Steam power plant , Mechanical Engineering

Assignment Help:

Steam power plant:

Steam power plant converts heat energy Q from combustion of fuel into mechanical work W of shaft rotation which is used to generate electricity. This type plant operates on thermodynamic cycle in closed loop of processes following one another such that working fluid of steam and water repeats the cycles continuously. If first law of thermodynamics is applied to thermodynamic cycle in which working fluid returns to the initial condition of it, the energy flowing into fluid at the time of cycle should be equal to that flowing out of cycle.

Qin + Win = Qout + Wout Or,    Qin  - Qout = Wout - Win Where;

Q = Rate of Heat transfer

W = Rate of work transfer, that is power

Heat and work are mutually convertible. However, quantity of work energy can be converted into heat energy, the converse is not true. A quantity of heat cannot be converted into work.

Heat flows because of temperature difference, and this means that in order to flow, two heat reservoirs should be present; a hot source and a cold sink. During heat flow from the hot source to cold sink, a fraction of flow can be converted into work energy, and function of power plant is to generate this conversion. However, some heat should flow into the cold sink because of its presence. Thus rate of heat transfer Qout of the cycle should always be positive and the efficiency of conversion of heat energy into work energy can never be 100 percent at all. Thermodynamic efficiency for the cycle, nth is the measure of how well cycle converts heat into work.

1809_Steam power plant.png


Related Discussions:- Steam power plant

Determine the heat addition, Describe carburetion. What are the basic diffe...

Describe carburetion. What are the basic different air-fuel mixture on which an engine can be operated ? Write a short note on sterling cycle. In an engine working on inlet pres

Wilson hartnell governor, how to design and fabricate wilson hartnell gover...

how to design and fabricate wilson hartnell governor?

Kinetics of a particle, Kinetics of a Particle: We have seen the effec...

Kinetics of a Particle: We have seen the effect of forces on a particle. The laws of motion for a particle are extended to include a system of particles or a rigid body. It is

Find out the magnitude of the force to keep equilibrium, Find out the magni...

Find out the magnitude of the force to keep equilibrium: Th e lever ABC of a component of machine is hinged at point B , and is subjected to a system of coplanar forces.

Steam , how to calculate the volume of HFO burn to produice steam?

how to calculate the volume of HFO burn to produice steam?

Mr, how is the theory of kinematics applied to secondary machining

how is the theory of kinematics applied to secondary machining

Compute position and magnitude of the resultant force, Compute the position...

Compute the position and magnitude of the resultant force acting on the framework shown below. What is the moment of the force system ?

Control cables and rubber parts, Control Cables: Never bend or distort con...

Control Cables: Never bend or distort control cables. This will lead to stiff operation and premature cable failure. Rubber Parts: Beware of parts containing O-rings or oil s

Define rack cutter generating process, Define Rack Cutter Generating Proces...

Define Rack Cutter Generating Process? The rack cutter generating process is also called shaping process. In this method, the generating cutter has the foam of basic rack for t

Explain rigid screed extension, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd