiency is greater than the gas power plant.
Understand the following block diagram for the simple steam cycle power plant.
If the condenser was not used in the power plant, then the vapors after the turbine in the power plant will be needed to brought at the boiler temperature.
Understand that the specific volume of gases is much higher than the specific volume of the liquids.
Thus, the work of compression of the gases will be very much higher than the work of compressing the liquid using a pump.
In fact, the work of the compression will sometimes may be also greater than the work output of the turbine, which will result in no network output from the plant.
In the case of liquids, the work of compression using the pump is very small as compared to the work output of the turbine.
Step by step
Solved in 2 steps with 2 images
