Performance criterion of a steam power plant, Mechanical Engineering

Performance criterion of a steam power plant:

Sol.:  The design of power plant can be determined largely by the consideration of capital cost and operating cost; the former depends mainly on the plant size and latter is primarily a function of overall efficiency of the plant. Generally the efficiency can be improved, but only by increasing the capital cost of the plant, thus a suitable compromise should be reached between capital costs and operating costs.


l. Specific steam consumption (S.S.C.). The plant capital cost is mainly dependent upon the size of the plant components. These sizes will depend on the flow rate of the steam themselves which is passed through them.

Hence, an indication of relative capital cost of different steam plant is given by the mass flow rate m of the steam required per unit power output, which means by the specific steam consumption (s.s.c.) or steam rate

1119_Performance criterion of a steam power plant.png 

In M.K.S. system.

1 horsepower hour ≈ 632 k cal

1 kilowatt hour ≈ 860 k cal.

861_Performance criterion of a steam power plant1.png 

Work ratio can be defined as ratio of net plant output to gross (turbine) output.

1326_Performance criterion of a steam power plant2.png

Posted Date: 10/15/2012 6:54:19 AM | Location : United States







Related Discussions:- Performance criterion of a steam power plant, Assignment Help, Ask Question on Performance criterion of a steam power plant, Get Answer, Expert's Help, Performance criterion of a steam power plant Discussions

Write discussion on Performance criterion of a steam power plant
Your posts are moderated
Related Questions
Resultant force with the help of moments: How do you find the position of resultant force with the help of moments? Sol.: At first find the magnitude and direction of t

Explain the Homogeneous System - Thermodynamic Homogeneous System: A system, which contains a single phase, is known as homogeneous system. Such as, Mixture of water plus nitri

Q. External coatings on vessels? All pressure vessels that will be installed underground shall have an external coating applied according to the following procedure: • All e

strain energy = m2l/2Ei

Remove cover left crank case and check for leakage: Before attending oil seal leakage check if any leak is there in the highlighted points - Neutral switch "o" ring leak, Shifter

can a swimming pool that is full be cracked or lifted by hydrostatic pressure?

What is solar energy?

Safety Benefits - Industrial Safety An industry or a company which follows safety programmes is benefitted in several ways. The benefits are shared among employer and employee

V acuu m (Or Vacuum pressure) (P vacc ): It is pressure of fluid, which is always less than atmospheric pressure. Pressure in a steam condenser is one such examp

(a ) What are the demerits and merits of sliding mesh gear box? (b) Show a four speed gear box, including reverse speed for a passenger car and illustrate how the speed ratio is