Energy Losses in a Typical Steam Power Plant

(1) Heat loss up through the stack. (Boiler exhaust gasses).

(2) Heat loss in the condenser. (Turbine steam exhaust cooling).

Regards JD.

(3) Heat loss everywhere.

SOLUTION - Insulate

Thank you for your reply. Do u have any idea or reference that might be useful to further the research?

Have a look at this handbook:

http://www1.eere.energy.gov/industry/bestpractices/pdfs/steamhandbook.pdf

And look around the DOE website for other information

http://www1.eere.energy.gov/industry/bestpractices/techpubs_steam.html

Thank you guys...

This is highly appreciated...

More power...

Once steam is produced the largest steam losses (besides leaks) is a result of inadequate removal of the condensate present in the steam lines. Working with a qualified technician, using the latest Venturi steam trap technology, these losses can be permanently minimized. Further information available at www.nataleenterprises.com

The efficiency curve for a coal fired power plant would look something like this parabolic curve (give or take one order of magnitude):

y=0.009 x^2 + 5 x + 630

Where: y=net megawatts output

x=MMBtu/hr heat input

Major points of heat rate improvement might include: 3D turbine blade designs, improved turbine steam seals, boiler slag removal, increased convection pass surface area, air heater seals, boiler lagging/insulation, ambient air leaks, process optimization (temp & pressure, heat exchanger level control, fuel/air tuning & NOX control), reduced auxiliary costs (station power, house air, steam heating, pumping losses, etc.), cooling tower improvements.

Dear Mr. BIBO,

Lot of Answers are given by CR4 Members.

I want to supplement to these answers.

The losses to be referred further are: Loss due to

1. Incomplete combustion Loss, Forming CO instead of CO2: Ensure Perfect Combustion

2. Un-burnt Fuel parts loss: Ensure proper Air-Fuel Ratio.

3. Radiation Loss: Thermal Insulation should be properly decided

4. Heat Loss due to MOISTURE in Fuel, known as CONDENSATION Loss: reduce the moisture in the Fuel

5. Heat Loss due to Blow-Down : Judiciously decide the quantity of Blow-Down, and recover the Heat by Feed Water.

6. Sensible Heat Loss: Recover the Heat through Air Heater.

Thanks,

Dhayanandhan.s