Produce a schematic diagram of the system, Physics

Produce a schematic diagram of the system:

The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is reheated to 535°C in the boiler. The reheated steam is then expanded to 8.5bar at 378°C in the intermediate pressure turbine, after which a certain percentage of the steam is bled off to a feedwater heater. The remaining steam is then  expanded through a low pressure turbine to 0.05bar and a dryness fraction of 0.94. All 'steam' entering the feed pumps shall be a saturated fluid.

a)  Produce a schematic diagram of the system, together with an appropriate labelled T-s diagram.

b)  Using steam tables only, calculate:

(i)  The isentropic efficiencies of  the three turbines;

(ii)  The cycle efficiencies;

(iii)  The percentage of steam bled off to the feedwater heater;

(iv)  If the turbines generate 200MW power, how much cooling water must be used per hour, assuming that water can be returned to the river at only 10°C above its extraction temperature? (Assume that the specific heat capacity of water is 4.18 kJ/(kg·K));

(v)  If a high pressure surface-type feedwater heater is placed between the boiler and HP feedwater pump to raise the feedwater temperature, configure the cycle and analyse the impact on the cycle performance.

Posted Date: 2/14/2013 5:46:18 AM | Location : United States







Related Discussions:- Produce a schematic diagram of the system, Assignment Help, Ask Question on Produce a schematic diagram of the system, Get Answer, Expert's Help, Produce a schematic diagram of the system Discussions

Write discussion on Produce a schematic diagram of the system
Your posts are moderated
Related Questions
A serviceable spring balance The quality of rubber deteriorates rather rapidly in unfavourable climatic conditions; a coiled steel spring is preferable. The pattern defined ha

state and explain ampere''s circuital law

Q State Joule's law of heating? The heat produced in a conductor is (i) Unswervingly proportional to the square of the current for a given R (ii) Unswervingly proportiona

Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.

In whole analog to the work energy theorem for the translator motion, it might be stated for rotational motion as:  Δ W rot =  K rot The net rotational work given by the force

WHAT IS COMPOSITION OF SIMPLE HARMONIC MOTION AND WHAT IS THE NUMERICAL SOLUTION OF TWO S.H.M OCCURRING IN THE SAME DIRECTION ?

what is the physical significance of damping constent

Introduce concept about the carbon dioxide laser. A test target is vaporized and bursts within flame onto irradiation through a high power continuous wave carbon dioxide laser

what do you mean by nuclear fusion and fusion? explain briefly giving certain examples.

It uses in electric cooling devices, turbines ...........etc